BMP8A

gene
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Also known as OP-2Op2

Summary

BMP8A (bone morphogenetic protein 8a, HGNC:21650) is a protein-coding gene on chromosome 1p34.3, encoding Bone morphogenetic protein 8A (Q7Z5Y6). Induces cartilage and bone formation.

This gene encodes a secreted ligand of the TGF-beta (transforming growth factor-beta) superfamily of proteins. Ligands of this family bind various TGF-beta receptors leading to recruitment and activation of SMAD family transcription factors that regulate gene expression. The encoded preproprotein is proteolytically processed to generate each subunit of the disulfide-linked homodimer. This protein may play a role in development of the reproductive system. This gene may have arose from a gene duplication event and its gene duplicate is also present on chromosome 1.

Source: NCBI Gene 353500 — RefSeq curated summary.

At a glance

  • GWAS associations: 15
  • Clinical variants (ClinVar): 88 total — 1 pathogenic
  • MANE Select transcript: NM_181809

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:21650
Approved symbolBMP8A
Namebone morphogenetic protein 8a
Location1p34.3
Locus typegene with protein product
StatusApproved
AliasesOP-2, Op2
Ensembl geneENSG00000183682
Ensembl biotypeprotein_coding
OMIM620847
Entrez353500

Gene structure

Transcript identifiers

Ensembl transcripts: 2 — 2 protein_coding

ENST00000331593, ENST00000970787

RefSeq mRNA: 1 — MANE Select: NM_181809 NM_181809

CCDS: CCDS437

Canonical transcript exons

ENST00000331593 — 7 exons

ExonStartEnd
ENSE000013362393952564939529869
ENSE000013844753949163639492325
ENSE000016079873951175639511904
ENSE000016483333952240339522482
ENSE000016633453952300739523117
ENSE000017063803952137639521570
ENSE000017209833951117439511363

Expression profiles

Bgee: expression breadth ubiquitous, 166 present calls, max score 91.73.

FANTOM5 (CAGE): breadth broad, TPM avg 0.8574 / max 108.5483, expressed in 304 samples.

FANTOM5 promoters (2 alternative TSS)

Promoter IDTPM avgSamples expressed
23180.8086283
2014770.048818

Top tissues by expression

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

TissueAnatomy IDExpression scoreQuality
right lobe of thyroid glandUBERON:000111991.73gold quality
left lobe of thyroid glandUBERON:000112090.48gold quality
thyroid glandUBERON:000204689.88gold quality
periodontal ligamentUBERON:000826687.36gold quality
tibiaUBERON:000097980.40gold quality
C1 segment of cervical spinal cordUBERON:000646979.99gold quality
spinal cordUBERON:000224078.96gold quality
left ovaryUBERON:000211976.00gold quality
olfactory bulbUBERON:000226475.95gold quality
right ovaryUBERON:000211875.55gold quality
type B pancreatic cellCL:000016975.13gold quality
germinal epithelium of ovaryUBERON:000130474.81gold quality
islet of LangerhansUBERON:000000674.69gold quality
smooth muscle tissueUBERON:000113573.78gold quality
tibial nerveUBERON:000132373.69gold quality
male germ line stem cell (sensu Vertebrata) in testisCL:0000089 ∩ UBERON:000047373.40silver quality
right uterine tubeUBERON:000130272.94gold quality
right frontal lobeUBERON:000281072.55gold quality
ovaryUBERON:000099272.44gold quality
prefrontal cortexUBERON:000045171.58gold quality
pancreasUBERON:000126471.43gold quality
Brodmann (1909) area 46UBERON:000648370.77gold quality
thymusUBERON:000237070.71silver quality
body of pancreasUBERON:000115070.60gold quality
left uterine tubeUBERON:000130370.24gold quality
frontal cortexUBERON:000187070.20gold quality
substantia nigraUBERON:000203870.15gold quality
cingulate cortexUBERON:000302770.15gold quality
anterior cingulate cortexUBERON:000983570.12gold quality
midbrainUBERON:000189170.01gold quality

Single-cell (SCXA)

Detected in 2 experiment(s), a significant marker in 1.

