ProA

• Description: glutamate-5-semialdehyde dehydrogenase, required for normal and osmoadaptive proline biosynthesis
  
  

Gene name	proA
Synonyms
Essential	no
Product	glutamate-5-semialdehyde dehydrogenase
Function	biosynthesis of proline
Metabolic function and regulation of this protein in SubtiPathways: Pro, Stress
MW, pI	45 kDa, 5.098
Gene length, protein length	1245 bp, 415 aa
Immediate neighbours	proB, ohrA
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

Categories containing this gene/protein

biosynthesis/ acquisition of amino acids

This gene is a member of the following regulons

T-box

The gene

Basic information

• Locus tag: BSU13130

Phenotypes of a mutant

• auxotrophic for proline PubMed

Database entries

• DBTBS entry: no entry

• SubtiList entry: [1]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: L-glutamate 5-semialdehyde + phosphate + NADP⁺ = L-glutamyl 5-phosphate + NADPH (according to Swiss-Prot)

• Protein family: gamma-glutamyl phosphate reductase family (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization: cytoplasm (according to Swiss-Prot)

Database entries

• Structure: 1O20 (from Thermotoga maritima, 46% identity, 67% similarity) PubMed

• UniProt: P39821

• KEGG entry: [2]

• E.C. number: 1.2.1.41

Expression and regulation

• Operon: proB-proA PubMed

• Expression browser: proA PubMed

• Sigma factor: SigA PubMed

• Regulation:
  • induced by proline limitation (T-box) PubMed

• Regulatory mechanism:
  • T-box: RNA switch, transcriptional antitermination PubMed

• Additional information:
  • ProA is absent from the membrane proteome of a bdbC-bdbD mutant PubMed

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Additional publications: PubMed