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T7902

Sigma-Aldrich

Thermolysin from Geobacillus stearothermophilus

powder, BioReagent, 30-350 units/mg protein (E1%/280), suitable for cell culture

Synonym(s):

Protease from Geobacillus stearothermophilus, Thermophilic-bacterial protease

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About This Item

CAS Number:
Enzyme Commission number:
EC Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.75

biological source

Geobacillus stearothermophilus

Quality Level

product line

BioReagent

form

powder

specific activity

30-350 units/mg protein (E1%/280)

mol wt

34.6 kDa

purified by

crystallization

technique(s)

cell culture | mammalian: suitable
single cell analysis: suitable

storage temp.

−20°C

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Application

A thermostable (thermophilic) extracellular metalloendopeptidase containing four calcium ions. Cofactors are zinc and calcium. Hydrolyzes protein bonds on the N-terminal side of hydrophobic amino acid residues. The pH optimum is 8.0 and the optimal temperature for activity is 70 °C. Considerably stable from pH 5 to 9.5. Thermolysin has a low cleavage specificity, therefore, it produces a number of short fragments that are suitable for sequencing. Preferential cleavage: X-cleavage-Y-Z where X=any amino acid; Y=Leu, Phe, Ile, Val, Met, Ala and Z is any amino acid other than Pro. Cleavage N-terminal to Leu is preferred over cleavage of N-terminal to Phe which is preferred over the others. Often used to do limited proteolysis for peptide mapping and studies of protein structure and conformational changes.

Unit Definition

One unit will hydrolyze casein to produce color equivalent to 1.0 μmole (181 μg) of tyrosine per min at pH 7.5 at 37 °C (color by Folin-Ciocalteu reagent).

Physical form

lyophilized powder containing calcium and sodium acetate buffer salts

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Resp. Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Allen F Ryan et al.
Frontiers in genetics, 11, 358-358 (2020-05-01)
Single-cell transcriptomics was used to profile cells of the normal murine middle ear. Clustering analysis of 6770 transcriptomes identified 17 cell clusters corresponding to distinct cell types: five epithelial, three stromal, three lymphocyte, two monocyte, two endothelial, one pericyte and
Lukas Menges et al.
British journal of pharmacology, 176(24), 4696-4707 (2019-08-20)
The intracellular signalling molecule cGMP, formed by NO-sensitive GC (NO-GC), has an established function in the vascular system. Despite numerous reports about NO-induced cGMP effects in the heart, the underlying cGMP signals are poorly characterized. Therefore, we analysed cGMP signals
David P Minde et al.
PloS one, 7(10), e46147-e46147 (2012-10-12)
The biophysical stability is an important parameter for protein activity both in vivo and in vitro. Here we propose a method to analyse thermal melting of protein domains in lysates: Fast parallel proteolysis (FASTpp). Combining unfolding by a temperature gradient
Natalie Seach et al.
Journal of immunological methods, 385(1-2), 23-34 (2012-08-23)
The reproducible isolation and accurate characterization of thymic epithelial cell (TEC) subsets is of critical importance to the ongoing study of thymopoiesis and its functional decline with age. The study of adult TEC, however, is significantly hampered due to the
Simon Cross et al.
Journal of chemical information and modeling, 52(10), 2587-2598 (2012-09-14)
Pharmacophore elucidation approaches are routinely used in drug discovery, primarily with the aim of determining the three-dimensional arrangement of common features shared by ligands interacting at the site of interest; these features can then be used to investigate the structure-activity

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