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Gene Gene information from NCBI Gene database.
Entrez ID 3674
Gene name Integrin subunit alpha 2b
Gene symbol ITGA2B
Synonyms (NCBI Gene)
BDPLT16BDPLT2CD41CD41BFMAIT2GP2BGPIIbGTGT1GTAHPA3PPP1R93
Chromosome 17
Chromosome location 17q21.31
Summary This gene encodes a member of the integrin alpha chain family of proteins. The encoded preproprotein is proteolytically processed to generate light and heavy chains that associate through disulfide linkages to form a subunit of the alpha-IIb/beta-3 integr
SNPs SNP information provided by dbSNP.
36 Show/Hide all (36)
SNP ID Visualize variation Clinical significance Consequence
rs74475415 T>G Likely-pathogenic Missense variant, coding sequence variant
rs76066357 G>C Pathogenic, benign Missense variant, coding sequence variant
rs76811038 A>G,T Pathogenic Missense variant, coding sequence variant
rs78657866 C>T Likely-pathogenic Intron variant, missense variant, coding sequence variant
rs80002943 G>A Pathogenic Intron variant, missense variant, coding sequence variant
Transcription factors Transcription factors information provided by TRRUST V2 database.
5
Transcription factor Regulation Reference
FLI1 Unknown 15466856
GATA1 Unknown 8408012
RUNX1 Activation 12576332;17725493;18316480
SPI1 Unknown 9305885
STAT6 Unknown 20652946
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
32 Show/Hide all (32)
GO ID Ontology Definition Evidence Reference
GO:0001525 Process Angiogenesis IBA
GO:0002687 Process Positive regulation of leukocyte migration IEA
GO:0005515 Function Protein binding IPI 14681217, 15378069, 19279667, 19805198, 22178926, 22779914, 25849143, 30305279, 37184585
GO:0005886 Component Plasma membrane IDA
GO:0005886 Component Plasma membrane TAS
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
607759 6138 ENSG00000005961
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
P08514
Protein name Integrin alpha-IIb (GPalpha IIb) (GPIIb) (Platelet membrane glycoprotein IIb) (CD antigen CD41) [Cleaved into: Integrin alpha-IIb heavy chain; Integrin alpha-IIb light chain, form 1; Integrin alpha-IIb light chain, form 2]
Protein function Integrin alpha-IIb/beta-3 is a receptor for fibronectin, fibrinogen, plasminogen, prothrombin, thrombospondin and vitronectin. It recognizes the sequence R-G-D in a wide array of ligands. It recognizes the sequence H-H-L-G-G-G-A-K-Q-A-G-D-V in f
PDB 1DPK , 1DPQ , 1KUP , 1KUZ , 1M8O , 1S4W , 1TYE , 2K1A , 2K9J , 2KNC , 2MTP , 2N9Y , 2VC2 , 2VDK , 2VDL , 2VDM , 2VDN , 2VDO , 2VDP , 2VDQ , 2VDR , 3FCS , 3FCU , 3NID , 3NIF , 3NIG , 3T3M , 3T3P , 3ZDX , 3ZDY , 3ZDZ , 3ZE0 , 3ZE1 , 3ZE2 , 4CAK , 4Z7N , 4Z7O , 4Z7Q , 5HDB , 6V4P , 7KN0 , 7L8P , 7LA4 , 7SC4 , 7SFT , 7TCT , 7TD8 , 7THO , 7TMZ , 7TPD , 7U60
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF00357 Integrin_alpha 1020 → 1034 Integrin alpha cytoplasmic region Family
PF01839 FG-GAP 320 → 362 FG-GAP repeat Repeat
PF01839 FG-GAP 387 → 423 FG-GAP repeat Repeat
PF08441 Integrin_alpha2 481 → 921 Integrin alpha Family
