FBN2

gene
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Also known as DA9

Summary

FBN2 (fibrillin 2, HGNC:3604) is a protein-coding gene on chromosome 5q23.3, encoding Fibrillin-2 (P35556). Fibrillins are structural components of 10-12 nm extracellular calcium-binding microfibrils, which occur either in association with elastin or in elastin-free bundles.

The protein encoded by this gene is a component of connective tissue microfibrils and may be involved in elastic fiber assembly. Mutations in this gene cause congenital contractural arachnodactyly.

Source: NCBI Gene 2201 — RefSeq curated summary.

At a glance

  • Gene–disease (curated): congenital contractural arachnodactyly (Definitive, ClinGen) — +2 more curated relationships
  • GWAS associations: 38
  • Clinical variants (ClinVar): 4,111 total — 44 pathogenic, 84 likely-pathogenic
  • Phenotypes (HPO): 67
  • Cancer driver (intOGen): loss-of-function (tumor-suppressor-like) across 1 cancer types
  • Dosage sensitivity (ClinGen): haploinsufficiency no evidence, triplosensitivity no evidence
  • MANE Select transcript: NM_001999

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:3604
Approved symbolFBN2
Namefibrillin 2
Location5q23.3
Locus typegene with protein product
StatusApproved
AliasesDA9
Ensembl geneENSG00000138829
Ensembl biotypeprotein_coding
OMIM612570
Entrez2201

Gene structure

Transcript identifiers

Ensembl transcripts: 16 — 8 retained_intron, 6 protein_coding, 2 protein_coding_CDS_not_defined

ENST00000262464, ENST00000502468, ENST00000507835, ENST00000508053, ENST00000508989, ENST00000511489, ENST00000514742, ENST00000703782, ENST00000703783, ENST00000703784, ENST00000703785, ENST00000703786, ENST00000703787, ENST00000706682, ENST00000939404, ENST00000939405

RefSeq mRNA: 1 — MANE Select: NM_001999 NM_001999

CCDS: CCDS34222

Canonical transcript exons

ENST00000262464 — 65 exons

ExonStartEnd
ENSE00001130334128257909128259829
ENSE00003459865128376731128376853
ENSE00003477332128530595128530693
ENSE00003481923128519273128519368
ENSE00003485096128464724128464921
ENSE00003499663128369182128369334
ENSE00003550772128527872128527967
ENSE00003589246128374628128374750
ENSE00003590581128366377128366430
ENSE00003677122128536402128536484
ENSE00003747050128537350128538245
ENSE00003888749128318149128318271
ENSE00003888781128277880128278005
ENSE00003888945128301382128301510
ENSE00003889041128337997128338122
ENSE00003889375128335455128335577
ENSE00003889448128335988128336113
ENSE00003889618128300817128300936
ENSE00003889669128286718128286849
ENSE00003889813128278635128278841
ENSE00003890126128344385128344510
ENSE00003890200128263425128263656
ENSE00003890404128290732128290884
ENSE00003890483128328696128328821
ENSE00003890773128304957128305082
ENSE00003890801128349955128350005
ENSE00003890996128291529128291654
ENSE00003891171128378771128378890
ENSE00003891437128273840128273968
ENSE00003891620128305511128305636
ENSE00003892132128302973128303089
ENSE00003892159128311300128311425
ENSE00003892185128276038128276160
ENSE00003892264128338933128339061
ENSE00003892286128392018128392155
ENSE00003892550128357276128357395
ENSE00003892586128446481128446606
ENSE00003892640128408674128408799
ENSE00003892841128309247128309399
ENSE00003892965128345357128345584
ENSE00003893034128330573128330695
ENSE00003893153128288438128288557
ENSE00003893259128349347128349472
ENSE00003893404128334719128334844
ENSE00003893596128289127128289252
ENSE00003893721128332912128333034
ENSE00003893857128361723128361848
ENSE00003893895128312634128312795
ENSE00003894108128364600128364725
ENSE00003894184128289882128289947
ENSE00003894380128350868128351005
ENSE00003894494128271999128272118
ENSE00003894646128377752128377877
ENSE00003894658128274567128274683
ENSE00003894862128393135128393368
ENSE00003894873128309983128310108
ENSE00003894997128307135128307203
ENSE00003895021128305823128305948
ENSE00003895354128335170128335295
ENSE00003895432128318879128319001
ENSE00003895513128280192128280317
ENSE00003895742128311885128311953
ENSE00003895772128261736128261907
ENSE00003896177128287308128287430
ENSE00003896178128395122128395274

Expression profiles

Bgee: expression breadth ubiquitous, 194 present calls, max score 97.94.

FANTOM5 (CAGE): breadth ubiquitous, TPM avg 39.3636 / max 1321.8586, expressed in 1270 samples.

FANTOM5 promoters (12 alternative TSS)

Promoter IDTPM avgSamples expressed
6323930.65271202
632374.6322932
632341.8638750
632380.7097339
632410.4878310
632350.4776123
632400.2815176
632330.190181
632320.028114
632360.02043

Top tissues by expression

288 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
cartilage tissueUBERON:000241897.94gold quality
placentaUBERON:000198797.89gold quality
adrenal tissueUBERON:001830396.68gold quality
deciduaUBERON:000245093.90gold quality
stromal cell of endometriumCL:000225593.38gold quality
heart right ventricleUBERON:000208085.81gold quality
embryoUBERON:000092284.79gold quality
monocyteCL:000057680.12gold quality
male germ line stem cell (sensu Vertebrata) in testisCL:0000089 ∩ UBERON:000047380.09gold quality
mononuclear cellCL:000084279.86gold quality
buccal mucosa cellCL:000233679.72gold quality
leukocyteCL:000073879.45gold quality
left ventricle myocardiumUBERON:000656677.28silver quality
ganglionic eminenceUBERON:000402376.99gold quality
apex of heartUBERON:000209876.96gold quality
ventricular zoneUBERON:000305376.60gold quality
adrenal glandUBERON:000236975.98gold quality
cardiac ventricleUBERON:000208275.76gold quality
heart left ventricleUBERON:000208475.59gold quality
germinal epithelium of ovaryUBERON:000130475.35gold quality
right adrenal gland cortexUBERON:003582775.17gold quality
right adrenal glandUBERON:000123374.70gold quality
periodontal ligamentUBERON:000826674.54gold quality
primordial germ cell in gonadCL:0000670 ∩ UBERON:000099174.32gold quality
adrenal cortexUBERON:000123574.32gold quality
left adrenal glandUBERON:000123474.30gold quality
bone marrowUBERON:000237174.16gold quality
pigmented layer of retinaUBERON:000178273.90gold quality
retinaUBERON:000096673.89gold quality
left adrenal gland cortexUBERON:003582572.80gold quality

Single-cell (SCXA)

Detected in 5 experiment(s), a significant marker in 5.

