Involucrin Antibody (SPM259) [Janelia Fluor® 669]

Janelia Fluor 669

Monoclonal Mouse IgG₁ kappa Clone # SPM259

Please see the vial label for concentration. If unlisted please contact technical services.

Purified involucrin from human keratinocytes (Uniprot: P07476)

aa 421-568

Does not react with Mouse.

Cytoplasmic

It recognizes a protein of 66kDa-170kDa, identified as involucrin. In Western blotting of cultured human keratinocytes, this monoclonal antibody reacts with a 120kDa protein. It stains the involucrin in a variety of sizes: 170kDa in MCF-7 cells, a doublet of ~115kDa and 150kDa in gorilla and owl monkey, 66kDa in dog, and a doublet of 105kDa in pig. Its epitope maps between codon 421-568 of human involucrin. Involucrin is expressed in a range of stratified squamous epithelia, including the cornea, which lacks a distinct cornified layer. In normal epidermis, it is first expressed in the upper spinous layers, and in keratinocyte cultures, all cells that have left the basal layer express it. Involucrin expression is altered in pathological conditions: in psoriasis and other benign epidermal hyperplasias, involucrin expression begins closer to the basal layer than normal; expression is abnormal in squamous cell carcinomas and premalignant lesions, and is reduced in severe dysplasias of the larynx and cervix.

Squamous Cell Terminal Differentiation Marker

Monoclonal

Mouse

IgG₁ kappa

Protein A or G purified

50mM Sodium Borate

0.05% Sodium Azide

Please see the vial label for concentration. If unlisted please contact technical services.

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Store at 4C in the dark.