Human Cystatin B Recombinant Protein

CSTB protein,

Human Cystatin B Recombinant Protein expressed in E. coli with His-tag. Sequence domain: 1-98aa. Application(s): Enzyme Activity, SDS-PAGE. Endotoxin: < 1 EU per 1ug of protein (determined by LAL method).

Product Info Summary

SKU: PROTP04080
Size: Starting from 10ug
Source: E. coli
Application: Enzyme Activity, SDS-PAGE

Product Name

Human Cystatin B Recombinant Protein

View all CSTB recombinant proteins

SKU/Catalog Number

PROTP04080

Size

Starting from 10ug

Tag

His-Tag

Description

Human Cystatin B Recombinant Protein expressed in E. coli with His-tag. Sequence domain: 1-98aa. Application(s): Enzyme Activity, SDS-PAGE. Endotoxin: < 1 EU per 1ug of protein (determined by LAL method).

Storage & Handling

Can be stored at 2°C to 8°C for 1 week. For long-term storage, aliquot and store at -20°C to -80°C. Avoid repeated freeze-thaw cycles. (Ships with gel ice.)

Cite This Product

Human Cystatin B Recombinant Protein (Boster Biological Technology, Pleasanton CA, USA, Catalog # PROTP04080)

Form

Liquid

Formulation

20mM Tris-HCl buffer (pH 8.0) containing 50mM NaCl

Concentration

1mg/ml (determined by Bradford assay)

Purity

> 95% by SDS-PAGE

Predicted MW

11.1 kDa

Endotoxin

< 1 EU per 1ug of protein (determined by LAL method)

Amino Acid Sequence

Human, P04080, 1-98aa; MGSSHHHHHH SSGLVPRGSH MMCGAPSATQ PATAETQHIA DQVRSQLEEK ENKKFPVFKA VSFKSQVVAG TNYFIKVHVG DEDFVHLRVF QSLPHENKPL TLSNYQTNKA KHDELTYF

Bioactivity

The IC50 value is < 3.0nM. The inhibitory function of Cystatin B on protease activity of papain was measured by a fluorometric assay using Z-FR-AMC at pH 7.5 at 25°C.

Validation Images & Assay Conditions

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Size

Total: $265

SKU:PROTP04080

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Lead time for this item is typically 7-10 days

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This product is for Research Use Only. Not for use in diagnostic procedures.

Update date: May 10, 2026