MFAP2

gene
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Also known as MAGPMAGP-1

Summary

MFAP2 (microfibril associated protein 2, HGNC:7033) is a protein-coding gene on chromosome 1p36.13, encoding Microfibrillar-associated protein 2 (P55001). Component of the elastin-associated microfibrils.

Microfibrillar-associated protein 2 is a major antigen of elastin-associated microfibrils and a candidate for involvement in the etiology of inherited connective tissue diseases. Four transcript variants encoding two different isoforms have been found for this gene.

Source: NCBI Gene 4237 — RefSeq curated summary.

At a glance

  • GWAS associations: 65
  • Clinical variants (ClinVar): 40 total
  • MANE Select transcript: NM_002403

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:7033
Approved symbolMFAP2
Namemicrofibril associated protein 2
Location1p36.13
Locus typegene with protein product
StatusApproved
AliasesMAGP, MAGP-1
Ensembl geneENSG00000117122
Ensembl biotypeprotein_coding
OMIM156790
Entrez4237

Gene structure

Transcript identifiers

Ensembl transcripts: 26 — 22 protein_coding, 4 protein_coding_CDS_not_defined

ENST00000375534, ENST00000375535, ENST00000476788, ENST00000478684, ENST00000490075, ENST00000492598, ENST00000884385, ENST00000884386, ENST00000884387, ENST00000884388, ENST00000884389, ENST00000930328, ENST00000930329, ENST00000930330, ENST00000930331, ENST00000930332, ENST00000930333, ENST00000930334, ENST00000930335, ENST00000930336, ENST00000930337, ENST00000930338, ENST00000930339, ENST00000930340, ENST00000930341, ENST00000954861

RefSeq mRNA: 4 — MANE Select: NM_002403 NM_001135247, NM_001135248, NM_002403, NM_017459

CCDS: CCDS174, CCDS44071

Canonical transcript exons

ENST00000375535 — 9 exons

ExonStartEnd
ENSE000019254381698058716980620
ENSE000034807461697689716976923
ENSE000034871631697526916975342
ENSE000035403381697564316975730
ENSE000035452611697710916977198
ENSE000036253201697650116976545
ENSE000036440061697823716978314
ENSE000036642861697670816976794
ENSE000036899741697450216975023

Expression profiles

Bgee: expression breadth ubiquitous, 132 present calls, max score 98.65.

FANTOM5 (CAGE): breadth ubiquitous, TPM avg 57.8569 / max 585.1303, expressed in 1276 samples.

FANTOM5 promoters (6 alternative TSS)

Promoter IDTPM avgSamples expressed
1055847.61571235
105626.2216662
105592.1679876
105570.7320436
105600.7288287
105610.3909217

Top tissues by expression

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

TissueAnatomy IDExpression scoreQuality
stromal cell of endometriumCL:000225598.65gold quality
ventricular zoneUBERON:000305397.79gold quality
gall bladderUBERON:000211097.38gold quality
endocervixUBERON:000045896.96gold quality
right coronary arteryUBERON:000162596.37gold quality
ganglionic eminenceUBERON:000402396.34gold quality
placentaUBERON:000198795.72gold quality
descending thoracic aortaUBERON:000234595.67gold quality
thoracic aortaUBERON:000151595.30gold quality
ascending aortaUBERON:000149695.28gold quality
body of uterusUBERON:000985395.05gold quality
ectocervixUBERON:001224994.54gold quality
mucosa of stomachUBERON:000119994.49gold quality
left coronary arteryUBERON:000162694.29gold quality
uterine cervixUBERON:000000293.85gold quality
myometriumUBERON:000129692.79gold quality
smooth muscle tissueUBERON:000113592.46gold quality
right ovaryUBERON:000211892.28gold quality
vaginaUBERON:000099692.14gold quality
ovaryUBERON:000099292.08gold quality
left ovaryUBERON:000211992.00gold quality
left uterine tubeUBERON:000130391.79gold quality
popliteal arteryUBERON:000225091.25gold quality
tibial arteryUBERON:000761091.24gold quality
subcutaneous adipose tissueUBERON:000219091.12gold quality
primordial germ cell in gonadCL:0000670 ∩ UBERON:000099190.87gold quality
adipose tissueUBERON:000101389.82gold quality
skin of legUBERON:000151189.54gold quality
fallopian tubeUBERON:000388988.74gold quality
zone of skinUBERON:000001488.60gold quality

Single-cell (SCXA)

Detected in 8 experiment(s), a significant marker in 7.

