Annotations: 3IKK

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	MSP-like	8079380	4007566	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	PapD-like	8079381	3002067	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	PapD-like	8079381	3002067	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Motile_Sperm	e3ikkA1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Motile_Sperm	ECOD (1.6)
B	Motile_Sperm	e3ikkB1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Motile_Sperm	ECOD (1.6)

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)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00635	MSP (Major sperm protein) domain (Motile_Sperm)	MSP (Major sperm protein) domain	Major sperm proteins are involved in sperm motility. These proteins oligomerise to form filaments. This family contains many other proteins.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Vesicle-associated membrane protein-associated protein B/C	protein heterodimerization activity protein binding binding protein dimerization activity FFAT motif binding protein domain specific binding cytoskeletal protein binding microtubule binding tubulin binding identical protein binding protein homodimerization activity cell adhesion molecule binding cadherin binding beta-tubulin binding protein heterodimerization activity protein binding binding protein dimerization activity FFAT motif binding protein domain specific binding cytoskeletal protein binding microtubule binding tubulin binding identical protein binding protein homodimerization activity cell adhesion molecule binding cadherin binding beta-tubulin binding enzyme binding	membrane organization cellular component organization organelle organization endoplasmic reticulum membrane organization cellular process cellular component organization or biogenesis endoplasmic reticulum organization endomembrane system organization vesicle budding from membrane cellular localization transport intracellular transport endoplasmic reticulum to Golgi vesicle-mediated transport establishment of localization membrane organization cellular component organization organelle organization endoplasmic reticulum membrane organization cellular process cellular component organization or biogenesis endoplasmic reticulum organization endomembrane system organization vesicle budding from membrane cellular localization transport intracellular transport endoplasmic reticulum to Golgi vesicle-mediated transport establishment of localization vesicle-mediated transport vesicle organization localization establishment of localization in cell COPII-coated vesicle budding Golgi vesicle transport negative regulation by host of viral genome replication biological process involved in interspecies interaction between organisms modulation by host of symbiont process viral life cycle negative regulation by host of viral process modulation by host of viral genome replication biological process involved in symbiotic interaction modulation by host of viral process viral genome replication viral process biological process involved in interaction with symbiont positive regulation by host of viral process positive regulation by host of viral genome replication macromolecule localization organic substance transport lipid localization cholesterol transport lipid transport sterol transport organic hydroxy compound transport cellular response to stimulus regulation of biological process response to organic substance regulation of cellular process cellular response to topologically incorrect protein response to stimulus signaling biological regulation endoplasmic reticulum unfolded protein response cellular response to unfolded protein response to unfolded protein cell communication cellular response to chemical stimulus cellular response to stress response to chemical response to stress response to topologically incorrect protein IRE1-mediated unfolded protein response signal transduction cellular response to organic substance response to endoplasmic reticulum stress regulation of viral process negative regulation of viral process regulation by virus of viral protein levels in host cell negative regulation of biological process regulation of biological quality negative regulation by virus of viral protein levels in host cell response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus defense response to virus defense response to other organism suppression of viral release by host response to external biotic stimulus response to virus inorganic ion homeostasis intracellular calcium ion homeostasis homeostatic process calcium ion homeostasis cellular homeostasis chemical homeostasis intracellular monoatomic cation homeostasis monoatomic ion homeostasis intracellular chemical homeostasis monoatomic cation homeostasis intracellular monoatomic ion homeostasis endoplasmic reticulum-plasma membrane tethering membrane docking endoplasmic reticulum localization organelle localization by membrane tethering organelle localization modulation by host of viral RNA genome replication cellular biosynthetic process RNA metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process organic substance metabolic process heterocycle metabolic process viral RNA genome replication organic substance biosynthetic process nitrogen compound metabolic process cellular metabolic process cellular nitrogen compound metabolic process primary metabolic process nucleobase-containing compound biosynthetic process heterocycle biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process organic cyclic compound metabolic process biosynthetic process aromatic compound biosynthetic process organic cyclic compound biosynthetic process metabolic process macromolecule metabolic process cellular aromatic compound metabolic process positive regulation of viral genome replication positive regulation of viral process positive regulation of biological process regulation of viral life cycle regulation of viral genome replication exit from host cell viral release from host cell biological process involved in interaction with host	cell periphery plasma membrane membrane cellular anatomical entity intracellular anatomical structure cytoplasm membrane-bounded organelle organelle subcompartment intracellular membrane-bounded organelle endomembrane system endoplasmic reticulum subcompartment intracellular organelle organelle nuclear outer membrane-endoplasmic reticulum membrane network cell periphery plasma membrane membrane cellular anatomical entity intracellular anatomical structure cytoplasm membrane-bounded organelle organelle subcompartment intracellular membrane-bounded organelle endomembrane system endoplasmic reticulum subcompartment intracellular organelle organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum organelle membrane endoplasmic reticulum membrane Golgi apparatus

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR008962	PapD-like superfamily	Homologous Superfamily
A, B	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A, B	IPR000535	Major sperm protein (MSP) domain	Domain
A, B	IPR016763	Vesicle-associated membrane-protein-associated protein	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: O95292	amyotrophic lateral sclerosis amyotrophic lateral sclerosis type 8 adult-onset proximal spinal muscular atrophy, autosomal dominant Spinal Muscular Atrophy, Proximal, Adult, Autosomal Dominant cystic fibrosis glioblastoma malignant glioma psoriasis astrocytic tumor gastric cancer invasive ductal breast carcinoma neurodegenerative disease spinal muscular atrophy atypical teratoid rhabdoid tumor gastric carcinoma amyotrophic lateral sclerosis amyotrophic lateral sclerosis type 8 adult-onset proximal spinal muscular atrophy, autosomal dominant Spinal Muscular Atrophy, Proximal, Adult, Autosomal Dominant cystic fibrosis glioblastoma malignant glioma psoriasis astrocytic tumor gastric cancer invasive ductal breast carcinoma neurodegenerative disease spinal muscular atrophy atypical teratoid rhabdoid tumor gastric carcinoma large cell medulloblastoma ovarian cancer

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.