Protein:ITGA2B |
Protein Summary |
Gene summary |
| Gene name: ITGA2B | ASpdb.0 ID: 3674 | Gene | Gene symbol | ITGA2B | Gene ID | 3674 |
| Gene name | integrin subunit alpha 2b |
| Synonyms | BDPLT16|BDPLT2|CD41|CD41B|GP2B|GPIIb|GT|GT1|GTA|HPA3|PPP1R93 |
| Cytomap | 17q21.31 |
| Type of gene | protein-coding |
| Description | integrin alpha-IIbGPalpha IIbalphaIIb proteinintegrin, alpha 2b (platelet glycoprotein IIb of IIb/IIIa complex, antigen CD41)platelet fibrinogen receptor, alpha subunitplatelet glycoprotein IIb of IIb/IIIa complexplatelet membrane glycoprotein IIbp |
| Modification date | 20240413 |
| UniProtAcc | P08514 |
Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez |
| Partner | Gene | GO ID | GO term | PubMed ID |
| Gene | ITGA2B | GO:0005886 | plasma membrane | - |
| Gene | ITGA2B | GO:0070062 | extracellular exosome | 15908444 |
AS Summary |
Information of the canonical protein with experimentally identified structure from PDB (2023). |
| UniProt Acc | File name | PDB ID | Method | Resolution | Chain | Start | End |
| P08514-1 | P08514-1_3fcs_A.pdb | 3FCS | X-ray | 2.55 | A | 32 | 989 |
ASpdb's canonical and alternatively spliced isoform information. |
| accession_id | gene_name | canonical_id | alternative_id | canonical_length | alternative_length | canonical_start | canonical_end | type | originalSEQ | variationSEQ | alternative_start | alternative_end |
| P08514 | ITGA2B | P08514-1 | P08514-2 | 1039 | 1005 | 948 | 981 | Deletion | none | none | 947 | 947 |
| P08514 | ITGA2B | P08514-1 | P08514-3 | 1039 | 953 | 910 | 1039 | Substitution | SCDSAPCTVVQCDLQEMARGQRAMVTVLAFLWLPSLYQRPLDQFVLQSHAWFNVSSLPYAVPPLSLPRGEAQVWTQLLRALEERAIPIWWVLVGVLGGLLLLTILVLAMWKVGFFKRNRPPLEEDDEEGE | VSRLSGLWPGLPGTHGAEGMGGGRGVRVCCGPLWATLGPWEHFK | 910 | 953 |
Multiple sequence alignment of our canonical and alternatively spliced ITGA2B |
Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of ITGA2B |
| UniProt-id | ENSG | ENST | ENSP |
| P08514-1 | ENSG00000005961.19 | ENST00000262407.6 | ENSP00000262407.5 |
| UniProt-id | NM ID | NP ID |
| P08514-1 | NM_000419.4 | NP_000410.2 |
Amino acid sequences of our canonical and alternatively spliced ITGA2B |
| accession_id | Protein sequence |
| P08514-1 | MARALCPLQALWLLEWVLLLLGPCAAPPAWALNLDPVQLTFYAGPNGSQFGFSLDFHKDSHGRVAIVVGAPRTLGPSQEETGGVFLCPWR AEGGQCPSLLFDLRDETRNVGSQTLQTFKARQGLGASVVSWSDVIVACAPWQHWNVLEKTEEAEKTPVGSCFLAQPESGRRAEYSPCRGN TLSRIYVENDFSWDKRYCEAGFSSVVTQAGELVLGAPGGYYFLGLLAQAPVADIFSSYRPGILLWHVSSQSLSFDSSNPEYFDGYWGYSV AVGEFDGDLNTTEYVVGAPTWSWTLGAVEILDSYYQRLHRLRGEQMASYFGHSVAVTDVNGDGRHDLLVGAPLYMESRADRKLAEVGRVY LFLQPRGPHALGAPSLLLTGTQLYGRFGSAIAPLGDLDRDGYNDIAVAAPYGGPSGRGQVLVFLGQSEGLRSRPSQVLDSPFPTGSAFGF SLRGAVDIDDNGYPDLIVGAYGANQVAVYRAQPVVKASVQLLVQDSLNPAVKSCVLPQTKTPVSCFNIQMCVGATGHNIPQKLSLNAELQ LDRQKPRQGRRVLLLGSQQAGTTLNLDLGGKHSPICHTTMAFLRDEADFRDKLSPIVLSLNVSLPPTEAGMAPAVVLHGDTHVQEQTRIV LDCGEDDVCVPQLQLTASVTGSPLLVGADNVLELQMDAANEGEGAYEAELAVHLPQGAHYMRALSNVEGFERLICNQKKENETRVVLCEL GNPMKKNAQIGIAMLVSVGNLEEAGESVSFQLQIRSKNSQNPNSKIVLLDVPVRAEAQVELRGNSFPASLVVAAEEGEREQNSLDSWGPK VEHTYELHNNGPGTVNGLHLSIHLPGQSQPSDLLYILDIQPQGGLQCFPQPPVNPLKVDWGLPIPSPSPIHPAHHKRDRRQIFLPEPEQP SRLQDPVLVSCDSAPCTVVQCDLQEMARGQRAMVTVLAFLWLPSLYQRPLDQFVLQSHAWFNVSSLPYAVPPLSLPRGEAQVWTQLLRAL |
