Gamma-glutamyltranspeptidase 1

NameGamma-glutamyltranspeptidase 1
Synonyms
  • 2.3.2.2
  • Gamma-glutamyltransferase 1
  • GGT
  • GGT 1
  • Glutathione hydrolase 1
  • Leukotriene-C4 hydrolase
Gene NameGGT1
OrganismHuman
Amino acid sequence
>lcl|BSEQ0001772|Gamma-glutamyltranspeptidase 1
MKKKLVVLGLLAVVLVLVIVGLCLWLPSASKEPDNHVYTRAAVAADAKQCSKIGRDALRD
GGSAVDAAIAALLCVGLMNAHSMGIGGGLFLTIYNSTTRKAEVINAREVAPRLAFATMFN
SSEQSQKGGLSVAVPGEIRGYELAHQRHGRLPWARLFQPSIQLARQGFPVGKGLAAALEN
KRTVIEQQPVLCEVFCRDRKVLREGERLTLPQLADTYETLAIEGAQAFYNGSLTAQIVKD
IQAAGGIVTAEDLNNYRAELIEHPLNISLGDVVLYMPSAPLSGPVLALILNILKGYNFSR
ESVESPEQKGLTYHRIVEAFRFAYAKRTLLGDPKFVDVTEVVRNMTSEFFAAQLRAQISD
DTTHPISYYKPEFYTPDDGGTAHLSVVAEDGSAVSATSTINLYFGSKVRSPVSGILFNNE
MDDFSSPSITNEFGVPPSPANFIQPGKQPLSSMCPTIMVGQDGQVRMVVGAAGGTQITTA
TALAIIYNLWFGYDVKRAVEEPRLHNQLLPNVTTVERNIDQAVTAALETRHHHTQIASTF
IAVVQAIVRTAGGWAAASDSRKGGEPAGY
Number of residues569
Molecular Weight61409.67
Theoretical pI7.14
GO Classification
Functions
  • gamma-glutamyltransferase activity
  • glutathione hydrolase activity
Processes
  • glutathione derivative biosynthetic process
  • zymogen activation
  • cellular amino acid metabolic process
  • small molecule metabolic process
  • glutathione catabolic process
  • regulation of immune system process
  • leukotriene biosynthetic process
  • regulation of inflammatory response
  • xenobiotic metabolic process
  • arachidonic acid metabolic process
  • leukotriene metabolic process
  • cysteine biosynthetic process
  • glutathione metabolic process
  • spermatogenesis
  • glutamate metabolic process
  • glutathione biosynthetic process
Components
  • integral component of membrane
  • extracellular exosome
  • anchored component of external side of plasma membrane
  • plasma membrane
  • extracellular space
General FunctionGlutathione hydrolase activity
Specific FunctionCleaves the gamma-glutamyl bond of extracellular glutathione (gamma-Glu-Cys-Gly), glutathione conjugates, and other gamma-glutamyl compounds. The metabolism of glutathione releases free glutamate and the dipeptide, cysteinyl-glycine, which is hydrolyzed to cysteine and glycine by dipeptidases. In the presence of high concentrations of dipeptides and some amino acids, can also catalyze a transpeptidation reaction, transferring the gamma-glutamyl moiety to an acceptor amino acid to form a new gamma-glutamyl compound. Initiates extracellular glutathione (GSH) breakdown, provides cells with a local cysteine supply and contributes to maintain intracellular GSH level. It is part of the cell antioxidant defense mechanism. Isoform 3 seems to be inactive.
