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Aliases for GJC2 Gene

Aliases for GJC2 Gene

  • Gap Junction Protein Gamma 2 2 3 5
  • Gap Junction Protein, Gamma 2, 47kDa 2 3
  • Gap Junction Alpha-12 Protein 3 4
  • Connexin-46.6 3 4
  • Connexin-47 3 4
  • GJA12 3 4
  • Cx47 3 4
  • Gap Junction Protein, Alpha 12, 47kDa 2
  • Gap Junction Gamma-2 Protein 3
  • Connexin 47 2
  • CX46.6 3
  • LMPH1C 3
  • PMLDAR 3
  • Cx46.6 4
  • SPG44 3
  • HLD2 3

External Ids for GJC2 Gene

Previous HGNC Symbols for GJC2 Gene

  • GJA12

Previous GeneCards Identifiers for GJC2 Gene

  • GC01P226405
  • GC01P228337
  • GC01P198852

Summaries for GJC2 Gene

Entrez Gene Summary for GJC2 Gene

  • This gene encodes a gap junction protein. Gap junction proteins are members of a large family of homologous connexins and comprise 4 transmembrane, 2 extracellular, and 3 cytoplasmic domains. This gene plays a key role in central myelination and is involved in peripheral myelination in humans. Defects in this gene are the cause of autosomal recessive Pelizaeus-Merzbacher-like disease-1. [provided by RefSeq, Jul 2008]

GeneCards Summary for GJC2 Gene

GJC2 (Gap Junction Protein Gamma 2) is a Protein Coding gene. Diseases associated with GJC2 include Leukodystrophy, Hypomyelinating, 2 and Spastic Paraplegia 44, Autosomal Recessive. Among its related pathways are Vesicle-mediated transport and Gap junction trafficking. Gene Ontology (GO) annotations related to this gene include gap junction channel activity. An important paralog of this gene is GJC1.

UniProtKB/Swiss-Prot for GJC2 Gene

  • One 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 role in myelination in central and peripheral nervous systems.

Tocris Summary for GJC2 Gene

  • Gap channels (gap junctions) are specialized cell-cell contacts that provide direct intracellular communication. They allow passive diffusion of molecules up to 1 kDa, including nutrients, metabolites (glucose), ions (K+, Ca2+) and second messengers (IP3, cAMP).

Gene Wiki entry for GJC2 Gene

Additional gene information for GJC2 Gene

No data available for CIViC summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for GJC2 Gene

Genomics for GJC2 Gene

GeneHancer (GH) Regulatory Elements for GJC2 Gene

Promoters and enhancers for GJC2 Gene
GeneHancer (GH) Identifier GH Type GH
Score
GH Sources Gene Association Score Total Score TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor
Binding Sites
Gene Targets
GH01J228147 Promoter/Enhancer 2 EPDnew FANTOM5 Ensembl ENCODE dbSUPER 657.5 +0.6 637 5 PKNOX1 ARID4B KLF17 KLF14 ZNF614 GLIS2 EGR2 SP5 ZBTB25 REST GJC2 OBSCN-AS1 OBSCN IBA57 ENSG00000269934 GUK1 GC01P228162
GH01J228154 Promoter/Enhancer 1.3 EPDnew ENCODE dbSUPER 650.4 +5.3 5328 1 KLF1 KLF17 ZIC2 HIC1 ZFHX2 GLIS2 EGR1 POLR2A ZNF600 EGR2 GJC2 GC01P228162
GH01J228485 Promoter/Enhancer 2.3 EPDnew Ensembl ENCODE dbSUPER 5.6 +337.8 337833 3.3 CLOCK FEZF1 DMAP1 IRF4 YY1 SLC30A9 ZNF213 E2F8 ZNF143 SP3 RNF187 ENSG00000279306 CICP26 ZNF678 PRSS38 C1orf35 ENSG00000269890 LOC100421842 ENSG00000233920 MRPL55
GH01J228445 Enhancer 1.2 FANTOM5 Ensembl ENCODE 4.5 +296.4 296374 1.1 MXI1 USF1 MAX BMI1 ZBTB40 POLR2A EGR1 EZH2 NR2F1 USF2 TRIM17 OBSCN TRIM11 ENSG00000231563 OBSCN-AS1 WNT3A GJC2 HIST3H2A RPL23AP15 HIST3H3
GH01J228472 Enhancer 0.8 Ensembl ENCODE 5.3 +323.1 323087 0.4 JUN NR2F1 MAX CBFA2T3 ATF2 ZNF592 GABPB1 NR2C1 CBFA2T2 KDM1A OBSCN GJC2 HIST3H2BA RNF187
- Elite GeneHancer and/or Elite GeneHancer-gene association Download GeneHancer data from 2017 publication | Request up-to-date GeneHancer data (full dataset)

