HemL

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  • Description: glutamate-1-semialdehyde aminotransferase

Gene name hemL
Synonyms hemK
Essential no
Product glutamate-1-semialdehyde aminotransferase
Function heme biosynthesis
Gene expression levels in SubtiExpress: hemL
Metabolic function and regulation of this protein in SubtiPathways:
HemL
MW, pI 46 kDa, 5.055
Gene length, protein length 1290 bp, 430 aa
Immediate neighbours spoVID, hemB
Sequences Protein DNA DNA_with_flanks
Genetic context
HemL context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
HemL expression.png
























Categories containing this gene/protein

biosynthesis of cofactors

This gene is a member of the following regulons

PerR regulon

The gene

Basic information

  • Locus tag: BSU28120

Phenotypes of a mutant

Database entries

  • DBTBS entry: [1]
  • SubtiList entry: [2]

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: (S)-4-amino-5-oxopentanoate = 5-aminolevulinate (according to Swiss-Prot)
  • Protein family: HemL subfamily (according to Swiss-Prot)
  • Paralogous protein(s): GsaB

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification:
  • Cofactor(s):
  • Effectors of protein activity:

Database entries

  • KEGG entry: [3]

Additional information

Expression and regulation

  • Regulation:
  • Regulatory mechanism:
  • Additional information:
    • number of protein molecules per cell (minimal medium with glucose and ammonium): 762 PubMed
    • number of protein molecules per cell (complex medium with amino acids, without glucose): 1928 PubMed

Biological materials

  • Mutant:
  • Expression vector:
  • lacZ fusion:
  • GFP fusion:
  • two-hybrid system:
  • Antibody:

Labs working on this gene/protein

Your additional remarks

References

Honghua Ge, Xinhuai Lv, Jun Fan, Yongxiang Gao, Maikun Teng, Liwen Niu
Crystal structure of glutamate-1-semialdehyde aminotransferase from Bacillus subtilis with bound pyridoxamine-5'-phosphate.
Biochem Biophys Res Commun: 2010, 402(2);356-60
[PubMed:20946885] [WorldCat.org] [DOI] (I p)

A F Herbig, J D Helmann
Roles of metal ions and hydrogen peroxide in modulating the interaction of the Bacillus subtilis PerR peroxide regulon repressor with operator DNA.
Mol Microbiol: 2001, 41(4);849-59
[PubMed:11532148] [WorldCat.org] [DOI] (P p)

Per Johansson, Lars Hederstedt
Organization of genes for tetrapyrrole biosynthesis in gram--positive bacteria.
Microbiology (Reading): 1999, 145 ( Pt 3);529-538
[PubMed:10217486] [WorldCat.org] [DOI] (P p)

M Hansson, L Rutberg, I Schröder, L Hederstedt
The Bacillus subtilis hemAXCDBL gene cluster, which encodes enzymes of the biosynthetic pathway from glutamate to uroporphyrinogen III.
J Bacteriol: 1991, 173(8);2590-9
[PubMed:1672867] [WorldCat.org] [DOI] (P p)