8A5W

Crystal structure of the human phosphoserine aminotransferase (PSAT) in complex with O-phosphoserine

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 [auth D]	SCOP2B Superfamily	PLP-dependent transferases	8078936	3000954	SCOP2B (2022-06-29)
E [auth F]	SCOP2B Superfamily	PLP-dependent transferases	8078936	3000954	SCOP2B (2022-06-29)
F [auth A]	SCOP2B Superfamily	PLP-dependent transferases	8078936	3000954	SCOP2B (2022-06-29)
B [auth E]	SCOP2B Superfamily	PLP-dependent transferases	8078936	3000954	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	PLP-dependent transferases	8078936	3000954	SCOP2B (2022-06-29)
D [auth B]	SCOP2B Superfamily	PLP-dependent transferases	8078936	3000954	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	PLP-dependent transferases	8078936	3000954	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	PLP-dependent transferases	8078936	3000954	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 [auth D]	PF00266	e8a5wD1	A: a+b two layers	X: C-terminal domain in some PLP-dependent transferases (From Topology)	H: C-terminal domain in some PLP-dependent transferases (From Topology)	T: C-terminal domain in some PLP-dependent transferases	F: PF00266	ECOD (1.6)
A [auth D]	PF00266	e8a5wD2	A: a/b three-layered sandwiches	X: PLP-dependent transferases (From Topology)	H: PLP-dependent transferases (From Topology)	T: PLP-dependent transferases	F: PF00266	ECOD (1.6)
E [auth F]	PF00266	e8a5wF2	A: a+b two layers	X: C-terminal domain in some PLP-dependent transferases (From Topology)	H: C-terminal domain in some PLP-dependent transferases (From Topology)	T: C-terminal domain in some PLP-dependent transferases	F: PF00266	ECOD (1.6)
E [auth F]	PF00266	e8a5wF1	A: a/b three-layered sandwiches	X: PLP-dependent transferases (From Topology)	H: PLP-dependent transferases (From Topology)	T: PLP-dependent transferases	F: PF00266	ECOD (1.6)
F [auth A]	PF00266	e8a5wA1	A: a+b two layers	X: C-terminal domain in some PLP-dependent transferases (From Topology)	H: C-terminal domain in some PLP-dependent transferases (From Topology)	T: C-terminal domain in some PLP-dependent transferases	F: PF00266	ECOD (1.6)
F [auth A]	PF00266	e8a5wA2	A: a/b three-layered sandwiches	X: PLP-dependent transferases (From Topology)	H: PLP-dependent transferases (From Topology)	T: PLP-dependent transferases	F: PF00266	ECOD (1.6)
B [auth E]	PF00266	e8a5wE2	A: a+b two layers	X: C-terminal domain in some PLP-dependent transferases (From Topology)	H: C-terminal domain in some PLP-dependent transferases (From Topology)	T: C-terminal domain in some PLP-dependent transferases	F: PF00266	ECOD (1.6)
B [auth E]	PF00266	e8a5wE1	A: a/b three-layered sandwiches	X: PLP-dependent transferases (From Topology)	H: PLP-dependent transferases (From Topology)	T: PLP-dependent transferases	F: PF00266	ECOD (1.6)
C	PF00266	e8a5wC2	A: a+b two layers	X: C-terminal domain in some PLP-dependent transferases (From Topology)	H: C-terminal domain in some PLP-dependent transferases (From Topology)	T: C-terminal domain in some PLP-dependent transferases	F: PF00266	ECOD (1.6)
C	PF00266	e8a5wC1	A: a/b three-layered sandwiches	X: PLP-dependent transferases (From Topology)	H: PLP-dependent transferases (From Topology)	T: PLP-dependent transferases	F: PF00266	ECOD (1.6)
D [auth B]	PF00266	e8a5wB2	A: a+b two layers	X: C-terminal domain in some PLP-dependent transferases (From Topology)	H: C-terminal domain in some PLP-dependent transferases (From Topology)	T: C-terminal domain in some PLP-dependent transferases	F: PF00266	ECOD (1.6)
D [auth B]	PF00266	e8a5wB1	A: a/b three-layered sandwiches	X: PLP-dependent transferases (From Topology)	H: PLP-dependent transferases (From Topology)	T: PLP-dependent transferases	F: PF00266	ECOD (1.6)
G	PF00266	e8a5wG2	A: a+b two layers	X: C-terminal domain in some PLP-dependent transferases (From Topology)	H: C-terminal domain in some PLP-dependent transferases (From Topology)	T: C-terminal domain in some PLP-dependent transferases	F: PF00266	ECOD (1.6)
G	PF00266	e8a5wG1	A: a/b three-layered sandwiches	X: PLP-dependent transferases (From Topology)	H: PLP-dependent transferases (From Topology)	T: PLP-dependent transferases	F: PF00266	ECOD (1.6)
H	PF00266	e8a5wH2	A: a+b two layers	X: C-terminal domain in some PLP-dependent transferases (From Topology)	H: C-terminal domain in some PLP-dependent transferases (From Topology)	T: C-terminal domain in some PLP-dependent transferases	F: PF00266	ECOD (1.6)
