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A6007

Apotryptophanase from Escherichia coli

soluble powder, 75-150 units/mg solid

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Synonym(s):

Tryptophanase from Escherichia coli, L-Tryptophan indole-lyase (deaminating)

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Size/SKUAvailabilityPrice
25 mg

Available to ship TODAYfromMILWAUKEE

$752.00

About This Item

CAS Number:
9024-00-4
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
4.1.99.1 (BRENDA, IUBMB)
MDL number:
MFCD00130539
Specific activity:
75-150 units/mg solid
Biological source:
Escherichia coli

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biological source

Escherichia coli

Quality Segment

200

form

soluble powder

specific activity

75-150 units/mg solid

storage temp.

−20°C

Application

Apotryptophanase is used for the quantitative determination of pyridoxal-phosphate. Apotryptophanase, from Sigma, has been used to study pregnancy-associated PLP deficiency and vitamin B-6 deficiency .

Biochem/physiol Actions

Apotryptophanase hydrolizes tryptophan and is capable of catalyzing α,β-elimination reactions with a number of substituted amino acids, including S-methyl-, S-ethyl- and S-benzyl- L-cysteine. DTNB inactivates tryptophanase .

Other Notes

One unit releases one μg of indole from L-tryptophan in 10 min at pH 8.3 at 37 °C in the presence of 0.04 mM pyridoxal-5′--phosphate.

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Apotryptophanase from Escherichia coli soluble powder, 75-150 units/mg solid

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Apotryptophanase from Escherichia coli

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Sigma-Aldrich

G7882

L-Glutamic Dehydrogenase from bovine liver

description

soluble powder, 75-150 units/mg solid

description

recombinant, expressed in E. coli, lyophilized powder, ≥5.0 units/mg solid

description

Grade I, buffered aqueous glycerol solution, 0.8-2.0 units/mg protein

description

Type III, lyophilized powder, ≥20 units/mg protein

specific activity

75-150 units/mg solid

specific activity

≥5.0 units/mg solid

specific activity

0.8-2.0 units/mg protein

specific activity

≥20 units/mg protein

biological source

Escherichia coli

biological source

-

biological source

fungus (Rhodotorula glutinis)

biological source

bovine liver

form

soluble powder

form

lyophilized powder

form

buffered aqueous glycerol solution

form

lyophilized powder

storage temp.

−20°C

storage temp.

2-8°C

storage temp.

−20°C

storage temp.

−20°C

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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    Certificates of Analysis (COA)

    Lot/Batch Number
    0000522908
    0000398842
    0000372662
    126M4157V
    11160820

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