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Merck
CN

K0253

Keratin from human epidermis

aqueous solution

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About This Item

CAS Number:
UNSPSC Code:
12352202
NACRES:
NA.61
MDL number:
Form:
urea solution
Assay:
≥90% (SDS-PAGE)
Biological source:
human epidermis
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biological source

human epidermis

assay

≥90% (SDS-PAGE)

form

urea solution

technique(s)

ELISA: suitable

UniProt accession no.

storage temp.

2-8°C

Quality Level

Gene Information

human ... KRT1(3848)

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General description

Keratins are characteristic intermediate filament proteins of the epithelia. In human, keratin is classified into type I and type II. About 54 genes encodes for the keratin protein. The keratin 1 (KRT1) gene is mapped to human chromosome 12q13.13. It is the primary component of hair, skin and nails.

Application

Keratin from human epidermis has been used:
  • as an analyte and a cross-reactant in the antibody-immobilized chip for testing selectivity coefficients
  • as a standard in extracellular matrix (ECM) protein in in vitro protein degradation assays.
  • asa a standard in enzyme linked immunosorbent assay (ELISA)

Biochem/physiol Actions

Keratins are important for the mechanical stability and integrity of epithelial cells and tissues. Some keratins also have regulatory functions and are involved in intracellular signaling pathways, e.g. protection from stress, wound healing, and apoptosis. This diverse group of cytoskeletal scaffolding proteins form intermediate filament networks which provide structural support to keratinocytes that maintain the integrity of the skin. Expression of keratin genes is usually regulated by differentiation of the epidermal cells within the stratifying squamous epithelium.

Physical form

Solution in 8 M urea, 50 mM Tris, 0.1 M β-mercaptoethanol and 0.1% sodium azide, pH 8.4

hcodes

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Skin Sens. 1

Storage Class

10 - Combustible liquids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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N O Ku et al.
The Journal of cell biology, 143(7), 2023-2032 (1998-12-29)
Simple epithelia express keratins 8 (K8) and 18 (K18) as their major intermediate filament (IF) proteins. One important physiologic function of K8/18 is to protect hepatocytes from drug-induced liver injury. Although the mechanism of this protection is unknown, marked K8/18
Next-generation sequencing detection and characterization of a heterozygous novel splice junction mutation in the 2B domain of KRT1 in a family with diffuse palmoplantar keratoderma
Banerjee S, et al.
Experimental Dermatology, 24(2), 152-155 (2015)
Francesca Angiero et al.
Anticancer research, 33(6), 2673-2677 (2013-06-12)
The adenomatoid odontogenic tumor (AOT) is an uncommon tumor of odontogenic origin, composed of odontogenic epithelium and characterized by slow but progressive growth. We report a rare case of AOT in an 18-year-old, who presented with a palpable bony-hard swelling
Jyh-Hong Lee et al.
Journal of biomedical optics, 14(1), 014008-014008 (2009-03-05)
Atopic dermatitis (AD) is characterized by hyperkeratosis of epidermis and fibrosis within dermis in chronic skin lesions. Thus far, the histology of skin lesions has been evaluated only by examination of excised specimens. A noninvasive in vivo tool is essential
B B Hogans et al.
Journal of cellular physiology, 137(2), 346-352 (1988-11-01)
To determine whether activation of protein kinase C is involved in the proliferation of interleukin-3 (IL-3) -dependent cells, we examined the effect of tumor-promoting phorbol esters on the in vitro proliferation of the IL-3-dependent cell lines FD and DA-1. The

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