ExperimentMarker?Max mean expression
E-MTAB-6701yes1000.42
E-MTAB-10018yes96.92
E-HCAD-10yes28.28
E-MTAB-9388yes11.11
E-ANND-3no0.00

Regulation

Is transcription factor: no

Upstream regulators (CollecTRI, top): E2F1, E2F2, E2F3, E2F4, GLI1

miRNA regulators (miRDB)

188 targeting FBN2, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-9-5P100.0072.282361
HSA-MIR-1277-5P100.0073.955056
HSA-MIR-3163100.0077.238605
HSA-MIR-4795-3P100.0074.624024
HSA-MIR-126-5P100.0072.713180
HSA-MIR-4262100.0073.263931
HSA-MIR-340-5P100.0072.504437
HSA-MIR-1252-5P100.0069.802774
HSA-MIR-190A-3P100.0080.355520
HSA-MIR-366299.9973.825684
HSA-MIR-371A-3P99.9966.7791
HSA-MIR-196A-1-3P99.9972.152772
HSA-MIR-181A-5P99.9972.962995
HSA-MIR-181B-5P99.9972.972996
HSA-MIR-181C-5P99.9972.952996
HSA-MIR-181D-5P99.9973.042997
HSA-MIR-118499.9968.191458
HSA-MIR-485-3P99.9870.681585
HSA-MIR-539-3P99.9870.741616
HSA-MIR-548P99.9872.253784
HSA-MIR-520D-5P99.9873.344883
HSA-MIR-524-5P99.9873.434882
HSA-MIR-32-5P99.9875.211964
HSA-MIR-92A-3P99.9875.211960
HSA-MIR-92B-3P99.9875.251955
HSA-MIR-314899.9775.066478
HSA-MIR-50799.9770.111915
HSA-MIR-548AA99.9670.643753
HSA-MIR-548AP-3P99.9670.643753
HSA-MIR-548T-3P99.9670.643753

Functional genomics

ClinGen dosage: haploinsufficiency 0 (no evidence), triplosensitivity 0 (no evidence). ClinGen Gene Dosage Map

Literature-anchored findings (GeneRIF, showing 40)

  • Ten novel mutations have been identified in the critical region of FBN2, indicating a mutation detection rate of 75% in this limited region; none of the mutations altered amino acids in the calcium binding consensus sequence of EGF-like domains. (PMID:11754102)
  • fibrillins can directly interact in an N- to C-terminal fashion to form homotypic fibrillin-1 or heterotypic fibrillin-1/fibrillin-2 microfibrils (PMID:12399449)
  • there are distinct functions for fibrillin-2 in peripheral nerves (PMID:12429739)
  • In kidney, liver, rib anlagen, notochord fibrillin-1 and fibrillin-2 are distributed differentially. Different roles for fibrillin-1 and -2 in the development of these structures. (PMID:12524050)
  • Relaxin regulates its mRNA and protein expression by human dermal fibroblasts and murine fetal skin (PMID:12590922)
  • No associations of intracranial aneurysm and FBN2 were found. (PMID:12750963)
  • Results identify MAGP-2 binding regions in the N-terminal portion of fibrillin-1 and -2 molecules. (PMID:15131124)
  • A comprehensive genetic analysis of FBN2 was performed in patients with Marfan syndrome or Marfan-related phenotypes. (PMID:16835936)
  • ternary complex formation between fibrillin-1, fibulins, and tropoelastin demonstrated that fibulin-2 and -5 but much less fibulin-4, are able to act as molecular adaptors between fibrillin-1 and tropoelastin (PMID:17255108)
  • Discrete domains of fibrillins-1 and -2 interact with lung fibroblast integrins and direct their migration in the presence of platelet-derived growth factor (PDGF)-A. (PMID:18006876)
  • In 14 probands, 13 new and one previously described FBN2 mutation including a mutation in exon 17, expanding the region in which FBN2 mutations occur in CCA. (PMID:19006240)
  • Methylation of CLDN6, FBN2, RBP1, RBP4, TFPI2, and TMEFF2 in esophageal squamous cell carcinoma. (PMID:19288010)
  • EGFR, fibrillin-2, P-cadherin and AP2beta as biomarkers for rhabdomyosarcoma diagnostics. (PMID:19469909)
  • A novel mutation (C1425Y) in the FBN2 gene in a father and son with congenital contractural arachnodactyly is reported. (PMID:19473076)
  • Examine association between FBN2 SNPs and intracranial aneurysms in Japanese cohort. (PMID:19506372)
  • Data show that in wound healing and sclerotic skin diseases, a marked increase of fibrillin-2 expression was found by immunohistology. (PMID:20195245)
  • Data demonstrated that N-terminal fibrillin-2 epitopes are masked in postnatal microfibrils. (PMID:20404337)
  • These results suggest that both fibrillin-1 and fibrillin-2 are essential for the formation of thick oxytalan fibers in the ciliary zonule. (PMID:21851253)
  • There was no association of overall methylation of FBN2 in the serum DNA with age, maximal tumor size, extent of tumor, tumor site, histology, presence of lymph node metastasis, distant metastasis, or Dukes’ stage. (PMID:23060561)
  • Fibrillin mutations causing Weill-Marchesani syndrome and acromicric and geleophysic dysplasias disrupt heparan sulfate interactions (PMID:23133647)
  • we demonstrate an important role for FBN1 and FBN2 in AIS pathogenesis. We show that rare variants are enriched in severely affected AIS patients and are significantly associated with curve severity. (PMID:24833718)
  • Rare and common variants in extracellular matrix gene Fibrillin 2 (FBN2) are associated with macular degeneration. (PMID:24899048)
  • DNA sequence variation within the FBN2 gene is associated with both Achilles tendon (AT) and anterior cruciate ligament (ACL) rupture. (PMID:25429546)
  • The presence of the splice site mutation in FBN2 gene has been confirmed in a Japanese family with congenital contractural arachnodactyly complicated with aortic dilatation and dissection. (PMID:25975422)
  • A novel missense mutation, c.3769T>C (p.C1257R) in FBN2 was identified responsible for the genetic cause in a family with congenital contractural arachnodactyly. (PMID:27196565)
  • BAV patients have an increased FBN (especially FBN2) gene expression level in the ascending aorta, irrespective of dilatation, whereas MMP expression does not change significantly. (PMID:27634926)
  • Study described a novel mutation seen in a family with three generations of congenital contractural arachnodactyly (CCA). Whole exome sequencing in two affected individuals identified a novel missense mutation in the FBN2 gene in all affected family members. (PMID:28379158)
  • Decellularized lung scaffolds treated with FBN-2 and TN-C prior to re-epithelialization supported greater epithelial proliferation and tissue remodeling. (PMID:28662401)
  • Case Report: femoral aneurysm in patient with FBN2 mutation. (PMID:29742989)
  • Sequencing analysis showed a novel missense mutation in exon 30 of FBN2 gene [c.3973G>A, p.Asp1325Asn; Chr5 (g.127670862C>T) according to NM_001999.3] (PMID:29864108)
  • No common variant of FBN2 was, however, found to be significantly associated with AIS. (PMID:30044367)
  • The c.3528C>A (p.Asn1176Lys) variant of the FBN2 gene probably underlies the pathogenesis of CCA in our case of congenital contractural arachnodactyly (PMID:32335871)
  • A novel pathogenic mutation in FBN2 associated with congenital contractural arachnodactyly for preimplantation genetic diagnosis. (PMID:32747207)
  • Delineation of a new fibrillin-2-opathy with evidence for a role of FBN2 in the pathogenesis of carpal tunnel syndrome. (PMID:32900841)
  • Fibrillin 2 gene knockdown inhibits invasion and migration of lung cancer cells. (PMID:33287941)
  • Mutation analysis and prenatal diagnosis of a family with congenital contractural arachnodactyly. (PMID:33638605)
  • Expanding the phenotypic spectrum of Mendelian connective tissue disorders to include prominent kidney phenotypes. (PMID:34355836)
  • POGLUT2 and POGLUT3 O-glucosylate multiple EGF repeats in fibrillin-1, -2, and LTBP1 and promote secretion of fibrillin-1. (PMID:34411563)
  • FBN2 Silencing Recapitulates Hypoxic Conditions and Induces Elastic Fiber Impairment in Human Dermal Fibroblasts. (PMID:35163744)
  • The fibrillinopathies: New insights with focus on the paradigm of opposing phenotypes for both FBN1 and FBN2. (PMID:35419902)

