YlnE

• Description: probable siroheme ferrochelatase
  
  

Gene name	ylnE
Synonyms
Essential	no
Product	probable siroheme ferrochelatase
Function	siroheme biosynthesis, sulfite reduction
Gene expression levels in SubtiExpress: ylnE
Metabolic function and regulation of this protein in SubtiPathways: ylnE
MW, pI	28 kDa, 6.063
Gene length, protein length	783 bp, 261 aa
Immediate neighbours	ylnD, ylnF
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

biosynthesis of cofactors

This gene is a member of the following regulons

CymR regulon, S-box

The gene

Basic information

• Locus tag: BSU15620

Database entries

• BsubCyc: BSU15620

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: Siroheme + 2 H⁺ = sirohydrochlorin + Fe²⁺ (according to Swiss-Prot)

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

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:

Database entries

• BsubCyc: BSU15620

• Structure:

• UniProt: O34632

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: cysH-cysP-sat-cysC-ylnD-ylnE-ylnF PubMed

• Expression browser: ylnE PubMed

• Sigma factor: SigA PubMed

• Regulation:
  • repressed by casamino acids PubMed
  • repressed in the presence of cysteine (CymR)
  • 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
  • CymR: transcription repression

• Additional information:
  • number of protein molecules per cell (minimal medium with glucose and ammonium): 192 PubMed
  • number of protein molecules per cell (complex medium with amino acids, without glucose): 542 PubMed

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

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)

Daniela Albanesi, Maria Cecilia Mansilla, Gustavo E Schujman, Diego de Mendoza
Bacillus subtilis cysteine synthetase is a global regulator of the expression of genes involved in sulfur assimilation.
J Bacteriol: 2005, 187(22);7631-8
[PubMed:16267287] [WorldCat.org] [DOI] (P p)

Ulrike Mäder, Georg Homuth, Christian Scharf, Knut Büttner, Rüdiger Bode, Michael Hecker
Transcriptome and proteome analysis of Bacillus subtilis gene expression modulated by amino acid availability.
J Bacteriol: 2002, 184(15);4288-95
[PubMed:12107147] [WorldCat.org] [DOI] (P p)

M C Mansilla, D Albanesi, D de Mendoza
Transcriptional control of the sulfur-regulated cysH operon, containing genes involved in L-cysteine biosynthesis in Bacillus subtilis.
J Bacteriol: 2000, 182(20);5885-92
[PubMed:11004190] [WorldCat.org] [DOI] (P p)