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egtC

Gene
egtC
Protein
Gamma-glutamyl-hercynylcysteine sulfoxide hydrolase
Organism
Mycobacterium tuberculosis (strain CDC 1551 / Oshkosh)
Length
233 amino acids
Function
Catalyzes the hydrolysis of the gamma-glutamyl amide bond of hercynyl-gamma-L-glutamyl-L-cysteine sulfoxide to produce hercynylcysteine sulfoxide, a step in the biosynthesis pathway of ergothioneine (By similarity). ERG is one of the major redox buffers which protects bacteria against redox stressors and antibiotics; loss of ERG or mycothiol (MSH, the other major redox buffer in this bacteria) leads to respiratory alterations and bioenergetic deficiencies that negatively impact virulence (PubMed:26774486).
Mass
24.601 kDa
Sequence
MCRHLGWLGAQVAVSSLVLDPPQGLRVQSYAPRRQKHGLMNADGWGVGFFDGAIPRRWRSAAPLWGDTSFHSVAPALRSHCILAAVRSATVGMPIEVSATPPFTDGHWLLAHNGVVDRAVLPAGPAAESVCDSAILAATIFAHGLDALGDTIVKVGAADPNARLNILAANGSRLIATTWGDTLSILRRADGVVLASEPYDDDSGWGDVPDRHLVEVTQKGVTLTALDRAKGPR

Gene
egtC
Protein
Gamma-glutamyl-hercynylcysteine sulfoxide hydrolase
Organism
Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
Length
233 amino acids
Function
Catalyzes the hydrolysis of the gamma-glutamyl amide bond of hercynyl-gamma-L-glutamyl-L-cysteine sulfoxide to produce hercynylcysteine sulfoxide, a step in the biosynthesis pathway of ergothioneine. Ergothioneine is an antioxidant that protects mycobacteria from oxidative stress.
Mass
24.627 kDa
Sequence
MCRHLGWLGAQVAVSSLVLDPPQGLRVQSYAPRRQKHGLMNADGWGVGFFDGAIPRRWRSPAPLWGDTSFHSVAPALRSHCILAAVRSATVGMPIEVSATPPFTDGHWLLAHNGVVDRAVLPAGPAAESVCDSAILAATIFAHGLDALGDTIVKVGAADPNARLNILAANGSRLIATTWGDTLSILRRADGVVLASEPYDDDSGWGDVPDRHLVEVTQKGVTLTALDRAKGPR

Gene
egtC
Protein
Gamma-glutamyl-hercynylcysteine sulfoxide hydrolase
Organism
Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155)
Length
227 amino acids
Function
Catalyzes the hydrolysis of the gamma-glutamyl amide bond of hercynyl-gamma-L-glutamyl-L-cysteine sulfoxide to produce hercynylcysteine sulfoxide, a step in the biosynthesis pathway of ergothioneine.
Mass
24.139 kDa
Sequence
MCRHVAWLGAPRSLADLVLDPPQGLLVQSYAPRRQKHGLMNADGWGAGFFDDEGVARRWRSDKPLWGDASFASVAPALRSRCVLAAVRSATIGMPIEPSASAPFSDGQWLLSHNGLVDRGVLPLTGAAESTVDSAIVAALIFSRGLDALGATIAEVGELDPNARLNILAANGSRLLATTWGDTLSVLHRPDGVVLASEPYDDDPGWSDIPDRHLVDVRDAHVVVTPL