Annotations: 6CZX

Crystal structure of Arabidopsis thaliana phosphoserine aminotransferase isoform 1 (AtPSAT1) in complex with PLP internal aldimine

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
Protein Modification Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
D	d6czxd1	Alpha and beta proteins (a/b)	PLP-dependent transferase-like	PLP-dependent transferases	automated matches	automated matches	Mouse-ear cress (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)
D	d6czxd2	Artifacts	Tags	Tags	Tags	N-terminal Tags	Mouse-ear cress (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)
C	d6czxc1	Alpha and beta proteins (a/b)	PLP-dependent transferase-like	PLP-dependent transferases	automated matches	automated matches	Mouse-ear cress (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)
C	d6czxc2	Artifacts	Tags	Tags	Tags	N-terminal Tags	Mouse-ear cress (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)
B	d6czxb1	Alpha and beta proteins (a/b)	PLP-dependent transferase-like	PLP-dependent transferases	automated matches	automated matches	Mouse-ear cress (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)
B	d6czxb2	Artifacts	Tags	Tags	Tags	N-terminal Tags	Mouse-ear cress (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)
A	d6czxa1	Alpha and beta proteins (a/b)	PLP-dependent transferase-like	PLP-dependent transferases	automated matches	automated matches	Mouse-ear cress (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)
A	d6czxa2	Artifacts	Tags	Tags	Tags	N-terminal Tags	Mouse-ear cress (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	PLP-dependent transferases	8078934	3000954	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	PLP-dependent transferases	8078934	3000954	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	PLP-dependent transferases	8078934	3000954	SCOP2B (2022-06-29)
A	SCOP2 Family	GABA-aminotransferase-like	8078933	4000675	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	PLP-dependent transferases	8078934	3000954	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)
D	DEAD	e6czxD1	A: alpha arrays	X: OB-fold	H: Nucleic acid-binding protein	T: Nucleotidyltransferase	F: DEAD	ECOD (v295.2)
D	Cation_ATPase_C,Cation_ATPase_N	e6czxD2	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Class I glutamine amidotransferase-like	F: Cation_ATPase_C,Cation_ATPase_N	ECOD (v295.2)
C	DEAD	e6czxC1	A: alpha arrays	X: OB-fold	H: Nucleic acid-binding protein	T: Nucleotidyltransferase	F: DEAD	ECOD (v295.2)
C	Cation_ATPase_C,Cation_ATPase_N	e6czxC2	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Class I glutamine amidotransferase-like	F: Cation_ATPase_C,Cation_ATPase_N	ECOD (v295.2)
B	DEAD	e6czxB2	A: alpha arrays	X: OB-fold	H: Nucleic acid-binding protein	T: Nucleotidyltransferase	F: DEAD	ECOD (v295.2)
B	Cation_ATPase_C,Cation_ATPase_N	e6czxB3	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Class I glutamine amidotransferase-like	F: Cation_ATPase_C,Cation_ATPase_N	ECOD (v295.2)
A	SAM_1	e6czxA1	A: alpha arrays	X: OB-fold	H: Nucleic acid-binding protein	T: Nucleotidyltransferase	F: SAM_1	ECOD (v295.2)
A	Cation_ATPase_C,Cation_ATPase_N	e6czxA2	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Class I glutamine amidotransferase-like	F: Cation_ATPase_C,Cation_ATPase_N	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	3.40.640.10	Alpha Beta	3-Layer(aba) Sandwich	Aspartate Aminotransferase	domain 2	CATH (4.3.0)
D	3.90.1150.10	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1	Aspartate Aminotransferase, domain 1	CATH (4.3.0)
C	3.40.640.10	Alpha Beta	3-Layer(aba) Sandwich	Aspartate Aminotransferase	domain 2	CATH (4.3.0)
C	3.90.1150.10	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1	Aspartate Aminotransferase, domain 1	CATH (4.3.0)
B	3.40.640.10	Alpha Beta	3-Layer(aba) Sandwich	Aspartate Aminotransferase	domain 2	CATH (4.3.0)
B	3.90.1150.10	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1	Aspartate Aminotransferase, domain 1	CATH (4.3.0)
A	3.40.640.10	Alpha Beta	3-Layer(aba) Sandwich	Aspartate Aminotransferase	domain 2	CATH (4.3.0)
A	3.90.1150.10	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1	Aspartate Aminotransferase, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF00266	Aminotransferase class-V (Aminotran_5)	Aminotransferase class-V	This domain is found in amino transferases, and other enzymes including cysteine desulphurase EC:4.4.1.-.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Phosphoserine aminotransferase 1, chloroplastic	identical protein binding protein binding binding protein homodimerization activity protein dimerization activity vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding anion binding heterocyclic compound binding small molecule binding O-phospho-L-serine:2-oxoglutarate transaminase activity transferase activity, transferring nitrogenous groups identical protein binding protein binding binding protein homodimerization activity protein dimerization activity vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding anion binding heterocyclic compound binding small molecule binding O-phospho-L-serine:2-oxoglutarate transaminase activity transferase activity, transferring nitrogenous groups transaminase activity transferase activity catalytic activity	oxoacid metabolic process small molecule biosynthetic process carboxylic acid metabolic process amino acid metabolic process primary metabolic process L-serine metabolic process L-serine biosynthetic process carboxylic acid biosynthetic process proteinogenic amino acid metabolic process amino acid biosynthetic process biosynthetic process proteinogenic amino acid biosynthetic process metabolic process cellular process oxoacid metabolic process small molecule biosynthetic process carboxylic acid metabolic process amino acid metabolic process primary metabolic process L-serine metabolic process L-serine biosynthetic process carboxylic acid biosynthetic process proteinogenic amino acid metabolic process amino acid biosynthetic process biosynthetic process proteinogenic amino acid biosynthetic process metabolic process cellular process small molecule metabolic process serine family amino acid biosynthetic process	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure plastid organelle cytoplasm intracellular membrane-bounded organelle plastid stroma chloroplast stroma chloroplast

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR020578	Aminotransferase class-V, pyridoxal-phosphate binding site	Binding Site
A, B, C, D	IPR015421	Pyridoxal phosphate-dependent transferase, major domain	Homologous Superfamily
A, B, C, D	IPR015422	Pyridoxal phosphate-dependent transferase, small domain	Homologous Superfamily
A, B, C, D	IPR022278	Phosphoserine aminotransferase	Family
A, B, C, D	IPR015424	Pyridoxal phosphate-dependent transferase	Homologous Superfamily
A, B, C, D	IPR000192	Aminotransferase class V domain	Domain

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A, B, C, D	LLP	Parent Component: LYS : AA0119 : N6-pyridoxal phosphate-L-lysine MOD:00128

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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.