ExperimentMarker?Max mean expression
E-MTAB-9154yes417.10
E-MTAB-6701yes57.76
E-HCAD-10yes46.34
E-MTAB-8410yes38.43
E-MTAB-6678yes17.62
E-ANND-3yes15.68
E-MTAB-10042yes8.03
E-CURD-95no59.39

Regulation

Is transcription factor: no

miRNA regulators (miRDB)

19 targeting MFAP2, 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-3163100.0077.238605
HSA-MIR-4692100.0067.322066
HSA-MIR-56899.9869.862084
HSA-MIR-477599.9875.006394
HSA-MIR-548AJ-3P99.9673.385345
HSA-MIR-548X-3P99.9673.385345
HSA-MIR-548J-3P99.9472.614881
HSA-MIR-548AE-3P99.9372.664867
HSA-MIR-548AH-3P99.9372.544872
HSA-MIR-548AM-3P99.9372.544872
HSA-MIR-548AQ-3P99.9372.664867
HSA-MIR-6835-3P99.9370.492904
HSA-MIR-498-3P99.9171.271114
HSA-MIR-806599.1970.381289
HSA-MIR-6770-5P98.9766.761853
HSA-MIR-314998.7767.131639
HSA-MIR-1212098.0568.441768
HSA-MIR-6872-3P97.0866.99750
HSA-MIR-394395.8764.57523

Literature-anchored findings (GeneRIF, showing 14)

  • These results demonstrate that microfibril-associated glycoprotein-1 is capable of cumulative binding to distinct regions on tropoelastin, with different apparent dissociation constants and different amounts of bound protein. (PMID:15233806)
  • microfibrillar proteins MAGP-1 and MAGP-2 can function outside of their role in elastic fibers to activate a cellular signaling pathway (PMID:16492672)
  • Study suggests a dual role for MAGP1, with extracellular MAGP1A involved in ECM function, and intracellular MAGP1B modulating the expression of genes that function in cell adhesion, migration and control of ECM deposition. (PMID:17692555)
  • Demonstrate specific immunolocalization of fibrillin-1, MAGP-1, and LTBP-1 with elastin in the outer annulus fibrosus of the fetal human intravertebral disc. (PMID:21540769)
  • Decreased MFAP2 gene expression in the endometrium of patients with implantation failure after in vitro ertilization treatment. (PMID:22885067)
  • Our characterization of alternative forms of MAGP2 present in the extracellular space not only enhances diversity of this ECM protein but also provides a previously unrecognized molecular mechanism for regulation of MAGP2 biological activity. (PMID:23201136)
  • Data show that MAGP-1, component of the extracellular matrix interact with fibrillin and impart unique biological properties that influence microfibril function. Mutations in MAGP-1 have been linked to thoracic aneurysms and metabolic diseases and mice lacking either one have defects in multiple organ systems, reflecting the widespread distribution of microfibrils in vertebrate tissues. [review] (PMID:29524629)
  • Integrated profiling identifies SLC5A6 and MFAP2 as novel diagnostic and prognostic biomarkers in gastric cancer patients. (PMID:31894266)
  • MFAP2 Promotes the Proliferation of Cancer Cells and Is Associated With a Poor Prognosis in Hepatocellular Carcinoma. (PMID:33280519)
  • Genome-Scale Analysis Identified NID2, SPARC, and MFAP2 as Prognosis Markers of Overall Survival in Gastric Cancer. (PMID:33758160)
  • Decreased Levels of Microfibril-Associated Glycoprotein (MAGP)-1 in Patients with Colon Cancer and Obesity Are Associated with Changes in Extracellular Matrix Remodelling. (PMID:34445187)
  • MFAP2 aggravates tumor progression through activating FOXM1/beta-catenin-mediated glycolysis in ovarian cancer. (PMID:35546486)
  • MAGP1 maintains tumorigenicity and angiogenesis of laryngeal cancer by activating Wnt/beta-catenin/MMP7 pathway. (PMID:36645203)
  • MFAP2 promotes the progression of oral squamous cell carcinoma by activating the Wnt/beta-catenin signaling pathway through autophagy. (PMID:37592847)