| P08514-2 | MARALCPLQALWLLEWVLLLLGPCAAPPAWALNLDPVQLTFYAGPNGSQFGFSLDFHKDSHGRVAIVVGAPRTLGPSQEETGGVFLCPWR AEGGQCPSLLFDLRDETRNVGSQTLQTFKARQGLGASVVSWSDVIVACAPWQHWNVLEKTEEAEKTPVGSCFLAQPESGRRAEYSPCRGN TLSRIYVENDFSWDKRYCEAGFSSVVTQAGELVLGAPGGYYFLGLLAQAPVADIFSSYRPGILLWHVSSQSLSFDSSNPEYFDGYWGYSV AVGEFDGDLNTTEYVVGAPTWSWTLGAVEILDSYYQRLHRLRGEQMASYFGHSVAVTDVNGDGRHDLLVGAPLYMESRADRKLAEVGRVY LFLQPRGPHALGAPSLLLTGTQLYGRFGSAIAPLGDLDRDGYNDIAVAAPYGGPSGRGQVLVFLGQSEGLRSRPSQVLDSPFPTGSAFGF SLRGAVDIDDNGYPDLIVGAYGANQVAVYRAQPVVKASVQLLVQDSLNPAVKSCVLPQTKTPVSCFNIQMCVGATGHNIPQKLSLNAELQ LDRQKPRQGRRVLLLGSQQAGTTLNLDLGGKHSPICHTTMAFLRDEADFRDKLSPIVLSLNVSLPPTEAGMAPAVVLHGDTHVQEQTRIV LDCGEDDVCVPQLQLTASVTGSPLLVGADNVLELQMDAANEGEGAYEAELAVHLPQGAHYMRALSNVEGFERLICNQKKENETRVVLCEL GNPMKKNAQIGIAMLVSVGNLEEAGESVSFQLQIRSKNSQNPNSKIVLLDVPVRAEAQVELRGNSFPASLVVAAEEGEREQNSLDSWGPK VEHTYELHNNGPGTVNGLHLSIHLPGQSQPSDLLYILDIQPQGGLQCFPQPPVNPLKVDWGLPIPSPSPIHPAHHKRDRRQIFLPEPEQP SRLQDPVLVSCDSAPCTVVQCDLQEMARGQRAMVTVLAFLWLPSLYQVWTQLLRALEERAIPIWWVLVGVLGGLLLLTILVLAMWKVGFF |
| P08514-3 | MARALCPLQALWLLEWVLLLLGPCAAPPAWALNLDPVQLTFYAGPNGSQFGFSLDFHKDSHGRVAIVVGAPRTLGPSQEETGGVFLCPWR AEGGQCPSLLFDLRDETRNVGSQTLQTFKARQGLGASVVSWSDVIVACAPWQHWNVLEKTEEAEKTPVGSCFLAQPESGRRAEYSPCRGN TLSRIYVENDFSWDKRYCEAGFSSVVTQAGELVLGAPGGYYFLGLLAQAPVADIFSSYRPGILLWHVSSQSLSFDSSNPEYFDGYWGYSV AVGEFDGDLNTTEYVVGAPTWSWTLGAVEILDSYYQRLHRLRGEQMASYFGHSVAVTDVNGDGRHDLLVGAPLYMESRADRKLAEVGRVY LFLQPRGPHALGAPSLLLTGTQLYGRFGSAIAPLGDLDRDGYNDIAVAAPYGGPSGRGQVLVFLGQSEGLRSRPSQVLDSPFPTGSAFGF SLRGAVDIDDNGYPDLIVGAYGANQVAVYRAQPVVKASVQLLVQDSLNPAVKSCVLPQTKTPVSCFNIQMCVGATGHNIPQKLSLNAELQ LDRQKPRQGRRVLLLGSQQAGTTLNLDLGGKHSPICHTTMAFLRDEADFRDKLSPIVLSLNVSLPPTEAGMAPAVVLHGDTHVQEQTRIV LDCGEDDVCVPQLQLTASVTGSPLLVGADNVLELQMDAANEGEGAYEAELAVHLPQGAHYMRALSNVEGFERLICNQKKENETRVVLCEL GNPMKKNAQIGIAMLVSVGNLEEAGESVSFQLQIRSKNSQNPNSKIVLLDVPVRAEAQVELRGNSFPASLVVAAEEGEREQNSLDSWGPK VEHTYELHNNGPGTVNGLHLSIHLPGQSQPSDLLYILDIQPQGGLQCFPQPPVNPLKVDWGLPIPSPSPIHPAHHKRDRRQIFLPEPEQP |
Protein Functional Features |
Main function of this protein. (from UniProt) |
| ITGA2B (go to UniProt):P08514 |
Retention analysis result of protein across 39 protein features of UniProt such as six molecule processing features, 13 region features, four site features, six amino acid modification features, two natural variation features, five experimental info features, and 3 secondary structure features. Here, because of limited space for viewing, we only show the protein feature retention information belong to the 13 regional features. All retention annotation result can be downloaded at * Minus value of BPloci means that the break pointn is located before the CDS. |
| - Retained protein feature among the 13 regional features. |
| Accession_id | Subsection | Start | End | Funcitonal feature | Splicing information |
| P08514 | Topological domain | 32 | 993 | Note=Extracellular;Ontology_term=ECO:0000255;evidence=ECO:0000255 | Type=Deletion;Start=948;End=981 |
| P08514 | Topological domain | 32 | 993 | Note=Extracellular;Ontology_term=ECO:0000255;evidence=ECO:0000255 | Type=Substitution;Start=910;End=1039 |
| P08514 | Transmembrane | 994 | 1019 | Note=Helical;Ontology_term=ECO:0000255;evidence=ECO:0000255 | Type=Substitution;Start=910;End=1039 |
| P08514 | Topological domain | 1020 | 1039 | Note=Cytoplasmic;Ontology_term=ECO:0000255;evidence=ECO:0000255 | Type=Substitution;Start=910;End=1039 |
| P08514 | Motif | 1022 | 1026 | Note=GFFKR motif | Type=Substitution;Start=910;End=1039 |
Gene Isoform Structures and Expression Levels for ITGA2B |
Gene structures of our canonical and alternative spliced genes of ITGA2B* Click on the image to open the UCSC genome browser with custom track showing this image in a new window. |