Cross-species orthologs

3 orthologs

OrganismSymbolGene ID
danio_reriofbn2aENSDARG00000051896
mus_musculusFbn2ENSMUSG00000024598
rattus_norvegicusFbn2ENSRNOG00000043219

Paralogs (2): FBN3 (ENSG00000142449), FBN1 (ENSG00000166147)

Protein

Protein identifiers

Fibrillin-2P35556 (reviewed: P35556)

All UniProt accessions (4): P35556, A0A9H4AZX0, D6RJI3, E9PHW4

UniProt curated annotations — full annotation on UniProt →

Function. Fibrillins are structural components of 10-12 nm extracellular calcium-binding microfibrils, which occur either in association with elastin or in elastin-free bundles. Fibrillin-2-containing microfibrils regulate the early process of elastic fiber assembly. Regulates osteoblast maturation by controlling TGF-beta bioavailability and calibrating TGF-beta and BMP levels, respectively. Hormone secreted by trophoblasts that promotes trophoblast invasiveness. Has glucogenic activity: is able to increase plasma glucose levels.

Subunit / interactions. Interacts with BMP2, BMP4, BMP7, BMP10 and GDF5. Interacts with MFAP2 and MFAP5. Interacts with ADAMTSL5. Interacts with MFAP4.

Subcellular location. Secreted Secreted. Extracellular space. Extracellular matrix Secreted.

Tissue specificity. Almost exclusively expressed in placenta. Expressed at much lower level in other tissues. Expressed in fetal eye (18 weeks)in the retinal pigment epithelium (RPE), the choroid, Bruch’s membrane and in the sclera. Not expressed in the neural retina. Present at high level in cytotrophoblasts as compared with syncytiotrophoblasts at 8-9 weeks of pregnancy (at protein level). Levels in the serum increase during pregnancy (at protein level).

Post-translational modifications. N-glycosylated. O-glycosylated on serine residues by POGLUT2 and POGLUT3.

Disease relevance. Contractural arachnodactyly, congenital (CCA) [MIM:121050] An autosomal dominant connective tissue disorder characterized by contractures, arachnodactyly, scoliosis, and crumpled ears. The disease is caused by variants affecting the gene represented in this entry. Macular degeneration, early-onset (EOMD) [MIM:616118] An ocular disorder characterized by macular changes resulting in progressive loss of visual acuity. The disease is caused by variants affecting the gene represented in this entry.

Similarity. Belongs to the fibrillin family.

Isoforms (2)

UniProt IDNamesCanonical?
P35556-11yes
P35556-22

RefSeq proteins (1): NP_001990* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR000152EGF-type_Asp/Asn_hydroxyl_sitePTM
IPR000742EGFDomain
IPR001881EGF-like_Ca-bd_domDomain
IPR009030Growth_fac_rcpt_cys_sfHomologous_superfamily
IPR013032EGF-like_CSConserved_site
IPR017878TB_domDomain
IPR018097EGF_Ca-bd_CSConserved_site
IPR024731NELL2-like_EGFDomain
IPR026823cEGFDomain
IPR036773TB_dom_sfHomologous_superfamily
IPR040872Fibrillin_U_NDomain
IPR049388FBN_EGF_NDomain
IPR049883NOTCH1_EGF-likeDomain
IPR052080vWF_C/EGF_FibrillinFamily

Pfam: PF00683, PF07645, PF12661, PF12662, PF12947, PF14670, PF18193, PF21364

UniProt features (300 total): disulfide bond 141, domain 56, sequence variant 45, glycosylation site 39, sequence conflict 8, splice variant 3, region of interest 3, chain 2, signal peptide 1, propeptide 1, compositionally biased region 1

Structure

Experimental structures (PDB)

0 structures.

