General Information of Drug Off-Target (DOT) (ID: OTT94MKL)

DOT Name Gap junction alpha-1 protein (GJA1)
Synonyms Connexin-43; Cx43; Gap junction 43 kDa heart protein
Gene Name GJA1
Related Disease
Hypoplastic left heart syndrome 1 ( )
Oculodentodigital dysplasia ( )
Oculodentodigital dysplasia, autosomal recessive ( )
Autosomal dominant palmoplantar keratoderma and congenital alopecia ( )
Erythrokeratodermia variabilis et progressiva 3 ( )
Craniometaphyseal dysplasia ( )
Erythrokeratodermia variabilis ( )
Syndactyly type 3 ( )
Nonsyndromic genetic hearing loss ( )
Craniometaphyseal dysplasia, autosomal recessive ( )
Hallermann-Streiff syndrome ( )
UniProt ID
CXA1_HUMAN
3D Structure
Download
2D Sequence (FASTA)
Download
3D Structure (PDB)
Download
PDB ID
2LL2; 7F92; 7F93; 7F94; 7XQ9; 7XQB; 7XQD; 7XQF; 7XQG; 7XQH; 7XQI; 7XQJ; 7Z1T; 7Z22; 7Z23
Pfam ID
PF00029 ; PF03508
Sequence
MGDWSALGKLLDKVQAYSTAGGKVWLSVLFIFRILLLGTAVESAWGDEQSAFRCNTQQPG
CENVCYDKSFPISHVRFWVLQIIFVSVPTLLYLAHVFYVMRKEEKLNKKEEELKVAQTDG
VNVDMHLKQIEIKKFKYGIEEHGKVKMRGGLLRTYIISILFKSIFEVAFLLIQWYIYGFS
LSAVYTCKRDPCPHQVDCFLSRPTEKTIFIIFMLVVSLVSLALNIIELFYVFFKGVKDRV
KGKSDPYHATSGALSPAKDCGSQKYAYFNGCSSPTAPLSPMSPPGYKLVTGDRNNSSCRN
YNKQASEQNWANYSAEQNRMGQAGSTISNSHAQPFDFPDDNQNSKKLAAGHELQPLAIVD
QRPSSRASSRASSRPRPDDLEI
Function
Gap junction protein that acts as a regulator of bladder capacity. A 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. May play a critical role in the physiology of hearing by participating in the recycling of potassium to the cochlear endolymph. Negative regulator of bladder functional capacity: acts by enhancing intercellular electrical and chemical transmission, thus sensitizing bladder muscles to cholinergic neural stimuli and causing them to contract. May play a role in cell growth inhibition through the regulation of NOV expression and localization. Plays an essential role in gap junction communication in the ventricles.
Tissue Specificity Expressed in the heart and fetal cochlea.
KEGG Pathway
Gap junction (hsa04540 )
Arrhythmogenic right ventricular cardiomyopathy (hsa05412 )
Reactome Pathway
Transport of connexins along the secretory pathway (R-HSA-190827 )
Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane (R-HSA-190840 )
Gap junction assembly (R-HSA-190861 )
Gap junction degradation (R-HSA-190873 )
Regulation of gap junction activity (R-HSA-191650 )
Formation of annular gap junctions (R-HSA-196025 )
RHOQ GTPase cycle (R-HSA-9013406 )
RHOJ GTPase cycle (R-HSA-9013409 )
SARS-CoV-2 targets PDZ proteins in cell-cell junction (R-HSA-9705677 )
Oligomerization of connexins into connexons (R-HSA-190704 )

Molecular Interaction Atlas (MIA) of This DOT

11 Disease(s) Related to This DOT
Disease Name Disease ID Evidence Level Mode of Inheritance REF
Hypoplastic left heart syndrome 1 DISW3OY8 Definitive Autosomal dominant [1]
Oculodentodigital dysplasia DISSWR9C Definitive Semidominant [2]
Oculodentodigital dysplasia, autosomal recessive DISAAEON Definitive Autosomal recessive [3]
Autosomal dominant palmoplantar keratoderma and congenital alopecia DISQI2AI Strong Autosomal dominant [4]
Erythrokeratodermia variabilis et progressiva 3 DIS8JGKH Strong Autosomal dominant [4]
Craniometaphyseal dysplasia DISK6EZQ Supportive Autosomal dominant [5]
Erythrokeratodermia variabilis DIS4BMUQ Supportive Autosomal dominant [6]
Syndactyly type 3 DISDD010 Supportive Autosomal dominant [3]
Nonsyndromic genetic hearing loss DISZX61P Disputed Autosomal dominant [7]
Craniometaphyseal dysplasia, autosomal recessive DISXHFIL Limited Autosomal recessive [2]
Hallermann-Streiff syndrome DISNT5DL Limited Autosomal recessive [8]