H	PF00266	e8a5wH1	A: a/b three-layered sandwiches	X: PLP-dependent transferases (From Topology)	H: PLP-dependent transferases (From Topology)	T: PLP-dependent transferases	F: PF00266	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth D], E [auth F], F [auth A]	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
B [auth E]	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
C, D [auth B], G, H	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 [auth D], E [auth F], F [auth A]	Phosphoserine aminotransferase	vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding binding organic cyclic compound binding anion binding heterocyclic compound binding small molecule binding transferase activity, transferring nitrogenous groups transaminase activity transferase activity catalytic activity O-phospho-L-serine:2-oxoglutarate aminotransferase activity vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding binding organic cyclic compound binding anion binding heterocyclic compound binding small molecule binding transferase activity, transferring nitrogenous groups transaminase activity transferase activity catalytic activity O-phospho-L-serine:2-oxoglutarate aminotransferase activity identical protein binding protein binding	cellular biosynthetic process organic hydroxy compound metabolic process organonitrogen compound biosynthetic process vitamin biosynthetic process pyridoxine biosynthetic process organic substance metabolic process organic substance biosynthetic process pyridine-containing compound metabolic process small molecule metabolic process water-soluble vitamin metabolic process vitamin B6 biosynthetic process organonitrogen compound metabolic process water-soluble vitamin biosynthetic process small molecule biosynthetic process cellular biosynthetic process organic hydroxy compound metabolic process organonitrogen compound biosynthetic process vitamin biosynthetic process pyridoxine biosynthetic process organic substance metabolic process organic substance biosynthetic process pyridine-containing compound metabolic process small molecule metabolic process water-soluble vitamin metabolic process vitamin B6 biosynthetic process organonitrogen compound metabolic process water-soluble vitamin biosynthetic process small molecule biosynthetic process cellular metabolic process pyridine-containing compound biosynthetic process vitamin metabolic process organic cyclic compound metabolic process pyridoxine metabolic process biosynthetic process organic hydroxy compound biosynthetic process organic cyclic compound biosynthetic process metabolic process vitamin B6 metabolic process cellular process serine family amino acid metabolic process oxoacid metabolic process amino acid metabolic process organic acid metabolic process organic acid biosynthetic process alpha-amino acid metabolic process carboxylic acid biosynthetic process carboxylic acid metabolic process primary metabolic process L-amino acid biosynthetic process L-serine metabolic process L-serine biosynthetic process L-amino acid metabolic process proteinogenic amino acid metabolic process amino acid biosynthetic process proteinogenic amino acid biosynthetic process serine family amino acid biosynthetic process alpha-amino acid biosynthetic process	extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space cellular anatomical entity vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol
B [auth E]	Phosphoserine aminotransferase	vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding binding organic cyclic compound binding anion binding heterocyclic compound binding small molecule binding transferase activity, transferring nitrogenous groups transaminase activity transferase activity catalytic activity O-phospho-L-serine:2-oxoglutarate aminotransferase activity vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding binding organic cyclic compound binding anion binding heterocyclic compound binding small molecule binding transferase activity, transferring nitrogenous groups transaminase activity transferase activity catalytic activity O-phospho-L-serine:2-oxoglutarate aminotransferase activity identical protein binding protein binding	cellular biosynthetic process organic hydroxy compound metabolic process organonitrogen compound biosynthetic process vitamin biosynthetic process pyridoxine biosynthetic process organic substance metabolic process organic substance biosynthetic process pyridine-containing compound metabolic process small