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Cat. No.: HY-P2973

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Aspergillopepsin I

(Synonyms: Aspergillus acid protease)

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Aspergillopepsin I (Aspergillus acid protease) is a metal-containing aspartic protease that catalyzes the hydrolysis of peptide bonds in soybean 7S globulin, soybean 11S globulin and various proteins, with broad specificity. Aspergillopepsin I is intended for use in wine production, where it hydrolyzes haze-forming proteins into small peptides to prevent turbidity during storage. Aspergillopepsin I can be used in studies related to soybean protein hydrolysis and wine production.

For research use only. We do not sell to patients.

CAS No.: 9025-49-4

Storage:

Please store the product under the recommended conditions in the Certificate of Analysis.

Aspergillopepsin I Chemical Structure

CAS No.: 9025-49-4

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Use of MCE Products

Fluorescent Dye

Strong Fluorescence Signal / Multi-Disciplinary Applications / High Fluorescence Specificity

Biological Activity
- Description
- In Vitro
- In Vivo
- EC Number
- Enzyme Activity
Chemical Information
Solvent & Solubility
- In Vitro
Purity & Documentation
References
Calculators
Help & FAQs
Classifications
Bioz

Biological Activity

Description

In Vitro

Aspergillopepsin I can hydrolyze defatted soybean meal, increasing the contents of soluble protein, amino nitrogen, free amino acids, and small molecular peptides with molecular weight <3 kDa in the hydrolysate^[1].
Aspergillopepsin I exhibits the highest relative activity at pH 3.5 and 35-40°C. It maintains pH stability within the range of pH 3.0-3.5, thermal stability within 20-50°C, and possesses salt tolerance. Its activity is promoted by K⁺ and Zn²⁺, and slightly inhibited by Mg²⁺, Cu²⁺, Co²⁺ and Fe²⁺^[1].
Aspergillopepsin I does not induce gene mutations in bacterial strains, nor does it cause chromosomal aberrations in mammalian cells^[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

The no-observed-adverse-effect level (NOAEL) of Aspergillopepsin I for 90-day oral administration in rats is 919 mg TOS/kg bw/day; its amino acid sequence matches known respiratory allergens, presenting a low but non-excludable risk of dietary allergic sensitization^[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

EC Number

3.4.23.18

Enzyme Activity

≥700000 U/g soild

Chemical Information

CAS No. 9025-49-4
Appearance Solid
Color Light yellow to light brown
SMILES

[Aspergillopepsin I]
Synonyms

Aspergillus acid protease
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

Solvent & Solubility

In Vitro:

H₂O : 50 mg/mL (Need ultrasonic)

View the Complete Stock Solution Preparation Table

Purity & Documentation

Select Batch:

Purity: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (268 KB)
SDS (558 KB)
- English - EN (558 KB)
- Français - FR (558 KB)
- Deutsch - DE (558 KB)
- Norwegian - NO (558 KB)
- Español - ES (558 KB)
- Swedish - SV (558 KB)
- Italian - IT (558 KB)
- Korean - KR (558 KB)
- Portuguese - PT (558 KB)
COA (2659 KB)
Elemental Analysis Report (2659 KB)
HNMR (2659 KB)
CNMR (2659 KB)
RP-HPLC (2659 KB)
NP-HPLC (2659 KB)
MS (2659 KB)
LCMS (2659 KB)
IR (2659 KB)
GC (2659 KB)
OR (2659 KB)
SDS-PAGE (2659 KB)
SEC-HPLC (2659 KB)
Other Report (2659 KB)
Handling Instructions (2659 KB)

References

[1]. Yao H, et al. Aspergillopepsin I, an Acid Protease from the Marine Fungus Aspergillus Tubingensis: Purification, Characterisation and Visualisation of its Hydrolysis of Soybean Protein. Characterisation and Visualisation of its Hydrolysis of Soybean Protein.

[2]. EFSA Panel on Food Contact Materials, et al. Safety evaluation of a food enzyme containing aspergillopepsin I and II from the Aspergillus niger var. macrosporus strain PTG8398. EFSA J. 2022;20(8):e07471. Published 2022 Aug 11. [Content Brief]

Calculators

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Help & FAQs

How should lyophilized recombinant proteins be reconstituted and stored?

1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss.

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MOQ

Minimum order quantity

100 mg

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