Recombinant Human Cystatin SA / CST2 Protein (His Tag)
Beta LifeScience
SKU/CAT #: BLPSN-1539
Recombinant Human Cystatin SA / CST2 Protein (His Tag)
Beta LifeScience
SKU/CAT #: BLPSN-1539
Catalog No.: BLPSN-1539
Product Overview
| Tag | His |
| Host Species | Human |
| Accession | NP_001313.1 |
| Synonym | CST2, MGC71924 |
| Background | Cystatin-SA, also known as Cystatin-2, Cystatin-S5 and CST2, is a secreted protein which belongs to thecystatin family. Cystatin-2 / CST2 is expressed in submandibular and sublingual saliva but not in parotid saliva (at protein level). It is also expressed in submandibular gland and parotid gland. 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 the kininogens. The type 2 cystatin proteins are a class of cysteine proteinase inhibitors found in a variety of human fluids and secretions, where they appear to provide protective functions. The CST1, CST2, CST4, and CST5 are expressed in differential, tissue-specific patterns. Expression of CST2 and CST5 is restricted to the submandibular and parotid glands, while CST1 and CST4 are expressed in these tissues and in the lacrimal gland. |
| Description | A DNA sequence encoding the human CST2 (NP_001313.1) (Met 1-Ala 141) was fused with a His tag at the C-terminus. |
| Source | HEK293 |
| Predicted N Terminal | Trp 21 |
| AA Sequence | Met 1-Ala 141 |
| Molecular Weight | The secreted recombinant human CST2 consists of 132 a.a. and migrates as an approximately 16 kDa band in SDS-PAGE under reducing conditions as predicted. |
| Purity | >98% as determined by SDS-PAGE |
| Endotoxin | < 1.0 EU per μg of the protein as determined by the LAL method |
| Bioactivity | Please contact us for detailed information |
| Formulation | Lyophilized from sterile PBS, pH 7.4. |
| Stability | The recombinant proteins are stable for up to 1 year from date of receipt at -70°C. |
| Usage | For Research Use Only |
| Storage | Store the protein under sterile conditions at -20°C to -80°C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles. |
