1. Gene
  2. GJB4 - gap junction protein beta 4 Gene

GJB4 - gap junction protein beta 4 Gene

Homo sapiens

Also known as EKV; EKVP2; CX30.3

Gene ID: 127534 | Gene type: protein coding

About GJB4

Cytogenetic location: 1p34.3 Genomic coordinates (GRCh38): 1:34,759,740-34,762,327 (from NCBI)

This gene has 1 transcript (splice variant), 351 orthologues, 20 paralogues and is associated with 2 phenotypes. Biased expression in skin (RPKM 10.4), gall bladder (RPKM 1.6) and 2 other tissues.

Summary

This gene encodes a transmembrane connexin protein that is a component of gap junctions. Mutations in this gene have been associated with erythrokeratodermia variabilis, progressive symmetric erythrokeratoderma and hearing impairment. [provided by RefSeq, Dec 2009]

GJB4 Products(1)

mRNA Protein Name
NM_153212.3 NP_694944.1 gap junction beta-4 protein
Gene Ontology
  • Molecular Function
Molecular Function GO Annotation Evidence Reference Source
enables protein binding IPI
IPI: Inferred from physical interaction
32296183 GOA
EXP: Inferred from Experiment IDA: Inferred from direct assay IPI: Inferred from physical interaction IMP: Inferred from mutant phenotype IGI: Inferred from genetic interaction IEP: Inferred from expression pattern

GJB4 Protein Structure

Connexin

Connexin: Connexin (2 - 106)

(142 - 208)

  • 0
  • 100
  • 200
  • 266 a.a.
Protein Preferred Names Protein Names

gap junction beta-4 protein

connexin 30.3

Related Diseases

Diseases Alias
Erythrokeratodermia Variabilis Et Progressiva 2

EKVP2

Erythrokeratodermia Variabilis Et Progressiva 1

Erythrokeratodermia Variabilis

Erythrokeratodermia Variabilis Et Progressiva

Greither Disease

Ekv

Ekvp

PSEK

Erythrokeratodermia Variabilis With Erythema Gyratum Repens

Keratosis Palmoplantaris Transgrediens Et Progrediens

Transgrediens Et Progrediens Palmoplantar Keratoderma

EKVP1

Erythrokeratodermia, Progressive Symmetric

Erythrokeratodermia Figurata, Congenital Familial, In Plaques

Keratoderma Palmoplantaris Transgrediens

Keratosis Extremitatum Hereditaria Progrediens

Erythrokeratodermia Variabilis, Mendes Da Costa Type

Progressive Symmetric Erythrokeratodermia

Erythrokeratodermia Figurata Variabilis

Greither'S Disease

Ekv-P

Erythrokeratodermia Variabilis Of Mendes Da Costa

Progressive Symmetrical Erythrokeratoderma Of Gottron

Progressive Diffuse Ppk

Progressive Diffuse Palmoplantar Keratoderma

Transgrediens Et Progrediens Ppk

Darier-Gottron Disease

Erythrokeratodermia Progressiva Symmetrica

Progressive Symmetric Erythrokeratodermia, Gottron Type

Congenital Familial Erythrokeratodermia Figurata In Plaques

Erythrokeratodermia Progressive Symmetric

Erythrokeratodermia Variabilis Mendes Da Costa Type

Erythrokeratoderma
Bart-Pumphrey Syndrome

Knuckle Pads, Leukonychia, And Sensorineural Deafness

BAPS

Knuckle Pads, Leuconychia And Sensorineural Deafness

Knuckle Pads-Leukonychia-Sensorineural Deafness-Palmoplantar Hyperkeratosis Syndrome

Knuckle Pads-Leukonychia-Sensorineural Deafness-Palmoplantar Keratoderma Syndrome

Knuckle Pads, Deafness And Leukonychia Syndrome

Knuckle Pads, Deafness, And Leukonychia Syndrome

Knuckle Pads-Leukonychia-Sensorineural Hearing Loss-Palmoplantar Hyperkeratosis Syndrome

Knuckle Pads-Leukonychia-Sensorineural Hearing Loss-Palmoplantar Keratoderma Syndrome

