C9658
Carboxypeptidase G from Pseudomonas sp.
lyophilized powder, ≥3 units/mg protein
Synonym(s):
γ-Glutamyl hydrolase
form
lyophilized powder
Quality Level
specific activity
≥3 units/mg protein
mol wt
homodimer ~90 kDa
composition
Protein, ~70% biuret
solubility
H2O: soluble 0.5 mg/mL
storage temp.
−20°C
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Related Categories
Application
Carboxypeptidase G from Pseudomonas sp., or γ-Glutamyl hydrolase, has been used in a study to assess the role of the putidaredoxin COOH-terminus in P-450cam (cytochrome m) hydroxylations. Carboxypeptidase G from Pseudomonas sp. has also been used in a study to investigate the effects of nitric oxide on pemetrexed cytotoxicity via NO‑cGMP signaling in lung adenocarcinoma cells.
Biochem/physiol Actions
Carboxypeptidase G is a lysosomal, thiol-dependent protease, which progressively cleaves γ-glutamyl pteroyl poly-γ-glutamate yielding pteroyl-α-glutamate (folic acid) and free glutamate. It is considered highly specific for the γ-glutamyl bond, but not for the C-terminal amino acid of the leaving group. Molecular mass of this homodimer is approximately 90 kDa. The enzyme is activated by Zn2+ ions.
Physical form
Contains sodium acetate salt.
Preparation Note
Chromatographically purified
Solutions should be prepared fresh prior to use.
Other Notes
One unit will hydrolyze 1.0 μmole of L-glutamic acid from (+)amethopterin per min at pH 7.3 at 30 °C.
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Regulatory Information
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Taiji Kawakatsu et al.
The Plant journal : for cell and molecular biology, 58(6), 1028-1040 (2009-02-21)
Most aerial parts of the plant body are products of the continuous activity of the shoot apical meristem (SAM). Leaves are the major component of the aerial plant body, and their temporal and spatial distribution mainly determines shoot architecture. Here
Clearing up the confusion over the glutamate carboxypeptidase II gene.
Denise S O'Keefe et al.
American journal of medical genetics. Part A, 130A(3), 327-327 (2004-09-16)
Valentina A Carozzi et al.
Neurotoxicity research, 17(4), 380-391 (2009-09-19)
Chemotherapy is the most common method to treat cancer. The use of certain antineoplastic drugs, however, is associated with the development of peripheral neuropathy that can be dose-limiting. Excitotoxic glutamate release, leading to excessive glutamatergic neurotransmission and activation of N-methyl-D-aspartate
Nelson J M Saibo et al.
Planta, 225(4), 831-842 (2006-09-29)
Ethylene and gibberellins have a synergistic stimulatory effect on hypocotyl elongation of light-grown Arabidopsis thaliana (L.) Heynh. seedlings. A screen for mutants with decreased response to these hormones led to the isolation of a novel allele (ampl-7) of the ALTERED
Hiroki Nagai et al.
International journal of oncology, 41(1), 24-30 (2012-05-04)
Pemetrexed (PEM) is a novel, multitargeted, antifolate, antineoplastic agent for the treatment of non-small cell lung cancer and malignant pleural mesothelioma. Additional effects of nitric oxide (NO) donors on the chemosensitivity of cancers have been reported. However, the effects of
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