molecule metabolic process water-soluble vitamin metabolic process vitamin B6 biosynthetic process organonitrogen compound metabolic process water-soluble vitamin biosynthetic process small molecule biosynthetic process cellular biosynthetic process organic hydroxy compound metabolic process organonitrogen compound biosynthetic process vitamin biosynthetic process pyridoxine biosynthetic process organic substance metabolic process organic substance biosynthetic process pyridine-containing compound metabolic process small molecule metabolic process water-soluble vitamin metabolic process vitamin B6 biosynthetic process organonitrogen compound metabolic process water-soluble vitamin biosynthetic process small molecule biosynthetic process cellular metabolic process pyridine-containing compound biosynthetic process vitamin metabolic process organic cyclic compound metabolic process pyridoxine metabolic process biosynthetic process organic hydroxy compound biosynthetic process organic cyclic compound biosynthetic process metabolic process vitamin B6 metabolic process cellular process serine family amino acid metabolic process oxoacid metabolic process amino acid metabolic process organic acid metabolic process organic acid biosynthetic process alpha-amino acid metabolic process carboxylic acid biosynthetic process carboxylic acid metabolic process primary metabolic process L-amino acid biosynthetic process L-serine metabolic process L-serine biosynthetic process L-amino acid metabolic process proteinogenic amino acid metabolic process amino acid biosynthetic process proteinogenic amino acid biosynthetic process serine family amino acid biosynthetic process alpha-amino acid biosynthetic process	extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space cellular anatomical entity vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol
C, D [auth B], G, H	Phosphoserine aminotransferase	vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding binding organic cyclic compound binding anion binding heterocyclic compound binding small molecule binding transferase activity, transferring nitrogenous groups transaminase activity transferase activity catalytic activity O-phospho-L-serine:2-oxoglutarate aminotransferase activity vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding binding organic cyclic compound binding anion binding heterocyclic compound binding small molecule binding transferase activity, transferring nitrogenous groups transaminase activity transferase activity catalytic activity O-phospho-L-serine:2-oxoglutarate aminotransferase activity identical protein binding protein binding	cellular biosynthetic process organic hydroxy compound metabolic process organonitrogen compound biosynthetic process vitamin biosynthetic process pyridoxine biosynthetic process organic substance metabolic process organic substance biosynthetic process pyridine-containing compound metabolic process small molecule metabolic process water-soluble vitamin metabolic process vitamin B6 biosynthetic process organonitrogen compound metabolic process water-soluble vitamin biosynthetic process small molecule biosynthetic process cellular biosynthetic process organic hydroxy compound metabolic process organonitrogen compound biosynthetic process vitamin biosynthetic process pyridoxine biosynthetic process organic substance metabolic process organic substance biosynthetic process pyridine-containing compound metabolic process small molecule metabolic process water-soluble vitamin metabolic process vitamin B6 biosynthetic process organonitrogen compound metabolic process water-soluble vitamin biosynthetic process small molecule biosynthetic process cellular metabolic process pyridine-containing compound biosynthetic process vitamin metabolic process organic cyclic compound metabolic process pyridoxine metabolic process biosynthetic process organic hydroxy compound biosynthetic process organic cyclic compound biosynthetic process metabolic process vitamin B6 metabolic process cellular process serine family amino acid metabolic process oxoacid metabolic process amino acid metabolic process organic acid metabolic process organic acid biosynthetic process alpha-amino acid metabolic process carboxylic acid biosynthetic process carboxylic acid metabolic process primary metabolic process L-amino acid biosynthetic process L-serine metabolic process L-serine biosynthetic process L-amino acid metabolic process proteinogenic amino acid metabolic process amino acid biosynthetic process proteinogenic amino acid biosynthetic process serine family amino acid biosynthetic process alpha-amino acid biosynthetic process	extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space cellular anatomical entity vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

