background:
Repetin is a 784 amino acid secreted protein that belongs to the S100-fused protein family. Repetin is an extracellular epidermal matrix protein that is expressed in the epidermis and at high levels in eccrine sweat glands, the inner sheaths of hair roots and the filiform papilli of the tongue. A multifunctional epidermal matrix protein, repetin is involved in the cornified cell envelope formation. Containing two EF-hand domains, repetin’s recombinant N-terminal domain binds calcium reversibly. Repetin and trichohyalin may compensate for absent loricrin. The repetin gene contains three exons, two introns and spans at least 5.6 kb. The repetin gene is conserved in cow, mouse and rat, and maps to human chromosome 1q21.3.
Function:
Involved in the cornified cell envelope formation. Multifunctional epidermal matrix protein. Reversibly binds calcium.
Subcellular Location:
Secreted; extracellular space; extracellular matrix.
Tissue Specificity:
Repetin is a multifunctional epidermal matrix protein involved in the cornified cell envelope formation. It reversibly binds calcium. Expression is scattered in the normal epidermis but strong in the acrosyringium, the inner hair root sheat and in the filiform papilli of the tongue.
Post-translational modifications:
Potential substrate of transglutaminase. Some arginines are probably converted.
Phosphorylated upon DNA damage, probably by ATM or ATR.
Similarity:
Belongs to the S100-fused protein family.
Contains 2 EF-hand domains.
Database links:
Entrez Gene: 126638 Human
Entrez Gene: 20129 Mouse
Omim: 613259 Human
SwissProt: Q6XPR3 Human
SwissProt: P97347 Mouse
Unigene: 376144 Human
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
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