1K30

Crystal Structure Analysis of Squash (Cucurbita moschata) glycerol-3-phosphate (1)-acyltransferase

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
Structure Motif: Primary M-CSA Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1k30a1	Alpha and beta proteins (a/b)	Glycerol-3-phosphate (1)-acyltransferase	Glycerol-3-phosphate (1)-acyltransferase	Glycerol-3-phosphate (1)-acyltransferase	Glycerol-3-phosphate (1)-acyltransferase	crookneck pumpkin (Cucurbita moschata ) [TaxId: 3662 ],	SCOPe (2.08)
A	d1k30a2	Artifacts	Tags	Tags	Tags	N-terminal Tags	crookneck pumpkin (Cucurbita moschata ) [TaxId: 3662 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Glycerol-3-phosphate (1)-acyltransferase	8025386	4003349	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Glycerol-3-phosphate (1)-acyltransferase	8037765	3000661	SCOP2 (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	GPAT_N	e1k30A1	A: a/b three-layered sandwiches	X: Glycerol-3-phosphate (1)-acyltransferase (From Topology)	H: Glycerol-3-phosphate (1)-acyltransferase (From Topology)	T: Glycerol-3-phosphate (1)-acyltransferase	F: GPAT_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.1200.50	Mainly Alpha	Orthogonal Bundle	Non-ribosomal Peptide Synthetase Peptidyl Carrier Protein	Chain A	CATH (4.3.0)
A	3.40.1130.10	Alpha Beta	3-Layer(aba) Sandwich	Glycerol-3-phosphate (1)-acyltransferase	Glycerol-3-phosphate (1)-acyltransferase	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF14829	Glycerol-3-phosphate acyltransferase N-terminal (GPAT_N)	Glycerol-3-phosphate acyltransferase N-terminal	GPAT_N is the N-terminal domain of glycerol-3-phosphate acyltransferases, and it forms a four-helix bundle [1]. Glycerol-3-phosphate (1)-acyltransferase(G3PAT) catalyses the incorporation of an acyl group from either acyl-acyl carrier proteins or acy ...	GPAT_N is the N-terminal domain of glycerol-3-phosphate acyltransferases, and it forms a four-helix bundle [1]. Glycerol-3-phosphate (1)-acyltransferase(G3PAT) catalyses the incorporation of an acyl group from either acyl-acyl carrier proteins or acyl-CoAs into the sn-1 position of glycerol 3-phosphate to yield 1-acylglycerol-3-phosphate. G3PATs can either be selective, preferentially using the unsaturated fatty acid, oleate (C18:1), as the acyl donor, or non-selective, using either oleate or the saturated fatty acid, palmitate (C16:0), at comparable rates. The differential substrate-specificity for saturated versus unsaturated fatty acids seen within this enzyme family has been implicated in the sensitivity of plants to chilling temperatures [2]. The exact function of this domain is not known. it lies upstream of family Acyltransferase, Pfam:PF01553.	Domain
A	PF01553	Acyltransferase (Acyltransferase)	Acyltransferase	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	glycerol-3-phosphate acyltransferase	O-acyltransferase activity acyltransferase activity glycerol-3-phosphate O-acyltransferase activity acyltransferase activity, transferring groups other than amino-acyl groups transferase activity catalytic activity sn-1-glycerol-3-phosphate C16:0-DCA-CoA acyl transferase activity	cellular biosynthetic process glycerophospholipid metabolic process lipid biosynthetic process CDP-diacylglycerol biosynthetic process phospholipid metabolic process organic substance metabolic process phosphate-containing compound metabolic process organic substance biosynthetic process phosphorus metabolic process CDP-diacylglycerol metabolic process glycerophospholipid biosynthetic process cellular metabolic process primary metabolic process phospholipid biosynthetic process cellular biosynthetic process glycerophospholipid metabolic process lipid biosynthetic process CDP-diacylglycerol biosynthetic process phospholipid metabolic process organic substance metabolic process phosphate-containing compound metabolic process organic substance biosynthetic process phosphorus metabolic process CDP-diacylglycerol metabolic process glycerophospholipid biosynthetic process cellular metabolic process primary metabolic process phospholipid biosynthetic process biosynthetic process glycerolipid biosynthetic process organophosphate metabolic process organophosphate biosynthetic process cellular lipid metabolic process glycerolipid metabolic process metabolic process cellular process lipid metabolic process	membrane-bounded organelle intracellular anatomical structure plastid cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle plastid stroma organelle chloroplast stroma cytoplasm chloroplast

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR002123	Phospholipid/glycerol acyltransferase	Domain
A	IPR016222	Glycerol-3-phosphate O-acyltransferase, chloroplast	Family
A	IPR023083	Glycerol-3-phosphate O-acyltransferase, alpha helical bundle, N-terminal	Domain
A	IPR038114	GPAT, N-terminal domain superfamily	Homologous Superfamily

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	glycerol-3-phosphate O-acyltransferase M-CSA #783	Glycerol-3-phosphate (1)-acyltransferase (G3PAT) catalyses the attachment of an acyl group from either acyl-carrier proteins (acyl-ACPs) or acyl-CoAs onto the C1 hydroxyl group of glycerol-3-phosphate to give 1-acylglycerol-3-phosphate. Different G3PAT enzymes have different substrate specificities, with some preferring to add the unsaturated fatty acid oleate and others using both oleate and the saturated fatty acid palmitate. The different substrate specificities within this family has been implicated in the sensitivity of plants to chilling temperatures.	Defined by 2 residues: HIS:A-139ASP:A-144 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 2.3.1.15 (PDB Primary Data) Search M-CSA Motif + EC 2.3.1.15

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.