Expression levels of gene isoforms across GTEx. |
Expression levels of gene isoforms across TCGA. |
Protein Structures |
PDB and CIF files of the predicted protein structures * Here we show the 3D structure of the proteins using Mol*. AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. Model confidence is shown from the pLDDT values per residue. pLDDT corresponds to the model’s prediction of its score on the local Distance Difference Test. It is a measure of local accuracy (from AlphfaFold website). To color code individual residues, we transformed individual PDB files into CIF format. |
| 3D view using mol* of P08514-1 |
| 3D view using mol* of P08514-2 |
| 3D view using mol* of P08514-3 |
pLDDT Score Distribution |
pLDDT score distribution of the predicted protein structures from AlphaFold2* AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. |
| pLDDT distribution across the protein length of P08514-1 |
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| pLDDT distribution across the protein length of P08514-2 |
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| pLDDT distribution across the protein length of P08514-3 |
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Ramachandran Plot of Protein Structures |
Ramachandran plot of the torsional angles - phi (φ)and psi (ψ) - of the residues (amino acids) contained in this protein peptide. |
| Ramachandran plot of P08514-1 |
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| Ramachandran plot of P08514-2 |
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Potential Active Site Information |
The potential binding sites of these proteins were identified using SiteMap, a module of the Schrodinger suite. |
| UniProt-id | Site score | Size | D score | Volume | Exposure | Enclosure | Contact | Phobic | Philic | Balance | Don/Acc | Residues |
| P08514-1 | 1.033 | 293 | 1.024 | 970.004 | 0.583 | 0.748 | 0.876 | 0.235 | 1.12 | 0.21 | 1.278 | 52,53,54,55,56,57,58,59,64,126,127,128,129,130,131 ,132,140,141,202,203,204,205,206,207,208,209,211,2 68,269,270,271,272,273,274,279,280,281,282,284,303 ,319,322,323,324,325,326,335,342,343,386,389,390,3 91,392,393,410,411,450,451,452,453,454,455,456 |
| P08514-2 | 1.028 | 324 | 1.036 | 1053.353 | 0.6 | 0.739 | 0.885 | 0.367 | 1.065 | 0.345 | 1.038 | 49,52,53,54,55,56,57,58,71,72,80,118,120,121,123,1 26,127,128,129,130,131,132,140,141,143,155,202,203 ,204,205,206,207,208,209,211,268,269,270,271,272,2 73,274,279,280,281,282,284,303,322,323,324,325,326 ,335,342,343,386,389,390,391,392,393,410,411,450,4 51,452,453,454,455,456 |
| P08514-3 | 1.019 | 99 | 1.014 | 146.118 | 0.453 | 0.732 | 1.037 | 0.52 | 1.106 | 0.47 | 1.102 | 832,833,834,835,836,837,838,846,849,859,860,861,86 2,863,917,919,920,921,922,924 |
Protein Structure and Feature Comparision |
Protein Structure Comparision Using Template Modeling Scores (TM-score). |
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Protein Structure Comparision Visualization with mol*. between Canonical predicted structure (AF2)(orange) vs Canonical validated structure (PDB)(green) |
| 3D view using mol* of P08514-1_P08514-1_3fcs_A.pdb |
Protein Structure Comparision Visualization with mol*. between Canonical validated structure (PDB)(orange) vs Alternative predicted structure (AF2)(green) |
| 3D view using mol* of P08514-1_3fcs_A_P08514-2.pdb |
| 3D view using mol* of P08514-1_3fcs_A_P08514-3.pdb |
Protein Structure Comparision Visualization with mol*. between Canonical predicted structure (AF2)(orange) vs Alternative predicted structure (AF2)(green) |
