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4-Nitrophenyl-β-D-xylopyranoside

4-Nitrophenyl-beta-D-xylopyranoside O-PNPX
Product code: O-PNPX
€191.00

1 g

Prices exclude VAT

Available for shipping

Content: 1 g
Shipping Temperature: Ambient
Storage Temperature: Below -10oC
Physical Form: Powder
Stability: > 10 years under recommended storage conditions
CAS Number: 2001-96-9
Synonyms: p-Nitrophenyl-β-D-xylopyranoside, pNP-β-D-xylopyranoside
Molecular Formula: C11H13NO7
Molecular Weight: 271.22
Purity: > 98%
Substrate For (Enzyme): β-Xylosidase
Assay Format: Spectrophotometer, Microplate, Auto-analyser
Detection Method: Absorbance
Wavelength (nm): 400-420

High purity 4-Nitrophenyl-β-D-xylopyranoside for use in research, biochemical enzyme assays and in vitro diagnostic analysis. This is a colourimetric substrate for the measurement of β-xylosidase activity.

Documents
Certificate of Analysis
Safety Data Sheet
Booklet
Publications
Publication
Gene Expression and Molecular Characterization of a Xylanase from Chicken Cecum Metagenome.

AL-Darkazali, H., Meevootisom, V., Isarangkul, D. & Wiyakrutta, S. (2017). International Journal of Microbiology, 2017, ID 4018398.

A xylanase gene xynAMG1 with a 1,116-bp open reading frame, encoding an endo-β-1,4-xylanase, was cloned from a chicken cecum metagenome. The translated protein XynAMG1 consisted of 372 amino acids including a putative signal peptide of 23 amino acids. The calculated molecular mass of the mature XynAMG1 was 40,013 Da, with a theoretical pI value of 5.76. The amino acid sequence of XynAMG1 showed 59% identity to endo-β-1,4-xylanase from Prevotella bryantii and Prevotella ruminicola and 58% identity to that from Prevotella copri. XynAMG1 has two conserved motifs, DVVNE and TEXD, containing two active site glutamates and an invariant asparagine, characteristic of GH10 family xylanase. The xynAMG1 gene without signal peptide sequence was cloned and fused with thioredoxin protein (Trx.Tag) in pET-32a plasmid and overexpressed in Escherichia coli TunerTM (DE3)pLysS. The purified mature XynAMG1 was highly salt-tolerant and stable and displayed higher than 96% of its catalytic activity in the reaction containing 1 to 4 M NaCl. It was only slightly affected by common organic solvents added in aqueous solution to up to 5 M. This chicken cecum metagenome-derived xylanase has potential applications in animal feed additives and industrial enzymatic processes requiring exposure to high concentrations of salt and organic solvents.

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Safety Information
Symbol : GHS07
Signal Word : Warning
Hazard Statements : H315, H319, H335
Precautionary Statements : P261, P264, P271, P280, P302+P352, P304+P340
Safety Data Sheet
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