6C2Q

Crystal Structures of Cystathionine beta-Synthase from Saccharomyces cerevisiae: the Structure of the PLP-L-Serine Intermediate

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	d6c2qa_	Alpha and beta proteins (a/b)	Tryptophan synthase beta subunit-like PLP-dependent enzymes	Tryptophan synthase beta subunit-like PLP-dependent enzymes	automated matches	automated matches	Baker's yeast (Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Tryptophan synthase beta subunit-like PLP-dependent enzymes	8074227	3001427	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	PALP	e6c2qA1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Tryptophan synthase beta subunit-like PLP-dependent enzymes (From Topology)	T: Tryptophan synthase beta subunit-like PLP-dependent enzymes	F: PALP	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.1100	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00291	Pyridoxal-phosphate dependent enzyme (PALP)	Pyridoxal-phosphate dependent enzyme	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Cystathionine beta-synthase	RNA binding binding organic cyclic compound binding nucleic acid binding mRNA binding cystathionine beta-synthase activity hydro-lyase activity lyase activity catalytic activity carbon-oxygen lyase activity	homocysteine metabolic process serine family amino acid metabolic process oxoacid metabolic process sulfur amino acid metabolic process cellular metabolic process carboxylic acid metabolic process amino acid metabolic process primary metabolic process organic acid metabolic process transsulfuration alpha-amino acid metabolic process L-amino acid metabolic process cysteine metabolic process non-proteinogenic amino acid metabolic process proteinogenic amino acid metabolic process homocysteine metabolic process serine family amino acid metabolic process oxoacid metabolic process sulfur amino acid metabolic process cellular metabolic process carboxylic acid metabolic process amino acid metabolic process primary metabolic process organic acid metabolic process transsulfuration alpha-amino acid metabolic process L-amino acid metabolic process cysteine metabolic process non-proteinogenic amino acid metabolic process proteinogenic amino acid metabolic process metabolic process small molecule metabolic process cellular process sulfur compound metabolic process homoserine metabolic process cellular biosynthetic process cysteine biosynthetic process via cystathionine organic acid biosynthetic process carboxylic acid biosynthetic process cysteine biosynthetic process small molecule biosynthetic process L-amino acid biosynthetic process amino acid biosynthetic process sulfur compound biosynthetic process biosynthetic process proteinogenic amino acid biosynthetic process serine family amino acid biosynthetic process sulfur amino acid biosynthetic process alpha-amino acid biosynthetic process hydrogen sulfide biosynthetic process hydrogen sulfide metabolic process regulation of cell cycle phase transition regulation of cellular process traversing start control point of mitotic cell cycle positive regulation of biological process cell cycle phase transition regulation of cell cycle G1/S phase transition cell cycle G1/S phase transition mitotic cell cycle regulation of mitotic cell cycle positive regulation of mitotic cell cycle phase transition positive regulation of cell cycle process positive regulation of mitotic cell cycle cell cycle regulation of cell cycle positive regulation of cellular process cell cycle process positive regulation of G1/S transition of mitotic cell cycle regulation of biological process regulation of cell cycle process biological regulation positive regulation of cell cycle regulation of mitotic cell cycle phase transition positive regulation of cell cycle G1/S phase transition mitotic cell cycle process regulation of G1/S transition of mitotic cell cycle positive regulation of cell cycle phase transition G1/S transition of mitotic cell cycle mitotic cell cycle phase transition cysteine biosynthetic process from serine L-serine metabolic process	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle cytoplasmic ribonucleoprotein granule ribonucleoprotein granule intracellular non-membrane-bounded organelle supramolecular complex non-membrane-bounded organelle cytoplasmic stress granule

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR046342	CBS domain superfamily	Homologous Superfamily
A	IPR036052	Tryptophan synthase beta chain-like, PALP domain superfamily	Homologous Superfamily
A	IPR005857	Cystathionine beta-synthase	Family
A	IPR001216	Cysteine synthase/cystathionine beta-synthase, pyridoxal-phosphate attachment site	Binding Site
A	IPR050214	Cysteine synthase/Cystathionine beta-synthase	Family
A	IPR001926	Tryptophan synthase beta chain-like, PALP domain	Domain
A	IPR000644	CBS domain	Domain
A	IPR046353	Cystathionine beta-synthase, C-terminal domain	Domain

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.