Glutamate decarboxylase 1

NameGlutamate decarboxylase 1
Synonyms
  • 4.1.1.15
  • 67 kDa glutamic acid decarboxylase
  • GAD
  • GAD-67
  • GAD67
  • Glutamate decarboxylase 67 kDa isoform
Gene NameGAD1
OrganismHuman
Amino acid sequence
>lcl|BSEQ0000753|Glutamate decarboxylase 1
MASSTPSSSATSSNAGADPNTTNLRPTTYDTWCGVAHGCTRKLGLKICGFLQRTNSLEEK
SRLVSAFKERQSSKNLLSCENSDRDARFRRTETDFSNLFARDLLPAKNGEEQTVQFLLEV
VDILLNYVRKTFDRSTKVLDFHHPHQLLEGMEGFNLELSDHPESLEQILVDCRDTLKYGV
RTGHPRFFNQLSTGLDIIGLAGEWLTSTANTNMFTYEIAPVFVLMEQITLKKMREIVGWS
SKDGDGIFSPGGAISNMYSIMAARYKYFPEVKTKGMAAVPKLVLFTSEQSHYSIKKAGAA
LGFGTDNVILIKCNERGKIIPADFEAKILEAKQKGYVPFYVNATAGTTVYGAFDPIQEIA
DICEKYNLWLHVDAAWGGGLLMSRKHRHKLNGIERANSVTWNPHKMMGVLLQCSAILVKE
KGILQGCNQMCAGYLFQPDKQYDVSYDTGDKAIQCGRHVDIFKFWLMWKAKGTVGFENQI
NKCLELAEYLYAKIKNREEFEMVFNGEPEHTNVCFWYIPQSLRGVPDSPQRREKLHKVAP
KIKALMMESGTTMVGYQPQGDKANFFRMVISNPAATQSDIDFLIEEIERLGQDL
Number of residues594
Molecular Weight66896.065
Theoretical pI7.67
GO Classification
Functions
  • glutamate decarboxylase activity
  • pyridoxal phosphate binding
Processes
  • synaptic transmission
  • neurotransmitter secretion
  • neurotransmitter biosynthetic process
  • glutamate catabolic process
  • glutamate decarboxylation to succinate
  • protein-pyridoxal-5-phosphate linkage
Components
  • plasma membrane
  • vesicle membrane
  • clathrin-sculpted gamma-aminobutyric acid transport vesicle membrane
  • intracellular
General FunctionPyridoxal phosphate binding
Specific FunctionCatalyzes the production of GABA.
Pfam Domain Function
Transmembrane RegionsNot Available
GenBank Protein ID182936
UniProtKB IDQ99259
UniProtKB Entry NameDCE1_HUMAN
Cellular LocationNot Available
Gene sequence
>lcl|BSEQ0010267|Glutamate decarboxylase 1 (GAD1)
ATGGCGTCTTCGACCCCATCTTCGTCCGCAACCTCCTCGAACGCGGGAGCGGACCCCAAT
ACCACTAACCTGCGCCCCACAACGTACGATACCTGGTGCGGCGTGGCCCATGGATGCACC
AGAAAACTGGGGCTCAAGATCTGCGGCTTCTTGCAAAGGACCAACAGCCTGGAAGAGAAG
AGTCGCCTTGTGAGTGCCTTCAAGGAGAGGCAATCCTCCAAGAACCTGCTTTCCTGTGAA
AACAGCGACCGGGATGCCCGCTTCCGGCGCACAGAGACTGACTTCTCTAATCTGTTTGCT
AGAGATCTGCTTCCGGCTAAGAACGGTGAGGAGCAAACCGTGCAATTCCTCCTGGAAGTG
GTGGACATACTCCTCAACTATGTCCGCAAGACATTTGATCGCTCCACCAAGGTGCTGGAC
TTTCATCACCCACACCAGTTGCTGGAAGGCATGGAGGGCTTCAACTTGGAGCTCTCTGAC
CACCCCGAGTCCCTGGAGCAGATCCTGGTTGACTGCAGAGACACCTTGAAGTATGGGGTT
CGCACAGGTCATCCTCGATTTTTCAACCAGCTCTCCACTGGATTGGATATTATTGGCCTA
GCTGGAGAATGGCTGACATCAACGGCCAATACCAACATGTTTACATATGAAATTGCACCA
GTGTTTGTCCTCATGGAACAAATAACACTTAAGAAGATGAGAGAGATAGTTGGATGGTCA
AGTAAAGATGGTGATGGGATATTTTCTCCTGGGGGCGCCATATCCAACATGTACAGCATC
ATGGCTGCTCGCTACAAGTACTTCCCGGAAGTTAAGACAAAGGGCATGGCGGCTGTGCCT
AAACTGGTCCTCTTCACCTCAGAACAGAGTCACTATTCCATAAAGAAAGCTGGGGCTGCA
CTTGGCTTTGGAACTGACAATGTGATTTTGATAAAGTGCAATGAAAGGGGGAAAATAATT
CCAGCTGATTTTGAGGCAAAAATTCTTGAAGCCAAACAGAAGGGATATGTTCCCTTTTAT
GTCAATGCAACTGCTGGCACGACTGTTTATGGAGCTTTTGATCCGATACAAGAGATTGCA
GATATATGTGAGAAATATAACCTTTGGTTGCATGTCGATGCTGCCTGGGGAGGTGGGCTG
CTCATGTCCAGGAAGCACCGCCATAAACTCAACGGCATAGAAAGGGCCAACTCAGTCACC
TGGAACCCTCACAAGATGATGGGCGTGCTGTTGCAGTGCTCTGCCATTCTCGTCAAGGAA
AAGGGTATACTCCAAGGATGCAACCAGATGTGTGCAGGATACCTCTTCCAGCCAGACAAG
CAGTATGATGTCTCCTACGACACCGGGGACAAGGCAATTCAGTGTGGCCGCCACGTGGAT
ATCTTCAAGTTCTGGCTGATGTGGAAAGCAAAGGGCACAGTGGGATTTGAAAACCAGATC
AACAAATGCCTGGAACTGGCTGAATACCTCTATGCCAAGATTAAAAACAGAGAAGAATTT
