The CSTB Polyclonal Antibody (CAB21370) is a high-quality antibody developed for reliable detection and analysis of target proteins. 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.
This antibody is validated for use in WB, IHC-P, ELISA applications and has demonstrated reactivity against Human samples.
Product Name:
CSTB Polyclonal Antibody
SKU:
CAB21370
Size:
100μL, 20μL
Reactivity:
Human
Conjugate:
Unconjugated
Immunogen:
Recombinant protein (or fragment).This information is considered to be commercially sensitive.
Tested Applications:
WBIHC-PELISA
Recommended Dilution:
WB
1:500 - 1:2000
IHC-P
1:50 - 1:200
ELISA
Recommended starting concentration is 1 μg/mL. Please optimize the concentration based on your specific assay requirements.
Synonyms:
PME, ULD, CST6, EPM1, STFB, CPI-B, EPM1A, CSTB
Positive Sample:
Hep G2, SW480, DU 145, A549, A-431, MCF7
Cellular Localization:
Cytoplasm, Nucleus.
Calculated MW:
11kDa
Observed MW:
Refer to figures
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.
Purification Method
Affinity purification
Gene ID
1476
Buffer Information
Store at -20℃. Avoid freeze / thaw cycles. Buffer: PBS containing 50% glycerol, preserved with proclin300 or sodium azide, pH 7.3.
Western blot analysis of various lysates using CSTB Rabbit pAb (CAB21370) at 1:1000 dilution. Secondary antibody: HRP-conjugated Goat anti-Rabbit IgG (H+L) (AS014) at 1:10000 dilution. Lysates/proteins: 25μg per lane. Blocking buffer: 3% nonfat dry milk in TBST. Detection: ECL Basic Kit (AbGn00020). Exposure time: 10s.
Immunohistochemistry analysis of paraffin-embedded Human thyroid cancer using CSTB Rabbit pAb (CAB21370) at dilution of 1:100 (40x lens). High pressure antigen retrieval performed with 0.01M Citrate buffer (pH 6.0) prior to IHC staining.
