8OS5

Crystal structure of the Factor XII heavy chain reveals an interlocking dimer with a FnII to kringle domain interaction

External Resource: Annotation

Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF00039	Fibronectin type I domain (fn1)	Fibronectin type I domain	-	Domain
A, B, C	PF00008	EGF-like domain (EGF)	EGF-like domain	There is no clear separation between noise and signal. Pfam:PF00053 is very similar, but has 8 instead of 6 conserved cysteines. Includes some cytokine receptors. The EGF domain misses the N-terminus regions of the Ca2+ binding EGF domains (this is t ...	There is no clear separation between noise and signal. Pfam:PF00053 is very similar, but has 8 instead of 6 conserved cysteines. Includes some cytokine receptors. The EGF domain misses the N-terminus regions of the Ca2+ binding EGF domains (this is the main reason of discrepancy between swiss-prot domain start/end and Pfam). The family is hard to model due to many similar but different sub-types of EGF domains. Pfam certainly misses a number of EGF domains.	Domain
A, B, C	PF00051	Kringle domain (Kringle)	Kringle domain	Kringle domains have been found in plasminogen, hepatocyte growth factors, prothrombin, and apolipoprotein A. Structure is disulfide-rich, nearly all-beta.	Domain
A, B, C	PF00040	Fibronectin type II domain (fn2)	Fibronectin type II domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Coagulation factor XII-Mie	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding peptidase activity catalytic activity, acting on a protein serine hydrolase activity serine-type peptidase activity hydrolase activity serine-type endopeptidase activity catalytic activity endopeptidase activity	multicellular organismal process regulation of body fluid levels wound healing response to stimulus hemostasis biological regulation blood coagulation response to stress coagulation regulation of biological quality response to wounding zymogen activation organonitrogen compound metabolic process cellular biosynthetic process multicellular organismal process regulation of body fluid levels wound healing response to stimulus hemostasis biological regulation blood coagulation response to stress coagulation regulation of biological quality response to wounding zymogen activation organonitrogen compound metabolic process cellular biosynthetic process cellular metabolic process primary metabolic process gene expression macromolecule biosynthetic process protein maturation organic substance metabolic process biosynthetic process proteolysis organic substance biosynthetic process protein processing metabolic process cellular process protein metabolic process macromolecule metabolic process	extracellular region extracellular space cellular anatomical entity rough endoplasmic reticulum membrane-bounded organelle intracellular organelle intracellular anatomical structure organelle endoplasmic reticulum cytoplasm intracellular membrane-bounded organelle endomembrane system

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR013806	Kringle-like fold	Homologous Superfamily
A, B, C	IPR038178	Kringle superfamily	Homologous Superfamily
A, B, C	IPR036943	Fibronectin type II domain superfamily	Homologous Superfamily
A, B, C	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
A, B, C	IPR000083	Fibronectin, type I	Domain
A, B, C	IPR001314	Peptidase S1A, chymotrypsin family	Family
A, B, C	IPR033116	Serine proteases, trypsin family, serine active site	Active Site
A, B, C	IPR001254	Serine proteases, trypsin domain	Domain
A, B, C	IPR018056	Kringle, conserved site	Conserved Site
A, B, C	IPR001881	EGF-like calcium-binding domain	Domain
A, B, C	IPR014394	Coagulation factor XII/hepatocyte growth factor activator	Family
A, B, C	IPR000562	Fibronectin type II domain	Domain
A, B, C	IPR000742	EGF-like domain	Domain
A, B, C	IPR043504	Peptidase S1, PA clan, chymotrypsin-like fold	Homologous Superfamily
A, B, C	IPR018114	Serine proteases, trypsin family, histidine active site	Active Site
A, B, C	IPR000001	Kringle	Domain

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 R01GM133198.