Cystatin-B (1-98, His-Tag) Human Protein
Specifications
| Product Data | |
| Species | Human |
|---|---|
| Expression Host | E. coli |
| Expression cDNA Clone or AA Sequence | |
| Tag | His-Tag |
| Predicted MW | 13 kDa (118aa) confirmed by MALDI-TOF |
| Concentration | 1mg/ml (determined by Bradford assay) |
| Purity | > 95% by SDS-PAGE |
| Presentation State | Purified |
| Buffer | Liquid in. 20mM Tris-HCl buffer (pH 8.0) containing 50mM NaCl |
| Endotoxin | < 1 EU per 1ug of protein (determined by LAL method) |
| Preparation | Liquid purified protein by using conventional chromatography |
| Recommended Dilution | SDS-PAGE |
| Protein Description | Recombinant Human CSTB, fused to His-tag, was expressed in E.coli. |
| Note | NCBI Accession No.: NP_000091 |
| Storage | Can be stored at +2°C to +8°C for 1 week. For long term storage, aliquot and store at -20°C to -80C. Avoid repeated freezing and thawing cycles. |
| Stability | Shelf life: one year from despatch. |
| Shipping | Blue Ice |
| Reference Data | |
| RefSeq | NP_000091 |
| Locus ID | 1476 |
| UniProt ID | P04080 |
| Cytogenetics | 21q22.3 |
| Synonyms | CystatinB, Cystatin B, CSTB, Stefin B, PME, CST6, CystatinB CHROW21, CPI B, CYTB, EPM1, Liver thiol proteinase inhibitor, STFB. |
| Summary | The cystatin superfamily encompasses proteins that contain multiple cystatin-like sequences. Some of the members are active cysteine protease inhibitors, while others have lost or perhaps never acquired this inhibitory activity. There are three inhibitory families in the superfamily, including the type 1 cystatins (stefins), type 2 cystatins and kininogens. This gene encodes a stefin that functions as an intracellular thiol protease inhibitor. The protein is able to form a dimer stabilized by noncovalent forces, inhibiting papain and cathepsins l, h and b. The protein is thought to play a role in protecting against the proteases leaking from lysosomes. Evidence indicates that mutations in this gene are responsible for the primary defects in patients with progressive myoclonic epilepsy (EPM1). One type of mutation responsible for EPM1 is the expansion in the promoter region of this gene of a CCCCGCCCCGCG repeat from 2-3 copies to 30-78 copies. provided by RefSeq, Jul 2016 |
| Protein Categories | Intracellular Proteins, Nervous system Diseases |
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