MetQ

• Description: methionine ABC transporter (binding lipoprotein)
  
  

Gene name	metQ
Synonyms	yusA
Essential	no
Product	methionine ABC transporter (binding lipoprotein)
Function	methionine uptake
Gene expression levels in SubtiExpress: metQ
Interactions involving this protein in SubtInteract: MetQ
Metabolic function and regulation of this protein in SubtiPathways: Cys, Met & Sulfate assimilation
MW, pI	30 kDa, 8.493
Gene length, protein length	822 bp, 274 aa
Immediate neighbours	yurZ, metP
Sequences	Protein DNA DNA_with_flanks
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

Categories containing this gene/protein

ABC transporters, biosynthesis/ acquisition of amino acids, membrane proteins

This gene is a member of the following regulons

CodY regulon, S-box

The gene

Basic information

• Locus tag: BSU32730

Database entries

• DBTBS entry: no entry

• SubtiList entry: [1]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family:

• Paralogous protein(s): YhcJ

Extended information on the protein

• Kinetic information:
  • K(D) for Met: 3.8 myM PubMed

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:
  • MetN-MetP-MetQ PubMed
  • McpC-MetQ, for chemotaxis to methionine PubMed

• Localization:
  • associated to the cell membrane, via MetP PubMed
  • extracellular (signal peptide) PubMed, lipid modification as retention signal

Database entries

• Structure:

• UniProt: O32167

• KEGG entry: [2]

• E.C. number:

Expression and regulation

• Operon: metN-metP-metQ PubMed

• Expression browser: metQ PubMed

• Sigma factor:

• Regulation:
  • activated during growth in the presence of branched chain amino acids (CodY) PubMed
  • induced by methionine starvation (S-box) PubMed

• Regulatory mechanism:
  • S-box: transcription termination/ antitermination, the S-box riboswitch binds S-adenosylmethionine resulting in termination PubMed
  • CodY: transcription activation PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

George D Glekas, Brendan J Mulhern, Abigail Kroc, Keegan A Duelfer, Victor Lei, Christopher V Rao, George W Ordal
The Bacillus subtilis chemoreceptor McpC senses multiple ligands using two discrete mechanisms.
J Biol Chem: 2012, 287(47);39412-8
[PubMed:23038252] [WorldCat.org] [DOI] (I p)

Birgit Voigt, Haike Antelmann, Dirk Albrecht, Armin Ehrenreich, Karl-Heinz Maurer, Stefan Evers, Gerhard Gottschalk, Jan Maarten van Dijl, Thomas Schweder, Michael Hecker
Cell physiology and protein secretion of Bacillus licheniformis compared to Bacillus subtilis.
J Mol Microbiol Biotechnol: 2009, 16(1-2);53-68
[PubMed:18957862] [WorldCat.org] [DOI] (I p)

Hannes Hahne, Susanne Wolff, Michael Hecker, Dörte Becher
From complementarity to comprehensiveness--targeting the membrane proteome of growing Bacillus subtilis by divergent approaches.
Proteomics: 2008, 8(19);4123-36
[PubMed:18763711] [WorldCat.org] [DOI] (I p)

Jerneja Tomsic, Brooke A McDaniel, Frank J Grundy, Tina M Henkin
Natural variability in S-adenosylmethionine (SAM)-dependent riboswitches: S-box elements in bacillus subtilis exhibit differential sensitivity to SAM In vivo and in vitro.
J Bacteriol: 2008, 190(3);823-33
[PubMed:18039762] [WorldCat.org] [DOI] (I p)

Marie-Françoise Hullo, Sandrine Auger, Elie Dassa, Antoine Danchin, Isabelle Martin-Verstraete
The metNPQ operon of Bacillus subtilis encodes an ABC permease transporting methionine sulfoxide, D- and L-methionine.
Res Microbiol: 2004, 155(2);80-6
[PubMed:14990259] [WorldCat.org] [DOI] (P p)

Virginie Molle, Yoshiko Nakaura, Robert P Shivers, Hirotake Yamaguchi, Richard Losick, Yasutaro Fujita, Abraham L Sonenshein
Additional targets of the Bacillus subtilis global regulator CodY identified by chromatin immunoprecipitation and genome-wide transcript analysis.
J Bacteriol: 2003, 185(6);1911-22
[PubMed:12618455] [WorldCat.org] [DOI] (P p)

F J Grundy, T M Henkin
The S box regulon: a new global transcription termination control system for methionine and cysteine biosynthesis genes in gram-positive bacteria.
Mol Microbiol: 1998, 30(4);737-49
[PubMed:10094622] [WorldCat.org] [DOI] (P p)

Y Quentin, G Fichant, F Denizot
Inventory, assembly and analysis of Bacillus subtilis ABC transport systems.
J Mol Biol: 1999, 287(3);467-84
[PubMed:10092453] [WorldCat.org] [DOI] (P p)