ExperimentMarker?Max mean expression
E-ANND-3yes4.58
E-CURD-11no110.31

Regulation

Is transcription factor: no

miRNA regulators (miRDB)

124 targeting BMP8A, 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-4533100.0069.482758
HSA-MIR-340-5P100.0072.504437
HSA-MIR-1252-5P100.0069.802774
HSA-MIR-428299.9975.366408
HSA-MIR-314899.9775.066478
HSA-MIR-6793-5P99.9765.95758
HSA-MIR-493-5P99.9672.472382
HSA-MIR-6721-5P99.9368.922981
HSA-MIR-130599.9171.433443
HSA-MIR-6780A-5P99.8866.692776
HSA-MIR-30A-3P99.8769.742928
HSA-MIR-30D-3P99.8769.922917
HSA-MIR-30E-3P99.8769.682942
HSA-MIR-4728-5P99.8569.394718
HSA-MIR-6785-5P99.8268.684428
HSA-MIR-430799.8270.453374
HSA-MIR-6739-5P99.8067.872806
HSA-MIR-129999.7771.242389
HSA-MIR-1273H-5P99.7766.322471
HSA-MIR-467999.7669.191229
HSA-MIR-6764-5P99.7567.892304
HSA-MIR-6733-5P99.7467.942759
HSA-MIR-148B-3P99.7473.751700
HSA-MIR-149-3P99.7268.223963
HSA-MIR-6779-5P99.7065.762363
HSA-MIR-30B-3P99.7065.762325
HSA-MIR-3689A-3P99.7065.732306
HSA-MIR-3689B-3P99.7065.712311
HSA-MIR-3689C99.7065.712311
HSA-MIR-6883-5P99.6968.053785

Literature-anchored findings (GeneRIF, showing 6)

  • Authors found that Bmp8a, but not Bmp8b, was expressed predominantly in the neonatal mouse spermatogonia. Although most BMPs induce activation of SMADs 1, 5, and 8 (SMAD1/5/8), but not SMADs 2 and 3 (SMAD2/3), they found that BMP8A induced signaling through both sets of transcription factors. (PMID:28465413)
  • Serous BMP8A has Clinical Significance in the Ultrasonic Diagnosis of Thyroid Cancer and Promotes Thyroid Cancer Cell Progression. (PMID:31656161)
  • Human BMP8A suppresses luteinization of rat granulosa cells via the SMAD1/5/8 pathway. (PMID:31940275)
  • Bone morphogenetic protein 8A (BMP8) is highly expressed in clear cell renal cell carcinoma (ccRCC) suggesting a poor prognosis of ccRCC. BMP8 activates Nrf2 regulated reactive oxygen balance, and by regulating the transcription level of TRIM24, it is involved in the regulation of the Wnt pathway to promote the proliferation, invasion and metastasis of ccRCC and the resistance of As2O3. (PMID:32128917)
  • Human bone morphogenetic protein 8A promotes expansion and prevents apoptosis of cumulus cells in vitro. (PMID:33338549)
  • Recent progress in the biology and physiology of BMP-8a. (PMID:36594156)