GeneHancers around GJC2 on UCSC Golden Path with GeneCards custom track

Top Transcription factor binding sites by QIAGEN in the GJC2 gene promoter:
  • AP-4
  • ATF6
  • HEN1
  • YY1
  • GCNF
  • GCNF-1
  • GCNF-2
  • c-Myc
  • Max
  • CUTL1

Genomic Locations for GJC2 Gene

Genomic Locations for GJC2 Gene
chr1:228,149,714-228,159,826
(GRCh38/hg38)
Size:
10,113 bases
Orientation:
Plus strand
chr1:228,337,415-228,347,527
(GRCh37/hg19)
Size:
10,113 bases
Orientation:
Plus strand

Genomic View for GJC2 Gene

Genes around GJC2 on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
GJC2 Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for GJC2 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for GJC2 Gene

Proteins for GJC2 Gene

  • Protein details for GJC2 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Q5T442-CXG2_HUMAN
    Recommended name:
    Gap junction gamma-2 protein
    Protein Accession:
    Q5T442
    Secondary Accessions:
    • O43440
    • Q7Z7J2
    • Q8IWJ9

    Protein attributes for GJC2 Gene

    Size:
    439 amino acids
    Molecular mass:
    47002 Da
    Quaternary structure:
    • A connexon is composed of a hexamer of connexins. Interacts with TJP1 (By similarity).
    SequenceCaution:
    • Sequence=AAB94511.1; Type=Erroneous initiation; Note=Translation N-terminally extended.; Evidence={ECO:0000305}; Sequence=AAH35840.1; Type=Erroneous initiation; Note=Translation N-terminally extended.; Evidence={ECO:0000305};

neXtProt entry for GJC2 Gene

Post-translational modifications for GJC2 Gene

  • Modification sites at PhosphoSitePlus
  • Modification sites at neXtProt

Other Protein References for GJC2 Gene

ENSEMBL proteins:
REFSEQ proteins:

No data available for DME Specific Peptides for GJC2 Gene

Domains & Families for GJC2 Gene

Gene Families for GJC2 Gene

HGNC:
IUPHAR :
Human Protein Atlas (HPA):
  • Disease related genes
  • Predicted membrane proteins

Protein Domains for GJC2 Gene

Suggested Antigen Peptide Sequences for GJC2 Gene

GenScript: Design optimal peptide antigens:

Graphical View of Domain Structure for InterPro Entry

Q5T442

UniProtKB/Swiss-Prot:

CXG2_HUMAN :
  • Belongs to the connexin family. Gamma-type subfamily.
Family:
  • Belongs to the connexin family. Gamma-type subfamily.
genes like me logo Genes that share domains with GJC2: view

Function for GJC2 Gene

Molecular function for GJC2 Gene

UniProtKB/Swiss-Prot Function:
One 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 role in myelination in central and peripheral nervous systems.

Phenotypes From GWAS Catalog for GJC2 Gene

Gene Ontology (GO) - Molecular Function for GJC2 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005243 gap junction channel activity IEA --
GO:1903763 gap junction channel activity involved in cell communication by electrical coupling IMP 17344063
genes like me logo Genes that share ontologies with GJC2: view
genes like me logo Genes that share phenotypes with GJC2: view

Human Phenotype Ontology for GJC2 Gene

HPO Id HPO Name Alternative Ids Definition Synonyms

Animal Models for GJC2 Gene

MGI Knock Outs for GJC2:
  • Gjc2 Gjc2<tm1Paul>
  • Gjc2 Gjc2<tm1(EGFP)Kwi>

Animal Model Products

CRISPR Products

miRNA for GJC2 Gene

miRTarBase miRNAs that target GJC2

Inhibitory RNA Products

  • Search GeneCopoeia for shRNA, lentivirus and/or AAV clone products for GJC2

Clone Products

No data available for Enzyme Numbers (IUBMB) , Transcription Factor Targets and HOMER Transcription for GJC2 Gene

Localization for GJC2 Gene

Subcellular locations from UniProtKB/Swiss-Prot for GJC2 Gene

Cell membrane; Multi-pass membrane protein. Cell junction, gap junction.