Cross-species orthologs

2 orthologs

OrganismSymbolGene ID
mus_musculusMfap2ENSMUSG00000060572
rattus_norvegicusMfap2ENSRNOG00000008257

Paralogs (1): MFAP5 (ENSG00000197614)

Protein

Protein identifiers

Microfibrillar-associated protein 2P55001 (reviewed: P55001)

Alternative names: Microfibril-associated glycoprotein 1

All UniProt accessions (1): P55001

UniProt curated annotations — full annotation on UniProt →

Function. Component of the elastin-associated microfibrils.

Subunit / interactions. Forms a ternary complex with BGN and ELN. Interacts with FBN1 (via N-terminal domain) and FBN2.

Subcellular location. Secreted. Extracellular space. Extracellular matrix.

Post-translational modifications. Forms intermolecular disulfide bonds either with other MAGP-1 molecules or with other components of the microfibrils. May form transglutaminase cross-links. O-glycosylated.

Similarity. Belongs to the MFAP family.

Isoforms (3)

UniProt IDNamesCanonical?
P55001-1Ayes
P55001-2A'
P55001-3B

RefSeq proteins (4): NP_001128719, NP_001128720, NP_002394, NP_059453 (=MANE)

Domains & families (InterPro)

IDNameType
IPR003582ShKT_domDomain
IPR008673MAGPFamily

Pfam: PF05507

UniProt features (14 total): modified residue 4, disulfide bond 3, splice variant 2, signal peptide 1, chain 1, domain 1, region of interest 1, compositionally biased region 1

Structure

Experimental structures (PDB)

0 structures.

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-P55001-F169.040.38

Functional residue map

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

Post-translational modifications (4): 18, 47, 48, 50

Disulfide bonds (3): 160–176, 169–180, 153–183

Function

Pathways and Gene Ontology

Reactome pathways

3 pathways

IDPathway
R-HSA-1566948Elastic fibre formation
R-HSA-2129379Molecules associated with elastic fibres
R-HSA-1474244Extracellular matrix organization

MSigDB gene sets: 177 (showing top): GOBP_MYELOID_CELL_DIFFERENTIATION, GSE18804_SPLEEN_MACROPHAGE_VS_COLON_TUMORAL_MACROPHAGE_UP, TGGTGCT_MIR29A_MIR29B_MIR29C, MODULE_52, DORN_ADENOVIRUS_INFECTION_12HR_UP, ZHAN_MULTIPLE_MYELOMA_MF_UP, MODULE_45, BILD_HRAS_ONCOGENIC_SIGNATURE, MODULE_118, GOBP_ANIMAL_ORGAN_MORPHOGENESIS, MYOD_01, GOBP_EMBRYONIC_ORGAN_MORPHOGENESIS, GOMF_EXTRACELLULAR_MATRIX_STRUCTURAL_CONSTITUENT, YANG_BREAST_CANCER_ESR1_DN, GOBP_PLATELET_MORPHOGENESIS

GO Biological Process (4): platelet formation (GO:0030220), embryonic eye morphogenesis (GO:0048048), post-embryonic eye morphogenesis (GO:0048050), positive regulation of cold-induced thermogenesis (GO:0120162)

