MetaCyc Enzyme: zinc-binding GTPase

Gene: yeiR Accession Numbers: EG12104 (MetaCyc), b2173, ECK2167

Species: Escherichia coli K-12 substr. MG1655

YeiR belongs to the G3E family of P-loop GTPases. The protein binds Zn2+ in vitro; metal binding leads to oligomerization and enhances its GTPase activity. A yeiR deletion mutant shows increased sensitivity to the metal chelator EDTA [BlabyHaas12].

Locations: cytosol

Map Position: [2,265,851 -> 2,266,837]

Molecular Weight of Polypeptide: 36.113 kD (from nucleotide sequence)

Unification Links: ASAP:ABE-0007194 , DIP:DIP-11929N , EchoBASE:EB2028 , EcoGene:EG12104 , EcoliWiki:b2173 , Mint:MINT-1231253 , ModBase:P33030 , OU-Microarray:b2173 , PortEco:yeiR , Pride:P33030 , Protein Model Portal:P33030 , RefSeq:NP_416678 , RegulonDB:EG12104 , SMR:P33030 , String:511145.b2173 , Swiss-Model:P33030 , UniProt:P33030

Relationship Links: InterPro:IN-FAMILY:IPR003495 , InterPro:IN-FAMILY:IPR011629 , InterPro:IN-FAMILY:IPR027417 , Pfam:IN-FAMILY:PF02492 , Pfam:IN-FAMILY:PF07683 , Smart:IN-FAMILY:SM00833

Gene-Reaction Schematic: ?

Gene-Reaction Schematic

GO Terms:

Biological Process: GO:0008152 - metabolic process Inferred from experiment [BlabyHaas12]
Molecular Function: GO:0003924 - GTPase activity Inferred from experiment [BlabyHaas12]
GO:0008270 - zinc ion binding Inferred from experiment [BlabyHaas12]
Cellular Component: GO:0005829 - cytosol Inferred by computational analysis [DiazMejia09]


Imported from EcoCyc 02-Jun-2015 by Paley S , SRI International

Enzymatic reaction of: GTPase

EC Number:

GTP + H2O <=> GDP + phosphate + H+

The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the direction in which it was curated.

The reaction is physiologically favored in the direction shown.

Imported from EcoCyc 02-Jun-2015 by Paley S , SRI International

Activators (Unknown Mechanism): Zn2+ [BlabyHaas12]

Kinetic Parameters:

Km (μM)
kcat (sec-1)
kcat/Km (sec-1 μM-1)

Sequence Features

Feature Class Location Citations Comment
Sequence-Conflict 103 -> 105
[Richterich93, UniProt15]
UniProt: (in Ref. 4; AAA60521).
Conserved-Region 240 -> 323
UniProt: CobW C-terminal;
Sequence-Conflict 285 -> 328
[Itoh96, UniProt10a]
UniProt: (in Ref. 1);

Peter D. Karp on Thu Jan 16, 2003:
Predicted gene function revised as a result of E. coli genome reannotation by Serres et al. [Serres01 ].
10/20/97 Gene b2173 from Blattner lab Genbank (v. M52) entry merged into EcoCyc gene EG12104; confirmed by SwissProt match.


BlabyHaas12: Blaby-Haas CE, Flood JA, Crecy-Lagard Vd, Zamble DB (2012). "YeiR: a metal-binding GTPase from Escherichia coli involved in metal homeostasis." Metallomics 4(5);488-97. PMID: 22511334

DiazMejia09: Diaz-Mejia JJ, Babu M, Emili A (2009). "Computational and experimental approaches to chart the Escherichia coli cell-envelope-associated proteome and interactome." FEMS Microbiol Rev 33(1);66-97. PMID: 19054114

Itoh96: Itoh T, Aiba H, Baba T, Hayashi K, Inada T, Isono K, Kasai H, Kimura S, Kitakawa M, Kitagawa M, Makino K, Miki T, Mizobuchi K, Mori H, Mori T, Motomura K, Nakade S, Nakamura Y, Nashimoto H, Nishio Y, Oshima T, Saito N, Sampei G, Seki Y, Horiuchi T (1996). "A 460-kb DNA sequence of the Escherichia coli K-12 genome corresponding to the 40.1-50.0 min region on the linkage map." DNA Res 3(6);379-92. PMID: 9097040

Richterich93: Richterich P., Lakey N., Gryan G., Jaehn L., Mintz L., Robison K., Church G.M. (1993). "Automated multiplex sequencing of the E.coli genome." Data submission to EMBL/GenBank/DDBJ databases on 1993-10.

Serres01: Serres MH, Gopal S, Nahum LA, Liang P, Gaasterland T, Riley M (2001). "A functional update of the Escherichia coli K-12 genome." Genome Biol 2(9);RESEARCH0035. PMID: 11574054

UniProt09: UniProt Consortium (2009). "UniProt version 15.8 released on 2009-10-01 00:00:00." Database.

UniProt10a: UniProt Consortium (2010). "UniProt version 2010-11 released on 2010-11-02 00:00:00." Database.

UniProt15: UniProt Consortium (2015). "UniProt version 2015-01 released on 2015-01-16 00:00:00." Database.

Report Errors or Provide Feedback
Please cite the following article in publications resulting from the use of MetaCyc: Caspi et al, Nucleic Acids Research 42:D459-D471 2014
Page generated by SRI International Pathway Tools version 19.0 on Tue Oct 6, 2015, biocyc13.