1.A.24.1.14 Gap junction protein B4, GJB4, or Cx30.3 of 266 aas and 4 TMSs. Small molecules and ions diffuse from one cell to a neighboring cell via the central pore in these dodecameric channels. Mutation can cause a familial form of hypertrophic cardiomyopathy (HCM) and therefore could be a target for the treatment of cardiac hypertrophy and dysfunction (Okamoto et al. 2020).
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Accession Number: | Q9NTQ9 |
Protein Name: | Gap junction beta-4 protein |
Length: | 266 |
Molecular Weight: | 30419.00 |
Species: | Homo sapiens (Human) [9606] |
Number of TMSs: | 4 |
Location1 / Topology2 / Orientation3: |
Cell membrane1 / Multi-pass membrane protein2 |
Substrate |
ion, organic molecule, signalling molecule |
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1: MNWAFLQGLL SGVNKYSTVL SRIWLSVVFI FRVLVYVVAA EEVWDDEQKD FVCNTKQPGC
61: PNVCYDEFFP VSHVRLWALQ LILVTCPSLL VVMHVAYREE RERKHHLKHG PNAPSLYDNL
121: SKKRGGLWWT YLLSLIFKAA VDAGFLYIFH RLYKDYDMPR VVACSVEPCP HTVDCYISRP
181: TEKKVFTYFM VTTAAICILL NLSEVFYLVG KRCMEIFGPR HRRPRCRECL PDTCPPYVLS
241: QGGHPEDGNS VLMKAGSAPV DAGGYP