Gene

gja8b

ID

ZDB-GENE-010607-3

Name

gap junction protein alpha 8 paralog b

Symbol

gja8b Nomenclature History

Previous Names

cx44.1 (1)
zfCx44.1 (1)
zgc:110520

Type

protein_coding_gene

Location

Chr: 1 Mapping Details/Browsers

Description

Exhibits gap junction hemi-channel activity. Predicted to be involved in cell communication. Predicted to localize to integral component of plasma membrane. Human ortholog(s) of this gene implicated in cataract and cataract 1 multiple types. Is expressed in several structures, including eye; kidney; liver; solid lens vesicle; and spinal cord. Orthologous to human GJA8 (gap junction protein alpha 8).

Genome Resources

Note

None

Comparative Information

Expression

All Expression Data

13 figures from 8 publications

Cross-Species Comparison

High Throughput Data

GEO (1)

Expression Atlas

UO scRNA-seq (UCSC browser)

Single Cell Expression Atlas

Thisse Expression Data

eu59 (6 images)

Wild Type Expression Summary

Phenotype

All Phenotype Data: 4 figures from Ping et al., 2021
Cross-Species Comparison: Alliance

Phenotype Summary

Mutations

Mutants

Sequence Targeting Reagents

Human Disease

Associated With gja8b Human Ortholog

Disease Ontology Term	Multi-Species Data	OMIM Term	OMIM Phenotype ID
cataract 1 multiple types	Alliance	Cataract 1, multiple types	116200

Associated With gja8b Via Experimental Models

No data available

Gene Ontology

Protein Domains

Domain, Family, and Site Summary

Type	InterPro ID	Name
Conserved_site	IPR017990	Connexin, conserved site
Domain	IPR013092	Connexin, N-terminal
Domain	IPR019570	Gap junction protein, cysteine-rich domain
Family	IPR000500	Connexin
Family	IPR002266	Gap junction alpha-8 protein (Cx50)
Homologous_superfamily	IPR034634	Connexin, C-terminal
Homologous_superfamily	IPR038359	Connexin, N-terminal domain superfamily

Domain Details Per Protein

Protein	Length	Connexin	Connexin, conserved site	Connexin, C-terminal	Connexin, N-terminal	Connexin, N-terminal domain superfamily	Gap junction alpha-8 protein (Cx50)	Gap junction protein, cysteine-rich domain
UniProtKB:Q503J6 InterPro	391

Transcripts

Genome Browsers

Type	Name	Annotation Method	Length (nt)	Analysis
mRNA	gja8b-201 (1) Ensembl	Havana	2459 nt	Select Tool ZFIN BLAST NCBI BLAST Ensembl UCSC BLAT
mRNA	gja8b-202 (1) Ensembl	Havana	1248 nt	Select Tool ZFIN BLAST NCBI BLAST Ensembl UCSC BLAT

Interactions and Pathways

No data available

Antibodies

No data available

Plasmids

No data available

Constructs

Marker Relationships

Sequences

Orthology

Comparative Orthology: Alliance
Gene Tree: Ensembl

Citations