Palmoplantar Keratoderma And Congenital Alopecia 1

Autosomal Dominant Palmoplantar Keratoderma And Congenital Alopecia

PPKCA1

Keratoderma-Hypotrichosis-Leukonychia Totalis Syndrome

Autosomal Dominant Palmoplantar Hyperkeratosis And Congenital Alopecia

Palmoplantar Keratoderma And Congenital Alopecia, Stevanovic Type

Ppk-Ca, Stevanovic Type

Ppkca, Stevanovic Type

Palmoplantar Keratoderma With Congenital Alopecia

Ppkca Stevanovic Type

Alopecia Congenita With Hyperkeratosis Of The Palms And Soles

Alopecia Congenita Keratosis Palmoplantaris

Keratoderma, Palmoplantar, With Congenital Alopecia, Type 1

Hereditary Lymphedema Ic

Lymphedema, Hereditary, Ic

Lmph1c

Craniometaphyseal Dysplasia, Autosomal Recessive

CMDR

Autosomal Recessive Craniometaphyseal Dysplasia

Craniometaphyseal Dysplasia, Autosomal Recessive Type

Dysplasia, Craniometaphyseal, Autosomal Recessive

Keratoderma, Palmoplantar, With Deafness

Palmoplantar Keratoderma-Deafness Syndrome

Palmoplantar Keratoderma With Deafness

Palmoplantar Hyperkeratosis-Deafness Syndrome

Palmoplantar Hyperkeratosis-Hearing Loss Syndrome

Palmoplantar Keratoderma-Hearing Loss Syndrome

Ppk-Deafness Syndrome

Keratoderma Palmoplantar Deafness

Diffuse Palmoplantar Keratoderma With Deafness

Focal Palmoplantar Keratoderma With Sensorineural Deafness

Hereditary Palmoplantar Keratoderma With Deafness

Keratoderma Palmoplantar, With Deafness

Palmoplantar Keratoderma And Sensorineural Deafness

Ppk With Deafness

PPKDFN

Keratoderma Palmoplantar, Deafness

Skin Disease

Skin Diseases

Genodermatosis

Abnormality Of The Skin

Skin Diseases, Genetic

Skin And Subcutaneous Tissue Disease

Dermatologic Disorders

Clouston Syndrome

Ectodermal Dysplasia 2, Clouston Type

Hidrotic Ectodermal Dysplasia

ECTD2

Clouston'S Hidrotic Ectodermal Dysplasia

Hidrotic Ectodermal Dysplasia Syndrome

Clouston Hidrotic Ectodermal Dysplasia

Clouston'S Syndrome

Ed2

Ectodermal Dysplasia, Hidrotic

Hed2

Ectodermal Dysplasia

Ectodermal Dysplasia, Hidrotic, Autosomal Dominant

Ectodermal Dysplasia, Hidrotic, 2, Formerly

Hed2, Formerly

Autosomal Dominant Hidrotic Ectodermal Dysplasia

Hed

Hidrotic Ectodermal Dysplasia, Autosomal Dominant

Hidrotic Ectodermal Dysplasia 2

Ectodermal Dysplasia 2 Hidrotic

Ectodermal Dysplasia Hidrotic Autosomal Dominant

Dysplasia, Ectodermal, Hidrotic

Vohwinkel Syndrome

Mutilating Keratoderma

Keratoderma Hereditarium Mutilans

Khm

VOWNKL

Deafness, Congenital, With Keratopachydermia And Constrictions Of Fingers And Toes

