Recombinant Human CST4 Protein, His-tagged

• Cat.No.: CST4-189H
• Product Overview: Recombinant human CST4 protein with His tag was expressed in HEK293.

Specification

• Species: Human
• Source: HEK293
• Tag: His
• Protein Length: 141
• Description: 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. The cystatin locus on chromosome 20 contains the majority of the type 2 cystatin genes and pseudogenes. This gene is located in the cystatin locus and encodes a type 2 salivary cysteine peptidase inhibitor. The protein is an S-type cystatin, based on its high level of expression in saliva, tears and seminal plasma. The specific role in these fluids is unclear but antibacterial and antiviral activity is present, consistent with a protective function.
• Form: Lyophilized
• Molecular Mass: 15 kDa
• AA Sequence: MARPLCTLLLLMATLAGALASSSKEENRIIPGGIYDADLNDEWVQRALHFAISEYNKATEDEYYRRPLQVLRAREQTFGGVNYFFDVEVGRTICTKSQPNLDTCAFHEQPELQKKQLCSFEIYEVPWEDRMSLVNSRCQEA
• Purity: > 98%
• Applications: WB; ELISA; FACS; FC
• Stability: This bioreagent is stable at 4 centigrade (short-term) and -70 centigrade(long-term). After reconstitution, sample may be stored at 4 centigrade for 2-7 days and below -18 centigrade for future use.
• Storage: At -20 centigrade.
• Concentration: 1 mg/mL
• Storage Buffer: PBS (pH 7.4-7.5). Sterile-filtered colorless solution.
• Reconstitution: Reconstitute in sterile distilled H2O to no less than 100 μg/mL; dilute reconstituted stock further in other aqueous solutions if needed. Please review COA for lot-specific instructions. Final measurements should be determined by the end-user for optimal performance.

Gene Information

• Gene Name: CST4 cystatin S [ Homo sapiens (human) ]
• Official Symbol: CST4
• Synonyms: CST4; cystatin S; cystatin-S; cystatin 4; cystatin-4; cystatin-SA-III; salivary acidic protein 1; MGC71923
• Gene ID: 1472
• mRNA Refseq: NM_001899
• Protein Refseq: NP_001890
• MIM: 123857
• UniProt ID: P01036