GO Molecular Function (4): fibronectin binding (GO:0001968), fibrinogen binding (GO:0070051), extracellular matrix structural constituent (GO:0005201), 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 organization1
Elastic fibre formation1

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
eye morphogenesis2
myeloid cell differentiation1
platelet morphogenesis1
anatomical structure formation involved in morphogenesis1
embryonic organ morphogenesis1
positive regulation of multicellular organismal process1
cold-induced thermogenesis1
regulation of cold-induced thermogenesis1
protein binding1
protein-containing complex binding1
structural molecule activity1
extracellular matrix1
binding1
elastic fiber1
supramolecular fiber1
cellular anatomical structure1
external encapsulating structure1

Protein interactions and networks

STRING

804 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
MFAP2FBN1P35555993
MFAP2ELNP15502991
MFAP2DCNP07585953
MFAP2FBN2P35556948
MFAP2MFAP1P55081912
MFAP2MFAP3P55082889
MFAP2BGNP13247794
MFAP2LOXP28300769
MFAP2FBLN5Q9UBX5723
MFAP2MFAP5Q13361703
MFAP2LOXL1Q08397664
MFAP2LTBP2Q14767643
MFAP2FBLN1P23142634
MFAP2FBLN2P98095616
MFAP2FN1P02751611

IntAct

5 interactions, top by confidence:

ABTypeScore
HOXA1MFAP2psi-mi:“MI:0915”(physical association)0.560
DDX3Ypsi-mi:“MI:0914”(association)0.350
HOXA1MFAP2psi-mi:“MI:0915”(physical association)0.000

BioGRID (8): MFAP2 (Affinity Capture-MS), MFAP2 (Two-hybrid), BGN (Reconstituted Complex), MFAP2 (Reconstituted Complex), COL4A3 (Reconstituted Complex), MFAP2 (Affinity Capture-MS), MFAP2 (Proximity Label-MS), MFAP2 (Proximity Label-MS)

ESM2 similar proteins: A0A088MLT8, A0JPH4, A2A8U2, A2ATD1, A6QLD2, B1AKI9, B1AL88, B3KU38, O14525, O35757, O75129, P0DPB3, P0DPB4, P12755, P17863, P27424, P49140, P55001, P55002, P85299, P97953, Q3V1G4, Q58CS8, Q5EGE1, Q5QQ56, Q5QQ57, Q60698, Q61137, Q68BL8, Q6DVA0, Q6L8S8, Q6L9W6, Q6S5C2, Q6ZWB6, Q80U62, Q80Z10, Q812A5, Q86Y38, Q8CCS2, Q8JG33

Diamond homologs: P27424, P55001, P55002, Q13361, Q28022, Q9QZJ6

SIGNOR signaling

0 interactions.

Disease & clinical

Clinical variants and AI predictions

ClinVar

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

ClassificationCount (floor)
Pathogenic0
Likely pathogenic0
Uncertain significance23
Likely benign1
Benign0

Top pathogenic / likely-pathogenic (0)

SpliceAI

881 predictions. Top by Δscore:

VariantEffectΔscore
1:16975343:C:CCacceptor_gain1.0000
1:16975731:C:CCacceptor_gain1.0000
1:16976549:G:GCacceptor_gain1.0000
1:16976790:CACCT:Cacceptor_gain1.0000
1:16976795:C:CCacceptor_gain1.0000
1:16976802:C:CTacceptor_gain1.0000
1:16976802:C:Tacceptor_gain1.0000
1:16976803:A:Tacceptor_gain1.0000
1:16977108:CCGAT:Cdonor_gain1.0000
1:16978232:CTTA:Cdonor_loss1.0000
1:16978233:TTA:Tdonor_loss1.0000
1:16978234:TA:Tdonor_loss1.0000
1:16978235:A:ACdonor_gain1.0000
1:16978236:C:CCdonor_gain1.0000
1:16978236:CCAGG:Cdonor_gain1.0000
1:16975263:TCCTA:Tdonor_loss0.9900
1:16975264:CCTAC:Cdonor_loss0.9900
1:16975265:CTACC:Cdonor_loss0.9900
1:16975266:TACC:Tdonor_loss0.9900
1:16975267:A:Tdonor_loss0.9900
1:16975268:C:CAdonor_loss0.9900
1:16975341:GG:Gacceptor_gain0.9900
1:16975344:T:Cacceptor_loss0.9900
1:16975637:GCTCA:Gdonor_loss0.9900
1:16975639:TCACC:Tdonor_loss0.9900
1:16975641:A:Tdonor_loss0.9900
1:16975727:CAGT:Cacceptor_gain0.9900
1:16975729:GT:Gacceptor_gain0.9900
1:16975732:T:Gacceptor_loss0.9900
1:16976545:TC:Tacceptor_loss0.9900