Mutilating Keratoderma Of Vohwinkel

Mutilating Keratoderma Plus Deafness

Ppk Mutilans And Deafness

Congenital Deafness With Keratopachydermia And Constrictions Of Fingers And Toes

Congenital Deafness With Keratopachydermia And Constrictions Fo Fingers And Toes

Palmoplantar Keratoderma Mutilans

Palmoplantar Keratoderma Mutilans Vohwinkel

Ppk Mutilans Vohwinkel

Mutilating Keratoderma Plus Hearing Loss

Ppk Mutilans And Hearing Loss

Erythrasma

Infection Due To Corynebacterium Minutissimum

Oculodentodigital Dysplasia

Odd Syndrome

ODDD

Oculodentoosseous Dysplasia

Oculodentodigital Syndrome

Odod

Oculo-Dento-Digital Dysplasia

Oculo-Dento-Digital Syndrome

Oculo-Dento-Osseous Dysplasia

Osseous-Oculo-Dental Dysplasia

Meyer-Schwickerath Syndrome

Oddd Syndrome

Oculo Dento Digital Dysplasia

Odds

Oculodentodigital Dysplasia Syndrome

Ainhum

Dactylolysis Spontanea

Spontaneous Dactylolysis

Ectodermal Dysplasia

Congenital Ectodermal Defect

Congenital Ectodermal Dysplasia

Ectodermal Dysplasia Syndrome

Dysplasia, Ectodermal

Linear Skin Defects With Multiple Congenital Anomalies 1

Midas Syndrome

Mcops7

Mls Syndrome

Microphthalmia, Syndromic 7

Microphthalmia With Linear Skin Defects Syndrome

Microphthalmia With Linear Skin Defects

Microphthalmia-Dermal Aplasia-Sclerocornea Syndrome

Syndromic Microphthalmia Type 7

LSDMCA1

Mls

Microphthalmia, Dermal Aplasia, And Sclerocornea

Microphthalmia With Linear Skin Defect Syndrome

Syndromic Microphthalmia 7

Linear Skin Defects With Multiple Congenital Anomalies

Microphthalmia, Dermal Aplasia, Sclerocornea Syndrome

Microphthalmia Dermal Aplasia And Sclerocornea Syndrome

Micropthalmia Syndromic 7

Microphthalmia Syndromic 7

Microphthalmia With Linear Skin Lesions Syndrome

Syndromic Microphthalmia-7

Microphthalmia, Dermal Aplasia And Sclerocornea

Microphthalmia, Syndromic, 7

Midas

Cataract 1, Multiple Types

Cataract 1 Multiple Types

CTRCT1

Cataract 1, Multiple Types, With Or Without Microcornea

Czp1

Cae1

Pulverulent Zonular Cataract

Cataract, Duffy-Linked

Cataract, Zonular Pulverulent, 1

Duffy Linked Cataract

Zonular Pulverulent Cataract 1

Cataract Duffy-Linked

Cataract-Microcornea Syndrome

Cataract Zonular Pulverulent 1

Ccmc

Cznp

Czp

Zonular Nuclear Pulverulent Cataract

Cataract, Zonular Pulverulent-1

Zonular Pulverulent Cataract

Cataract, Zonular Pulverulent 1

Cataract Microcornea Syndrome

Albinism, Ocular, With Late-Onset Sensorineural Deafness

Ocular Albinism With Sensorineural Deafness

OASD

Deafness And Ocular Albinism

Ocular Albinism With Late-Onset Sensorineural Deafness

Albinism, Ocular, With Sensorineural Deafness

Autosomal Recessive Waardenburg Syndrome Type 2 With Ocular Albinism

Digenic Waardenburg Syndrome/Albinism

Digenic Waardenburg Syndrome/Ocular Albinism

Ws2-Oa

Albinism Ocular Late Onset Sensorineural Deafness

Ocular Albinism With Late-Onset Sensorineural Hearing Loss

Waardenburg Syndrome/Ocular Albinism, Digenic

Waardenburg Syndrome/Albinism, Digenic

Ocular Albinism And Sensorineural Deafness

Mental Retardation, Enteropathy, Deafness, Peripheral Neuropathy, Ichthyosis, And Keratoderma

Mednik Syndrome

Erythrokeratodermia Variabilis 3

MEDNIK

Ekv3

Erythrokeratodermia Variabilis, Kamouraska Type

Mental Retardation, Enteropathy, Deafness, Neuropathy, Ichthyosis, Keratodermia

Intellectual Disability-Enteropathy-Deafness-Peripheral Neuropathy-Ichthyosis-Keratodermia Syndrome

Intellectual Disability-Enteropathy-Hearing Loss-Peripheral Neuropathy-Ichthyosis-Keratodermia Syndrome

Intellectual Disability, Enteropathy, Deafness, Peripheral Neuropathy, Ichthyosis, And Keratoderma

Erythrokeratodermia Variabilis Kamouraska Type

Mental Retardation, Enteropathy, Deafness, Peripheral Neuropathy, Ichthyosis, Keratoderma