Subcellular locations from

COMPARTMENTS
Extracellular space Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi Apparatus Nucleus Mitochondrion 0 1 2 3 4 5 Confidence
COMPARTMENTS Subcellular localization image for GJC2 gene
Compartment Confidence
plasma membrane 5
cytoskeleton 1

Gene Ontology (GO) - Cellular Components for GJC2 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005886 plasma membrane IEA --
GO:0005921 gap junction IMP 17344063
GO:0005922 connexin complex IEA --
GO:0016020 membrane IEA --
GO:0016021 integral component of membrane IEA --
genes like me logo Genes that share ontologies with GJC2: view

No data available for Subcellular locations from the Human Protein Atlas (HPA) for GJC2 Gene

Pathways & Interactions for GJC2 Gene

genes like me logo Genes that share pathways with GJC2: view

Pathways by source for GJC2 Gene

Gene Ontology (GO) - Biological Process for GJC2 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0001932 regulation of protein phosphorylation IEA --
GO:0007154 cell communication IEA --
GO:0007267 cell-cell signaling IEA --
GO:0007420 brain development IEA --
GO:0009636 response to toxic substance IEA --
genes like me logo Genes that share ontologies with GJC2: view

No data available for SIGNOR curated interactions for GJC2 Gene

Drugs & Compounds for GJC2 Gene

(9) Drugs for GJC2 Gene - From: DGIdb, IUPHAR, and Tocris

Name Status Disease Links Group Role Mechanism of Action Clinical Trials
Carbenoxolone Experimental Pharma Inhibitor 0
Flufenamic Acid Experimental Pharma Channel blocker, Inhibitor, Pore Blocker, Antagonist Calcium-activated chloride channel blocker; NSAID. Also activates TRPC6 1
octanol Investigational Pharma Inhibitor 0
Ca<sup>2+</sup> Pharma Activator, Full agonist, Agonist, Inhibitor, Antagonist, Channel blocker 0
10Panx Pharma Panx-1 mimetic inhibitor, Panx-1 mimetic inhibitory peptide; blocks pannexin-1 gap junctions 0

(5) Tocris Compounds for GJC2 Gene

Compound Action Cas Number
10Panx Panx-1 mimetic inhibitory peptide; blocks pannexin-1 gap junctions 955091-53-9
Carbenoxolone disodium Gap junction blocker. Also inhibitor of 11 beta-hydroxysteroid dehydrogenase 7421-40-1
Gap 26 Gap junction blocker; inhibits smooth muscle contraction and IP3-mediated ATP release 197250-15-0
Gap 27 Selective gap junction blocker 198284-64-9
Scrambled 10Panx Scrambled version of 10Panx (Cat. No. 3348), Panx-1 mimetic inhibitory peptide 1315378-72-3
genes like me logo Genes that share compounds with GJC2: view

Transcripts for GJC2 Gene

mRNA/cDNA for GJC2 Gene

(1) REFSEQ mRNAs :
(4) Additional mRNA sequences :
(32) Selected AceView cDNA sequences:
(1) Ensembl transcripts including schematic representations, and UCSC links where relevant :

Unigene Clusters for GJC2 Gene

Gap junction protein, gamma 2, 47kDa:
Representative Sequences:

CRISPR Products

Inhibitory RNA Products

  • Search GeneCopoeia for shRNA, lentivirus and/or AAV clone products for GJC2

Clone Products

Alternative Splicing Database (ASD) splice patterns (SP) for GJC2 Gene

No ASD Table

Relevant External Links for GJC2 Gene

GeneLoc Exon Structure for
GJC2
ECgene alternative splicing isoforms for
GJC2

Expression for GJC2 Gene

mRNA expression in normal human tissues from GTEx, Illumina, BioGPS, and CGAP SAGE for GJC2 Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for GJC2 Gene

This gene is overexpressed in Brain - Spinal cord (cervical c-1) (x10.9) and Brain - Substantia nigra (x6.0).

