Reviewed, UniProtKB/Swiss-Prot Q58540 (COMB_METJA)

Names and origin

Protein names

Recommended name:
    2-phosphosulfolactate phosphatase
    EC=3.1.3.71

Gene names

Name:	comB
Ordered Locus Names:	MJ1140

Organism

Methanocaldococcus jannaschii (Methanococcus jannaschii) [Complete proteome] [HAMAP]

Taxonomic identifier

2190 [NCBI]

Taxonomic lineage

Archaea › Euryarchaeota › Methanococci › Methanococcales › Methanocaldococcaceae › Methanocaldococcus

Protein attributes

Sequence length	224 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Evidence at protein level.

General annotation (Comments)

Function	Hydrolyzes both enantiomers of 2-phosphosulfolactate. Able to hydrolyze both enantiomers of 2-hydroxycarboxylic acids with pseudosymmetric centers of inversion. Specifically hydrolyzes (S)-phospholactate and (S)-phosphoglycerate. HAMAP MF_00490
Catalytic activity	(2R)-2-phospho-3-sulfolactate + H2O = (2R)-3-sulfolactate + phosphate. HAMAP MF_00490
Cofactor	Magnesium. HAMAP MF_00490
Enzyme regulation	Inhibited by vanadate. HAMAP MF_00490
Pathway	Cofactor biosynthesis; coenzyme M biosynthesis; sulfoacetaldehyde from PEP and sulfite: step 2/4. HAMAP MF_00490
Subunit structure	Monomer. HAMAP MF_00490
Sequence similarities	Belongs to the comB family.
Biophysicochemical properties	pH dependence: Optimum pH is 5.5. HAMAP MF_00490 Temperature dependence: Optimum temperature is 75 degrees Celsius.

Ontologies

Keywords
Biological process	Coenzyme M biosynthesis
Ligand	Magnesium
Molecular function	Hydrolase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	coenzyme M biosynthetic process Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	2-phosphosulfolactate phosphatase activity Inferred from electronic annotation. Source: HAMAP magnesium ion binding Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 224	224	2-phosphosulfolactate phosphatase HAMAP MF_00490		PRO_0000081459

Sequences

	Sequence		Length	Mass (Da)
	Q58540-1 [UniParc]. Last modified December 5, 2001. Version 2. Checksum: B981C5B5635404E9	FASTA	224	25,114
	10 20 30 40 50 60 MITLCNRFTE YKCGNVAIVV DVLRASTTIT TLLSFIDEVY ITTSTSKKEN AIYIGERKGR 70 80 90 100 110 120 KIEGFDFGNS PTEILANKDI IKERYENGEK VILTTTNGTR VLKSLDAEHI FIGAIVNAKY 130 140 150 160 170 180 VAKAVEDFED VSLVPCHREN NFAIDDFIGC GVIAKYLNGE FDEFIKAALE LTKHDWMSLI 190 200 210 220 LNSSSAENLK NLGYEKDVTF AILENSIDAV GIYKKDKSKV VRFK

References

	« Hide 'large scale' referencesShow 'large scale' references »
[1]	"Complete genome sequence of the methanogenic archaeon, Methanococcus jannaschii." Bult C.J., White O., Olsen G.J., Zhou L., Fleischmann R.D., Sutton G.G., Blake J.A., FitzGerald L.M., Clayton R.A., Gocayne J.D., Kerlavage A.R., Dougherty B.A., Tomb J.-F., Adams M.D., Reich C.I., Overbeek R., Kirkness E.F., Weinstock K.G. , Merrick J.M., Glodek A., Scott J.L., Geoghagen N.S.M., Weidman J.F., Fuhrmann J.L., Nguyen D., Utterback T.R., Kelley J.M., Peterson J.D., Sadow P.W., Hanna M.C., Cotton M.D., Roberts K.M., Hurst M.A., Kaine B.P., Borodovsky M., Klenk H.-P., Fraser C.M., Smith H.O., Woese C.R., Venter J.C. Science 273:1058-1073(1996) [PubMed: 8688087] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440.
[2]	"Identification of coenzyme M biosynthetic 2-phosphosulfolactate phosphatase. A member of a new class of Mg2+-dependent acid phosphatases." Graham D.E., Graupner M., Xu H., White R.H. Eur. J. Biochem. 268:5176-5188(2001) [PubMed: 11589710] [Abstract] Cited for: CHARACTERIZATION. Strain: ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440.

Cross-references

Sequence databases
EMBLGenBankDDBJ	L77117 Genomic DNA. Translation: AAB99140.1. Different initiation.
PIR	C64442.
RefSeq	NP_248132.1.
3D structure databases
ModBase	Search...
Genome annotation databases
GeneID	1452036.
GenomeReviews	Gene locus MJ1140 in contig L77117_GR.
KEGG	mja:MJ1140.
NMPDR	fig|243232.1.peg.1169.
TIGR	MJ1140.
Phylogenomic databases
HOGENOM	Q58540.
Enzyme and pathway databases
BioCyc	MetaCyc:MON-2263. MJAN243232:MJ_1140-MON.
BRENDA	3.1.3.71. 256362.
Family and domain databases
HAMAP	MF_00490. [Tree]
InterPro	IPR005238. 2-PSlactate_phosphatase. [Graphical view]
Gene3D	G3DSA:3.90.1560.10. 2-PSlactate_phosphatase. 1 hit.
Pfam	PF04029. 2-ph_phosp. 1 hit. [Graphical view]
TIGRFAMs	TIGR00298. 2-ph_phosphatase. 1 hit.
ProtoNet	Search...

Entry information

Entry name

COMB_METJA

Accession

Primary (citable) accession number: Q58540

Entry history

Integrated into UniProtKB/Swiss-Prot:	December 5, 2001
Last sequence update:	December 5, 2001
Last modified:	June 16, 2009
This is version 55 of the entry and version 2 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

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