Palmoplantar Keratosis

Palmoplantar Keratoderma

Keratosis Palmaris Et Plantaris

Palmo-Plantar Keratodermas

Keratoderma, Palmoplantar

Keratoderma Palmoplantar

Keratoderma, Palmoplantar, Diffuse

Hyperkeratosis Of Palms And Soles

Palmoplantar Hyperkeratosis

Leukodystrophy, Hypomyelinating, 2

Pmld1

Hypomyelinating Leukodystrophy 2

HLD2

Pelizaeus-Merzbacher-Like Disease 1

Pelizaeus-Merzbacher-Like Disease Due To Gjc2 Mutation

Pelizaeus-Merzbacher-Like Disease Type 1

Pelizaeus-Merzbacher-Like Disease, 1

Pelizaeus Merzbacher Like Disease

Pelizaeus-Merzbacher-Like Disease

Pmld - Pelizaeus Merzbacher Like Disease

Pelizaeus-Merzbacher-Like Disease Autosomal Recessive Type 1

Pmldar1

Leukodystrophy, Hypomyelinating, Type 2

Exposure Keratitis

Exposure Keratoconjunctivitis

Lagophthalmic Keratitis

Nevus, Epidermal

Epidermal Nevus

Woolly Hair Nevus

Epidermal Naevus

Epidermal Nevus Syndrome

Nevus, Keratinocytic, Nonepidermolytic

Epidermal Nevus, Somatic

Nevus, Epidermal, Somatic

Nevus Sebaceous Or Woolly Hair Nevus, Somatic

Nonepidermolytic Keratinocytic Nevus

Epidermal Hamartoma Syndrome

Wooly Hair Nevus

Keratinocytic Non-Epidermolytic Nevus

KNEN

Pigmented Moles

Organoid Nevus Phakomatosis

Nevus Sebaceous

Melanocytic Nevus

Melanocytic Nevus Of Skin

Cornelia De Lange Syndrome 1

De Lange Syndrome

CDLS1

Cdl

Cdls

Typus Degenerativus Amstelodamensis

Brachmann-De Lange Syndrome

Bdls

Amstelodamensis Typus Degenerativus

Cornelia De Lange Syndrome, Type 1

Autosomal Recessive Congenital Ichthyosis

Lamellar Ichthyosis

Congenital Ichthyosiform Erythroderma

Li

Congenital Nonbullous Ichthyosiform Erythroderma

Arci

Congenital Lamellar Ichthyosis

Nonbullous Congenital Ichthyosiform Erythroderma

Cie

Congenital Non-Bullous Ichthyosiform Erythroderma

Erythrodermic Ichthyosis

Nbcie

Ncie

Non-Bullous Congenital Ichthyosiform Erythroderma

Collodion Baby

Ichthyosis, Lamellar

Non Bullous Congenital Ichthyosiform Erythroderma

Ichthyosiform Erythroderma, Brocq Congenital, Nonbullous Form

Ichthyosiform Erythroderma, Congenital, Nonbullous, 1

Collodion Baby Syndrome

Ichthyoses, Lamellar

Nbie

Nonbullous Ichthyosiform Erythroderma

Classic Lamellar Ichthyosis

Ichthyosiform Erythroderma Nonbullous Congenital

Ichthyosiform Erythroderma Congenital

Ichthyosis, Congenital, Autosomal Recessive

Ichthyosiform Erythroderma, Congenital

Collodion Fetus

Non-Bullous Ichthyosiform Erythroderma

Charcot-Marie-Tooth Disease

Cmt

Hmsn

Hereditary Motor And Sensory Neuropathy

Pma

Cmt - Charcot-Marie-Tooth Disease

Charcot Marie Tooth Disease

Charcot-Marie-Tooth Hereditary Neuropathy

Charcot-Marie-Tooth Syndrome

Peroneal Muscular Atrophy

Hereditary Motor And Sensory Neuropathies

Diseases Alias
Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Orthologs Information

Species Symbol Source ID
Canis familiaris GJB4 VGNC VGNC:41240
Bos taurus GJB4 VGNC VGNC:29379
Mus musculus GJB4 MGD MGI:95722
Macaca mulatta GJB4 VGNC VGNC:73062
Rattus norvegicus GJB4 RGD RGD:621829