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About This Item
UNSPSC Code:
12352203
NACRES:
NA.41
biological source
mouse
Quality Level
conjugate
unconjugated
antibody form
purified immunoglobulin
antibody product type
primary antibodies
clone
4E5-1F2, monoclonal
form
buffered aqueous solution
mol wt
antigen ~72.75 kDa
species reactivity
human
technique(s)
indirect ELISA: suitable
western blot: 1-5 μg/mL
isotype
IgG2bκ
NCBI accession no.
UniProt accession no.
shipped in
dry ice
storage temp.
−20°C
target post-translational modification
unmodified
Gene Information
human ... KRT20(54474)
Related Categories
General description
The protein encoded by this gene is a member of the keratin family. The keratins are intermediate filament proteins responsible for the structural integrity of epithelial cells and are subdivided into cytokeratins and hair keratins. The type I cytokeratins consist of acidic proteins which are arranged in pairs of heterotypic keratin chains. This cytokeratin is a major cellular protein of mature enterocytes and goblet cells and is specifically expressed in the gastric and intestinal mucosa. The type I cytokeratin genes are clustered in a region of chromosome 17q12-q21. (provided by RefSeq)
Immunogen
KRT20 (AAH31559, 1 a.a. ~ 424 a.a) full-length recombinant protein with GST tag. MW of the GST tag alone is 26 KDa.
Sequence
MDFSRRSFHRSLSSSLQAPVVSTVGMQRLGTTPSVYGGAGGRGIRISNSRHTVNYGSDLTGGGDLFVGNEKMAMQNLNDRLASYLEKVRTLEQSNSKLEVQIKQWYETNAPRAGRDYSAYYRQIEELRSQIKDAQLQNARCVLQIDNAKLAAEDFRLKYETERGIRLTVEADLQGLNKVFDDLTLHKTDLEIQIEELNKDLALLKKEHQEEVDGLHKHLGNTVNVEVDAAPGLNLGVIMNEMRQKYEVMAQKNLQEAKEQFERQTAVLQQQVTVNTEELKGTEVQLTELRRTSQSLEIELQSHLSMKESLEHTLEETKARYSSQLANLQSLLSSLEAQLMQIRSNMERQNNEYHILLDIKTRLEQEIATYRRLLEGEDVKTTEYQLSTLEERDIKKTRKIKTVVQEVVDGKVVSSEVKEVEENI
Sequence
MDFSRRSFHRSLSSSLQAPVVSTVGMQRLGTTPSVYGGAGGRGIRISNSRHTVNYGSDLTGGGDLFVGNEKMAMQNLNDRLASYLEKVRTLEQSNSKLEVQIKQWYETNAPRAGRDYSAYYRQIEELRSQIKDAQLQNARCVLQIDNAKLAAEDFRLKYETERGIRLTVEADLQGLNKVFDDLTLHKTDLEIQIEELNKDLALLKKEHQEEVDGLHKHLGNTVNVEVDAAPGLNLGVIMNEMRQKYEVMAQKNLQEAKEQFERQTAVLQQQVTVNTEELKGTEVQLTELRRTSQSLEIELQSHLSMKESLEHTLEETKARYSSQLANLQSLLSSLEAQLMQIRSNMERQNNEYHILLDIKTRLEQEIATYRRLLEGEDVKTTEYQLSTLEERDIKKTRKIKTVVQEVVDGKVVSSEVKEVEENI
Biochem/physiol Actions
KRT20 (keratin 20) helps in intermediate filament organization. In metastatic colorectal cancer, it can be used as a biomarker for checking circulating tumor cells.
Physical form
Solution in phosphate buffered saline, pH 7.4
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Storage Class Code
10 - Combustible liquids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Regulatory Information
常规特殊物品
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Cytokeratin 20 improves the detection of circulating tumor cells in patients with colorectal cancer.
Charlotte Welinder et al.
Cancer letters, 358(1), 43-46 (2014-12-22)
Cytokeratin 20 (CK20) is a well-established marker for colon epithelium. Herein, we suggest that CK20 is a biomarker for detecting circulating tumor cells (CTCs) in patients with metastatic colorectal cancer. Blood specimens (7.5 mL) were collected during surgery after liver mobilization
Qin Zhou et al.
The Journal of biological chemistry, 281(24), 16453-16461 (2006-04-13)
Keratin polypeptide 20 (K20) is an intermediate filament protein with preferential expression in epithelia of the stomach, intestine, uterus, and bladder and in Merkel cells of the skin. K20 expression is used as a marker to distinguish metastatic tumor origin
Qin Zhou et al.
Molecular biology of the cell, 14(7), 2959-2971 (2003-07-15)
Of the >20 epithelial keratins, keratin 20 (K20) has an unusual distribution and is poorly studied. We began to address K20 function, by expressing human wild-type and Arg80-->His (R80H) genomic (18 kb) and cDNA K20 in cells and mice. Arg80
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