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hemA [Tue Feb 09 2016 20:35:37 GMT+0100 (CET)]
function
porphyrin biosynthesis
product
glutamyl-tRNA reductase
Genomic Context
categories
[category|SW 2|Metabolism] → [category|SW 2.6|Additional metabolic pathways] → [category|SW 2.6.2|Biosynthesis of cofactors] → [category|SW 2.6.2.6|Biosynthesis of heme/ siroheme][SW|Categories] containing this gene/protein
[SW|biosynthesis of cofactors], [SW|membrane proteins]This gene is a member of the following [SW|regulons]
[SW|PerR regulon]Gene
Coordinates on the chromosome (coding sequence)
2,877,766 -> 2,879,133
The protein
Catalyzed reaction/ biological activity
L-glutamate 1-semialdehyde NADP tRNA(Glu) = L-glutamyl-tRNA(Glu) NADPH (according to Swiss-Prot) Protein family
glutamyl-tRNA reductase family (according to Swiss-Prot)Structure
[PDB|4N7R] (from ''Arabidopsis thaliana'', 32% identity)[SW|Localization]
cell membrane (according to Swiss-Prot)Expression and Regulation
Operon
''[protein|search|hemA]-[protein|search|hemX]-[protein|search|hemC]-[protein|search|hemD]-[protein|search|hemB]-[protein|search|hemL]'' [Pubmed|1672867][SW|Sigma factor]
[protein|search|SigA] [Pubmed|1672867]Regulation
induced by hydrogen peroxide ([protein|search|PerR]) [Pubmed|11532148]Regulatory mechanism
[protein|search|PerR]: transcription repression [Pubmed|11532148]References
10217486,8012594,7667267,1536660,1672867,8932315,11532148