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Newer gene family pages are available

This is our older gene family page that is no longer maintained. Please go to our new look gene family index to view a complete list of our new maintained gene families. More information can be found in our gene families help page.

We have created a mapping file (Excel) that will map most of the old families to the new. However because we have changed the way we assign families and how we organise them, this file may not map all the old families.

Gap junction proteins (connexins)

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Click on the Approved Gene Symbol to retrieve the complete gene record

Approved Symbol Approved Name Previous Symbols Synonyms Chromosome
GJA1 gap junction protein alpha 1 ODDD, GJAL CX43, ODD, ODOD, SDTY3 6q22.31
GJA3 gap junction protein alpha 3 CZP3 CX46 13q12.11
GJA4 gap junction protein alpha 4 CX37 1p34.3
GJA5 gap junction protein alpha 5 CX40 1q21.2
GJA6P gap junction protein alpha 6 pseudogene Xp22.13
GJA8 gap junction protein alpha 8 CAE1, CZP1, CAE CX50 1q21.2
GJA9 gap junction protein alpha 9 GJA10 CX59, CX58 1p34.3
GJA10 gap junction protein alpha 10 CX62 6q15
GJB1 gap junction protein beta 1 CMTX1, CMTX CX32 Xq13.1
GJB2 gap junction protein beta 2 DFNB1, DFNA3 CX26, NSRD1 13q12.11
GJB3 gap junction protein beta 3 DFNA2, EKV CX31 1p34.3
GJB4 gap junction protein beta 4 CX30.3 1p34.3
GJB5 gap junction protein beta 5 CX31.1 1p34.3
GJB6 gap junction protein beta 6 DFNA3, ED2 EDH, HED, CX30 13q12.11
GJB7 gap junction protein beta 7 CX25, bA136M9.1 6q14.3-q15
GJC1 gap junction protein gamma 1 GJA7 CX45 17q21.31
GJC2 gap junction protein gamma 2 GJA12 CX47, CX46.6, SPG44 1q42.13
GJC3 gap junction protein gamma 3 GJE1 CX30.2 7q22.1
GJD2 gap junction protein delta 2 GJA9 CX36 15q14
GJD3 gap junction protein delta 3 GJC1 CX31.9, GJA11, Cx30.2 17q21.2
GJD4 gap junction protein delta 4 CX40.1, FLJ90023 10p11.21
GJE1 gap junction protein epsilon 1 CX23 6q24.1

Download gene family data

For all Ion channels, see our Ion channels page  

This online database does not include our confidential data. If you would like to create a new gene symbol and name, the only way to confirm it as unique is by contacting us.