AlphaMissense

1198 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
1:16975307:C:GC137S0.999
1:16975307:C:TC137Y0.999
1:16975308:A:TC137S0.999
1:16975014:C:GC153S0.998
1:16975015:A:GC153R0.998
1:16975015:A:TC153S0.998
1:16975292:C:GC142S0.998
1:16975293:A:TC142S0.998
1:16975306:A:CC137W0.998
1:16975308:A:GC137R0.998
1:16975705:G:CC104W0.998
1:16975706:C:GC104S0.998
1:16975706:C:TC104Y0.998
1:16975707:A:GC104R0.998
1:16975707:A:TC104S0.998
1:16975712:T:CY102C0.998
1:16975292:C:TC142Y0.997
1:16975293:A:GC142R0.997
1:16975301:C:GR139P0.997
1:16975307:C:AC137F0.997
1:16975700:C:GR106P0.997
1:16975013:A:CC153W0.996
1:16975014:C:TC153Y0.996
1:16975291:A:CC142W0.996
1:16975653:A:GC122R0.996
1:16975694:T:CY108C0.996
1:16975695:A:CY108D0.996
1:16975697:A:GL107P0.996
1:16975701:G:TR106S0.996
1:16975706:C:AC104F0.996

dbSNP variants (sampled 300 via entrez): RS1000041067 (1:16979759 C>G,T), RS1000159405 (1:16978992 T>C), RS1000317852 (1:16978799 A>C), RS1001165953 (1:16980849 C>T), RS1001446802 (1:16981203 G>A), RS1001548947 (1:16980147 T>A,G), RS1001896440 (1:16980928 T>G), RS1001982371 (1:16974305 C>T), RS1002063425 (1:16979891 C>A), RS1002248346 (1:16974974 G>A,T), RS1002482617 (1:16975601 C>G), RS1002664969 (1:16981313 G>T), RS1003517931 (1:16976203 G>A,C), RS1003642549 (1:16982147 A>C), RS1003673 (1:16978753 C>T)

Disease associations

OMIM: gene MIM:156790 | disease phenotypes:

GenCC curated gene-disease

Mondo (0):

Orphanet (0):

HPO phenotypes

0 total (0 of 0 shown, HPO-id order):

GWAS associations

65 associations (top):