Tissue specificity TISSUE SPECIFICITY: Isoform 1 and isoform 2 are expressed in platelets and megakaryocytes, but not in reticulocytes. Not detected in Jurkat, nor in U937 cell lines (PubMed:2351656). Isoform 3 is expressed in prostate adenocarcinoma, as well as in several
Sequence
MARALCPLQALWLLEWVLLLLGPCAAPPAWALNLDPVQLTFYAGPNGSQFGFSLDFHKDS
HGRVAIVVGAPRTLGPSQEETGGVFLCPWRAEGGQCPSLLFDLRDETRNVGSQTLQTFKA
RQGLGASVVSWSDVIVACAPWQHWNVLEKTEEAEKTPVGSCFLAQPESGRRAEYSPCRGN
TLSRIYVENDFSWDKRYCEAGFSSVVTQAGELVLGAPGGYYFLGLLAQAPVADIFSSYRP
GILLWHVSSQSLSFDSSNPEYFDGYWGYSVAVGEFDGDLNTTEYVVGAPTWSWTLGAVEI
LDSYYQRLHRLRGEQMASYFGHSVAVTDVNGDGRHDLLVGAPLYMESRADRKLAEVGRVY
LF
LQPRGPHALGAPSLLLTGTQLYGRFGSAIAPLGDLDRDGYNDIAVAAPYGGPSGRGQV
LVF
LGQSEGLRSRPSQVLDSPFPTGSAFGFSLRGAVDIDDNGYPDLIVGAYGANQVAVYR
AQPVVKASVQLLVQDSLNPAVKSCVLPQTKTPVSCFNIQMCVGATGHNIPQKLSLNAELQ
LDRQKPRQGRRVLLLGSQQAGTTLNLDLGGKHSPICHTTMAFLRDEADFRDKLSPIVLSL
NVSLPPTEAGMAPAVVLHGDTHVQEQTRIVLDCGEDDVCVPQLQLTASVTGSPLLVGADN
VLELQMDAANEGEGAYEAELAVHLPQGAHYMRALSNVEGFERLICNQKKENETRVVLCEL
GNPMKKNAQIGIAMLVSVGNLEEAGESVSFQLQIRSKNSQNPNSKIVLLDVPVRAEAQVE
LRGNSFPASLVVAAEEGEREQNSLDSWGPKVEHTYELHNNGPGTVNGLHLSIHLPGQSQP
SDLLYILDIQPQGGLQCFPQPPVNPLKVDWGLPIPSPSPIHPAHHKRDRRQIFLPEPEQP
SRLQDPVLVSCDSAPCTVVQC
DLQEMARGQRAMVTVLAFLWLPSLYQRPLDQFVLQSHAW
FNVSSLPYAVPPLSLPRGEAQVWTQLLRALEERAIPIWWVLVGVLGGLLLLTILVLAMWK
VGFFKRNRPPLEED
DEEGE
Sequence length 1039
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
KEGG Pathway Reactome Pathway
Rap1 signaling pathway Platelet degranulation
PI3K-Akt signaling pathway Integrin cell surface interactions
Focal adhesion ECM proteoglycans
ECM-receptor interaction Integrin signaling
Platelet activation GRB2:SOS provides linkage to MAPK signaling for Integrins
Neutrophil extracellular trap formation p130Cas linkage to MAPK signaling for integrins
Hematopoietic cell lineage Signal transduction by L1
Regulation of actin cytoskeleton MAP2K and MAPK activation
Cytoskeleton in muscle cells Signaling by moderate kinase activity BRAF mutants
Human papillomavirus infection Signaling by high-kinase activity BRAF mutants
Pathways in cancer Signaling by BRAF and RAF fusions
Small cell lung cancer Paradoxical activation of RAF signaling by kinase inactive BRAF
Hypertrophic cardiomyopathy RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function
Arrhythmogenic right ventricular cardiomyopathy Signaling downstream of RAS mutants
Dilated cardiomyopathy  
Fluid shear stress and atherosclerosis  
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
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Evidence Score: ★☆☆☆☆  Gene-disease association found in Text Mining only ★★☆☆☆  Found in Text Mining and Unknown/Other Associations ★★★☆☆  Reported in Unknown/Other Associations across ≥2 Sources ★★★★☆  ClinVar: Pathogenic/Likely Pathogenic (<5 Variants) ★★★★★  ClinVar: Pathogenic/Likely Pathogenic (≥5 Variants)
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Show/Hide Causal Diseases (11)
Phenotype Name Clinical Significance dbSNP ID RCV Accession Evidence Score