------------------------------------------------------------------------------------
⏷ Show the Full List of 11 Disease(s)
Molecular Interaction Atlas (MIA) Jump to Detail Molecular Interaction Atlas of This DOT
This DOT Affected the Drug Response of 2 Drug(s)
Drug Name Drug ID Highest Status Interaction REF
Fluorouracil DMUM7HZ Approved Gap junction alpha-1 protein (GJA1) affects the response to substance of Fluorouracil. [44]
Topotecan DMP6G8T Approved Gap junction alpha-1 protein (GJA1) affects the response to substance of Topotecan. [44]
------------------------------------------------------------------------------------
This DOT Affected the Regulation of Drug Effects of 1 Drug(s)
Drug Name Drug ID Highest Status Interaction REF
Adenosine triphosphate DM79F6G Approved Gap junction alpha-1 protein (GJA1) increases the export of Adenosine triphosphate. [45]
------------------------------------------------------------------------------------
37 Drug(s) Affected the Gene/Protein Processing of This DOT
Drug Name Drug ID Highest Status Interaction REF
Valproate DMCFE9I Approved Valproate decreases the expression of Gap junction alpha-1 protein (GJA1). [9]
Tretinoin DM49DUI Approved Tretinoin decreases the expression of Gap junction alpha-1 protein (GJA1). [10]
Acetaminophen DMUIE76 Approved Acetaminophen decreases the expression of Gap junction alpha-1 protein (GJA1). [11]
Doxorubicin DMVP5YE Approved Doxorubicin decreases the expression of Gap junction alpha-1 protein (GJA1). [12]
Cisplatin DMRHGI9 Approved Cisplatin increases the expression of Gap junction alpha-1 protein (GJA1). [13]
Estradiol DMUNTE3 Approved Estradiol increases the expression of Gap junction alpha-1 protein (GJA1). [14]
Arsenic trioxide DM61TA4 Approved Arsenic trioxide decreases the expression of Gap junction alpha-1 protein (GJA1). [16]
Hydrogen peroxide DM1NG5W Approved Hydrogen peroxide decreases the expression of Gap junction alpha-1 protein (GJA1). [17]
Triclosan DMZUR4N Approved Triclosan increases the expression of Gap junction alpha-1 protein (GJA1). [18]
Decitabine DMQL8XJ Approved Decitabine affects the expression of Gap junction alpha-1 protein (GJA1). [19]
Progesterone DMUY35B Approved Progesterone decreases the expression of Gap junction alpha-1 protein (GJA1). [20]
Fulvestrant DM0YZC6 Approved Fulvestrant decreases the expression of Gap junction alpha-1 protein (GJA1). [21]
Folic acid DMEMBJC Approved Folic acid affects the expression of Gap junction alpha-1 protein (GJA1). [22]
Irinotecan DMP6SC2 Approved Irinotecan affects the expression of Gap junction alpha-1 protein (GJA1). [23]
Sodium lauryl sulfate DMLJ634 Approved Sodium lauryl sulfate decreases the expression of Gap junction alpha-1 protein (GJA1). [24]
Ethinyl estradiol DMODJ40 Approved Ethinyl estradiol increases the expression of Gap junction alpha-1 protein (GJA1). [25]
Azacitidine DMTA5OE Approved Azacitidine decreases the expression of Gap junction alpha-1 protein (GJA1). [26]
Mifepristone DMGZQEF Approved Mifepristone increases the expression of Gap junction alpha-1 protein (GJA1). [27]
Flutamide DMK0O7U Approved Flutamide decreases the expression of Gap junction alpha-1 protein (GJA1). [28]
Carvedilol DMHTEAO Approved Carvedilol increases the expression of Gap junction alpha-1 protein (GJA1). [29]
Letrozole DMH07Y3 Approved Letrozole decreases the expression of Gap junction alpha-1 protein (GJA1). [21]
Griseofulvin DMK54YG Approved Griseofulvin increases the expression of Gap junction alpha-1 protein (GJA1). [30]
Anastrozole DMNP60F Approved Anastrozole decreases the expression of Gap junction alpha-1 protein (GJA1). [21]