Pfam Domain Function
Transmembrane Regions5-26
GenBank Protein ID183138
UniProtKB IDP19440
UniProtKB Entry NameGGT1_HUMAN
Cellular LocationCell membrane
Gene sequence
>lcl|BSEQ0010627|Gamma-glutamyltranspeptidase 1 (GGT1)
ATGAAGAAGAAGTTAGTGGTGCTGGGCCTGCTGGCCGTGGTCCTGGTGCTGGTCATTGTC
GGCCTCTGTCTCTGGCTGCCCTCAGCCTCCAAGGAACCTGACAACCATGTGTACACCAGG
GCTGCCGTGGCCGCGGATGCCAAGCAGTGCTCGAAGATTGGGAGGGATGCACTGCGGGAC
GGTGGCTCTGCGGTGGATGCAGCCATTGCAGCCCTGTTGTGTGTGGGGCTCATGAATGCC
CACAGCATGGGCATCGGGGGTGGCCTCTTCCTCACCATCTACAACAGCACCACACGAAAA
GCTGAGGTCATCAACGCCCGCGAGGTGGCCCCCAGGCTGGCCTTTGCCACCATGTTCAAC
AGCTCGGAGCAGTCCCAGAAGGGGGGGCTGTCGGTGGCGGTGCCTGGGGAGATCCGAGGC
TATGAGCTGGCACACCAGCGGCATGGGCGGCTGCCCTGGGCTCGCCTCTTCCAGCCCAGC
ATCCAGCTGGCCCGCCAGGGCTTCCCCGTGGGCAAGGGCTTGGCGGCAGCCCTGGAAAAC
AAGCGGACCGTCATCGAGCAGCAGCCTGTCTTGTGTGAGGTGTTCTGCCGGGATAGAAAG
GTGCTTCGGGAGGGGGAGAGACTGACCCTGCCGCAGCTGGCTGACACCTACGAGACGCTG
GCCATCGAGGGTGCCCAGGCCTTCTACAACGGCAGCCTCACGGCCCAGATTGTGAAGGAC
ATCCAGGCGGCCGGGGGCATTGTGACAGCTGAGGACCTGAACAACTACCGTGCTGAGCTG
ATCGAGCACCCGCTGAACATCAGCCTGGGAGACGTGGTGCTGTACATGCCCAGTGCGCCG
CTCAGCGGGCCCGTGCTGGCCCTCATCCTCAACATCCTCAAAGGGTACAACTTCTCCCGG
GAGAGCGTGGAGAGCCCCGAGCAGAAGGGCCTGACGTACCACCGCATCGTAGAGGCTTTC
CGGTTTGCCTACGCCAAGAGGACCCTGCTTGGGGACCCCAAGTTTGTGGATGTGACTGAG
GTGGTCCGCAACATGACCTCCGAGTTCTTCGCTGCCCAGCTCCGGGCCCAGATCTCTGAC
GACACCACTCACCCGATCTCCTACTACAAGCCCGAGTTCTACACGCCGGATGACGGGGGC
ACTGCTCACCTGTCTGTCGTCGCAGAGGACGGCAGTGCTGTGTCCGCCACCAGCACCATC
AACCTCTACTTTGGCTCCAAGGTCCGCTCCCCGGTCAGCGGGATCCTGTTCAATAATGAA
ATGGACGACTTCAGCTCTCCCAGCATCACCAACGAGTTTGGGGTACCCCCCTCACCTGCC
AATTTCATCCAGCCAGGGAAGCAGCCGCTCTCGTCCATGTGCCCGACGATCATGGTGGGC
CAGGACGGCCAGGTCCGGATGGTGGTGGGAGCTGCTGGGGGCACACAGATCACCACGGCC
ACTGCACTGGCCATCATCTACAACCTCTGGTTCGGCTATGACGTGAAGCGGGCCGTGGAG
GAGCCCCGGCTGCACAACCAGCTTCTGCCCAACGTCACGACAGTGGAGAGAAACATTGAC
CAGGCAGTGACTGCAGCCCTGGAGACCCGGCACCATCACACCCAGATCGCGTCCACCTTC
ATCGCTGTGGTGCAAGCCATCGTCCGCACGGCTGGTGGCTGGGCAGCTGCCTCGGACTCC
AGGAAAGGCGGGGAGCCTGCCGGCTACTGA
GenBank Gene IDJ04131
GeneCard IDNot Available
GenAtlas IDGGT1
HGNC IDHGNC:4250
Chromosome Location22
Locus22q11.23
References
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