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R1003

Sigma-Aldrich

Ribonuclease T1 from Aspergillus oryzae

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

Synonyme(s) :

Guanyloribonuclease, Ribonucleate 3′-guanylo-oligonucleotidohydrolase

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About This Item

Numéro CAS:
9026-12-4
Numéro de classification (Commission des enzymes):
3.1.27.3 (BRENDA, IUBMB)
Numéro CE :
232-809-1
Numéro MDL:
MFCD00132191
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.54

Source biologique

Aspergillus sp. (Aspergillus oryzae)

Forme

ammonium sulfate suspension

Activité spécifique

300,000-600,000 units/mg protein

Poids mol.

11068 by amino acid sequence

Technique(s)

cell based assay: suitable

Adéquation

suitable for separating native or denatured proteins, or nucleic acids

Application(s)

cell analysis

Température de stockage

2-8°C

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Application

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

Actions biochimiques/physiologiques

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.

Définition de l'unité

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.

Forme physique

Suspension in 2.8 M (NH4)2SO4 solution

Remarque sur l'analyse

Protein determined by E1%/280

Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves

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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
Patrizia Contursi et al.
Extremophiles : life under extreme conditions, 14(5), 453-463 (2010-08-25)
The pSSVx from Sulfolobus islandicus, strain REY15/4, is a hybrid between a plasmid and a fusellovirus. A systematic study previously performed revealed the presence of nine major transcripts, the expression of which was differentially and temporally regulated over the growth
Scott Quarrier et al.
RNA (New York, N.Y.), 16(6), 1108-1117 (2010-04-24)
Structure mapping experiments (using probes such as dimethyl sulfate [DMS], kethoxal, and T1 and V1 RNases) are used to determine the secondary structures of RNA molecules. The process is iterative, combining the results of several probes with constrained minimum free-energy
Colette M Castleberry et al.
Nucleic acids research, 38(16), e162-e162 (2010-07-01)
Transfer ribonucleic acids (tRNAs) are challenging to identify and quantify from unseparated mixtures. Our lab previously developed the signature digestion approach for identifying tRNAs without specific separation. Here we describe the combination of relative quantification via enzyme-mediated isotope labeling with
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