Cross-species orthologs

1 orthologs

OrganismSymbolGene ID
danio_reriobmp8aENSDARG00000035677

Paralogs (31): TGFB2 (ENSG00000092969), BMP7 (ENSG00000101144), TGFB1 (ENSG00000105329), BMP5 (ENSG00000112175), BMP8B (ENSG00000116985), TGFB3 (ENSG00000119699), INHBA (ENSG00000122641), INHA (ENSG00000123999), BMP4 (ENSG00000125378), BMP2 (ENSG00000125845), GDF5 (ENSG00000125965), GDF1 (ENSG00000130283), BMP15 (ENSG00000130385), GDF15 (ENSG00000130513), GDF11 (ENSG00000135414), MSTN (ENSG00000138379), INHBE (ENSG00000139269), LEFTY2 (ENSG00000143768), GDF7 (ENSG00000143869), BMP3 (ENSG00000152785), BMP6 (ENSG00000153162), GDF6 (ENSG00000156466), NODAL (ENSG00000156574), INHBB (ENSG00000163083), BMP10 (ENSG00000163217), GDF9 (ENSG00000164404), INHBC (ENSG00000175189), GDF3 (ENSG00000184344), LEFTY1 (ENSG00000243709), GDF2 (ENSG00000263761), GDF10 (ENSG00000266524)

Protein

Protein identifiers

Bone morphogenetic protein 8AQ7Z5Y6 (reviewed: Q7Z5Y6)

All UniProt accessions (1): Q7Z5Y6

UniProt curated annotations — full annotation on UniProt →

Function. Induces cartilage and bone formation. May be the osteoinductive factor responsible for the phenomenon of epithelial osteogenesis. Plays a role in calcium regulation and bone homeostasis. Signaling protein involved in regulation of thermogenesis and energy balance. Proposed to increase the peripheral response of brown adipose tissue (BAT) to adrenergic stimulation while acting centrally in the hypothalamus to increase sympathetic output to BAT. Growth factor of the TGF-beta superfamily that plays important role in various biological processes, including spermatogenesis, osteogenesis, steroidogenesis as well as regulation of energy balance. Initiates the canonical BMP signaling cascade by associating with type I receptor BMPR1A and type II receptor BMPR2. Once all three components are bound together in a complex at the cell surface, BMPR2 phosphorylates and activates BMPR1A. In turn, BMPR1A propagates signal by phosphorylating SMAD1/5/8 that travel to the nucleus and act as activators and repressors of transcription of target genes. In addition, activates the SMAD2/3 pathway.

Subunit / interactions. Homodimer; disulfide-linked.

Subcellular location. Secreted.

Similarity. Belongs to the TGF-beta family.

RefSeq proteins (1): NP_861525* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR001111TGF-b_propeptideDomain
IPR001839TGF-b_CDomain
IPR015615TGF-beta-likeFamily
IPR017948TGFb_CSConserved_site
IPR029034Cystine-knot_cytokineHomologous_superfamily

Pfam: PF00019, PF00688

UniProt features (11 total): disulfide bond 4, sequence variant 2, glycosylation site 2, signal peptide 1, propeptide 1, chain 1

Structure

Experimental structures (PDB)

0 structures.

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-Q7Z5Y6-F176.870.43

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 (4): 301–367, 330–399, 334–401, 366

Glycosylation sites (2): 158, 343

Function

Pathways and Gene Ontology

Reactome pathways

0 pathways

MSigDB gene sets: 119 (showing top): GSE45365_CD8A_DC_VS_CD11B_DC_IFNAR_KO_DN, GSE45365_NK_CELL_VS_CD8A_DC_DN, BYSTRYKH_HEMATOPOIESIS_STEM_CELL_FGF3, BENPORATH_ES_WITH_H3K27ME3, CHIARADONNA_NEOPLASTIC_TRANSFORMATION_KRAS_DN, GOBP_CARTILAGE_DEVELOPMENT, KEGG_HEDGEHOG_SIGNALING_PATHWAY, GOBP_SKELETAL_SYSTEM_DEVELOPMENT, GOBP_RESPONSE_TO_DIETARY_EXCESS, GOBP_INSULIN_SECRETION, GOBP_REGULATION_OF_HORMONE_LEVELS, GOBP_NEGATIVE_REGULATION_OF_PEPTIDE_SECRETION, GOBP_HORMONE_TRANSPORT, GOMF_GROWTH_FACTOR_ACTIVITY, GOBP_NEGATIVE_REGULATION_OF_PROTEIN_LOCALIZATION

