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Merck
CN

R1003

Ribonuclease T1 from Aspergillus oryzae

ammonium sulfate suspension, 300,000-600,000 units/mg protein

Synonym(s):

Guanyloribonuclease, Ribonucleate 3′-guanylo-oligonucleotidohydrolase

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About This Item

CAS Number:
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
232-809-1
MDL number:
EC Number:
Specific activity:
300,000-600,000 units/mg protein
Biological source:
Aspergillus sp. (Aspergillus oryzae)
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biological source

Aspergillus sp. (Aspergillus oryzae)

Quality Level

form

ammonium sulfate suspension

specific activity

300,000-600,000 units/mg protein

mol wt

11068 by amino acid sequence

technique(s)

cell based assay: suitable

suitability

suitable for separating native or denatured proteins, or nucleic acids

application(s)

cell analysis

storage temp.

2-8°C

Application

Ribonuclease T1 (RNase T1) from Aspergillus oryzae is used to digest denatured RNA prior to sequencing and is used for protein folding studies .

Biochem/physiol Actions

Ribonuclease T1 (RNase T1) from Aspergillus oryzae is an endoribonuclease that hydrolyzes after G residues. Cleavage occurs between the 3′-phosphate group of a guanidine ribonucleotide and 5′-hydroxyl of the adjacent nucleotide. The initial product is a 2′:3′ cyclic phosphate nucleoside that is hydrolyzed to the corresponding 3′-nucleoside phosphate. It differs from Pancreatic RNase in that it attacks the guanine sites specifically to yield 3′-GMP and oligonucleotides with a 3′-GMP terminal group.

Physical form

Suspension in 2.8 M (NH4)2SO4 solution

Analysis Note

Protein determined by E1%/280

Other Notes

One unit will produce acid soluble oligonucleotides equivalent to a ΔA260 of 1.0 in 15 min at pH 7.5 at 37°C, in a reaction volume of 1.0 mL. Substrate: Yeast RNA.


Storage Class

10 - Combustible liquids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves

Regulatory Information

常规特殊物品

This item has



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Articles

以硫酸铵悬浮液形式提供的酶的使用指南

Instructions for working with enzymes supplied as ammonium sulfate suspensions


Caroline Haupt et al.
Journal of the American Chemical Society, 133(29), 11154-11162 (2011-06-15)
Slow protein folding processes during which kinetic folding intermediates occur for an extended time can lead to aggregation and dysfunction in living cells. Therefore, protein folding helpers have evolved, which prevent proteins from aggregation and/or speed up folding processes. In
Elisa Bombarda et al.
The journal of physical chemistry. B, 114(5), 1994-2003 (2010-01-22)
Because of their central importance for understanding enzymatic mechanisms, pK(a) values are of great interest in biochemical research. It is common practice to determine pK(a) values of amino acid residues in proteins from NMR or FTIR titration curves by determining
Ribonuclease T1: Structure, Function, and Stability
Pace, CN; Heinemann U, et al.
Angewandte Chemie (International Edition in English), 4, 343-360 (1991)



Global Trade Item Number

SKUGTIN
R1003-100KU04061832759425
R1003-500KU04061832759432