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Cystatin C Cell Lysate | CST3 cell lysate

Rat Cystatin C HEK293 Overexpression Lysate

Gene Names
Cst3; CYSC
Applications
Western Blot
Synonyms
Cystatin C; Rat Cystatin C HEK293 Overexpression Lysate; Rat Cystatin C/CST3 HEK293 Cell Lysate (WB positive control); cystatin C; CST3 cell lysate
Ordering
For Research Use Only!
Host
HEK293 Cells
Form/Format
1x Sample Buffer (1x modified RIPA buffer+1x SDS loading buffer).
Modified RIPA Lysis Buffer: 50 mM Tris-HCl pH 7.4, 150 mM NaCl, 1mM EDTA, 1% Triton X-100, 0.1% SDS, 1% Sodium deoxycholate, 1mM PMSF.
Sequence Positions
131aa
Sequence
Met1-Ala140
Applicable Applications for CST3 cell lysate
Western Blot (WB)
Application Notes
WB: Use at an assay dependent dilution.
Species
Rat
Recommend Usage
1. Centrifuge the tube for a few seconds and ensure the pellet at the bottom of the tube.2. Re-dissolve the pellet using 200uL pure water and boil for 2-5 min.
Sequence Construction
A DNA sequence encoding the rat CST3 (P14841-1) (Met 1-Ala 140) was fused with a polyhistidine tag at the C-terminus.
Preparation Method
Cell lysate was prepared by homogenization of the over-expressed cells in ice-cold modified RIPA Lysis Buffer with cocktail of protease inhibitors. Cell debris was removed by centrifugation. Protein concentration was determined by Bradford assay (protein assay, Microplate Standard assay). The cell lysate was boiled for 5 min in 1 x SDS loading buffer (50mM Tris-HCl pH 6.8, 12.5% glycerol, 1% sodium dodecylsulfate, 0.01% bromophenol blue) containing 5% b-mercaptoethanol, and lyophilized.
Preparation and Storage
Store at 4 degree C for up to twelve months from date of receipt. After re-dissolution, aliquot and store at -80 degree C for up to twelve months. Avoid repeated freeze-thaw cycles.
Samples are stable for up to twelve months from date of receipt.
Related Product Information for CST3 cell lysate
Cystatin C, also known as Cystatin-3 (CST3) is a secreted type 2 cysteine protease inhibitor synthesized in all nucleated cells, has been proposed as a replacement for serum creatinine for the assessment of renal function, particularly to detect small reductions in glomerular filtration rate. The mature, active form of human cystatin C is a single non-glycosylated polypeptide chain consisting of 120 amino acid residues, with a molecular mass of 13, 343-13, 359 Da, and containing four characteristic disulfide-paired cysteine residues. Cystatin C is a low-molecular-weight protein that has been proposed as a marker of renal function that could replace creatinine. Indeed, the concentration of Cystatin C is mainly determined by glomerular filtration and is particularly of interest in clinical settings where the relationship between creatinine production and muscle mass impairs the clinical performance of creatinine. Since the last decade, numerous studies have evaluated its potential use in measuring renal function in various populations. More recently, other potential developments for its clinical use have emerged. In almost all the clinical studies, Cystatin C demonstrated a better accuracy than serum creatinine in discriminating normal from impaired kidney function, but controversial results have been obtained by comparing this protein with other indices of kidney disease, especially serum creatinine-based equations, such as early atherosclerosis, Alzheimer's dementia, vascular aneurysms, hyperhomocysteinaemia and other neurodegenerative diseases. Cystatin C could be a useful clinical tool to identify HIV-infected persons. In addition, its expression is up-regulated in malignance of certain tumor progression.

This Rat Cystatin C overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of Cystatin C protein from the overexpression lysate was verified.
References
Mares J, et al. (2003) Use of cystatin C determination in clinical diagnostics. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub. 147(2): 177-80.Mussap M, et al. (2004) Biochemistry and clinical role of human cystatin C. Crit Rev Clin Lab Sci. 41(5-6): 467-550.Sronie-Vivien S, et al. (2008) Cystatin C: current position and future prospects. Clin Chem Lab Med. 46(12): 1664-86.Taglieri N, et al. (2009) Cystatin C and cardiovascular risk. Clin Chem. 55(11): 1932-43.

