Q8Q009 (CHEB1_METMA) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Chemotaxis response regulator protein-glutamate methylesterase of group 1 operon
EC=3.1.1.61

Gene names

Name:	cheB1
Ordered Locus Names:	MM_0329

Organism

Methanosarcina mazei (strain ATCC BAA-159 / DSM 3647 / Goe1 / Go1 / JCM 11833 / OCM 88) (Methanosarcina frisia) [Complete proteome] [HAMAP]

Taxonomic identifier

192952 [NCBI]

Taxonomic lineage

Archaea › Euryarchaeota › Methanomicrobia › Methanosarcinales › Methanosarcinaceae › Methanosarcina

Protein attributes

Sequence length	357 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Involved in the modulation of the chemotaxis system; catalyzes the demethylation of specific methylglutamate residues introduced into the chemoreceptors (methyl-accepting chemotaxis proteins) by CheR By similarity. HAMAP MF_00099
Catalytic activity	Protein L-glutamate O(5)-methyl ester + H2O = protein L-glutamate + methanol. HAMAP MF_00099
Subcellular location	Cytoplasm HAMAP MF_00099.
Domain	The N-terminal regulatory domain inhibits the activity of the C-terminal effector domain. HAMAP MF_00099
Post-translational modification	Phosphorylated by CheA. Phosphorylation suppresses the inhibitory activity of the N-terminal domain By similarity. HAMAP MF_00099
Sequence similarities	Contains 1 cheB-type methylesterase domain. Contains 1 response regulatory domain.

Ontologies

Keywords
Biological process	Chemotaxis
Cellular component	Cytoplasm
Molecular function	Hydrolase
PTM	Phosphoprotein
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	chemotaxis Inferred from electronic annotation. Source: UniProtKB-KW regulation of transcription, DNA-dependent Inferred from electronic annotation. Source: InterPro
Cellular component	cytoplasm Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	protein-glutamate methylesterase activity Inferred from electronic annotation. Source: EC two-component response regulator activity Inferred from electronic annotation. Source: InterPro
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 357	357	Chemotaxis response regulator protein-glutamate methylesterase of group 1 operon HAMAP MF_00099		PRO_0000158053
Regions
	Domain	10 – 127	118	Response regulatory
	Domain	159 – 353	195	CheB-type methylesterase
Sites
	Active site	171	1	By similarity
	Active site	198	1	By similarity
	Active site	295	1	By similarity
Amino acid modifications
	Modified residue	61	1	4-aspartylphosphate By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q8Q009 [UniParc]. Last modified October 1, 2002. Version 1. Checksum: 16FD4AF0D4EDF6B9	FASTA	357	38,425
	10 20 30 40 50 60 MNEFGDSMIR TLIVDDSAFM RMAIRSMLAS SPDIKIAGDA CNGKEAVDKS KSLHPDIIIM 70 80 90 100 110 120 DVNMPVMDGL TAVKTIMSTD PVPIIMFSTL TVEGSKEALE ALQLGAIDFV PKSESHHDVN 130 140 150 160 170 180 KIEKELVDKI RNIHSSNPSI LRLINMRKFK GEVVRGKWSC AGDFAVLIGS STGGPSSLEQ 190 200 210 220 230 240 VIPRLPGDLP APVFVVQHMP EGNFCKQLAE RLNFLSELEI KEARNNEKVT AGVVYIAPGG 250 260 270 280 290 300 YHMTVKKALG VTRIKLIKSQ PVHAVMPAVD VIAESMLDVY GKNIVAAILT GMGFDGAAGF 310 320 330 340 350 KKIRDAGGST IACSEDTCVI FGMPKAAIAA GGIDTVKPIF EIPEEIVRMS EVKCNGK

References

[1]

"The genome of Methanosarcina mazei: evidence for lateral gene transfer between Bacteria and Archaea." Deppenmeier U., Johann A., Hartsch T., Merkl R., Schmitz R.A., Martinez-Arias R., Henne A., Wiezer A., Baeumer S., Jacobi C., Brueggemann H., Lienard T., Christmann A., Boemecke M., Steckel S., Bhattacharyya A., Lykidis A., Overbeek R. , Klenk H.-P., Gunsalus R.P., Fritz H.-J., Gottschalk G. J. Mol. Microbiol. Biotechnol. 4:453-461(2002) [PubMed: 12125824] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC BAA-159 / DSM 3647 / Goe1 / Go1 / JCM 11833 / OCM 88.

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Additional computationally mapped references.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AE008384 Genomic DNA. Translation: AAM30025.1.
RefSeq	NP_632353.2. NC_003901.1.
3D structure databases
ProteinModelPortal	Q8Q009.
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	1478671.
GenomeReviews	Gene locus MM_0329 in contig AE008384_GR.
KEGG	mma:MM_0329.
NMPDR	fig|192952.1.peg.329.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	HBG705324.
OMA	ILIDEDM.
PhylomeDB	Q8Q009.
ProtClustDB	PRK00742.
Enzyme and pathway databases
BioCyc	MMAZ192952:MM0329-MONOMER.
Family and domain databases
HAMAP	MF_00099. CheB_methylest. [Tree]
InterPro	IPR011006. CheY-like_superfamily. IPR008248. Sig_transdc_resp-reg_CheB. IPR000673. Sig_transdc_resp-reg_Me-estase. IPR001789. Sig_transdc_resp-reg_receiver. [Graphical view]
Gene3D	G3DSA:3.40.50.180. Chemotax_RR_pGlu_Me-esterase. 1 hit.
KO	K03412.
Pfam	PF01339. CheB_methylest. 1 hit. PF00072. Response_reg. 1 hit. [Graphical view]
PIRSF	PIRSF000876. RR_chemtxs_CheB. 1 hit.
SMART	SM00448. REC. 1 hit. [Graphical view]
SUPFAM	SSF52738. Chemotax_RR_pGlu_Me-esterase. 1 hit. SSF52172. CheY_like. 1 hit.
PROSITE	PS50122. CHEB. 1 hit. PS50110. RESPONSE_REGULATORY. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

CHEB1_METMA

Accession

Primary (citable) accession number: Q8Q009

Entry history

Integrated into UniProtKB/Swiss-Prot:	July 19, 2004
Last sequence update:	October 1, 2002
Last modified:	December 14, 2011
This is version 60 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program