Predicted structure (AlphaFold)

No AlphaFold model available for P35556 — AlphaFold DB does not currently provide models for proteins above ~3000 aa.

Functional residue map

Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.

Disulfide bonds (141): 115–124, 119–130, 132–141, 149–159, 153–164, 166–175, 180–190, 184–196, 198–207, 280–292, 287–301, 303–316, 322–334, 329–343, 345–358, 498–510, 505–519, 521–533, 539–549, 544–558 …

Glycosylation sites (39): 2594, 2675, 2808, 298, 340, 492, 516, 555, 597, 638, 679, 832, 872, 977, 1095, 1112, 1180, 1222, 1263, 1347 …

Function

Pathways and Gene Ontology

Reactome pathways

3 pathways

IDPathway
R-HSA-1474228Degradation of the extracellular matrix
R-HSA-1566948Elastic fibre formation
R-HSA-2129379Molecules associated with elastic fibres

MSigDB gene sets: 469 (showing top): GOBP_REGULATION_OF_CELLULAR_RESPONSE_TO_GROWTH_FACTOR_STIMULUS, LEE_NEURAL_CREST_STEM_CELL_DN, WALLACE_PROSTATE_CANCER_RACE_UP, GOBP_BONE_TRABECULA_MORPHOGENESIS, BENPORATH_ES_WITH_H3K27ME3, CHIBA_RESPONSE_TO_TSA_UP, TSENG_IRS1_TARGETS_UP, GOBP_SKELETAL_SYSTEM_DEVELOPMENT, TTTGTAG_MIR520D, MODULE_45, GOBP_OSTEOBLAST_DIFFERENTIATION, ATGCAGT_MIR217, GOBP_AMEBOIDAL_TYPE_CELL_MIGRATION, GOBP_ANIMAL_ORGAN_MORPHOGENESIS, MODULE_205

GO Biological Process (11): glucose metabolic process (GO:0006006), embryonic limb morphogenesis (GO:0030326), positive regulation of bone mineralization (GO:0030501), obsolete sequestering of TGFbeta in extracellular matrix (GO:0035583), glucose homeostasis (GO:0042593), camera-type eye development (GO:0043010), positive regulation of osteoblast differentiation (GO:0045669), embryonic eye morphogenesis (GO:0048048), bone trabecula formation (GO:0060346), signal transduction (GO:0007165), limb morphogenesis (GO:0035108)

GO Molecular Function (5): hormone activity (GO:0005179), extracellular matrix structural constituent (GO:0005201), calcium ion binding (GO:0005509), extracellular matrix constituent conferring elasticity (GO:0030023), protein binding (GO:0005515)

GO Cellular Component (3): microfibril (GO:0001527), extracellular region (GO:0005576), extracellular matrix (GO:0031012)

Reactome top-level categories

Rollup of top-2 pathways:

CategoryPathways
Extracellular matrix organization2
Elastic fibre formation1

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
hexose metabolic process1
limb morphogenesis1
embryonic appendage morphogenesis1
bone mineralization1
regulation of bone mineralization1
positive regulation of ossification1
positive regulation of biomineral tissue development1
carbohydrate homeostasis1
eye development1
osteoblast differentiation1
positive regulation of cell differentiation1
regulation of osteoblast differentiation1
embryonic organ morphogenesis1
eye morphogenesis1
skeletal system morphogenesis1
trabecula formation1
bone trabecula morphogenesis1
cell communication1
cellular process1
signaling1
regulation of cellular process1
cellular response to stimulus1
appendage morphogenesis1
limb development1
receptor ligand activity1
structural molecule activity1
extracellular matrix1
metal ion binding1
extracellular matrix structural constituent1
structural molecule activity conferring elasticity1
binding1
elastic fiber1
supramolecular fiber1
cellular anatomical structure1
external encapsulating structure1

Protein interactions and networks

STRING

2418 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
FBN2ELNP15502950
FBN2MFAP2P55001948
FBN2ADAMTS17Q8TE56902
FBN2MFAP5Q13361879
FBN2FN1P02751837
FBN2FBN1P35555768
FBN2ADAMTS10Q9H324761
FBN2ADAMTSL5Q6ZMM2757
FBN2MYH3P11055742
FBN2TGFBR2P37173721
FBN2TGFBR1P36897720
FBN2MFAP3P55082716
FBN2COL3A1P02461713
FBN2MFAP1P55081686
FBN2ADAMTS6Q9UKP5648

IntAct

75 interactions, top by confidence:

ABTypeScore
repGTF2F2psi-mi:“MI:0914”(association)0.730
KLK5DENND11psi-mi:“MI:0914”(association)0.640
HRGPLSCR1psi-mi:“MI:0914”(association)0.590
tatPPM1Gpsi-mi:“MI:0914”(association)0.560
VWCEZNF316psi-mi:“MI:0914”(association)0.530
PRG3ZNF324psi-mi:“MI:0914”(association)0.530
FBXO2TMEM131Lpsi-mi:“MI:0914”(association)0.530
GREM2ZZEF1psi-mi:“MI:0914”(association)0.530
AURKAWDR62psi-mi:“MI:0914”(association)0.530
ZNF224LRP4psi-mi:“MI:0914”(association)0.530
ZFP41LRP4psi-mi:“MI:0914”(association)0.530
ZNF408LRP4psi-mi:“MI:0914”(association)0.530
WNT7ALDLRpsi-mi:“MI:0914”(association)0.530
DBF4BCDC7psi-mi:“MI:0914”(association)0.530
NOTCH2ZNF316psi-mi:“MI:0914”(association)0.530
FBN1FBN2psi-mi:“MI:0407”(direct interaction)0.440
FBN2FBN2psi-mi:“MI:0407”(direct interaction)0.440
FBN2FN1psi-mi:“MI:0407”(direct interaction)0.440
ADAMTSL5FBN2psi-mi:“MI:0915”(physical association)0.400
NLRP12FBN2psi-mi:“MI:0915”(physical association)0.370
EGLN3FAM168Bpsi-mi:“MI:0914”(association)0.350
FBN2psi-mi:“MI:0914”(association)0.350