NCBI and Uniprot Product Information

NCBI GI #
NCBI GeneID
NCBI Accession #
NCBI GenBank Nucleotide #
UniProt Accession #
Molecular Weight
15,437 Da
NCBI Official Full Name
cystatin-C
NCBI Official Synonym Full Names
cystatin C
NCBI Official Symbol
Cst3
NCBI Official Synonym Symbols
CYSC
NCBI Protein Information
cystatin-C; Cystatin C (cysteine proteinase inhibitor); cystatin 3; cystatin-3
UniProt Protein Name
Cystatin-C
Protein Family
UniProt Gene Name
Cst3
UniProt Entry Name
CYTC_RAT

NCBI Description

extracellular cysteine protease inhibitor that may be involved in amyloidosis [RGD, Feb 2006]

Uniprot Description

CST3: As an inhibitor of cysteine proteinases, this protein is thought to serve an important physiological role as a local regulator of this enzyme activity. Defects in CST3 are the cause of amyloidosis type 6 (AMYL6); also known as hereditary cerebral hemorrhage with amyloidosis (HCHWA), cerebral amyloid angiopathy (CAA) or cerebroarterial amyloidosis Icelandic type. AMYL6 is a hereditary generalized amyloidosis due to cystatin C amyloid deposition. Cystatin C amyloid accumulates in the walls of arteries, arterioles, and sometimes capillaries and veins of the brain, and in various organs including lymphoid tissue, spleen, salivary glands, and seminal vesicles. Amyloid deposition in the cerebral vessels results in cerebral amyloid angiopathy, cerebral hemorrhage and premature stroke. Cystatin C levels in the cerebrospinal fluid are abnormally low. Genetic variations in CST3 are associated with age- related macular degeneration type 11 (ARMD11). ARMD is a multifactorial eye disease and the most common cause of irreversible vision loss in the developed world. In most patients, the disease is manifest as ophthalmoscopically visible yellowish accumulations of protein and lipid that lie beneath the retinal pigment epithelium and within an elastin-containing structure known as Bruch membrane. Belongs to the cystatin family.

Protein type: Secreted, signal peptide; Inhibitor; Secreted

Cellular Component: extracellular space; nuclear membrane; contractile fiber; lysosome; endoplasmic reticulum; extracellular region; multivesicular body; cell projection; cell soma; perinuclear region of cytoplasm; axon; cytoplasm; basement membrane; vesicle

Molecular Function: protease binding; protease inhibitor activity; beta-amyloid binding; endopeptidase inhibitor activity; cysteine protease inhibitor activity

Biological Process: salivary gland development; apoptosis; response to toxin; negative regulation of peptidase activity; defense response; response to organic cyclic substance; response to carbohydrate stimulus; response to estradiol stimulus; positive regulation of cell proliferation; fibril organization and biogenesis; circadian sleep/wake cycle, REM sleep; response to axon injury; negative regulation of proteolysis; response to drug; response to nutrient levels; response to inorganic substance; male gonad development; regulation of programmed cell death; Sertoli cell development; cell activation; eye development; response to hypoxia; brain development; response to oxidative stress; positive regulation of DNA replication; embryo implantation; regulation of tissue remodeling

Research Articles on CST3

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Product Notes

The CST3 cst3 (Catalog #AAA8117351) is a Cell Lysate produced from HEK293 Cells and is intended for research purposes only. The product is available for immediate purchase. The immunogen sequence is 131aa. AAA Biotech's Cystatin C can be used in a range of immunoassay formats including, but not limited to, Western Blot (WB). WB: Use at an assay dependent dilution. Researchers should empirically determine the suitability of the CST3 cst3 for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process. The amino acid sequence is listed below: Met1-Ala14 0. It is sometimes possible for the material contained within the vial of "Cystatin C, Cell Lysate" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.

Precautions

All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.

Disclaimer

Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.

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