Afimoxifene DMFORDT Phase 2 Afimoxifene decreases the expression of Gap junction alpha-1 protein (GJA1). [21]
phorbol 12-myristate 13-acetate DMJWD62 Phase 2 phorbol 12-myristate 13-acetate increases the expression of Gap junction alpha-1 protein (GJA1). [25]
Fucoxanthin DMPQFTA Phase 2 Fucoxanthin increases the expression of Gap junction alpha-1 protein (GJA1). [31]
G1 DMTV42K Phase 1/2 G1 decreases the expression of Gap junction alpha-1 protein (GJA1). [32]
Benzo(a)pyrene DMN7J43 Phase 1 Benzo(a)pyrene decreases the expression of Gap junction alpha-1 protein (GJA1). [33]
Calphostin C DM9X2D0 Terminated Calphostin C affects the expression of Gap junction alpha-1 protein (GJA1). [34]
chloropicrin DMSGBQA Investigative chloropicrin increases the expression of Gap junction alpha-1 protein (GJA1). [36]
D-glucose DMMG2TO Investigative D-glucose decreases the expression of Gap junction alpha-1 protein (GJA1). [38]
Forskolin DM6ITNG Investigative Forskolin decreases the expression of Gap junction alpha-1 protein (GJA1). [39]
Rapamycin Immunosuppressant Drug DM678IB Investigative Rapamycin Immunosuppressant Drug decreases the expression of Gap junction alpha-1 protein (GJA1). [40]
Dibutyl phthalate DMEDGKO Investigative Dibutyl phthalate increases the expression of Gap junction alpha-1 protein (GJA1). [41]
Bafilomycin A1 DMUNK59 Investigative Bafilomycin A1 increases the expression of Gap junction alpha-1 protein (GJA1). [40]
toxaphene DM4R657 Investigative toxaphene decreases the expression of Gap junction alpha-1 protein (GJA1). [42]
norfluoxetine DMKNUP3 Investigative norfluoxetine increases the expression of Gap junction alpha-1 protein (GJA1). [43]
------------------------------------------------------------------------------------
⏷ Show the Full List of 37 Drug(s)
3 Drug(s) Affected the Post-Translational Modifications of This DOT
Drug Name Drug ID Highest Status Interaction REF
Arsenic DMTL2Y1 Approved Arsenic decreases the ubiquitination of Gap junction alpha-1 protein (GJA1). [15]
Bisphenol A DM2ZLD7 Investigative Bisphenol A decreases the methylation of Gap junction alpha-1 protein (GJA1). [35]
3R14S-OCHRATOXIN A DM2KEW6 Investigative 3R14S-OCHRATOXIN A increases the phosphorylation of Gap junction alpha-1 protein (GJA1). [37]
------------------------------------------------------------------------------------

References

1 Identification of connexin43 (alpha1) gap junction gene mutations in patients with hypoplastic left heart syndrome by denaturing gradient gel electrophoresis (DGGE). Mutat Res. 2001 Aug 8;479(1-2):173-86. doi: 10.1016/s0027-5107(01)00160-9.
2 Classification of Genes: Standardized Clinical Validity Assessment of Gene-Disease Associations Aids Diagnostic Exome Analysis and Reclassifications. Hum Mutat. 2017 May;38(5):600-608. doi: 10.1002/humu.23183. Epub 2017 Feb 13.
3 Connexin 43 (GJA1) mutations cause the pleiotropic phenotype of oculodentodigital dysplasia. Am J Hum Genet. 2003 Feb;72(2):408-18. doi: 10.1086/346090. Epub 2002 Nov 27.
4 The Gene Curation Coalition: A global effort to harmonize gene-disease evidence resources. Genet Med. 2022 Aug;24(8):1732-1742. doi: 10.1016/j.gim.2022.04.017. Epub 2022 May 4.
5 A novel autosomal recessive GJA1 missense mutation linked to Craniometaphyseal dysplasia. PLoS One. 2013 Aug 12;8(8):e73576. doi: 10.1371/journal.pone.0073576. eCollection 2013.
6 Dominant De Novo Mutations in GJA1 Cause Erythrokeratodermia Variabilis et Progressiva, without Features of Oculodentodigital Dysplasia. J Invest Dermatol. 2015 Jun;135(6):1540-1547. doi: 10.1038/jid.2014.485. Epub 2014 Nov 14.