BioGRID (77): FBN2 (Affinity Capture-MS), FBN2 (Affinity Capture-MS), FBN2 (Affinity Capture-MS), FBN2 (Affinity Capture-MS), FBN2 (Affinity Capture-MS), FBN2 (Affinity Capture-MS), FBN2 (Affinity Capture-MS), FBN2 (Affinity Capture-MS), FBN2 (Affinity Capture-MS), FBN2 (Affinity Capture-MS), FBN2 (Affinity Capture-MS), FBN2 (Affinity Capture-MS), FBN2 (Affinity Capture-MS), FBN2 (Affinity Capture-MS), FBN2 (Affinity Capture-MS)

ESM2 similar proteins: A1A5Y0, A2VCU8, A5A6L1, A6QR11, O00622, O42182, O57472, O73775, P18406, P23142, P35555, P35556, P53813, P59511, P98089, P98133, P98155, P98166, Q00968, Q08761, Q08879, Q09163, Q13219, Q2VWQ2, Q5R3Z7, Q61220, Q61554, Q61555, Q61592, Q62918, Q62919, Q7T3Q2, Q7ZXL5, Q8AWW5, Q8CFM6, Q8CJ69, Q8MJJ9, Q8N8U9, Q8R4K8, Q8R4Y4

Diamond homologs: A0A1U9VX91, A2AJ76, O08999, O43897, O57382, O57460, O75095, P13497, P35556, P98063, P98070, P98133, Q00918, Q14766, Q61555, Q62381, Q75N90, Q7KVA1, Q8C088, Q8CG19, Q8JI28, Q9DER7, Q9TV36, A0A1D5NSM8, A1A5Y0, A2AVA0, A2RUV0, A2VCU8, A5A8Y8, A6QR11, B3EWY9, B5DFC9, G3I6Z6, O88322, P07996, P0C6B8, P10493, P12105, P14585, P21783

SIGNOR signaling

0 interactions.

Disease & clinical

Cancer significance

From intOGen — cancer-driver classification: loss-of-function (tumor-suppressor-like) across 1 cancer types — NBL.

Clinical variants and AI predictions

ClinVar

4111 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic44
Likely pathogenic84
Uncertain significance1664
Likely benign1445
Benign244

Top pathogenic / likely-pathogenic (30)

Variant IDHGVSClassification
1333458NM_001999.4(FBN2):c.4296C>A (p.Tyr1432Ter)Pathogenic
1420674NM_001999.4(FBN2):c.4592_4594+3delPathogenic
1454127NM_001999.4(FBN2):c.3472+2T>CPathogenic
152430GRCh38/hg38 5q23.3(chr5:128434801-128486349)x1Pathogenic
18402NM_001999.4(FBN2):c.3777T>A (p.Asn1259Lys)Pathogenic
213262NM_001999.4(FBN2):c.525T>A (p.Cys175Ter)Pathogenic
213320NM_001999.4(FBN2):c.3724+2T>CPathogenic
2136329NM_001999.4(FBN2):c.3535G>T (p.Gly1179Cys)Pathogenic
2176896NM_001999.4(FBN2):c.4466G>A (p.Cys1489Tyr)Pathogenic
253630GRCh37/hg19 5q23.3(chr5:127744084-127866529)x1Pathogenic
2583090NM_001999.4(FBN2):c.3230G>A (p.Cys1077Tyr)Pathogenic
2734777NM_001999.4(FBN2):c.4273T>C (p.Cys1425Arg)Pathogenic
2760917NM_001999.4(FBN2):c.3770G>A (p.Cys1257Tyr)Pathogenic
2835587NM_001999.4(FBN2):c.3598+6T>GPathogenic
2851145NM_001999.4(FBN2):c.3298T>G (p.Cys1100Gly)Pathogenic
3246295NC_000005.9:g.(?127653831)(127654703_?)delPathogenic
3337308NM_001999.4(FBN2):c.5801-633_6166+1908delPathogenic
411834NM_001999.4(FBN2):c.4306T>C (p.Cys1436Arg)Pathogenic
4281621NM_001999.4(FBN2):c.5009T>G (p.Phe1670Cys)Pathogenic
449443NM_001999.4(FBN2):c.4222+5G>APathogenic
458763NM_001999.4(FBN2):c.3736T>C (p.Cys1246Arg)Pathogenic
4814225NM_001999.4(FBN2):c.4346-1G>APathogenic
520NM_001999.4(FBN2):c.1171G>A (p.Glu391Lys)Pathogenic
522NM_001999.4(FBN2):c.4346-2A>TPathogenic
523NM_001999.4(FBN2):c.3725-15A>GPathogenic
524NM_001999.4(FBN2):c.3974-26T>GPathogenic
525NM_001999.4(FBN2):c.3343G>C (p.Asp1115His)Pathogenic
526NM_001999.4(FBN2):c.3425G>T (p.Cys1142Phe)Pathogenic
527NM_001999.4(FBN2):c.3759T>G (p.Cys1253Trp)Pathogenic
547356NM_001999.4(FBN2):c.3467G>T (p.Cys1156Phe)Pathogenic

SpliceAI

10355 predictions. Top by Δscore:

