RocA

• Description: 3-hydroxy-1-pyrroline-5-carboxylate dehydrogenase
  
  

Gene name	rocA
Synonyms	ipa-76d
Essential	no
Product	3-hydroxy-1-pyrroline-5-carboxylate dehydrogenase
Function	arginine, ornithine and citrulline utilization
Gene expression levels in SubtiExpress: rocA
Metabolic function and regulation of this protein in SubtiPathways: Ammonium/ glutamate
MW, pI	56 kDa, 5.58
Gene length, protein length	1545 bp, 515 aa
Immediate neighbours	rocB, rocG
Sequences	Protein DNA Advanced_DNA
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

Categories containing this gene/protein

utilization of amino acids, phosphoproteins

This gene is a member of the following regulons

AbrB regulon, AhrC regulon, CodY regulon, RocR regulon, SigL regulon

The gene

Basic information

• Locus tag: BSU37780

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: (S)-1-pyrroline-5-carboxylate + NAD(P)⁺ + 2 H₂O = L-glutamate + NAD(P)H (according to Swiss-Prot)

• Protein family: RocA subfamily (according to Swiss-Prot)

• Paralogous protein(s): PutC, additional similar proteins: YfmT, AldY, YcbD, GabD, GbsA, DhaS, IolA, AldX, YwdH

Extended information on the protein

• Kinetic information:

• Domains:

• Modification: phosphorylation on (Thr-2 OR Thr-4 OR Tyr-5) PubMed

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:

Database entries

• Structure: 3RJL (1-pyrroline-5-carboxylate dehydrogenase from Bacillus licheniformis, 68% identity, 88% similarity)

• UniProt: P39634

• KEGG entry: [3]

• E.C. number: 1.5.1.12

Expression and regulation

• Operon: rocA-rocB-rocC PubMed

• Expression browser: rocA PubMed

• Sigma factor: SigL PubMed

• Regulation:
  • induction by arginine (RocR, AhrC) PubMed
  • repressed during growth in the presence of branched chain amino acids (CodY) PubMed

• Regulatory mechanism:
  • CodY: transcription repression PubMed
  • RocR: transcription activation PubMed
  • AhrC: transcription activation PubMed
  • AbrB: transcription repression PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Additional publications: PubMed

Boris Macek, Ivan Mijakovic, Jesper V Olsen, Florian Gnad, Chanchal Kumar, Peter R Jensen, Matthias Mann
The serine/threonine/tyrosine phosphoproteome of the model bacterium Bacillus subtilis.
Mol Cell Proteomics: 2007, 6(4);697-707
[PubMed:17218307] [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)

U Klingel, C M Miller, A K North, P G Stockley, S Baumberg
A binding site for activation by the Bacillus subtilis AhrC protein, a repressor/activator of arginine metabolism.
Mol Gen Genet: 1995, 248(3);329-40
[PubMed:7565595] [WorldCat.org] [DOI] (P p)

S Calogero, R Gardan, P Glaser, J Schweizer, G Rapoport, M Debarbouille
RocR, a novel regulatory protein controlling arginine utilization in Bacillus subtilis, belongs to the NtrC/NifA family of transcriptional activators.
J Bacteriol: 1994, 176(5);1234-41
[PubMed:8113162] [WorldCat.org] [DOI] (P p)