COCH Proteins, cDNA Clones Research Reagents

All COCH reagents are produced in house and quality controlled, including 26 COCH Gene, 1 COCH Lysate, 1 COCH Protein, 2 COCH qPCR. All COCH reagents are ready to use.

COCH Protein (1)

    COCH cDNA Clone (26)

    NM_004086.2
    NM_007728.5

    COCH Lysate (1)

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      COCH Background

      Cochlin, also known as COCH-5B2 and COCH, is a secreted protein that contains one LCCL domain and two VWFA domains. It is an abundant inner ear protein expressed as multiple isoforms. Its function is also unknown, but it is suspected to be an extracellular matrix component. Cochlin and type II collagen are major constituents of the inner ear extracellular matrix, and Cochlin constitutes 70% of non-collagenous protein in the inner ear, the cochlin isoforms can be classified into three subgroups, p63s, p44s and p40s. The expression of cochlin is highly specific to the inner ear. Eleven missense mutation and one in-frame deletion have been reported in the COCH gene, causing hereditary progressive sensorineural hearing loss and vestibular dysfunction, deafness autosomal dominant type 9 (DFNA9). The co-localization of cochlin and type II collagen in the fibrillar substance in the subepithelial area indicate that cochlin may play a role in the structural homeostasis of the vestibule acting in concert with the fibrillar type II collagen bundles. Defects in COCH may contribute to Meniere disease which is an autosomal dominant disorder characterized by hearing loss associated with episodic vertigo.

      COCH References

      • Ikezono T, et al. (2005) Expression of cochlin in the vestibular organ of rats. ORL J Otorhinolaryngol Relat Spec. 67(5): 252-8.
      • Shindo S, et al. (2008) Spatiotemporal expression of cochlin in the inner ear of rats during postnatal development. Neurosci Lett. 444(2): 148-52.
      • Hosokawa S, et al. (2010) Ultrastructural localization of cochlin in the rat cochlear duct. Audiol Neurootol. 15(4): 247-53.

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