1EQB

X-RAY CRYSTAL STRUCTURE AT 2.7 ANGSTROMS RESOLUTION OF TERNARY COMPLEX BETWEEN THE Y65F MUTANT OF E-COLI SERINE HYDROXYMETHYLTRANSFERASE, GLYCINE AND 5-FORMYL TETRAHYDROFOLATE

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

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1eqba_	Alpha and beta proteins (a/b)	PLP-dependent transferase-like	PLP-dependent transferases	GABA-aminotransferase-like	Serine hydroxymethyltransferase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
B	d1eqbb_	Alpha and beta proteins (a/b)	PLP-dependent transferase-like	PLP-dependent transferases	GABA-aminotransferase-like	Serine hydroxymethyltransferase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
C	d1eqbc_	Alpha and beta proteins (a/b)	PLP-dependent transferase-like	PLP-dependent transferases	GABA-aminotransferase-like	Serine hydroxymethyltransferase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
D	d1eqbd_	Alpha and beta proteins (a/b)	PLP-dependent transferase-like	PLP-dependent transferases	GABA-aminotransferase-like	Serine hydroxymethyltransferase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	PLP-dependent transferases	8032404	3000954	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	PLP-dependent transferases	8032404	3000954	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	PLP-dependent transferases	8032404	3000954	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	PLP-dependent transferases	8032404	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	PF00464	e1eqbA2	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: PF00464	ECOD (1.6)
A	PF00464	e1eqbA3	A: a/b three-layered sandwiches	X: PLP-dependent transferases (From Topology)	H: PLP-dependent transferases (From Topology)	T: PLP-dependent transferases	F: PF00464	ECOD (1.6)
B	PF00464	e1eqbB2	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: PF00464	ECOD (1.6)
B	PF00464	e1eqbB3	A: a/b three-layered sandwiches	X: PLP-dependent transferases (From Topology)	H: PLP-dependent transferases (From Topology)	T: PLP-dependent transferases	F: PF00464	ECOD (1.6)
C	PF00464	e1eqbC2	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: PF00464	ECOD (1.6)
C	PF00464	e1eqbC3	A: a/b three-layered sandwiches	X: PLP-dependent transferases (From Topology)	H: PLP-dependent transferases (From Topology)	T: PLP-dependent transferases	F: PF00464	ECOD (1.6)
D	PF00464	e1eqbD2	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: PF00464	ECOD (1.6)
D	PF00464	e1eqbD3	A: a/b three-layered sandwiches	X: PLP-dependent transferases (From Topology)	H: PLP-dependent transferases (From Topology)	T: PLP-dependent transferases	F: PF00464	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
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)
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)
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)
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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF00464	Serine hydroxymethyltransferase (SHMT)	Serine hydroxymethyltransferase	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	SERINE HYDROXYMETHYLTRANSFERASE	threonine aldolase activity L-allo-threonine aldolase activity lyase activity catalytic activity carbon-carbon lyase activity aldehyde-lyase activity identical protein binding protein binding binding protein homodimerization activity protein dimerization activity vitamin binding vitamin B6 binding pyridoxal phosphate binding threonine aldolase activity L-allo-threonine aldolase activity lyase activity catalytic activity carbon-carbon lyase activity aldehyde-lyase activity identical protein binding protein binding binding protein homodimerization activity protein dimerization activity vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding organic cyclic compound binding anion binding heterocyclic compound binding small molecule binding cation binding organic acid binding serine binding amino acid binding carboxylic acid binding transferase activity, transferring one-carbon groups glycine hydroxymethyltransferase activity transferase activity hydroxymethyl-, formyl- and related transferase activity transition metal ion binding zinc ion binding metal ion binding	cellular metabolic process small molecule metabolic process metabolic process cellular process one-carbon metabolic process organic cyclic compound metabolic process organic substance metabolic process organonitrogen compound metabolic process folic acid-containing compound metabolic process tetrahydrofolate metabolic process pteridine-containing compound metabolic process cellular modified amino acid metabolic process oxoacid metabolic process dicarboxylic acid metabolic process cellular metabolic process small molecule metabolic process metabolic process cellular process one-carbon metabolic process organic cyclic compound metabolic process organic substance metabolic process organonitrogen compound metabolic process folic acid-containing compound metabolic process tetrahydrofolate metabolic process pteridine-containing compound metabolic process cellular modified amino acid metabolic process oxoacid metabolic process dicarboxylic acid metabolic process carboxylic acid metabolic process organic acid metabolic process vitamin metabolic process amide metabolic process water-soluble vitamin metabolic process folic acid metabolic process tetrahydrofolate interconversion catabolic process serine family amino acid metabolic process amino acid metabolic process organic acid catabolic process L-serine catabolic process alpha-amino acid metabolic process cellular catabolic process carboxylic acid catabolic process amino acid catabolic process organonitrogen compound catabolic process L-amino acid catabolic process primary metabolic process L-serine metabolic process L-amino acid metabolic process proteinogenic amino acid metabolic process serine family amino acid catabolic process alpha-amino acid catabolic process proteinogenic amino acid catabolic process small molecule catabolic process organic substance catabolic process cellular biosynthetic process organonitrogen compound biosynthetic process organic acid biosynthetic process carboxylic acid biosynthetic process glycine metabolic process glycine biosynthetic process organic substance biosynthetic process glycine biosynthetic process from serine small molecule biosynthetic process L-amino acid biosynthetic process amino acid biosynthetic process biosynthetic process proteinogenic amino acid biosynthetic process serine family amino acid biosynthetic process alpha-amino acid biosynthetic process L-serine biosynthetic process glycine catabolic process	membrane cellular anatomical entity intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
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	IPR039429	Serine hydroxymethyltransferase-like domain	Domain
A, B, C, D	IPR001085	Serine hydroxymethyltransferase	Family
A, B, C, D	IPR015424	Pyridoxal phosphate-dependent transferase	Homologous Superfamily
A, B, C, D	IPR019798	Serine hydroxymethyltransferase, pyridoxal phosphate binding site	Binding Site

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.