GO Biological Process (8): ossification (GO:0001503), diet induced thermogenesis (GO:0002024), cell differentiation (GO:0030154), BMP signaling pathway (GO:0030509), negative regulation of insulin secretion (GO:0046676), cartilage development (GO:0051216), energy homeostasis (GO:0097009), developmental process (GO:0032502)

GO Molecular Function (2): cytokine activity (GO:0005125), growth factor activity (GO:0008083)

GO Cellular Component (2): obsolete extracellular space (GO:0005615), extracellular region (GO:0005576)

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
receptor ligand activity2
multicellular organismal process1
response to dietary excess1
adaptive thermogenesis1
cellular developmental process1
cellular response to BMP stimulus1
transforming growth factor beta receptor superfamily signaling pathway1
insulin secretion1
negative regulation of protein secretion1
regulation of insulin secretion1
negative regulation of peptide hormone secretion1
skeletal system development1
animal organ development1
connective tissue development1
multicellular organismal-level homeostasis1
biological_process1
cellular anatomical structure1

Protein interactions and networks

STRING

546 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
BMP8ABMP7P18075882
BMP8ABMPR2Q13873718
BMP8ABMPR1BP78366609
BMP8AACVR1Q04771601
BMP8AACVR2AP27037581
BMP8ACDS1Q92903571
BMP8AATP10AO60312566
BMP8AMAGEL2Q9UJ55548
BMP8AMKRN3Q13064544
BMP8AACVR2BQ13705536
BMP8AHTR2CP28335497
BMP8ASCG2P13521497
BMP8ANDNQ99608490
BMP8AOCA2Q04671456
BMP8ASNRPNP14648440

IntAct

21 interactions, top by confidence:

ABTypeScore
Dlg4BMP8Apsi-mi:“MI:0407”(direct interaction)0.440
CANXHLA-Apsi-mi:“MI:0914”(association)0.350
PI15GLSpsi-mi:“MI:0914”(association)0.350
LY86TMEM131Lpsi-mi:“MI:0914”(association)0.350
TMEM87APOTEFpsi-mi:“MI:0914”(association)0.350
CFC1POTEFpsi-mi:“MI:0914”(association)0.350
PI15psi-mi:“MI:0914”(association)0.350
GPIHBP1SAC3D1psi-mi:“MI:0914”(association)0.350
PDGFRAQSOX1psi-mi:“MI:0914”(association)0.350
PRG2QSOX1psi-mi:“MI:0914”(association)0.350
SDF2L1MANBApsi-mi:“MI:0914”(association)0.350
C1QBMANBApsi-mi:“MI:0914”(association)0.350
TRGV3MANBApsi-mi:“MI:0914”(association)0.350
GGHMANBApsi-mi:“MI:0914”(association)0.350
LYZL1MAN2B1psi-mi:“MI:0914”(association)0.350
SLURP1MAN2B1psi-mi:“MI:0914”(association)0.350
NXPH3ACACBpsi-mi:“MI:0914”(association)0.350
TAFAZZINBCKDKpsi-mi:“MI:0914”(association)0.350
BRINP1HSPA5psi-mi:“MI:0914”(association)0.350
GPC3PXDNLpsi-mi:“MI:0914”(association)0.350

BioGRID (19): BMP8A (Affinity Capture-RNA), BMP8A (Affinity Capture-MS), BMP8A (Affinity Capture-MS), BMP8A (Affinity Capture-MS), BMP8A (Affinity Capture-MS), BMP8A (Affinity Capture-MS), BMP8A (Affinity Capture-MS), BMP8A (Affinity Capture-MS), BMP8A (Affinity Capture-MS), BMP8A (Affinity Capture-MS), BMP8A (Affinity Capture-MS), BMP8A (Affinity Capture-MS), BMP8A (Affinity Capture-MS), BMP8A (Affinity Capture-MS), BMP8A (Affinity Capture-MS)