VariantEffectΔscore
5:128259826:CAAC:Cacceptor_gain1.0000
5:128259830:C:CCacceptor_gain1.0000
5:128259830:CT:Cacceptor_loss1.0000
5:128261727:TATAC:Tdonor_loss1.0000
5:128261728:ATAC:Adonor_loss1.0000
5:128261729:TACT:Tdonor_loss1.0000
5:128261730:AC:Adonor_loss1.0000
5:128261732:T:TAdonor_loss1.0000
5:128261733:CA:Cdonor_loss1.0000
5:128261734:A:ACdonor_gain1.0000
5:128261734:ACAG:Adonor_gain1.0000
5:128261735:C:CAdonor_gain1.0000
5:128261735:CA:Cdonor_gain1.0000
5:128261735:CAG:Cdonor_gain1.0000
5:128261735:CAGC:Cdonor_gain1.0000
5:128261735:CAGCA:Cdonor_gain1.0000
5:128261763:T:TAdonor_gain1.0000
5:128261903:AGTGG:Aacceptor_gain1.0000
5:128261904:GTGG:Gacceptor_gain1.0000
5:128261905:TGG:Tacceptor_gain1.0000
5:128261906:GG:Gacceptor_gain1.0000
5:128261908:C:CCacceptor_gain1.0000
5:128261912:T:Cacceptor_gain1.0000
5:128261912:T:TCacceptor_gain1.0000
5:128263423:AC:Adonor_gain1.0000
5:128263424:CC:Cdonor_gain1.0000
5:128271995:TCA:Tdonor_loss1.0000
5:128271997:A:ACdonor_gain1.0000
5:128271998:C:CCdonor_gain1.0000
5:128271998:CCGA:Cdonor_gain1.0000

AlphaMissense

0 scored. Top likely-pathogenic:

dbSNP variants (sampled 300 via entrez): RS1000002122 (5:128396993 T>C), RS1000009705 (5:128288730 A>C,T), RS1000037622 (5:128354222 A>G), RS1000039159 (5:128535446 T>C), RS1000045244 (5:128478155 T>C), RS1000049515 (5:128294084 G>A), RS1000054378 (5:128461389 T>G), RS1000058654 (5:128343755 C>T), RS1000080380 (5:128294322 G>A), RS1000088916 (5:128260569 G>C), RS1000090111 (5:128347978 G>C,T), RS1000107571 (5:128355574 G>A), RS1000107946 (5:128461113 G>A), RS1000112136 (5:128500938 G>A), RS1000114701 (5:128444318 C>T)

Disease associations

OMIM: gene MIM:612570 | disease phenotypes: MIM:121050, MIM:607086, MIM:616118, MIM:130000, MIM:208150, MIM:609192, MIM:123100, MIM:154700, MIM:607087, MIM:614429

GenCC curated gene-disease

DiseaseClassificationInheritance
congenital contractural arachnodactylyDefinitiveAutosomal dominant
macular degeneration, early-onsetLimitedAutosomal dominant
carpal tunnel syndromeLimitedAutosomal dominant

ClinGen Gene-Disease Validity (1)

Expert-panel classifications — Definitive > Strong > Moderate > Limited > Disputed > Refuted.

DiseaseClassificationInheritance
congenital contractural arachnodactylyDefinitiveAD

Mondo (19): congenital contractural arachnodactyly (MONDO:0007363), familial thoracic aortic aneurysm and aortic dissection (MONDO:0019625), macular degeneration, early-onset (MONDO:0014501), Ehlers-Danlos syndrome (MONDO:0020066), connective tissue disorder (MONDO:0003900), prostate cancer (MONDO:0008315), brain ischemia (MONDO:0005299), fetal akinesia deformation sequence 1 (MONDO:0100101), Loeys-Dietz syndrome (MONDO:0018954), brain aneurysm (MONDO:0005291), dilated cardiomyopathy (MONDO:0005021), craniosynostosis (MONDO:0015469), Marfan syndrome (MONDO:0007947), Ehlers-Danlos syndrome, vascular type (MONDO:0017314), congenital heart disease (MONDO:0005453)

Orphanet (12): Congenital contractural arachnodactyly (Orphanet:115), Familial thoracic aortic aneurysm and aortic dissection (Orphanet:91387), Ehlers-Danlos syndrome (Orphanet:98249), Familial prostate cancer (Orphanet:1331), Fetal akinesia deformation sequence (Orphanet:994), Loeys-Dietz syndrome (Orphanet:60030), Dilated cardiomyopathy (Orphanet:217604), Craniosynostosis (Orphanet:1531), Marfan syndrome type 1 (Orphanet:284963), Marfan syndrome (Orphanet:558), Vascular Ehlers-Danlos syndrome (Orphanet:286), NON RARE IN EUROPE: Ventricular septal defect (Orphanet:1480)

HPO phenotypes

67 total (30 of 67 shown, HPO-id order):

HPOTerm
HP:0000006Autosomal dominant inheritance
HP:0000218High palate
HP:0000248Brachycephaly
HP:0000268Dolichocephaly
HP:0000347Micrognathia
HP:0000470Short neck
HP:0000545Myopia
HP:0000608Macular degeneration
HP:0000767Pectus excavatum
HP:0000768Pectus carinatum
HP:0000938Osteopenia
HP:0001083Ectopia lentis
HP:0001166Arachnodactyly
HP:0001181Adducted thumb
HP:0001239Wrist flexion contracture
HP:0001270Motor delay
HP:0001371Flexion contracture
HP:0001377Limited elbow extension
HP:0001387Joint stiffness
HP:0001519Disproportionate tall stature
HP:0001533Slender build
HP:0001629Ventricular septal defect
HP:0001631Atrial septal defect
HP:0001634Mitral valve prolapse
HP:0001643Patent ductus arteriosus
HP:0001647Bicuspid aortic valve
HP:0001653Mitral regurgitation
HP:0001762Talipes equinovarus
HP:0001836Camptodactyly of toe
HP:0001840Metatarsus adductus

GWAS associations

38 associations (top):

