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1 sources retrieved · Most recent: April 2026 · Index updated 15 days ago
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C22orf39
chromosome 22 open reading frame 39
Chromosome 22 · 22q11.21
NCBI Gene: 128977Ensembl: ENSG00000242259.10HGNC: HGNC:27012UniProt: Q6P5X5
18PubMed Papers
20Diseases
0Drugs
0Pathogenic Variants
DATA QUALITY
✓ Experimental GO Evidence✓ Swiss-Prot Reviewed
mitochondrionprotein bindingnegative regulation of long-term synaptic potentiationsynaptic cleftTesticular regression syndrome46,XY complete gonadal dysgenesis46,XX testicular disorder of sex developmentazoospermia
✦AI Summary

Based on limited published evidence, C22orf39 negatively regulates long-term potentiation and modulates adult synaptic plasticity. It stabilizes RTN4 isoform A/Nogo-A interactions with receptors, inhibiting postsynaptic AMPA receptor clustering. Upon neuronal stimulation, C22orf39 is degraded at synapses, reducing RTN4 signaling and permitting AMPA receptor clustering. C22orf39 expression is silenced during MYC-driven hepatocarcinogenesis in liver stem cells, suggesting potential tumor suppressor function 1.

Sources cited
1
C22orf39 expression is completely silenced in MYC-overexpressing liver cancer stem cells, suggesting its absence may be critical for tumorigenesis
PMID: 25717234
⚠Limited data available — This gene has 1 indexed publication. Summary and analysis may be incomplete.
Disease Associationsⓘ20
Testicular regression syndromeOpen Targets
0.06Suggestive
46,XY complete gonadal dysgenesisOpen Targets
0.06Suggestive
46,XX testicular disorder of sex developmentOpen Targets
0.06Suggestive
azoospermiaOpen Targets
0.06Suggestive
46,XY disorder of sex development due to 5-alpha-reductase 2 deficiencyOpen Targets
0.06Suggestive
46,XX ovotesticular disorder of sex developmentOpen Targets
0.06Suggestive
benign prostatic hyperplasiaOpen Targets
0.06Suggestive
hypogonadotropic hypogonadism 11 with or without anosmiaOpen Targets
0.05Suggestive
persistent Mullerian duct syndromeOpen Targets
0.05Suggestive
Persistent Müllerian duct syndromeOpen Targets
0.05Suggestive
cryptorchidismOpen Targets
0.05Suggestive
spermatogenic failure 71Open Targets
0.05Suggestive
familial male-limited precocious pubertyOpen Targets
0.05Suggestive
Sertoli Cell-Only SyndromeOpen Targets
0.05Suggestive
partial chromosome Y deletionOpen Targets
0.05Suggestive
spermatogenic failure 57Open Targets
0.05Suggestive
spermatogenic failure 50Open Targets
0.05Suggestive
X-linked intellectual disability - macrocephaly - macroorchidismOpen Targets
0.04Suggestive
X-linked intellectual disability-macrocephaly-macroorchidism syndromeOpen Targets
0.04Suggestive
hypogonadotropic hypogonadism 14 with or without anosmiaOpen Targets
0.04Suggestive
Pathogenic Variants
No pathogenic variants reported on ClinVar for this gene.
View on ClinVar ↗
Related Genes
VGFShared pathway33%CALB2Shared pathway20%LZTS1Shared pathway20%SORCS3Shared pathway20%JPH4Shared pathway20%IGSF11Shared pathway17%
Tissue Expression

No tissue expression data available for this gene.

Gene Interaction Network
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C22orf39VGFCALB2LZTS1SORCS3JPH4IGSF11
PROTEIN STRUCTURE
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AlphaFoldAI-predicted · UniProt Q6P5X5
View on AlphaFold ↗
Constraintⓘ
LOEUFⓘ
1.96LoF Tolerant
pLIⓘ
0.00Tolerant
Observed/Expected LoF1.76 [1.18–1.96]
RankingsWhere C22orf39 stands among ~20K protein-coding genes
  • #14,651of 20,598
    Most Researched18
  • #17,753of 17,882
    Most Constrained (LOEUF)1.96
Genes detectedC22orf39
Sources retrieved1 papers
Response time—
📄 Sources
1
1
Gene expression profiling of MYC-driven tumor signatures in porcine liver stem cells by transcriptome sequencing.
PMID: 25717234
World J Gastroenterol · 2015
1.00