Annotations: 6JZA

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Kazal_2	e6jzaA1	A: few secondary structure elements	X: Kazal-type serine protease inhibitors-like	H: Kazal-type serine protease inhibitors (From Topology)	T: Kazal-type serine protease inhibitors	F: Kazal_2	ECOD (1.6)
A	UNK_F_TYPE	e6jzaA2	A: few secondary structure elements	X: EGF-like	H: EGF-related	T: EGF/Laminin	F: UNK_F_TYPE	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.60.30	Alpha Beta	2-Layer Sandwich	Wheat Germ Agglutinin (Isolectin 2)	domain 1	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF09289	Follistatin/Osteonectin-like EGF domain (FOLN)	Follistatin/Osteonectin-like EGF domain	Members of this family are predominantly found in osteonectin and follistatin and adopt an EGF-like fold [1,2].	Domain
A	PF07648	Kazal-type serine protease inhibitor domain (Kazal_2)	Kazal-type serine protease inhibitor domain	Usually indicative of serine protease inhibitors. However, kazal-like domains are also seen in the extracellular part of agrins, which are not known to be protease inhibitors. Kazal domains often occur in tandem arrays. Small alpha+beta fold containi ...	Usually indicative of serine protease inhibitors. However, kazal-like domains are also seen in the extracellular part of agrins, which are not known to be protease inhibitors. Kazal domains often occur in tandem arrays. Small alpha+beta fold containing three disulphides.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Follistatin-related protein 1	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding heparin binding glycosaminoglycan binding carbohydrate derivative binding sulfur compound binding	multicellular organismal process multicellular organismal-level homeostasis homeostatic process hematopoietic stem cell homeostasis homeostasis of number of cells regulation of biological process regulation of cellular process negative regulation of programmed cell death regulation of apoptotic process biological regulation negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process multicellular organismal process multicellular organismal-level homeostasis homeostatic process hematopoietic stem cell homeostasis homeostasis of number of cells regulation of biological process regulation of cellular process negative regulation of programmed cell death regulation of apoptotic process biological regulation negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process cellular process apoptotic process programmed cell death endothelial cell migration cell migration cell motility developmental process epithelium development endothelial cell differentiation cellular developmental process endothelium development cell differentiation anatomical structure development tissue development epithelial cell differentiation	cellular anatomical structure extracellular region extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR015369	Follistatin/Osteonectin EGF domain	Domain
A	IPR036058	Kazal domain superfamily	Homologous Superfamily
A	IPR003645	Follistatin-like, N-terminal	Domain
A	IPR057020	Follistatin-related protein 1, EF-hand domain pair	Domain
A	IPR002048	EF-hand domain	Domain
A	IPR002350	Kazal domain	Domain
A	IPR050653	Protease Inhibitors and Growth Factor Antagonists	Family
A	IPR011992	EF-hand domain pair	Homologous Superfamily

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.