Annotations: 3RFE

Crystal structure of glycoprotein GPIb ectodomain

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	DHDPS	e3rfeB1	A: alpha arrays	X: Alpha-beta plaits	H: Phage tail protein-like	T: Transmembrane protein 14A	F: DHDPS	ECOD (v295.2)
A	MHC_I	e3rfeA1	A: alpha arrays	X: MHC antigen-recognition domain	H: MHC antigen-recognition domain	T: MHC antigen-recognition domain	F: MHC_I	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.80.10.10	Alpha Beta	Alpha-Beta Horseshoe	Leucine-rich repeat, LRR (right-handed beta-alpha superhelix)	Ribonuclease Inhibitor	CATH (4.3.0)
A	3.80.10.10	Alpha Beta	Alpha-Beta Horseshoe	Leucine-rich repeat, LRR (right-handed beta-alpha superhelix)	Ribonuclease Inhibitor	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Platelet glycoprotein Ib beta chain	identical protein binding protein binding binding molecular transducer activity transmembrane signaling receptor activity signaling receptor activity	multicellular organismal process regulation of body fluid levels wound healing response to stimulus cell activation hemostasis biological regulation blood coagulation response to stress coagulation cellular process regulation of biological quality response to wounding platelet activation multicellular organismal process regulation of body fluid levels wound healing response to stimulus cell activation hemostasis biological regulation blood coagulation response to stress coagulation cellular process regulation of biological quality response to wounding platelet activation developmental process cellular developmental process hemopoiesis megakaryocyte differentiation cell development myeloid cell differentiation cell differentiation megakaryocyte development anatomical structure development myeloid cell development cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway signaling signal transduction cell communication calcium ion transmembrane import into cytosol transport monoatomic ion transmembrane transport establishment of localization calcium ion transport metal ion transport monoatomic cation transmembrane transport transmembrane transport release of sequestered calcium ion into cytosol localization monoatomic ion transport monoatomic cation transport calcium ion transmembrane transport cell adhesion protein maturation blood coagulation, intrinsic pathway blood coagulation, fibrin clot formation protein metabolic process protein activation cascade primary metabolic process gene expression macromolecule biosynthetic process biosynthetic process metabolic process macromolecule metabolic process positive regulation of biological process regulation of cell activation positive regulation of platelet activation positive regulation of cell activation regulation of multicellular organismal process positive regulation of cellular process regulation of platelet activation positive regulation of multicellular organismal process	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR000372	Leucine-rich repeat N-terminal domain	Domain
A, B	IPR060417	Platelet glycoprotein Ib beta chain, C-terminal	Domain
A, B	IPR032675	Leucine-rich repeat domain superfamily	Homologous Superfamily
A, B	IPR000483	Cysteine-rich flanking region, C-terminal	Domain
A, B	IPR052313	Platelet Glycoprotein Ib-IX-V Complex	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	: P13224	Bernard-Soulier syndrome thrombocytopenia polycystic ovary syndrome Craniofacial Abnormalities juvenile idiopathic arthritis DiGeorge syndrome prostate carcinoma velocardiofacial syndrome autosomal dominant macrothrombocytopenia congenital heart disease idiopathic scoliosis 22q11.2 deletion syndrome

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.