StudyTraitp-value
GCST000426_13Obesity (extreme)4.000000e-06
GCST001263_16Height4.000000e-06
GCST001531_11Temperament9.000000e-06
GCST002579_18Heschl’s gyrus morphology5.000000e-06
GCST002715_5Breastfeeding duration4.000000e-06
GCST003475_8Beard thickness1.000000e-06
GCST003487_9Response to fenofibrate (total cholesterol levels)5.000000e-06
GCST003542_108Night sleep phenotypes3.000000e-06
GCST003784_7Multiple system atrophy6.000000e-06
GCST004279_17Systolic blood pressure8.000000e-12
GCST005580_110Intraocular pressure3.000000e-08
GCST006061_150Atrial fibrillation2.000000e-07
GCST006979_118Heel bone mineral density1.000000e-27
GCST006979_119Heel bone mineral density6.000000e-10
GCST006979_120Heel bone mineral density2.000000e-19
GCST007094_196Diastolic blood pressure2.000000e-07
GCST007096_40Pulse pressure1.000000e-06
GCST007099_205Systolic blood pressure2.000000e-10
GCST007267_207Systolic blood pressure9.000000e-22
GCST007269_238Pulse pressure9.000000e-15
GCST007927_53Medication use (beta blocking agents)2.000000e-11
GCST007928_97Medication use (diuretics)7.000000e-15
GCST007929_31Medication use (calcium channel blockers)1.000000e-11
GCST008839_383Height3.000000e-10
GCST008839_584Height5.000000e-13
GCST009734_7Severe aplastic anemia5.000000e-06
GCST010002_37Refractive error9.000000e-11
GCST010701_65Cortical surface area (MOSTest)1.000000e-09
GCST010702_168Subcortical volume (MOSTest)1.000000e-17
GCST010703_157Brain morphology (MOSTest)3.000000e-09

EFO canonical traits (16, from GWAS)

EFO IDTrait name
EFO:0004825temperament and character inventory
EFO:0006864breastfeeding duration
EFO:0007806total cholesterol change measurement
EFO:0006335systolic blood pressure
EFO:0004695intraocular pressure measurement
EFO:0009270heel bone mineral density
EFO:0006336diastolic blood pressure
EFO:0005763pulse pressure measurement
EFO:0009929Beta blocking agent use measurement
EFO:0009928Diuretic use measurement
EFO:0009930Calcium channel blocker use measurement
EFO:0006927severe aplastic anemia
EFO:0004346neuroimaging measurement
EFO:0007789BMI-adjusted waist circumference
EFO:0008039BMI-adjusted hip circumference
EFO:0005213central corneal thickness

MeSH disease descriptors (15)

DescriptorNameTree numbers
D002545Brain IschemiaC10.228.140.300.150; C14.907.253.092
D002311Cardiomyopathy, DilatedC14.280.195.160; C14.280.238.070; C16.320.488.750
D002349Carpal Tunnel SyndromeC10.668.829.500.500.200; C10.668.829.550.200; C26.844.150.206
D003240Connective Tissue DiseasesC17.300
D003398CraniosynostosesC05.116.099.370.894.232; C05.660.207.240; C05.660.906.364; C16.131.621.207.240; C16.131.621.906.364
D004535Ehlers-Danlos SyndromeC14.907.454.240; C15.378.463.515.240; C16.131.831.428; C16.320.850.260; C17.300.200.310; C17.800.804.428; C17.800.827.260
D006330Heart Defects, CongenitalC14.240.400; C14.280.400; C16.131.240.400
D006345Heart Septal Defects, VentricularC14.240.400.560.540; C14.280.400.560.540; C16.131.240.400.560.540
D002532Intracranial AneurysmC10.228.140.300.510.600; C14.907.055.635; C14.907.253.560.300
D055947Loeys-Dietz SyndromeC05.660.207.532; C14.907.055.239.587; C14.907.109.139.587; C16.131.077.537; C16.320.510
D008382Marfan SyndromeC05.116.099.674; C14.240.400.725; C14.280.400.725; C16.131.077.550; C16.131.240.400.720; C16.320.540; C17.300.500
D011471Prostatic NeoplasmsC04.588.945.440.770; C12.100.500.260.750; C12.100.500.565.625; C12.200.294.260.750; C12.200.294.565.625; C12.200.758.409.750; C12.900.619.750
D013285StrabismusC10.292.562.887; C11.590.810
C564627Aortic Aneurysm, Familial Thoracic 2 (supp.)
C536211Congenital contractural arachnodactyly (supp.)

Drugs & pharmacology

Drug and pharmacology data

Is drug target: no

PharmGKB: 1 entry (VIP=true, CPIC=false)

PharmGKB variants

1 variants.

VariantGenesLevelScore#Clin annotsDrugs
rs12656510FBN20.000

CTD chemical–gene interactions

88 total (human), top 30 by PubMed support.

ChemicalActions (top 5)PubMed papers
Valproic Acidaffects cotreatment, increases expression, decreases expression6
sodium arseniteaffects expression, decreases expression, affects cotreatment, increases abundance, increases expression5
Tretinoindecreases expression, decreases reaction4
bisphenol Adecreases expression, increases methylation, affects cotreatment3
Aflatoxin B1increases expression, affects expression3
methylmercuric chloridedecreases expression, increases expression2
arsenitedecreases reaction, decreases expression, affects binding2
cobaltous chloridedecreases expression, decreases secretion2
entinostatdecreases expression, affects cotreatment2
4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamideaffects cotreatment, increases expression, decreases expression2
Benzo(a)pyreneincreases expression, decreases methylation2
Dexamethasoneincreases expression, affects cotreatment, decreases expression2
Phenylmercuric Acetateaffects cotreatment, increases expression2
Tobacco Smoke Pollutionaffects expression, decreases expression2
Cadmium Chloridedecreases expression, increases expression2
Genisteindecreases expression, increases expression2
aristolochic acid Idecreases expression1
bisphenol Faffects cotreatment, decreases expression1
TAK-243increases sumoylation1
2,4,6-tribromophenolincreases expression1
alpha-pineneincreases abundance, affects cotreatment, increases oxidation1
propionaldehydeincreases expression1
decabromobiphenyl etherincreases expression1
kojic acidincreases expression1
trichostatin Aincreases expression1
o,p’-DDTincreases expression1
sulforaphanedecreases expression1
tetrabromobisphenol Aincreases expression1
zinc chromatedecreases expression, increases abundance1
manganese chlorideaffects cotreatment, decreases expression, increases abundance1

Cellosaurus cell lines

2 cell lines: 1 finite cell line, 1 induced pluripotent stem cell

First 10 cell lines (id-ordered, not curated):

CellosaurusNameCategorySex
CVCL_HQ15GM21995Finite cell lineFemale
CVCL_WN17HELPi001-AInduced pluripotent stem cellFemale

Clinical trials (associated diseases)

432 trials via MONDO — disease-level, not drug-specific.

