Reviewed, UniProtKB/Swiss-Prot Q8CMT6 (CYSK_STAES)

Names and origin

Protein names

Recommended name:
    Cysteine synthase
      Short name=CSase
    EC=2.5.1.47
Alternative name(s):
    O-acetylserine sulfhydrylase
    O-acetylserine (thiol)-lyase
      Short name=OAS-TL

Gene names

Name:	cysK
Ordered Locus Names:	SE_2270

Organism

Staphylococcus epidermidis (strain ATCC 12228) [Complete proteome] [HAMAP]

Taxonomic identifier

176280 [NCBI]

Taxonomic lineage

Bacteria › Firmicutes › Bacillales › Staphylococcus

Protein attributes

Sequence length	310 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Inferred from homology.

General annotation (Comments)

Catalytic activity	O(3)-acetyl-L-serine + H2S = L-cysteine + acetate.
Cofactor	Pyridoxal phosphate By similarity.
Pathway	Amino-acid biosynthesis; L-cysteine biosynthesis; L-cysteine from L-serine: step 2/2.
Subunit structure	Homodimer By similarity.
Sequence similarities	Belongs to the cysteine synthase/cystathionine beta-synthase family.

Ontologies

Keywords
Biological process	Amino-acid biosynthesis Cysteine biosynthesis
Ligand	Pyridoxal phosphate
Molecular function	Transferase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	cysteine biosynthetic process from serine Inferred from electronic annotation. Source: InterPro
Molecular function	cysteine synthase activity Inferred from electronic annotation. Source: EC pyridoxal phosphate binding Inferred from electronic annotation. Source: InterPro transferase activity Inferred from electronic annotation. Source: UniProtKB-KW
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 310	310	Cysteine synthase		PRO_0000167101
Regions
	Region	180 – 184	5	Pyridoxal phosphate binding By similarity
Sites
	Binding site	76	1	Pyridoxal phosphate By similarity
	Binding site	268	1	Pyridoxal phosphate By similarity
Amino acid modifications
	Modified residue	46	1	N6-(pyridoxal phosphate)lysine By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q8CMT6-1 [UniParc]. Last modified March 1, 2003. Version 1. Checksum: E231BA75F40A63EE	FASTA	310	33,152
	10 20 30 40 50 60 MAQKPVDYVT QIIGNTPVVK LRNVVDDDAA DIYVKLEYQN PGGSVKDRIA LAMIEKAERE 70 80 90 100 110 120 GKIKPGDTIV EPTSGNTGIG LAFVCAAKGY KAVFTMPETM SQERRNLLKA YGAELVLTPG 130 140 150 160 170 180 SEAMKGAIKK AKELKEEHGY FEPQQFENPA NPEIHELTTG PELVEQFEGR QIDAFLAGVG 190 200 210 220 230 240 TGGTLSGVGK VLKKEYPNVE IVAIEPEASP VLSGGEPGPH KLQGLGAGFV PDTLNTEVYD 250 260 270 280 290 300 SIIKVGNDTA MDMARRVARE EGILAGISSG AAIYAAIQKA KELGKGKTVV TVLPSNGERY 310 LSTPLYSFDN

References

[1]

"Genome-based analysis of virulence genes in a non-biofilm-forming Staphylococcus epidermidis strain (ATCC 12228)." Zhang Y.-Q., Ren S.-X., Li H.-L., Wang Y.-X., Fu G., Yang J., Qin Z.-Q., Miao Y.-G., Wang W.-Y., Chen R.-S., Shen Y., Chen Z., Yuan Z.-H., Zhao G.-P., Qu D., Danchin A., Wen Y.-M. Mol. Microbiol. 49:1577-1593(2003) [PubMed: 12950922] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBLGenBankDDBJ	AE015929 Genomic DNA. Translation: AAO05912.1.
RefSeq	NP_765825.1.
3D structure databases
HSSP	HSSP built from PDB template 1J6N based on UniProtKB Q9WZD3.
ModBase	Search...
Protein-protein interaction databases
STRING	Q8CMT6.
Genome annotation databases
GeneID	1056402.
GenomeReviews	Gene locus SE_2270 in contig AE015929_GR.
KEGG	sep:SE2270.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	Q8CMT6.
OMA	TVIYAVE.
Enzyme and pathway databases
BioCyc	SEPI176280:SE_2270-MON.
Family and domain databases
InterPro	IPR001216. Cys_synth_BS. IPR005856. Cys_synthKM. IPR005859. CysK. IPR001926. PyrdxlP-dep_enz_bsu. [Graphical view]
Pfam	PF00291. PALP. 1 hit. [Graphical view]
TIGRFAMs	TIGR01139. cysK. 1 hit. TIGR01136. cysKM. 1 hit.
PROSITE	PS00901. CYS_SYNTHASE. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

CYSK_STAES

Accession

Primary (citable) accession number: Q8CMT6

Entry history

Integrated into UniProtKB/Swiss-Prot:	November 28, 2003
Last sequence update:	March 1, 2003
Last modified:	November 3, 2009
This is version 45 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)