StudyTraitp-value
GCST000817_113Height4.000000e-29
GCST001248_3Pulmonary function8.000000e-16
GCST001784_26Pulmonary function (smoking interaction)2.000000e-11
GCST001956_54Height5.000000e-15
GCST002647_5Height1.000000e-40
GCST002702_24Height2.000000e-25
GCST004063_107Waist circumference adjusted for body mass index3.000000e-08
GCST004063_135Waist circumference adjusted for body mass index9.000000e-12
GCST004063_95Waist circumference adjusted for body mass index4.000000e-16
GCST004185_47Lung function (FEV1/FVC)1.000000e-10
GCST004500_28Waist circumference adjusted for BMI (adjusted for smoking behaviour)3.000000e-16
GCST004500_77Waist circumference adjusted for BMI (adjusted for smoking behaviour)1.000000e-11
GCST004500_92Waist circumference adjusted for BMI (adjusted for smoking behaviour)5.000000e-08
GCST004501_112Waist circumference adjusted for BMI (joint analysis main effects and smoking interaction)3.000000e-19
GCST004501_113Waist circumference adjusted for BMI (joint analysis main effects and smoking interaction)2.000000e-12
GCST004501_114Waist circumference adjusted for BMI (joint analysis main effects and smoking interaction)1.000000e-08
GCST004503_7Waist circumference adjusted for BMI in smokers1.000000e-09
GCST004504_83Waist circumference adjusted for BMI in non-smokers3.000000e-09
GCST004504_84Waist circumference adjusted for BMI in non-smokers4.000000e-12
GCST004562_117Waist circumference adjusted for body mass index7.000000e-14
GCST004562_160Waist circumference adjusted for body mass index4.000000e-10
GCST004562_253Waist circumference adjusted for body mass index8.000000e-13
GCST004562_6Waist circumference adjusted for body mass index3.000000e-11
GCST004562_65Waist circumference adjusted for body mass index7.000000e-10
GCST004563_142Waist circumference adjusted for BMI (joint analysis main effects and physical activity interaction)1.000000e-11
GCST004563_154Waist circumference adjusted for BMI (joint analysis main effects and physical activity interaction)6.000000e-06
GCST004563_214Waist circumference adjusted for BMI (joint analysis main effects and physical activity interaction)2.000000e-13
GCST004563_37Waist circumference adjusted for BMI (joint analysis main effects and physical activity interaction)2.000000e-10
GCST004563_53Waist circumference adjusted for BMI (joint analysis main effects and physical activity interaction)3.000000e-14
GCST004564_15Waist circumference adjusted for BMI in active individuals4.000000e-10

EFO canonical traits (13, from GWAS)

EFO IDTrait name
EFO:0003892pulmonary function measurement
EFO:0004713FEV/FVC ratio
EFO:0007789BMI-adjusted waist circumference
EFO:0004318smoking behavior
EFO:0008002physical activity measurement
EFO:0004341body fat distribution
EFO:0004312vital capacity
EFO:0009718peak expiratory flow
EFO:0004346neuroimaging measurement
EFO:0004840cortical thickness
EFO:0008039BMI-adjusted hip circumference
EFO:0004980appendicular lean mass
EFO:0007788BMI-adjusted waist-hip ratio

Drugs & pharmacology

Drug and pharmacology data

Is drug target: no

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

CTD chemical–gene interactions

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

ChemicalActions (top 5)PubMed papers
Valproic Acidaffects expression, increases expression, increases methylation4
bisphenol Adecreases expression, decreases methylation, increases expression3
Estradiolaffects cotreatment, increases expression, decreases expression3
(+)-JQ1 compounddecreases expression2
Isotretinoindecreases expression, increases expression2
Particulate Matterdecreases expression, increases abundance, increases expression2
bisphenol Fincreases expression1
4-oxoretinoic aciddecreases expression1
titanium dioxideaffects binding, increases expression1
beta-lapachonedecreases expression1
arsenitedecreases expression, increases methylation1
sulforaphanedecreases expression1
tris(1,3-dichloro-2-propyl)phosphatedecreases expression1
sodium arseniteincreases expression1
benzo(e)pyreneincreases methylation1
perfluorooctane sulfonic acidincreases expression1
4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamideaffects cotreatment, increases expression1
bisphenol Bincreases expression1
LDN 193189affects cotreatment, increases expression1
NSC 689534affects binding, increases expression1
bisphenol AFincreases expression1
Resveratrolaffects cotreatment, decreases expression1
Temozolomidedecreases expression1
Decitabineaffects expression1
Sunitinibincreases expression1
Alitretinoindecreases expression1
Acetaminophenincreases expression1
Air Pollutantsdecreases expression, increases abundance1
Arsenicdecreases methylation1
Vehicle Emissionsincreases abundance, increases expression1

Clinical trials (associated diseases)

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

No linked Atlas pages yet — the cross-entity mesh grows as the corpus expands.