| 3D view using mol* of P08514-1_P08514-2.pdb |
| 3D view using mol* of P08514-1_P08514-3.pdb |
Protein Feature Comparison of the protein sequendary structures among the protiens. |
| ./stats/secondary_structure/figure/P08514-1_vs_P08514-2.png |
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| ./stats/secondary_structure/figure/P08514-1_vs_P08514-3.png |
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Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens. |
| ./stats/relative_asa/P08514-1_vs_P08514-2.png |
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| ./stats/relative_asa/P08514-1_vs_P08514-3.png |
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Protein-Protein Interaction |
Interactors from UniProt. |
| Accession_id | Subsection | Start | End | Funcitonal feature | Splicing information |
Interactors from STRING. |
| Gene name | Interactors |
Related Drugs to ITGA2B |
Drugs targeting this gene/protein. (DrugBank) |
| UniProt accession | Gene name | DrugBank ID | Drug name | Drug group | Actions |
| P08514 | ITGA2B | DB00054 | Abciximab | approved | antagonist |
| P08514 | ITGA2B | DB06472 | Fradafiban | investigational | |
| P08514 | ITGA2B | DB00775 | Tirofiban | approved | antagonist |
| P08514 | ITGA2B | DB04863 | Lefradafiban | investigational |
Related Diseases to ITGA2B |
Previous studies relating to the alternative splicing of ITGA2B and disease information from the MeSH term (PubMed) |
| Gene | PMID | Title | Abstract | MeSH ID | MeSH term |
| ITGA2B | 12871379 | A novel homozygous splice junction mutation in GPIIb associated with alternative splicing, nonsense-mediated decay of GPIIb-mRNA, and type II Glanzmann's thrombasthenia. | This work reports the study of a patient suffering a bleeding disorder clinically diagnosed as Glanzmann's thrombasthenia (GT). Immunoblotting and flow cytometric analysis showed a low (= 10% of control) platelet content of GPIIb-IIIa, confirming it was indeed a type II GT. The molecular genetic analysis of the proband revealed the presence of a homozygous G188A transition in GPIIb. This mutation alters the consensus sequence of the splice donor site of intron 1 changing arginine 63 for lysine (R63K). No other mutation than [G188A]GPIIb was found in the proband and her parents after complete analysis of GPIIb and GPIIIa coding sequences, and the promoter, 3'-UTR, and intronic flanking regions of GPIIb. The GT phenotype of the proband is the result of a limited availability of GPIIb-mRNA. The etiopathogenic role of the [G188A]GPIIb mutation is supported by the following observations: (i) both parents, who are heterozygous for the [G188A]GPIIb mutation, show a marked decrease in the platelet content of GPIIb-mRNA; (ii) exontrap analysis demonstrated that the G188A mutation leads to a marked reduction in the steady-state level of GPIIb-mRNA. The reduced availability of platelet GPIIb-mRNA associated with the G188A mutation seems to be caused by either inefficient RNA splicing or a preferred utilization of alternative intronic donor sites that generate an in-frame STOP codon with the result of activation of nonsense-mediated mRNA decay, or both. | D013915 | Thrombasthenia |
Clinically important variants in ITGA2B |
(ClinVar, 04/20/2024) |
| accession_id | uniprot_id | gene_name | Type | Variant | Clinical_significance |
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