GP1BA

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GP1BA
Protein GP1BA PDB 1gwb.png
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesGP1BA, BDPLT1, BDPLT3, BSS, CD42B, CD42b-alpha, DBPLT3, GP1B, GPIbA, VWDP, GPIbalpha, glycoprotein Ib platelet alpha subunit, glycoprotein Ib platelet subunit alpha
External IDsOMIM: 606672 MGI: 1333744 HomoloGene: 143 GeneCards: GP1BA
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_000173

NM_010326

RefSeq (protein)

NP_000164

NP_034456

Location (UCSC)Chr 17: 4.93 – 4.94 MbChr 11: 70.64 – 70.64 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Platelet glycoprotein Ib alpha chain also known as glycoprotein Ib (platelet), alpha polypeptide or CD42b (Cluster of Differentiation 42b), is a protein that in humans is encoded by the GP1BA gene.

Function[]

Glycoprotein Ib (GP Ib) is a platelet surface membrane glycoprotein composed of a heterodimer, an alpha chain and a beta chain, that are linked by disulfide bonds.[citation needed] The Gp Ib functions as a receptor for von Willebrand factor (VWF). The complete receptor complex includes noncovalent association of the alpha and beta subunits with platelet glycoprotein IX and platelet glycoprotein V to form the glycoprotein Ib-IX-V complex. The binding of the GP Ib-IX-V complex to VWF facilitates initial platelet adhesion to vascular subendothelium after vascular injury, and also initiates signaling events within the platelet that lead to enhanced platelet activation, thrombosis, and hemostasis.[citation needed] This gene encodes the alpha subunit. Several polymorphisms and mutations have been described in this gene, some of which are the cause of Bernard–Soulier syndromes and platelet-type von Willebrand disease.[5]

Interactions[]

GP1BA has been shown to interact with YWHAZ[6][7][8] and FLNB.[9]

See also[]

  • Cluster of differentiation

References[]

  1. ^ Jump up to: a b c GRCh38: Ensembl release 89: ENSG00000185245 - Ensembl, May 2017
  2. ^ Jump up to: a b c GRCm38: Ensembl release 89: ENSMUSG00000050675 - Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^ "Entrez Gene: GP1BA glycoprotein Ib (platelet), alpha polypeptide".
  6. ^ Calverley DC, Kavanagh TJ, Roth GJ (February 1998). "Human signaling protein 14-3-3zeta interacts with platelet glycoprotein Ib subunits Ibalpha and Ibbeta". Blood. 91 (4): 1295–303. doi:10.1182/blood.V91.4.1295. PMID 9454760.
  7. ^ Du X, Fox JE, Pei S (March 1996). "Identification of a binding sequence for the 14-3-3 protein within the cytoplasmic domain of the adhesion receptor, platelet glycoprotein Ib alpha". J. Biol. Chem. 271 (13): 7362–7. doi:10.1074/jbc.271.13.7362. PMID 8631758.
  8. ^ Feng S, Christodoulides N, Reséndiz JC, Berndt MC, Kroll MH (January 2000). "Cytoplasmic domains of GpIbalpha and GpIbbeta regulate 14-3-3zeta binding to GpIb/IX/V". Blood. 95 (2): 551–7. doi:10.1182/blood.V95.2.551. PMID 10627461.
  9. ^ Takafuta T, Wu G, Murphy GF, Shapiro SS (July 1998). "Human beta-filamin is a new protein that interacts with the cytoplasmic tail of glycoprotein Ibalpha". J. Biol. Chem. 273 (28): 17531–8. doi:10.1074/jbc.273.28.17531. PMID 9651345.

Further reading[]

External links[]

This article incorporates text from the United States National Library of Medicine, which is in the public domain.


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