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

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth D], E [auth F], F [auth A]	Pharos: Q9Y617	PSAT deficiency non-small cell lung carcinoma Neu-Laxova syndrome 2 Neu-Laxova syndrome Neu-Laxova syndrome 1 lung adenocarcinoma malignant ependymoma medulloblastoma ovarian cancer Adenocarcinoma of Lung pilocytic astrocytoma atypical teratoid rhabdoid tumor psoriasis ulcerative colitis exocrine pancreatic carcinoma PSAT deficiency non-small cell lung carcinoma Neu-Laxova syndrome 2 Neu-Laxova syndrome Neu-Laxova syndrome 1 lung adenocarcinoma malignant ependymoma medulloblastoma ovarian cancer Adenocarcinoma of Lung pilocytic astrocytoma atypical teratoid rhabdoid tumor psoriasis ulcerative colitis exocrine pancreatic carcinoma hepatocellular carcinoma leukodystrophy lung carcinoma malignant mesothelioma myelodysplastic syndrome oligodendroglioma pancreatic ductal adenocarcinoma adrenoleukodystrophy polycystic ovary syndrome Crohn disease schizophrenia Down syndrome gastric cancer intellectual disability malignant colon neoplasm malignant pancreatic neoplasm nasopharyngeal carcinoma osteosarcoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia attention deficit hyperactivity disorder, inattentive type cystic fibrosis subependymal giant cell astrocytoma gastric carcinoma large cell medulloblastoma lung cancer
B [auth E]	Pharos: Q9Y617	PSAT deficiency non-small cell lung carcinoma Neu-Laxova syndrome 2 Neu-Laxova syndrome Neu-Laxova syndrome 1 lung adenocarcinoma malignant ependymoma medulloblastoma ovarian cancer Adenocarcinoma of Lung pilocytic astrocytoma atypical teratoid rhabdoid tumor psoriasis ulcerative colitis exocrine pancreatic carcinoma PSAT deficiency non-small cell lung carcinoma Neu-Laxova syndrome 2 Neu-Laxova syndrome Neu-Laxova syndrome 1 lung adenocarcinoma malignant ependymoma medulloblastoma ovarian cancer Adenocarcinoma of Lung pilocytic astrocytoma atypical teratoid rhabdoid tumor psoriasis ulcerative colitis exocrine pancreatic carcinoma hepatocellular carcinoma leukodystrophy lung carcinoma malignant mesothelioma myelodysplastic syndrome oligodendroglioma pancreatic ductal adenocarcinoma adrenoleukodystrophy polycystic ovary syndrome Crohn disease schizophrenia Down syndrome gastric cancer intellectual disability malignant colon neoplasm malignant pancreatic neoplasm nasopharyngeal carcinoma osteosarcoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia attention deficit hyperactivity disorder, inattentive type cystic fibrosis subependymal giant cell astrocytoma gastric carcinoma large cell medulloblastoma lung cancer
C, D [auth B], G, H	Pharos: Q9Y617	PSAT deficiency non-small cell lung carcinoma Neu-Laxova syndrome 2 Neu-Laxova syndrome Neu-Laxova syndrome 1 lung adenocarcinoma malignant ependymoma medulloblastoma ovarian cancer Adenocarcinoma of Lung pilocytic astrocytoma atypical teratoid rhabdoid tumor psoriasis ulcerative colitis exocrine pancreatic carcinoma PSAT deficiency non-small cell lung carcinoma Neu-Laxova syndrome 2 Neu-Laxova syndrome Neu-Laxova syndrome 1 lung adenocarcinoma malignant ependymoma medulloblastoma ovarian cancer Adenocarcinoma of Lung pilocytic astrocytoma atypical teratoid rhabdoid tumor psoriasis ulcerative colitis exocrine pancreatic carcinoma hepatocellular carcinoma leukodystrophy lung carcinoma malignant mesothelioma myelodysplastic syndrome oligodendroglioma pancreatic ductal adenocarcinoma adrenoleukodystrophy polycystic ovary syndrome Crohn disease schizophrenia Down syndrome gastric cancer intellectual disability malignant colon neoplasm malignant pancreatic neoplasm nasopharyngeal carcinoma osteosarcoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia attention deficit hyperactivity disorder, inattentive type cystic fibrosis subependymal giant cell astrocytoma gastric carcinoma large cell medulloblastoma lung cancer

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
C, D [auth B], G, H	LLP	Parent Component: LYS RESID: AA0119 PSI-MOD : N6-pyridoxal phosphate-L-lysine MOD:00128

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 R01GM133198.