Saltar al contenido
Merck
Todas las fotos(2)

Key Documents

Otros documentos

A6007

Sigma-Aldrich

Apotryptophanase from Escherichia coli

soluble powder, 75-150 units/mg solid

Sinónimos:

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

Iniciar sesiónpara Ver la Fijación de precios por contrato y de la organización
Todas las fotos(2)

About This Item

Número de CAS:
9024-00-4
Comisión internacional de enzimas:
4.1.99.1 (BRENDA, IUBMB)
MDL number:
MFCD00130539
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

Escherichia coli

Quality Level

200

form

soluble powder

specific activity

75-150 units/mg solid

storage temp.

−20°C

¿Está buscando productos similares? Visita Guía de comparación de productos

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 .

Unit Definition

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.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

¿Ya tiene este producto?

Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.

Visite la Librería de documentos

Birgit Seidelt et al.
Science (New York, N.Y.), 326(5958), 1412-1415 (2009-11-26)
Expression of the Escherichia coli tryptophanase operon depends on ribosome stalling during translation of the upstream TnaC leader peptide, a process for which interactions between the TnaC nascent chain and the ribosomal exit tunnel are critical. We determined a 5.8
Elzbieta Winnicka et al.
Isotopes in environmental and health studies, 46(2), 225-232 (2010-06-29)
The kinetic and solvent deuterium isotope effects in the 4- and 5-positions of the indole ring on the enzymatic decomposition of l-tryptophan catalysed by the enzyme TPase (EC. 4.1.99.1) were determined. The isotope effects were investigated by the non-competitive method
Zuzana Zubáčová et al.
Molecular and biochemical parasitology, 176(2), 135-137 (2011-01-05)
The highly repetitive nature of the Trichomonas vaginalis genome and massive expansion of various gene families has caused difficulties in genome assembly and has hampered genome mapping. Here, we adapted fluorescence in situ hybridization (FISH) for T. vaginalis, which is
Takako Sasaki-Imamura et al.
Applied and environmental microbiology, 76(13), 4260-4268 (2010-05-18)
The l-tryptophan degradation product indole is a purported extracellular signaling molecule that influences biofilm formation in various bacteria. Here we analyzed the mechanisms of indole production in Fusobacterium nucleatum and the effects of tryptophan and indole on F. nucleatum planktonic
Nicholas S Wigginton et al.
Environmental science & technology, 44(6), 2163-2168 (2010-02-18)
Here we describe results from a proteomic study of protein-nanoparticle interactions to further the understanding of the ecotoxicological impact of silver nanoparticles (AgNPs) in the environment. We identified a number of proteins from Escherichia coli that bind specifically to bare
Ver todos los artículos relacionados

Nuestro equipo de científicos tiene experiencia en todas las áreas de investigación: Ciencias de la vida, Ciencia de los materiales, Síntesis química, Cromatografía, Analítica y muchas otras.

Póngase en contacto con el Servicio técnico