ESM2 similar proteins: A2AJ76, A8T644, A8T650, A8T655, A8T658, A8T662, A8T666, A8T672, A8T677, A8T682, A8T688, A8T695, A8T6A1, A8T6A6, D3Z7H8, O75173, O95450, O95479, P04088, P21709, P29121, P34820, P34821, P55103, P55104, P56201, P59996, P79331, Q0V8J4, Q13219, Q16549, Q5RFQ8, Q60750, Q61139, Q62849, Q6UW60, Q78EH2, Q7Z5Y6, Q80W65, Q8BNJ2

Diamond homologs: A8E7N9, G5EEL5, O08717, O18828, O18830, O19006, O42222, O46564, O46576, O88959, O95390, O95393, O95972, P03970, P07713, P07995, P08476, P09534, P12643, P12644, P12645, P18075, P18331, P20722, P20863, P21274, P21275, P22003, P22004, P22444, P23359, P25703, P27092, P27539, P30884, P30885, P30886, P34820, P34821, P34822

SIGNOR signaling

0 interactions.

Disease & clinical

Clinical variants and AI predictions

ClinVar

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

ClassificationCount (floor)
Pathogenic1
Likely pathogenic0
Uncertain significance72
Likely benign8
Benign1

Top pathogenic / likely-pathogenic (1)

Variant IDHGVSClassification
58072GRCh38/hg38 1p34.3-34.2(chr1:39360747-40900817)x3Pathogenic

SpliceAI

2283 predictions. Top by Δscore:

VariantEffectΔscore
1:39492324:GG:Gdonor_gain1.0000
1:39492325:GG:Gdonor_gain1.0000
1:39492326:G:GGdonor_gain1.0000
1:39511785:A:AGacceptor_gain1.0000
1:39511786:G:GGacceptor_gain1.0000
1:39511786:GAC:Gacceptor_gain1.0000
1:39511900:GGACG:Gdonor_gain1.0000
1:39511901:G:GTdonor_gain1.0000
1:39511906:T:Adonor_loss1.0000
1:39522398:TGCAG:Tacceptor_loss1.0000
1:39522400:CAGAT:Cacceptor_loss1.0000
1:39522401:A:AGacceptor_gain1.0000
1:39522401:A:Tacceptor_loss1.0000
1:39522402:G:GGacceptor_gain1.0000
1:39522402:GAT:Gacceptor_gain1.0000
1:39523003:CCAG:Cacceptor_loss1.0000
1:39523004:CAGG:Cacceptor_loss1.0000
1:39523005:A:AGacceptor_gain1.0000
1:39523005:A:Cacceptor_loss1.0000
1:39523005:AG:Aacceptor_gain1.0000
1:39523006:G:GGacceptor_gain1.0000
1:39523006:GG:Gacceptor_gain1.0000
1:39523006:GGA:Gacceptor_gain1.0000
1:39523006:GGAC:Gacceptor_gain1.0000
1:39523006:GGACT:Gacceptor_gain1.0000
1:39523115:CTGGT:Cdonor_loss1.0000
1:39523116:TGGT:Tdonor_loss1.0000
1:39523118:G:GAdonor_loss1.0000
1:39523118:G:GGdonor_gain1.0000
1:39523121:A:AGdonor_gain1.0000

AlphaMissense

2601 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
1:39522463:T:GF310C0.999
1:39523047:G:AC330Y0.999
1:39523092:C:TT345I0.999
1:39522462:T:CF310L0.998
1:39522464:C:AF310L0.998
1:39522464:C:GF310L0.998
1:39523046:T:AC330S0.998
1:39523047:G:CC330S0.998
1:39523047:G:TC330F0.998
1:39523048:T:GC330W0.998
1:39522435:T:AC301S0.997
1:39522436:G:CC301S0.997
1:39522457:T:AV308D0.997
1:39523052:G:TG332W0.997
1:39523058:T:AC334S0.997
1:39523059:G:CC334S0.997
1:39525689:G:AC367Y0.997
1:39525785:G:AC399Y0.997
1:39522463:T:CF310S0.996
1:39523052:G:AG332R0.996
1:39523052:G:CG332R0.996
1:39523053:G:TG332V0.996
1:39523058:T:CC334R0.996
1:39523064:T:CF336L0.996
1:39523065:T:GF336C0.996
1:39523066:C:AF336L0.996
1:39523066:C:GF336L0.996
1:39525688:T:AC367S0.996
1:39525689:G:CC367S0.996
1:39525790:T:AC401S0.996

