Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary for 4.1.1.15 extracted from

  • Papakonstantinou, T.; Law, R.H.P.; Gardiner, P.; Rowley, M.J.; Mackay, I.R.
    Comparative expression and purification of human glutamic acid decarboxylase from Saccharomyces cerevisiae and Pichia pastoris (2000), Enzyme Microb. Technol., 26, 645-652.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
creation of a hybrid form of GAD consisting of amino acids 1-101 of the human GAD67 protein fused to amino acids 96-585 of the human GAD65 protein, and modification of this to include a C-terminal hexa-His tag sequence. The hybrid GAD67/65-H6 is expressed in two yeast hosts: constitutively under the control of the plasmid oxidase promoter PGK1 in Saccharomyces cerevisiae, and inducibly under the control of the chromosomal alcohol oxidase promoter AOX1 in Pichia pastoris. The hybrid GAD67/65 is isolated at high specific activity and moderate yield, and the addition of the His6 tag sequence of the choice of the yeast strain does not appreciably affect enzyme activity, percentage recovery of GAD, protein purification or utility in diagnosis of diabetes in terms of specificity and sensitivity to the various sera Homo sapiens

Protein Variants

Protein Variants Comment Organism
additional information creation of a hybrid form of GAD consisting of amino acids 1-101 of the human GAD67 protein fused to amino acids 96-585 of the human GAD65 protein, and modification of this to include a C-terminal hexa-His tag sequence. The hybrid GAD67/65-H6 is expressed in two yeast hosts: consitutively under the control of the plasmid oxidase promoter PGK1 in Saccharomyces cerevisiae, and inducibly under the control of the chromosomal alcohol oxidase promoter AOX1 in Pichia pastoris. The hybrid GAD67/65 is isolated at high specific activity and moderate yield, and the addition of the His6 tag sequence of the choice of the yeast strain does not appreciably affect enzyme activity, percentage recovery of GAD, protein purification or utility in diagnosis of diabetes in terms of specificity and sensitivity to the various sera Homo sapiens

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Homo sapiens

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
2.956
-
-
Homo sapiens

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-Glu
-
Homo sapiens 4-Aminobutanoate + CO2
-
?

Synonyms

Synonyms Comment Organism
GAD
-
Homo sapiens