Protein differential expression in normal tissues from HIPED for GJC2 Gene

This gene is overexpressed in Serum (61.1).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB and MOPED for GJC2 Gene



Protein tissue co-expression partners for GJC2 Gene

- Elite partner

NURSA nuclear receptor signaling pathways regulating expression of GJC2 Gene:

GJC2

SOURCE GeneReport for Unigene cluster for GJC2 Gene:

Hs.100072

mRNA Expression by UniProt/SwissProt for GJC2 Gene:

Q5T442-CXG2_HUMAN
Tissue specificity: Expressed in central nervous system, in sciatic nerve and sural nerve. Also detected in skeletal muscles.

Evidence on tissue expression from TISSUES for GJC2 Gene

  • Nervous system(4.5)

Phenotype-based relationships between genes and organs from Gene ORGANizer for GJC2 Gene

Germ Layers:
  • ectoderm
  • endoderm
  • mesoderm
Systems:
  • cardiovascular
  • digestive
  • immune
  • integumentary
  • lymphatic
  • nervous
  • reproductive
  • respiratory
  • skeletal muscle
  • skeleton
Regions:
Head and neck:
  • brain
  • cerebellum
  • cranial nerve
  • ear
  • eye
  • eyelid
  • face
  • head
  • neck
Thorax:
  • chest wall
  • heart
  • lung
  • rib
  • rib cage
Abdomen:
  • abdominal wall
  • intestine
  • large intestine
  • small intestine
Pelvis:
  • pelvis
  • placenta
  • testicle
  • uterus
Limb:
  • digit
  • finger
  • foot
  • hand
  • lower limb
  • nail
  • toe
  • upper limb
General:
  • blood
  • blood vessel
  • hair
  • lymph node
  • lymph vessel
  • peripheral nerve
  • peripheral nervous system
  • skin
  • spinal column
  • spinal cord
  • vertebrae
genes like me logo Genes that share expression patterns with GJC2: view

Orthologs for GJC2 Gene

This gene was present in the common ancestor of chordates.

Orthologs for GJC2 Gene

Organism Taxonomy Gene Similarity Type Details
chimpanzee
(Pan troglodytes)
Mammalia GJC2 34 33
  • 99.54 (n)
OneToOne
cow
(Bos Taurus)
Mammalia GJC2 34 33
  • 81.68 (n)
OneToOne
dog
(Canis familiaris)
Mammalia GJC2 33
  • 81.4 (n)
mouse
(Mus musculus)
Mammalia Gjc2 16 34 33
  • 80.59 (n)
rat
(Rattus norvegicus)
Mammalia Gjc2 33
  • 79.83 (n)
oppossum
(Monodelphis domestica)
Mammalia GJC2 34
  • 65 (a)
OneToOne
chicken
(Gallus gallus)
Aves GJC2 34
  • 57 (a)
OneToOne
lizard
(Anolis carolinensis)
Reptilia GJC2 34
  • 56 (a)
OneToOne
tropical clawed frog
(Silurana tropicalis)
Amphibia Str.2895 33
zebrafish
(Danio rerio)
Actinopterygii cx47.1 34
  • 53 (a)
OneToOne
Species where no ortholog for GJC2 was found in the sources mined by GeneCards:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • fruit fly (Drosophila melanogaster)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • platypus (Ornithorhynchus anatinus)
  • rainbow trout (Oncorhynchus mykiss)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)

Evolution for GJC2 Gene

ENSEMBL:
Gene Tree for GJC2 (if available)
TreeFam:
Gene Tree for GJC2 (if available)
Aminode:
Evolutionary constrained regions (ECRs) for GJC2: view image

Paralogs for GJC2 Gene

Paralogs for GJC2 Gene

(6) SIMAP similar genes for GJC2 Gene using alignment to 2 proteins:

  • CXG2_HUMAN
  • B9U3U6_HUMAN
genes like me logo Genes that share paralogs with GJC2: view

Variants for GJC2 Gene

Sequence variations from dbSNP and Humsavar for GJC2 Gene

SNP ID Clin Chr 01 pos Variation AA Info Type
rs116557768 benign, Spastic paraplegia, not specified 228,158,352(+) C/T coding_sequence_variant, synonymous_variant
rs139992251 likely-benign, benign, not specified, Spastic paraplegia 228,157,905(+) C/T coding_sequence_variant, synonymous_variant
rs140942230 likely-benign, Spastic paraplegia, not provided 228,158,951(+) C/T coding_sequence_variant, missense_variant
rs201796910 benign, Spastic paraplegia 228,158,286(+) G/A coding_sequence_variant, synonymous_variant
rs267606846 pathogenic, Lymphedema, hereditary, IC, Lymphedema, hereditary, 1C (LMPH1C) [MIM:613480] 228,158,536(+) C/T coding_sequence_variant, missense_variant