dbSNP variants (sampled 300 via entrez): RS1000018830 (1:39528098 T>C,G), RS1000230286 (1:39523285 G>GGT), RS1000240726 (1:39499156 C>T), RS1000283572 (1:39503010 C>T), RS1000305093 (1:39492570 C>A,T), RS1000383973 (1:39502778 T>A), RS1000616159 (1:39501412 T>C), RS1000658300 (1:39526511 G>A), RS1000668441 (1:39501071 G>A,C,T), RS1000828903 (1:39509853 G>A), RS1000832613 (1:39520646 T>C), RS1000870005 (1:39507696 G>A,C,T), RS1000928357 (1:39510094 C>T), RS1001002935 (1:39526749 T>A), RS1001024177 (1:39529580 A>T)

Disease associations

OMIM: gene MIM:620847 | disease phenotypes:

GenCC curated gene-disease

Mondo (0):

Orphanet (0):

HPO phenotypes

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

GWAS associations

15 associations (top):

StudyTraitp-value
GCST004482_15Peripheral arterial disease (traffic-related air pollution interaction)2.000000e-08
GCST004482_9Peripheral arterial disease (traffic-related air pollution interaction)7.000000e-06
GCST006804_41Red cell distribution width4.000000e-14
GCST007611_13Chronic obstructive pulmonary disease or high blood pressure (pleiotropy)7.000000e-09
GCST007656_12Chronic obstructive pulmonary disease or resting heart rate (pleiotropy)3.000000e-11
GCST009305_5California verbal learning test score5.000000e-06
GCST010696_14Cortical thickness (min-P)9.000000e-12
GCST010697_24Cortical surface area (min-P)2.000000e-08
GCST010698_13Subcortical volume (min-P)7.000000e-09
GCST010699_109Brain morphology (min-P)4.000000e-08
GCST010700_59Cortical thickness (MOSTest)8.000000e-10
GCST010701_84Cortical surface area (MOSTest)6.000000e-09
GCST010702_174Subcortical volume (MOSTest)7.000000e-16
GCST010703_193Brain morphology (MOSTest)9.000000e-11
GCST90011900_38Serum alkaline phosphatase levels1.000000e-15

EFO canonical traits (6, from GWAS)

EFO IDTrait name
EFO:0007908traffic air pollution measurement
EFO:0009188Red cell distribution width
EFO:0004874memory performance
EFO:0004346neuroimaging measurement
EFO:0004840cortical thickness
EFO:0004533alkaline phosphatase measurement

Drugs & pharmacology

Drug and pharmacology data

Is drug target: no

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

CTD chemical–gene interactions

18 total (human), top 18 by PubMed support.

ChemicalActions (top 5)PubMed papers
Benzo(a)pyreneincreases methylation, decreases expression2
aristolochic acid Iincreases expression1
propionaldehydeincreases expression1
bisphenol Aincreases expression1
S-(1,2-dichlorovinyl)cysteineincreases expression, affects response to substance1
di-n-butylphosphoric acidaffects expression1
monomethylarsonous acidincreases expression1
Irinotecanincreases expression1
Air Pollutantsincreases response to substance1
Arsenicaffects methylation1
Atrazineincreases expression1
Vehicle Emissionsincreases response to substance1
Estradiolaffects cotreatment, increases expression1
Lipopolysaccharidesaffects response to substance, increases expression1
Quercetinincreases expression1
Smokedecreases expression1
Tetrachlorodibenzodioxindecreases expression1
Urethaneincreases expression1

Clinical trials (associated diseases)

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

  • Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): peripheral arterial disease