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P2143

Sigma-Aldrich

Protease from Aspergillus saitoi

Type XIII, ≥0.6 unit/mg solid

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Synonym(s):
Molsin
CAS Number:
Enzyme Commission number:
EC Number:
MDL number:
UNSPSC Code:
12352204
eCl@ss:
32160410
NACRES:
NA.54

biological source

Aspergillus sp. (Aspergillus saitoi)

Quality Level

type

Type XIII

form

solid

specific activity

≥0.6 unit/mg solid

foreign activity

alkaline protease, essentially free

storage temp.

−20°C

Related Categories

Application

Protease from Aspergillus saitoi has been used in a study to assess sequence coverage and resolution in hydrogen exchange of large proteins. It has also been used in a study to investigate the conversion of soybean curd isoflavone glycosides to their aglycones through β-glucosidase..

Biochem/physiol Actions

Protease from Aspergillus saitoi was shown to also function as a β-glucosidase.

Unit Definition

One unit will hydrolyze hemoglobin to produce color equivalent to 1.0 μmole (181 μg) of tyrosine per min at pH 2.8 at 37 °C (color by Folin-Ciocalteu reagent).

pictograms

Health hazardExclamation mark

signalword

Danger

Hazard Classifications

Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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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E Ichishima
Bioscience, biotechnology, and biochemistry, 64(4), 675-688 (2000-06-01)
This review covers the unique catalytic and molecular properties of three proteolytic enzymes and a glycosidase from Aspergillus. An aspartic proteinase from A. saitoi, aspergillopepsin I (EC 3.4.23.18), favors hydrophobic amino acids at P1 and P'1 like gastric pepsin. However
F J Moralejo et al.
Applied microbiology and biotechnology, 54(6), 772-777 (2001-01-11)
A gene encoding the sweet-tasting protein thaumatin (tha) with optimized codon usage was expressed in Aspergillus awamori. Mutants of A. awamori with reduced proteolytic activity were isolated. One of these mutants, named lpr66, contained an insertion of about 200 bp
R E Cardoza et al.
Biotechnology and bioengineering, 83(3), 249-259 (2003-06-05)
A copy of the bovine chymosin gene (chy) with a codon usage optimized for its expression in Aspergillus awamori was constructed starting from synthetic oligonucleotides. To study the ability of this filamentous fungus to secrete bovine prochymosin, two plasmids were
E Skyttä et al.
The Journal of applied bacteriology, 74(2), 134-142 (1993-02-01)
The broad-spectrum antibacterial activity exhibited by three Pediococcus strains isolated from beer was preliminarily characterized. Factors affecting the production rate of bacterial inhibitors were screened and the effects of simultaneous cultivation of Lactococcus and Pediococcus on the production of inhibitory
Shawn M Costello et al.
Nature structural & molecular biology, 29(3), 229-238 (2022-03-04)
Current COVID-19 vaccines and many clinical diagnostics are based on the structure and function of the SARS-CoV-2 spike ectodomain. Using hydrogen-deuterium exchange monitored by mass spectrometry, we have uncovered that, in addition to the prefusion structure determined by cryo-electron microscopy

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