TrialPhaseStatusTitle
NCT00277563PHASE4COMPLETEDShort and Long Term Exposure to Unique, Time-Varying Pulsed Electro-Magnetic Fields in Refractory Carpal Tunnel Syndrome
NCT00678314PHASE4COMPLETEDPatient Controlled Regional Analgesia Following Carpal Tunnel Release: A Double-Blind Study Using Distal Perineural Catheters
NCT00904202PHASE4COMPLETEDA Study Of Lidocaine Patch 5% Alone, Gabapentin Alone, And Lidocaine Patch 5% And Gabapentin In Combination For The Relief Of Pain In Patients With Diverse Peripheral Neuropathic Pain Conditions
NCT01310218PHASE4COMPLETEDLength of Post Operative Dressing After Carpal Tunnel Release
NCT01588158PHASE4TERMINATEDPatient Satisfaction With Pain Relief After Ambulatory Hand Surgery
NCT01751347PHASE4COMPLETEDBupivacaine Versus Lidocaine Local Anesthesia
NCT02038452PHASE4COMPLETEDInjection Versus Splinting in Carpal Tunnel Syndrome
NCT02140632PHASE4COMPLETEDEfficacy Study of Local Steroid Injection and Wrist Splinting for Carpal Tunnel Syndrome
NCT02652390PHASE4COMPLETEDLocal Steroid Injection vs Placebo in Carpal Tunnel Syndrome
NCT03196817PHASE4UNKNOWNNon-surgical Treatment of Carpal Tunnel Syndrome: Night Splint Versus Local Corticosteroid Infiltration
NCT03432858PHASE4COMPLETEDPreoperative Antibiotics for Carpal Tunnel Release Surgery
NCT03649763PHASE4COMPLETEDOnset and Duration of Forearm Nerve Blockade
NCT03792945PHASE4COMPLETEDComparison of the Efficacy of Corticosteroid Injection and ESWT in Patients With CTS
NCT03802448PHASE4COMPLETEDMyofascial Release on Electrophysiological Measures of Pregnant Women With CTS
NCT03867539PHASE4RECRUITINGExparel and Education to Avoid Opioids After Carpal Tunnel Release
NCT04017390PHASE4WITHDRAWNThe Effect of Theraworx Foam in Carpal Tunnel Syndrome
NCT04025203PHASE4COMPLETEDPain Reduction and Changes in Upper Limb Function Produced by Different Treatments in Carpal Tunnel Syndrome
NCT04119739PHASE4COMPLETEDPain Reduction Produced by Different Treatments in Carpal Tunnel Syndrome
NCT04245371PHASE4COMPLETEDLidocaine Patch 1.8% for Moderate to Severe Pain From Carpal Tunnel Syndrome
NCT04285281PHASE4COMPLETEDOral Gabapentin and Median Nerve Mobilization in the Treatment of Carpal Tunnel Syndrome
NCT04328805PHASE4COMPLETEDIbuprofen and Neural Mobilization Treatment in Carpal Tunnel Syndrome.
NCT04460521PHASE4RECRUITINGThe ACTS Trial: N-acetylcysteine (NAC) and Night-splinting as a Non-operative Treatment for Carpal Tunnel Syndrome
NCT04515966PHASE4UNKNOWNA Comparison of Ultrasound-guided Steroid Injection With Wrist Splint in Carpal Tunnel Syndrome
NCT04767724PHASE4COMPLETEDExtracorporeal Shock Wave Versus Local Corticosteroid Injection for Carpal Tunnel Syndrome
NCT05306548PHASE4ACTIVE_NOT_RECRUITINGA Norwegian Trial Comparing Treatment Strategies for Carpal Tunnel Syndrome
NCT05475808PHASE4ACTIVE_NOT_RECRUITINGComparison of the Efficacy of Different Treatment Methods in Patients With Carpal Tunnel Syndrome
NCT05496764PHASE4UNKNOWNLocal Injection of Steroid VS.Glucose 5% in Carpal Tunnel Syndrome
NCT06209957PHASE4COMPLETEDStudy of Single Platelet-Rich Plasma Local Injection Vs. Single Corticosteroid Local Injection in Carpal Tunnel Syndrome
NCT06249503PHASE4COMPLETEDUltrasound Guided Activated and Non Activated Platelet Rich Plasma Injection Versus Hydro Dissection by Steroids.
NCT06282640PHASE4COMPLETEDComparıson Of Electromyography Results Before And After Vıtamın D Treatment In Patıents Wıth Carpal Tunnel Syndrome
NCT06349265PHASE4COMPLETEDUltrasound-Guided 5% Dextrose Injection for Carpal Tunnel Syndrome
NCT06349824PHASE4COMPLETEDDextrose, Steroid, PRP: Choosing the Right Injection for CRS Relief; a RCT
NCT06778759PHASE4COMPLETEDIbuprofen Arginine and Neural Mobilization Versus Ibuprofen Arginine in the Treatment of Carpal Tunnel Syndrome
NCT06778798PHASE4COMPLETEDGabapentin and Neural Mobilization Pain Reduction Effect Compared to Only Gabapentine
NCT06781489PHASE4COMPLETEDPain Reduction Caused by the Combined Treatment of Physiotherapy, Oral Gabapentin and Oral Ibuprofen Arginine.
NCT07105540PHASE4COMPLETEDComparison of Injection Techniques in Carpal Tunnel Syndrome
NCT07283874PHASE4NOT_YET_RECRUITINGDoes it Matter the Volume of Injectate on the Outcome of Ultrasound-guided Perineural Injection for Carpal Tunnel Syndrome
NCT04890431PHASE4UNKNOWNImpact of Oxygen Therapy on Fatigue in Patients With Hypermobile-type Ehlers-Danlos Syndrome
NCT05603741PHASE4ACTIVE_NOT_RECRUITINGLocal Anesthetic Response in Ehlers-Danlos Syndrome (EDS) and Healthy Volunteers
NCT01042158PHASE4COMPLETEDA Clinical Trial of Ambrisentan and Tadalafil in Pulmonary Arterial Hypertension Associated With Systemic Sclerosis