Annotations: 2RIK

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2rika1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	rabbit (Oryctolagus cuniculus ) [TaxId: 9986 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	V-set	e2rikA4	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Subtilisin-like	T: Subtilisin-like	F: V-set	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Titin	cytoskeletal protein binding protein binding binding telethonin binding	multicellular organismal process cardiac muscle cell development cellular developmental process cell development muscle cell differentiation striated muscle tissue development muscle structure development multicellular organism development striated muscle cell development muscle cell development cell differentiation anatomical structure development cardiac cell development muscle tissue development multicellular organismal process cardiac muscle cell development cellular developmental process cell development muscle cell differentiation striated muscle tissue development muscle structure development multicellular organism development striated muscle cell development muscle cell development cell differentiation anatomical structure development cardiac cell development muscle tissue development system development developmental process heart development cardiac muscle tissue development animal organ development cardiac muscle cell differentiation tissue development cardiocyte differentiation circulatory system development cellular process striated muscle cell differentiation heart morphogenesis anatomical structure morphogenesis animal organ morphogenesis	intracellular anatomical structure intracellular membraneless organelle sarcomere intracellular organelle I band cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
A	IPR003598	Immunoglobulin subtype 2	Domain
A	IPR015129	Titin, Z repeat	Repeat
A	IPR003599	Immunoglobulin domain subtype	Domain
A	IPR007110	Immunoglobulin-like domain	Domain
A	IPR013098	Immunoglobulin I-set	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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.