YxbA

• Description: putative D-aspartate ligase
  
  

Gene name	yxbA
Synonyms	yxaO, aslA
Essential	no
Product	putative D-aspartate ligase
Function	unknown
Metabolic function and regulation of this protein in SubtiPathways: Asp, Asn
MW, pI	10 kDa, 4.433
Gene length, protein length	267 bp, 89 aa
Immediate neighbours	yxbB, yxnB
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

Categories containing this gene/protein

poorly characterized/ putative enzymes

This gene is a member of the following regulons

AbrB regulon, CodY regulon

The gene

Basic information

• Locus tag: BSU39900

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family:

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:

Database entries

• Structure:

• UniProt: P46325

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon:
  • yxbB-yxbA-yxnB-asnH-yxaM PubMed
  • yxbB-yxbA-yxnB PubMed

• Expression browser: yxbA PubMed

• Sigma factor: SigA PubMed

• Regulation:
  • repressed by glucose (8-fold) PubMed
  • repressed during growth in the presence of branched chain amino acids (CodY) PubMed
  • repressed during logrithmic growth (AbrB) PubMed

• Regulatory mechanism:
  • CodY: transcription repression PubMed
  • AbrB: transcription repression PubMed

• Additional information:
  • the tricistronic yxbB-yxbA-yxnB transcript is extremely stable, and stability is mediated by a 5'-proximal long sequence triplication preceding the yxbB open reading frame PubMed

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Tetsuro Morinaga, Kazuo Kobayashi, Hitoshi Ashida, Yasutaro Fujita, Ken-Ichi Yoshida
Transcriptional regulation of the Bacillus subtilis asnH operon and role of the 5'-proximal long sequence triplication in RNA stabilization.
Microbiology (Reading): 2010, 156(Pt 6);1632-1641
[PubMed:20185509] [WorldCat.org] [DOI] (I p)

Mélanie A Hamon, Nicola R Stanley, Robert A Britton, Alan D Grossman, Beth A Lazazzera
Identification of AbrB-regulated genes involved in biofilm formation by Bacillus subtilis.
Mol Microbiol: 2004, 52(3);847-60
[PubMed:15101989] [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)

Ken-Ichi Yoshida, Izumi Ishio, Eishi Nagakawa, Yoshiyuki Yamamoto, Mami Yamamoto, Yasutaro Fujita
Systematic study of gene expression and transcription organization in the gntZ-ywaA region of the Bacillus subtilis genome.
Microbiology (Reading): 2000, 146 ( Pt 3);573-579
[PubMed:10746760] [WorldCat.org] [DOI] (P p)

K Yoshida, Y Fujita, S D Ehrlich
Three asparagine synthetase genes of Bacillus subtilis.
J Bacteriol: 1999, 181(19);6081-91
[PubMed:10498721] [WorldCat.org] [DOI] (P p)