Invitrogen™ Cystatin S Polyclonal Antibody

Goat Polyclonal Antibody

Brand:  Invitrogen™ PA547117

Product Code. 15517612

Description

In direct ELISAs, approximately 30% cross-reactivity with recombinant human (rh) Cystatin SA and rhCystatin SN is observed and 5% cross-reactivity with rhCystatin C and rhCystatin D is observed, and less than 1% cross-reactivity with rhCystatin A, rhCystatin B, rhCystatin E/M, rhFetuin A, and rhFetuin B is observed. Reconstitute at 0.2 mg/mL in sterile PBS. Endoxin level is <0.10 EU per 1 μg of the antibody by the LAL method.

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.

Specifications

• Antigen: Cystatin S
• Classification: Polyclonal
• Conjugate: Unconjugated
• Gene: CST4
• Gene Alias: CST4; cystatin 4; cystatin S; cystatin-4; Cystatin-S; cystatin-SA-III; Salivary acidic protein 1
• Host Species: Goat
• Purification Method: Antigen affinity chromatography
• Regulatory Status: RUO
• Gene ID (Entrez): 1472
• Content And Storage: -20°C, Avoid Freeze/Thaw Cycles
• Form: Lyophilized

• Applications: Immunoprecipitation, Western Blot
• Concentration: 0.2 mg/mL
• Formulation: PBS with 5% trehalose and No Preservative
• Gene Accession No.: P01036
• Gene Symbols: CST4
• Immunogen: Mouse myeloma cell line NS0-derived recombinant human Cystatin S Ser21-Ala141.
• Quantity: 100 μg
• Primary or Secondary: Primary
• Target Species: Human
• Product Type: Antibody
• Isotype: IgG