Abnormal bleeding Pathogenic rs2048557402 RCV001270509
★★★★★
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Abnormal platelet aggregation Likely pathogenic rs1598378490 RCV000851728
★★★★★
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Abnormal platelet function Pathogenic rs74664206 RCV000852104
★★★★★
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Gastric cancer Likely pathogenic rs2048541187 RCV005909229
★★★★★
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Glanzmann thrombasthenia Likely pathogenic; Pathogenic rs2048619428, rs2143465205, rs483352692, rs2143429307, rs2143436505, rs2143438540, rs776442328, rs1245816431, rs2143450843, rs2143451028, rs2143459811, rs2143461728, rs779910477, rs2143465421, rs2143475577
View all (208 more)
RCV001332427
RCV001387239
RCV002510782
RCV001580216
RCV001580239
View all (220 more)
★★★★★
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Unknown / Other Associations ClinVar entries with uncertain/conflicting evidence, and associations from other databases (OMIM, Orphanet, GWAS, etc.) where the gene is not established as causal.
Show/Hide Unknown Diseases (27)
Phenotype Name Clinical Significance Source Reference Evidence Score
Acute myeloid leukemia Benign ClinVar —
★★★★★
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
ARTHRITIS, JUVENILE — CTD 19565504
★★★★★
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
AUTOSOMAL DOMINANT MACROTHROMBOCYTOPENIA — Disgenet 21454453, 21454453
★★★★★
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
BAK PLATELET-SPECIFIC ANTIGEN Benign ClinVar —
★★★★★
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
BLEEDING DISORDER, PLATELET-TYPE, 16 — Disgenet, HPO
Disgenet, HPO
—
★★★★★
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Associations from Text Mining Disease associations identified through text mining
Show/Hide Text Mining Associations (214)
Disease Name Disease (Merged) Source PMID Relationship Type Evidence Score
Acute Cerebrovascular Accidents Stroke BEFREE 31263257
★★★★★
★☆☆☆☆
Found in Text Mining only
Acute Cerebrovascular Accidents Stroke CTD_human_DG 9445356
★★★★★
★☆☆☆☆
Found in Text Mining only
Acute Coronary Syndrome Coronary Syndrome BEFREE 17561290, 23941967, 9241754, 9506596
★★★★★
★☆☆☆☆
Found in Text Mining only
Acute Erythroblastic Leukemia Erythroblastic Leukemia BEFREE 8289484, 8807083
★★★★★
★☆☆☆☆
Found in Text Mining only
Acute Megakaryocytic Leukemias Megakaryocytic Leukemia BEFREE 7536511, 8750618
★★★★★
★☆☆☆☆
Found in Text Mining only
Acute Undifferentiated Leukemia Leukemia BEFREE 14513050
★★★★★
★☆☆☆☆
Found in Text Mining only
Adult Oligodendroglioma Oligodendroglioma BEFREE 23996800
★★★★★
★☆☆☆☆
Found in Text Mining only
Alloimmunisation Alloimmunisation BEFREE 12964043, 29845661, 9684730
★★★★★
★☆☆☆☆
Found in Text Mining only
Androgen-Insensitivity Syndrome Androgen-Insensitivity Syndrome BEFREE 28301901
★★★★★
★☆☆☆☆
Found in Text Mining only
Anemia Anemia HPO_DG
★★★★★
★☆☆☆☆
Found in Text Mining only