Protein Info for b2688 in Escherichia coli BW25113

Name: gshA
Annotation: glutamate--cysteine ligase (NCBI)

These analyses and tools can help you predict a protein's function, but be skeptical. For enzymes, over 10% of annotations from KEGG or SEED are probably incorrect. For other types of proteins, the error rates may be much higher. MetaCyc and Swiss-Prot have low error rates, but the best hits in these databases are often quite distant, so this protein's function may not be the same. TIGRFam has low error rates. Finally, many experimentally-characterized proteins are not in any of these databases. To find relevant papers, use PaperBLAST.

Protein Families and Features

1 50 100 150 200 250 300 350 400 450 518 TIGR01434: glutamate--cysteine ligase" amino acids 6 to 517 (512 residues), 916.3 bits, see alignment E=2.4e-280 PF04262: Glu_cys_ligase" amino acids 10 to 380 (371 residues), 565.9 bits, see alignment E=1.6e-174

Best Hits

Swiss-Prot: 100% identical to GSH1_ECOHS: Glutamate--cysteine ligase (gshA) from Escherichia coli O9:H4 (strain HS)

KEGG orthology group: K01919, glutamate--cysteine ligase [EC: 6.3.2.2] (inferred from 100% identity to eco:b2688)

MetaCyc: 100% identical to glutamate--cysteine ligase (Escherichia coli K-12 substr. MG1655)
Glutamate--cysteine ligase. [EC: 6.3.2.2]

Predicted SEED Role

"Glutamate--cysteine ligase (EC 6.3.2.2)" in subsystem Glutathione: Biosynthesis and gamma-glutamyl cycle (EC 6.3.2.2)

MetaCyc Pathways

KEGG Metabolic Maps

Isozymes

No predicted isozymes

Use Curated BLAST to search for 6.3.2.2

Sequence Analysis Tools

PaperBLAST (search for papers about homologs of this protein)

Search CDD (the Conserved Domains Database, which includes COG and superfam)

Search structures

Predict protein localization: PSORTb (Gram-negative bacteria)

Predict transmembrane helices and signal peptides: Phobius

Check the current SEED with FIGfam search

Find homologs in fast.genomics or the ENIGMA genome browser

See P0A6W9 at UniProt or InterPro

Protein Sequence (518 amino acids)

>b2688 glutamate--cysteine ligase (NCBI) (Escherichia coli BW25113)
MIPDVSQALAWLEKHPQALKGIQRGLERETLRVNADGTLATTGHPEALGSALTHKWITTD
FAEALLEFITPVDGDIEHMLTFMRDLHRYTARNMGDERMWPLSMPCYIAEGQDIELAQYG
TSNTGRFKTLYREGLKNRYGALMQTISGVHYNFSLPMAFWQAKCGDISGADAKEKISAGY
FRVIRNYYRFGWVIPYLFGASPAICSSFLQGKPTSLPFEKTECGMYYLPYATSLRLSDLG
YTNKSQSNLGITFNDLYEYVAGLKQAIKTPSEEYAKIGIEKDGKRLQINSNVLQIENELY
APIRPKRVTRSGESPSDALLRGGIEYIEVRSLDINPFSPIGVDEQQVRFLDLFMVWCALA
DAPEMSSSELACTRVNWNRVILEGRKPGLTLGIGCETAQFPLPQVGKDLFRDLKRVAQTL
DSINGGEAYQKVCDELVACFDNPDLTFSARILRSMIDTGIGGTGKAFAEAYRNLLREEPL
EILREEDFVAEREASERRQQEMEAADTEPFAVWLEKHA