1UW5 | pdb_00001uw5

Structure of PITP-alpha complexed to phosphatidylinositol

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1uw5a_	Alpha and beta proteins (a+b)	TBP-like	Bet v1-like	Phoshatidylinositol transfer protein, PITP	Phoshatidylinositol transfer protein, PITP	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1uw5b_	Alpha and beta proteins (a+b)	TBP-like	Bet v1-like	Phoshatidylinositol transfer protein, PITP	Phoshatidylinositol transfer protein, PITP	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d1uw5c_	Alpha and beta proteins (a+b)	TBP-like	Bet v1-like	Phoshatidylinositol transfer protein, PITP	Phoshatidylinositol transfer protein, PITP	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D	d1uw5d_	Alpha and beta proteins (a+b)	TBP-like	Bet v1-like	Phoshatidylinositol transfer protein, PITP	Phoshatidylinositol transfer protein, PITP	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Phoshatidylinositol transfer protein, PITP	8022821	4003635	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Bet v1-like	8035201	3000738	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Bet v1-like	8035201	3000738	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Bet v1-like	8035201	3000738	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Bet v1-like	8035201	3000738	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	IP_trans	e1uw5A1	A: a+b two layers	X: TBP-like	H: Bet v1-like (From Topology)	T: Bet v1-like	F: IP_trans	ECOD (1.6)
B	IP_trans	e1uw5B1	A: a+b two layers	X: TBP-like	H: Bet v1-like (From Topology)	T: Bet v1-like	F: IP_trans	ECOD (1.6)
C	IP_trans	e1uw5C1	A: a+b two layers	X: TBP-like	H: Bet v1-like (From Topology)	T: Bet v1-like	F: IP_trans	ECOD (1.6)
D	IP_trans	e1uw5D1	A: a+b two layers	X: TBP-like	H: Bet v1-like (From Topology)	T: Bet v1-like	F: IP_trans	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.530.20	Alpha Beta	2-Layer Sandwich	Alpha-D-Glucose-1,6-Bisphosphate	Chain A, domain 4	CATH (4.3.0)
B	3.30.530.20	Alpha Beta	2-Layer Sandwich	Alpha-D-Glucose-1,6-Bisphosphate	Chain A, domain 4	CATH (4.3.0)
C	3.30.530.20	Alpha Beta	2-Layer Sandwich	Alpha-D-Glucose-1,6-Bisphosphate	Chain A, domain 4	CATH (4.3.0)
D	3.30.530.20	Alpha Beta	2-Layer Sandwich	Alpha-D-Glucose-1,6-Bisphosphate	Chain A, domain 4	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF02121	Phosphatidylinositol transfer protein (IP_trans)	Phosphatidylinositol transfer protein	Along with the structurally unrelated Sec14p family (found in Pfam:PF00650), this family can bind/exchange one molecule of phosphatidylinositol (PI) or phosphatidylcholine (PC) and thus aids their transfer between different membrane compartments. The ...	Along with the structurally unrelated Sec14p family (found in Pfam:PF00650), this family can bind/exchange one molecule of phosphatidylinositol (PI) or phosphatidylcholine (PC) and thus aids their transfer between different membrane compartments. There are three sub-families - all share an N-terminal PITP-like domain, whose sequence is highly conserved. It is described as consisting of three regions. The N-terminal region is thought to bind the lipid and contains two helices and an eight-stranded, mostly antiparallel beta-sheet. An intervening loop region, which is thought to play a role in protein-protein interactions, separates this from the C-terminal region, which exhibits the greatest sequence variation and may be involved in membrane binding. PITP alpha (Swiss:Q00169) has a 16-fold greater affinity for PI than PC. Together with PITP beta (Swiss:P48739), it is expressed ubiquitously in all tissues [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	PHOSPHATIDYLINOSITOL TRANSFER PROTEIN ALPHA ISOFORM	phosphatidylcholine transporter activity lipid transporter activity transporter activity phospholipid transporter activity binding phospholipid binding lipid binding phosphatidylinositol binding phospholipid transfer activity phosphatidylcholine transfer activity lipid transfer activity cation binding ion binding phosphatidylcholine binding phosphatidylcholine transporter activity lipid transporter activity transporter activity phospholipid transporter activity binding phospholipid binding lipid binding phosphatidylinositol binding phospholipid transfer activity phosphatidylcholine transfer activity lipid transfer activity cation binding ion binding phosphatidylcholine binding quaternary ammonium group binding small molecule binding anion binding phosphatidylglycerol binding phosphatidylinositol transfer activity	multicellular organismal process sensory perception of light stimulus system process sensory perception nervous system process visual perception localization transport macromolecule localization phospholipid transport lipid localization lipid transport establishment of localization organophosphate ester transport multicellular organismal process sensory perception of light stimulus system process sensory perception nervous system process visual perception localization transport macromolecule localization phospholipid transport lipid localization lipid transport establishment of localization organophosphate ester transport primary metabolic process metabolic process cellular process lipid metabolic process axonogenesis cellular developmental process cell projection organization plasma membrane bounded cell projection morphogenesis cell development neuron projection development cell morphogenesis cellular component organization neurogenesis multicellular organism development cell projection morphogenesis neuron differentiation neuron projection morphogenesis cell differentiation anatomical structure development cellular component organization or biogenesis system development developmental process plasma membrane bounded cell projection organization nervous system development axon development cell morphogenesis involved in neuron differentiation generation of neurons anatomical structure morphogenesis neuron development	extracellular exosome membrane-bounded organelle extracellular vesicle cellular anatomical structure extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol intracellular organelle extracellular exosome membrane-bounded organelle extracellular vesicle cellular anatomical structure extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol intracellular organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR001666	Phosphatidylinositol transfer protein	Family
A, B, C, D	IPR023393	START-like domain superfamily	Homologous Superfamily
A, B, C, D	IPR055261	Phosphatidylinositol transfer protein, N-terminal	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D	Pharos: Q00169	atypical teratoid rhabdoid tumor large cell medulloblastoma psoriasis brain aneurysm malignant glioma tuberculosis glioblastoma ovarian cancer

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.