7 Technical standards for the interpretation and reporting of constitutional copy-number variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics (ACMG) and the Clinical Genome Resource (ClinGen). Genet Med. 2020 Feb;22(2):245-257. doi: 10.1038/s41436-019-0686-8. Epub 2019 Nov 6.
8 A homozygous GJA1 gene mutation causes a Hallermann-Streiff/ODDD spectrum phenotype. Hum Mutat. 2004 Mar;23(3):286. doi: 10.1002/humu.9220.
9 Integrative omics data analyses of repeated dose toxicity of valproic acid in vitro reveal new mechanisms of steatosis induction. Toxicology. 2018 Jan 15;393:160-170.
10 Phenotypic characterization of retinoic acid differentiated SH-SY5Y cells by transcriptional profiling. PLoS One. 2013 May 28;8(5):e63862.
11 Blood transcript immune signatures distinguish a subset of people with elevated serum ALT from others given acetaminophen. Clin Pharmacol Ther. 2016 Apr;99(4):432-41.
12 Bringing in vitro analysis closer to in vivo: studying doxorubicin toxicity and associated mechanisms in 3D human microtissues with PBPK-based dose modelling. Toxicol Lett. 2018 Sep 15;294:184-192.
13 Downregulation of Cx43 reduces cisplatin-induced acute renal injury by inhibiting ferroptosis. Food Chem Toxicol. 2021 Dec;158:112672. doi: 10.1016/j.fct.2021.112672. Epub 2021 Nov 13.
14 Identification of transcriptional biomarkers induced by SERMS in human endometrial cells using multivariate analysis of DNA microarrays. Biomarkers. 2004 Nov-Dec;9(6):447-60.
15 Quantitative Assessment of Arsenite-Induced Perturbation of Ubiquitinated Proteome. Chem Res Toxicol. 2022 Sep 19;35(9):1589-1597. doi: 10.1021/acs.chemrestox.2c00197. Epub 2022 Aug 22.
16 Role of NADPH oxidase in arsenic-induced reactive oxygen species formation and cytotoxicity in myeloid leukemia cells. Proc Natl Acad Sci U S A. 2004 Mar 30;101(13):4578-83.
17 Arsenic suppresses gene expression in promyelocytic leukemia cells partly through Sp1 oxidation. Blood. 2005 Jul 1;106(1):304-10.
18 Transcriptome and DNA methylome dynamics during triclosan-induced cardiomyocyte differentiation toxicity. Stem Cells Int. 2018 Oct 29;2018:8608327.
19 Downregulation of connexin 43 in nasopharyngeal carcinoma cells is related to promoter methylation. Oral Oncol. 2007 Oct;43(9):898-904. doi: 10.1016/j.oraloncology.2006.11.004. Epub 2007 Feb 15.
20 Effect of prolonged in vivo administration of progesterone in pregnancy on myometrial gene expression, peripheral blood leukocyte activation, and circulating steroid hormone levels. Reprod Sci. 2011 May;18(5):435-46.
21 Inhibition of estrogen receptor reduces connexin 43 expression in breast cancers. Toxicol Appl Pharmacol. 2018 Jan 1;338:182-190. doi: 10.1016/j.taap.2017.11.020. Epub 2017 Nov 24.
22 Folate deficiency in normal human fibroblasts leads to altered expression of genes primarily linked to cell signaling, the cytoskeleton and extracellular matrix. J Nutr Biochem. 2007 Aug;18(8):541-52. doi: 10.1016/j.jnutbio.2006.11.002. Epub 2007 Feb 22.
23 Clinical determinants of response to irinotecan-based therapy derived from cell line models. Clin Cancer Res. 2008 Oct 15;14(20):6647-55.
24 CXCL14 downregulation in human keratinocytes is a potential biomarker for a novel in vitro skin sensitization test. Toxicol Appl Pharmacol. 2020 Jan 1;386:114828. doi: 10.1016/j.taap.2019.114828. Epub 2019 Nov 14.
25 Increased expression of estrogen receptor beta in human uterine smooth muscle at term. Eur J Endocrinol. 2000 Jan;142(1):92-9. doi: 10.1530/eje.0.1420092.
26 The effect of DNA methylation inhibitor 5-Aza-2'-deoxycytidine on human endometrial stromal cells. Hum Reprod. 2010 Nov;25(11):2859-69.