GAGATGGTTTTCAATGGCGAGCCTGAGCACACAAACGTCTGTTTTTGGTATATTCCACAA
AGCCTCAGGGGTGTGCCAGACAGCCCTCAACGACGGGAAAAGCTACACAAGGTGGCTCCA
AAAATCAAAGCCCTGATGATGGAGTCAGGTACGACCATGGTTGGCTACCAGCCCCAAGGG
GACAAGGCCAACTTCTTCCGGATGGTCATCTCCAACCCAGCCGCTACCCAGTCTGACATT
GACTTCCTCATTGAGGAGATAGAAAGACTGGGCCAGGATCTGTAA
GenBank Gene IDM81883
GeneCard IDNot Available
GenAtlas IDGAD1
HGNC IDHGNC:4092
Chromosome Location2
Locus2q31
References
  1. Bu DF, Erlander MG, Hitz BC, Tillakaratne NJ, Kaufman DL, Wagner-McPherson CB, Evans GA, Tobin AJ: Two human glutamate decarboxylases, 65-kDa GAD and 67-kDa GAD, are each encoded by a single gene. Proc Natl Acad Sci U S A. 1992 Mar 15;89(6):2115-9. 1549570
  2. Bu DF, Tobin AJ: The exon-intron organization of the genes (GAD1 and GAD2) encoding two human glutamate decarboxylases (GAD67 and GAD65) suggests that they derive from a common ancestral GAD. Genomics. 1994 May 1;21(1):222-8. 8088791
  3. Kelly C, Carter ND, Johnstone AP, Nussey SS: Cloning of large isoform of human brain glutamic acid decarboxylase. Lancet. 1991 Dec 7;338(8780):1468-9. 1683462
  4. Kelly CD, Edwards Y, Johnstone AP, Harfst E, Nogradi A, Nussey SS, Povey S, Carter ND: Nucleotide sequence and chromosomal assignment of a cDNA encoding the large isoform of human glutamate decarboxylase. Ann Hum Genet. 1992 Jul;56(Pt 3):255-65. 1339255
  5. Yamashita K, Cram DS, Harrison LC: Molecular cloning of full-length glutamic acid decarboxylase 67 from human pancreas and islets. Biochem Biophys Res Commun. 1993 May 14;192(3):1347-52. 8507202
  6. Kawasaki E, Moriuchi R, Watanabe M, Saitoh K, Brunicardi FC, Watt PC, Yamaguchi T, Mullen Y, Akazawa S, Miyamoto T, et al.: Cloning and expression of large isoform of glutamic acid decarboxylase from human pancreatic islet. Biochem Biophys Res Commun. 1993 May 14;192(3):1353-9. 8507203
  7. Chessler SD, Lernmark A: Alternative splicing of GAD67 results in the synthesis of a third form of glutamic-acid decarboxylase in human islets and other non-neural tissues. J Biol Chem. 2000 Feb 18;275(7):5188-92. 10671565
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  10. Cram DS, Barnett LD, Joseph JL, Harrison LC: Cloning and partial nucleotide sequence of human glutamic acid decarboxylase cDNA from brain and pancreatic islets. Biochem Biophys Res Commun. 1991 May 15;176(3):1239-44. 2039509
  11. Persson H, Pelto-Huikko M, Metsis M, Soder O, Brene S, Skog S, Hokfelt T, Ritzen EM: Expression of the neurotransmitter-synthesizing enzyme glutamic acid decarboxylase in male germ cells. Mol Cell Biol. 1990 Sep;10(9):4701-11. 1697032
  12. Fenalti G, Law RH, Buckle AM, Langendorf C, Tuck K, Rosado CJ, Faux NG, Mahmood K, Hampe CS, Banga JP, Wilce M, Schmidberger J, Rossjohn J, El-Kabbani O, Pike RN, Smith AI, Mackay IR, Rowley MJ, Whisstock JC: GABA production by glutamic acid decarboxylase is regulated by a dynamic catalytic loop. Nat Struct Mol Biol. 2007 Apr;14(4):280-6. Epub 2007 Mar 25. 17384644
  13. Lynex CN, Carr IM, Leek JP, Achuthan R, Mitchell S, Maher ER, Woods CG, Bonthon DT, Markham AF: Homozygosity for a missense mutation in the 67 kDa isoform of glutamate decarboxylase in a family with autosomal recessive spastic cerebral palsy: parallels with Stiff-Person Syndrome and other movement disorders. BMC Neurol. 2004 Nov 30;4(1):20. 15571623