Homo sapiens Protein: KRTAP4-3
Summary
InnateDB Protein IDBP-248292.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol KRTAP4-3
Protein Name keratin associated protein 4-3
Synonyms
Species Homo sapiens
Ensembl Protein ENSP00000375151
InnateDB Gene IDBG-48832 (KRTAP4-3)
Protein Structure
UniProt Annotation
Function In the hair cortex, hair keratin intermediate filaments are embedded in an interfilamentous matrix, consisting of hair keratin-associated proteins (KRTAP), which are essential for the formation of a rigid and resistant hair shaft through their extensive disulfide bond cross-linking with abundant cysteine residues of hair keratins. The matrix proteins include the high- sulfur and high-glycine-tyrosine keratins.
Subcellular Localization
Disease Associations
Tissue Specificity Expressed specifically in the middle/uper portions of the hair cortex. Not detected in the hair matrix or cuticle. {ECO:0000269PubMed:15955084}.
Comments
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 0 experimentally validated interaction(s) in this database.
Gene Ontology

Molecular Function
Accession GO Term
Biological Process
GO:0007568 aging
GO:0042633 hair cycle
Cellular Component
GO:0045095 keratin filament
Protein Structure and Domains
PDB ID
InterPro IPR002494 Keratin-associated protein
PFAM PF01500
PF13885
PRINTS
PIRSF
SMART
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt Q9BYR4
PhosphoSite PhosphoSite-
TrEMBL
UniProt Splice Variant
Entrez Gene 85290
UniGene Hs.307023
RefSeq NP_149443
HUGO HGNC:18908
OMIM
CCDS CCDS42331
HPRD
IMGT
EMBL AC006070 AJ406935
GenPept CAC27574