Structural Variations from Database of Genomic Variants (DGV) for GJC2 Gene

Variant ID Type Subtype PubMed ID
dgv105n67 CNV gain 20364138
dgv839n54 CNV loss 21841781
esv32853 CNV gain 17666407
nsv1160102 CNV deletion 26073780
nsv473804 CNV novel sequence insertion 20440878
nsv523935 CNV loss 19592680
nsv549290 CNV loss 21841781
nsv549291 CNV loss 21841781
nsv826908 CNV gain 20364138
nsv827019 CNV loss 20364138
nsv827031 CNV gain 20364138
nsv952137 CNV deletion 24416366

Variation tolerance for GJC2 Gene

Residual Variation Intolerance Score: 34.8% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 0.87; 18.23% of all genes are more intolerant (likely to be disease-causing)

Additional Variant Information for GJC2 Gene

Human Gene Mutation Database (HGMD)
GJC2
SNPedia medical, phenotypic, and genealogical associations of SNPs for
GJC2

SNP Genotyping and Copy Number Assay Products

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for GJC2 Gene

Disorders for GJC2 Gene

MalaCards: The human disease database

(25) MalaCards diseases for GJC2 Gene - From: HGMD, OMIM, ClinVar, GTR, Orphanet, Swiss-Prot, DISEASES, Novoseek, and GeneCards

UniProtKB/Swiss-Prot

CXG2_HUMAN
  • Leukodystrophy, hypomyelinating, 2 (HLD2) [MIM:608804]: An autosomal recessive hypomyelinating leukodystrophy with symptoms of Pelizaeus-Merzbacher disease. Clinically characterized by nystagmus, impaired motor development, ataxia, choreoathetotic movements, dysarthria, and progressive spasticity. {ECO:0000269 PubMed:15192806}. Note=The disease is caused by mutations affecting the gene represented in this entry.
  • Spastic paraplegia 44, autosomal recessive (SPG44) [MIM:613206]: A form of spastic paraplegia, a neurodegenerative disorder characterized by a slow, gradual, progressive weakness and spasticity of the lower limbs. Rate of progression and the severity of symptoms are quite variable. Initial symptoms may include difficulty with balance, weakness and stiffness in the legs, muscle spasms, and dragging the toes when walking. In some forms of the disorder, bladder symptoms (such as incontinence) may appear, or the weakness and stiffness may spread to other parts of the body. {ECO:0000269 PubMed:19056803}. Note=The disease is caused by mutations affecting the gene represented in this entry.
  • Lymphedema, hereditary, 1C (LMPH1C) [MIM:613480]: A chronic disabling condition which results in swelling of the extremities due to altered lymphatic flow. Patients with lymphedema suffer from recurrent local infections and physical impairment. {ECO:0000269 PubMed:20537300}. Note=The disease is caused by mutations affecting the gene represented in this entry.

Additional Disease Information for GJC2

genes like me logo Genes that share disorders with GJC2: view

No data available for Genatlas for GJC2 Gene

Publications for GJC2 Gene

  1. Hereditary spastic paraplegia is a novel phenotype for GJA12/GJC2 mutations. (PMID: 19056803) Orthmann-Murphy JL … Pareyson D (Brain : a journal of neurology 2009) 2 3 4 22 58
  2. Mutations in the gene encoding gap junction protein alpha 12 (connexin 46.6) cause Pelizaeus-Merzbacher-like disease. (PMID: 15192806) Uhlenberg B … Gärtner J (American journal of human genetics 2004) 3 4 22 58
  3. GJC2 missense mutations cause human lymphedema. (PMID: 20537300) Ferrell RE … Finegold DN (American journal of human genetics 2010) 3 4 58
  4. Two novel gap junction protein alpha 12 gene mutations in two Chinese patients with Pelizaeus-Merzbacher-like disease. (PMID: 19423250) Wang J … Jiang Y (Brain & development 2010) 3 22 58
  5. Analysis of human alternative first exons and copy number variation of the GJA12 gene in patients with Pelizaeus-Merzbacher-like disease. (PMID: 18521858) Ruf N … Uhlenberg B (American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics 2009) 3 22 58

Products for GJC2 Gene

Sources for GJC2 Gene

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