6TQU

The crystal structure of the MSP domain of human MOSPD2 in complex with the Phospho-FFAT motif of STARD3.

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Protein Modification Annotation

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	PapD-like	8101713	3002067	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	PapD-like	8101713	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	PF00635	e6tquA1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF00635	ECOD (1.6)
B	PF00635	e6tquB1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF00635	ECOD (1.6)

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
C, D	PF10457	Cholesterol-capturing domain (MENTAL)	Cholesterol-capturing domain	Human meta-static lymph node (MLN) 64 is a late endosomal membrane protein, and carries this MENTAL (MLN64N-terminal) domain at its N-terminus. The domain is composed of four trans-membrane helices with three short intervening loops [1]. The function ...	Human meta-static lymph node (MLN) 64 is a late endosomal membrane protein, and carries this MENTAL (MLN64N-terminal) domain at its N-terminus. The domain is composed of four trans-membrane helices with three short intervening loops [1]. The function of the domain is to capture cholesterol and pass it to the associated START domain Pfam:PF01852 for transfer to a cytosolic acceptor protein or membrane. In mammals, the MENTAL domain is involved in the localisation of MLN64 and MENTHO in late endosomes, and also in homo-and of hetero-interactions of these two proteins [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Motile sperm domain-containing protein 2	protein binding binding FFAT motif binding protein domain specific binding	chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion cellular response to stimulus positive regulation of monocyte chemotaxis positive regulation of locomotion regulation of cell motility regulation of cellular process regulation of response to external stimulus positive regulation of biological process positive regulation of chemotaxis chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion cellular response to stimulus positive regulation of monocyte chemotaxis positive regulation of locomotion regulation of cell motility regulation of cellular process regulation of response to external stimulus positive regulation of biological process positive regulation of chemotaxis positive regulation of cell migration regulation of monocyte chemotaxis positive regulation of response to stimulus positive regulation of response to external stimulus positive regulation of cell motility regulation of cell migration myeloid leukocyte migration positive regulation of mononuclear cell migration cell migration regulation of immune system process cell motility regulation of mononuclear cell migration positive regulation of immune system process positive regulation of cellular process cell chemotaxis regulation of biological process regulation of leukocyte chemotaxis regulation of leukocyte migration biological regulation positive regulation of leukocyte migration positive regulation of leukocyte chemotaxis regulation of chemotaxis monocyte chemotaxis leukocyte migration cellular response to chemical stimulus regulation of response to stimulus immune system process regulation of locomotion mononuclear cell migration cellular process leukocyte chemotaxis cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly protein homooligomerization cellular component organization or biogenesis positive regulation of neutrophil chemotaxis neutrophil migration granulocyte migration positive regulation of granulocyte chemotaxis regulation of neutrophil chemotaxis regulation of neutrophil migration neutrophil chemotaxis regulation of granulocyte chemotaxis positive regulation of neutrophil migration granulocyte chemotaxis organelle assembly non-membrane-bounded organelle assembly lipid storage lipid localization lipid droplet formation maintenance of location localization organelle organization macromolecule localization lipid droplet organization	cellular anatomical entity endomembrane system membrane-bounded organelle intracellular anatomical structure membrane intracellular vesicle intracellular membrane-bounded organelle specific granule membrane intracellular organelle cytoplasmic vesicle membrane bounding membrane of organelle vesicle membrane cytoplasmic vesicle organelle cellular anatomical entity endomembrane system membrane-bounded organelle intracellular anatomical structure membrane intracellular vesicle intracellular membrane-bounded organelle specific granule membrane intracellular organelle cytoplasmic vesicle membrane bounding membrane of organelle vesicle membrane cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle organelle membrane secretory granule membrane specific granule organelle membrane contact site endoplasmic reticulum-endosome membrane contact site cell periphery plasma membrane endoplasmic reticulum organelle subcompartment endoplasmic reticulum subcompartment nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum membrane
C, D	StAR-related lipid transfer protein 3	sterol binding binding organic cyclic compound binding alcohol binding steroid binding lipid binding cholesterol binding small molecule binding sterol transfer activity lipid transporter activity lipid transfer activity transporter activity cholesterol transfer activity identical protein binding sterol binding binding organic cyclic compound binding alcohol binding steroid binding lipid binding cholesterol binding small molecule binding sterol transfer activity lipid transporter activity lipid transfer activity transporter activity cholesterol transfer activity identical protein binding protein binding protein homodimerization activity protein dimerization activity	vesicle localization establishment of organelle localization cellular localization transport establishment of vesicle localization vesicle tethering to endoplasmic reticulum establishment of localization vesicle targeting vesicle-mediated transport cellular component organization localization organelle localization establishment of localization in cell cellular process vesicle localization establishment of organelle localization cellular localization transport establishment of vesicle localization vesicle tethering to endoplasmic reticulum establishment of localization vesicle targeting vesicle-mediated transport cellular component organization localization organelle localization establishment of localization in cell cellular process cellular component organization or biogenesis vesicle tethering macromolecule localization organic substance transport lipid localization cholesterol transport lipid transport sterol transport organic hydroxy compound transport organic substance metabolic process primary metabolic process metabolic process lipid metabolic process organic hydroxy compound metabolic process sterol metabolic process steroid metabolic process cholesterol metabolic process alcohol metabolic process organic cyclic compound metabolic process secondary alcohol metabolic process small molecule metabolic process mitochondrial transport cellular biosynthetic process lipid biosynthetic process C21-steroid hormone metabolic process cellular ketone metabolic process organic substance biosynthetic process progesterone metabolic process regulation of biological quality steroid biosynthetic process hormone biosynthetic process steroid hormone biosynthetic process olefinic compound biosynthetic process small molecule biosynthetic process progesterone biosynthetic process regulation of hormone levels cellular metabolic process biological regulation C21-steroid hormone biosynthetic process hormone metabolic process biosynthetic process organic cyclic compound biosynthetic process olefinic compound metabolic process ketone biosynthetic process	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle organelle membrane contact site endoplasmic reticulum-endosome membrane contact site cytosol endosome membrane endosome membrane membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle organelle membrane contact site endoplasmic reticulum-endosome membrane contact site cytosol endosome membrane endosome membrane intracellular vesicle late endosome membrane endomembrane system cytoplasmic vesicle membrane bounding membrane of organelle cytoplasmic vesicle vesicle membrane late endosome vesicle organelle membrane nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen vacuolar membrane lytic vacuole vacuole lytic vacuole membrane lysosomal membrane lysosome

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR001251	CRAL-TRIO lipid binding domain	Domain
A, B	IPR008962	PapD-like superfamily	Homologous Superfamily
A, B	IPR036865	CRAL-TRIO lipid binding domain superfamily	Homologous Superfamily
A, B	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A, B	IPR000535	Major sperm protein (MSP) domain	Domain
A, B	IPR036273	CRAL/TRIO, N-terminal domain superfamily	Homologous Superfamily
C, D	IPR000799	Steroidogenic acute regulatory protein-like	Family
C, D	IPR029867	StAR-related lipid transfer protein 3, C-terminal	Domain
C, D	IPR023393	START-like domain superfamily	Homologous Superfamily
C, D	IPR019498	MENTAL domain	Domain
C, D	IPR002913	START domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q8NHP6	lung cancer progressive supranuclear palsy
C, D	Pharos: Q14849	prostate cancer bipolar disorder inflammatory bowel disease rheumatoid arthritis cocaine use systemic lupus erythematosus Crohn disease ulcerative colitis

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
C, D	SEP	Parent Component: SER RESID: AA0037 PSI-MOD : O-phospho-L-serine MOD:00046

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.