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A3233

L-Arginase from bovine liver

Protein ≥70 % by biuret, powder

Sinonimo/i:

L-Arginine amidinase, L-Arginine amidino-hydrolase

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2500 units
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CHF 831.00
12500 units
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CHF 3100.00
25000 units
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CHF 5390.00

Informazioni su questo articolo

Numero CAS:
9000-96-8
UNSPSC Code:
12352204
NACRES:
NA.77
EC Number:
232-570-3
MDL number:
MFCD00081368
Numero CE:
3.5.3.1 (BRENDA, IUBMB)
Specific activity:
≥100 units/mg protein
Biological source:
bovine liver

CHF 831.00

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biological source

bovine liver

Quality Segment

form

powder

specific activity

≥100 units/mg protein

composition

Protein, ≥70% biuret

UniProt accession no.

shipped in

dry ice

storage temp.

−20°C

Gene Information

cow ... ARG2(518752)

General description

L-arginase is also called as L-arginine amidinohydrolase. It exists in two forms, such as arginase-1 and arginase-2. Arginase-1 is present in liver cells and arginase-2 is seen usually in extrahepatic tissues like, kidney, brain, skeletal muscle, small intestine and the lactating mammary gland. Arginase -2 is mapped to human chromosome 14q24.1−24.3.

Biochem/physiol Actions

L-arginase hydrolyze L-arginine into L-ornithine and urea, which is the last step of the urea cycle in the liver of ureotelic species. Arginase plays a major role in the mammalian immune system and the enzyme participates in several aspects of inflammation.
L-Arginase is the major degradative enzyme for arginine; converts arginine to ornithine.
L-Arginase is the major degradative enzyme for arginine; converts arginine to ornithine; deficiency is associated with spasticity and motor dysfunction.

Other Notes

One unit will cause the hydrolysis of 1.0 μmole of L-arginine per minute at pH 9.5 and 37 °C.

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Questo articolo
13727911009A8094
L-Arginase from bovine liver Protein ≥70 % by biuret, powder

Sigma-Aldrich

A3233

L-Arginase from bovine liver

L-arginina EMPROVE® EXPERT, EP, USP

SAFC

137279

L-arginina

L-arginina BioUltra, ≥99.5% (NT)

Sigma-Aldrich

11009

L-arginina

L-arginina from non-animal source, meets EP, USP testing specifications, suitable for cell culture, 98.5-101.0%

Sigma-Aldrich

A8094

L-arginina

description

Protein ≥70 % by biuret, powder

description

EMPROVE® EXPERT, EP, USP

description

BioUltra, ≥99.5% (NT)

description

from non-animal source, meets EP, USP testing specifications, suitable for cell culture, 98.5-101.0%

Gene Information

cow ... ARG2(518752)

Gene Information

human ... NOS1(4842), NOS2(4843)
rat ... Ppm1a(24666)

Gene Information

human ... NOS1(4842), NOS2(4843)
rat ... Ppm1a(24666)

Gene Information

human ... NOS1(4842), NOS2(4843)
rat ... Ppm1a(24666)

specific activity

≥100 units/mg protein

specific activity

-

specific activity

-

specific activity

-

biological source

bovine liver

biological source

non-animal source

biological source

-

biological source

non-animal source

form

powder

form

crystalline powder

form

powder or crystals

form

powder

storage temp.

−20°C

storage temp.

-

storage temp.

-

storage temp.

-

shipped in

dry ice

shipped in

-

shipped in

-

shipped in

-

Pittogrammi

Health hazard
GHS08

Parola di avvertenza

Danger

Codici di pericolo

H334

Avvertenze di sicurezza

P261 - P284 - P501

Hazard Classifications

Resp. Sens. 1

Classe di stoccaggio

11 - Combustible Solids

WGK

WGK 1

Punto di infiammabilità (°F)

Not applicable

Punto di infiammabilità (°C)

Not applicable

DPI (dispositivi di protezione individuale)

Eyeshields, Gloves, type N95 (US)

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Certificati d'analisi (COA)

Lot/Batch Number

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Questions

  1. I want to use this enzyme at a neutal pH, could you please comment on the activity and how much reduction in enzyme activity and specificity would be happening due to the change in the pH?

    1 answer

    1. L-Arginase typically exhibits optimal activity at pH 9.5 and 37 °C. While the product is likely to retain some degree of potency, the enzymatic activity of this material at neutral pH has not been determined. The enzyme is known to be rapidly inactivated at pH values below 6, according to "The Reversible Inactivation of Rat-Liver Arginase at Low pH". Please see the link below, Figure 1, which shows the Inactivation of arginase at different pH values:
      https://febs.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1432-1033.1972.tb01809.x

      Please see the link below to review an additional article highlighting the relationship between pH and mouse liver arginase.
      https://www.jstage.jst.go.jp/article/biochemistry1922/45/12/45_12_1011/_pdf

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