View source for 3iz2


==C-alpha model fitted into the EM structure of Cx26M34Adel2-7==
<StructureSection load='3iz2' size='340' side='right'caption='[[3iz2]], [[Resolution|resolution]] 10.00&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3iz2]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3IZ2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3IZ2 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron crystallography, [[Resolution|Resolution]] 10&#8491;</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3iz2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3iz2 OCA], [https://pdbe.org/3iz2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3iz2 RCSB], [https://www.ebi.ac.uk/pdbsum/3iz2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3iz2 ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/CXB2_HUMAN CXB2_HUMAN] KID syndrome;Knuckle pads - leuconychia - sensorineural deafness;Autosomal dominant nonsyndromic sensorineural deafness type DFNA;Autosomal recessive nonsyndromic sensorineural deafness type DFNB;Palmoplantar keratoderma - deafness;Keratoderma hereditarium mutilans. Defects in GJB2 are the cause of deafness autosomal recessive type 1A (DFNB1A) [MIM:[https://omim.org/entry/220290 220290]. DFNB1A is a form of sensorineural hearing loss. Sensorineural deafness results from damage to the neural receptors of the inner ear, the nerve pathways to the brain, or the area of the brain that receives sound information.<ref>PMID:11439000</ref> <ref>PMID:14722929</ref> <ref>PMID:15666300</ref> <ref>PMID:15994881</ref> <ref>PMID:9328482</ref> <ref>PMID:9336442</ref> <ref>PMID:9529365</ref> <ref>PMID:9471561</ref> <ref>PMID:10830906</ref> <ref>PMID:11313763</ref> <ref>PMID:12239718</ref> <ref>PMID:12121355</ref> <ref>PMID:12786758</ref> <ref>PMID:15592461</ref> <ref>PMID:17660464</ref> <ref>PMID:19384972</ref>   Defects in GJB2 are the cause of deafness autosomal dominant type 3A (DFNA3A) [MIM:[https://omim.org/entry/601544 601544].  Defects in GJB2 are a cause of Vohwinkel syndrome (VS) [MIM:[https://omim.org/entry/124500 124500]. VS is an autosomal dominant disease characterized by hyperkeratosis, constriction on finger and toes and congenital deafness.<ref>PMID:12668604</ref> <ref>PMID:10369869</ref>   Defects in GJB2 are a cause of palmoplantar keratoderma with deafness (PPKDFN) [MIM:[https://omim.org/entry/148350 148350]. PPKDFN is an autosomal dominant disorder characterized by the association of palmoplantar hyperkeratosis with progressive, bilateral, high-frequency, sensorineural deafness.<ref>PMID:12668604</ref> <ref>PMID:9856479</ref> <ref>PMID:10757647</ref> <ref>PMID:10633135</ref> <ref>PMID:12372058</ref> <ref>PMID:15996214</ref> <ref>PMID:17993581</ref>   Defects in GJB2 are a cause of keratitis-ichthyosis-deafness syndrome (KID syndrome) [MIM:[https://omim.org/entry/148210 148210]; an autosomal dominant form of ectodermal dysplasia. Ectodermal dysplasias (EDs) constitute a heterogeneous group of developmental disorders affecting tissues of ectodermal origin. EDs are characterized by abnormal development of two or more ectodermal structures such as hair, teeth, nails and sweat glands, with or without any additional clinical sign. Each combination of clinical features represents a different type of ectodermal dysplasia. KID syndrome is characterized by the association of hyperkeratotic skin lesions with vascularizing keratitis and profound sensorineural hearing loss. Clinical features include deafness, ichthyosis, photobia, absent or decreased eyebrows, sparse or absent scalp hair, decreased sweating and dysplastic finger and toenails.  Defects in GJB2 are the cause of Bart-Pumphrey syndrome (BPS) [MIM:[https://omim.org/entry/149200 149200]. BPS is an autosomal dominant disorder characterized by sensorineural hearing loss, palmoplantar keratoderma, knuckle pads, and leukonychia, It shows considerable phenotypic variability.<ref>PMID:15482471</ref> <ref>PMID:15952212</ref>   Defects in GJB2 are the cause of ichthyosis hystrix-like with deafness syndrome (HID syndrome) [MIM:[https://omim.org/entry/602540 602540]. HID syndrome is an autosomal-dominant inherited keratinizing disorder characterized by sensorineural deafness and spiky hyperkeratosis affecting the entire skin. HID syndrome is considered to differ from the similar KID syndrome in the extent and time of occurrence of skin symptoms and the severity of the associated keratitis.
== Function ==
[https://www.uniprot.org/uniprot/CXB2_HUMAN CXB2_HUMAN] One gap junction consists of a cluster of closely packed pairs of transmembrane channels, the connexons, through which materials of low MW diffuse from one cell to a neighboring cell.

==See Also==
*[[Connexin 3D structure|Connexin 3D structure]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Cone A]]
[[Category: Fujiyoshi Y]]
[[Category: Hiroaki Y]]
[[Category: Inukai S]]
[[Category: Nicholson BJ]]
[[Category: Oshima A]]
[[Category: Smock A]]
[[Category: Sosinsky GE]]
[[Category: Tani K]]
[[Category: Toloue MM]]