27 Mifepristone induced progesterone withdrawal reveals novel regulatory pathways in human endometrium. Mol Hum Reprod. 2007 Sep;13(9):641-54.
28 Role of connexin 43 in cadmium-induced proliferation of human prostate epithelial cells. J Appl Toxicol. 2017 Aug;37(8):933-942. doi: 10.1002/jat.3441. Epub 2017 Feb 8.
29 Reduced expression of endothelial connexins 43 and 37 in hypertensive rats is rectified after 7-day carvedilol treatment. Am J Hypertens. 2006 Feb;19(2):129-35. doi: 10.1016/j.amjhyper.2005.08.020.
30 The anti-mitotic drug griseofulvin induces apoptosis of human germ cell tumor cells through a connexin 43-dependent molecular mechanism. Apoptosis. 2013 Apr;18(4):480-91. doi: 10.1007/s10495-012-0800-8.
31 Inhibition of proliferation of a hepatoma cell line by fucoxanthin in relation to cell cycle arrest and enhanced gap junctional intercellular communication. Chem Biol Interact. 2009 Dec 10;182(2-3):165-72. doi: 10.1016/j.cbi.2009.08.017. Epub 2009 Sep 6.
32 Morphologic effects of estrogen stimulation on 3D MCF-7 microtissues. Toxicol Lett. 2016 Apr 25;248:1-8.
33 Benzo[a]pyrene-induced changes in microRNA-mRNA networks. Chem Res Toxicol. 2012 Apr 16;25(4):838-49.
34 Targeting the beta-catenin/TCF transcriptional complex in the treatment of multiple myeloma. Proc Natl Acad Sci U S A. 2007 May 1;104(18):7516-21. doi: 10.1073/pnas.0610299104. Epub 2007 Apr 23.
35 DNA methylome-wide alterations associated with estrogen receptor-dependent effects of bisphenols in breast cancer. Clin Epigenetics. 2019 Oct 10;11(1):138. doi: 10.1186/s13148-019-0725-y.
36 Transcriptomic analysis of human primary bronchial epithelial cells after chloropicrin treatment. Chem Res Toxicol. 2015 Oct 19;28(10):1926-35.
37 Determination of the epigenetic effects of ochratoxin in a human kidney and a rat liver epithelial cell line. Toxicon. 2002 Mar;40(3):273-82. doi: 10.1016/s0041-0101(01)00219-7.
38 trans-resveratrol inhibits hyperglycemia-induced inflammation and connexin downregulation in retinal pigment epithelial cells. J Agric Food Chem. 2010 Jul 28;58(14):8246-52.
39 Effects of valproic acid on syncytialization in human placental trophoblast cell lines. Toxicol Appl Pharmacol. 2023 Sep 1;474:116611. doi: 10.1016/j.taap.2023.116611. Epub 2023 Jun 28.
40 GJA1 reverses arsenic-induced EMT via modulating MAPK/ERK signaling pathway. Toxicol Appl Pharmacol. 2022 Sep 1;450:116138. doi: 10.1016/j.taap.2022.116138. Epub 2022 Jun 21.
41 Dibutyl phthalate induces epithelial-mesenchymal transition of renal tubular epithelial cells via the Ang II/AMPK2/Cx43 signaling pathway. Toxicology. 2023 Aug 1;494:153584. doi: 10.1016/j.tox.2023.153584. Epub 2023 Jun 24.
42 Inhibition of gap junctional intercellular communication in normal human breast epithelial cells after treatment with pesticides, PCBs, and PBBs, alone or in mixtures. Environ Health Perspect. 1996 Feb;104(2):192-200. doi: 10.1289/ehp.96104192.
43 Effects of selective serotonin-reuptake inhibitors (SSRIs) on human villous trophoblasts syncytialization. Toxicol Appl Pharmacol. 2018 Jun 15;349:8-20. doi: 10.1016/j.taap.2018.04.018. Epub 2018 Apr 19.
44 Gene expression profiling of 30 cancer cell lines predicts resistance towards 11 anticancer drugs at clinically achieved concentrations. Int J Cancer. 2006 Apr 1;118(7):1699-712. doi: 10.1002/ijc.21570.
45 Some oculodentodigital dysplasia-associated Cx43 mutations cause increased hemichannel activity in addition to deficient gap junction channels. J Membr Biol. 2007 Oct;219(1-3):9-17. doi: 10.1007/s00232-007-9055-7. Epub 2007 Aug 9.