C2orf42

protein-coding

chromosome 2 open reading frame 42

Gene summary

Located in nucleoplasm. [provided by Alliance of Genome Resources, Jul 2025]

MANE transcript

NM_017880.3

Inheritance

—

ClinVar variants

U:9

Top phenotype

—

gnomAD constraint

pLI —, LoF o/e 0.33

Max pathogenic AF

—

Genomic locus

chr2:70,149,885-70,248,615

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~98.7 kb
Loading mutation effect viewer...

GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

No GenCC data available for this gene.

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to C2orf42 variants in ClinVar

2 Conditions Cataloged
not specifiedTotal: 6
not providedTotal: 1

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_017880.3. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
1
clinvar
1
missense
6
clinvar
6
nonsense
1
clinvar
1
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
1
clinvar
1
Total009009
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 31 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_017880.3RefSeqNP_060350.18MANE Select
ENST00000264434.7EnsemblENSP00000264434.28MANE Select
NM_001348758.2RefSeqNP_001335687.18Standard
NM_001348759.2RefSeqNP_001335688.18Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Molecular Function

  • protein binding

Cellular Component

  • nucleus
  • nuclear membrane

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000264434
Coding exons
8
Length
98736
Individuals with no LoFs
125722
Homozygous LoFs
0
Heterozygous LoFs
26
Defined
125748
p
0.000103
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense1.062673210.8330.00001793725
Missense (PolyPhen)81105.30.769221158
Synonymous1.291061240.8530.000006501156
Loss of Function3.23927.20.3310.00000149311

Population LoF Frequency

PopulationCAFp-valueStatus
African0.000120.00012rare
Latino/Admixed American0.000170.00017rare
Ashkenazi Jewish0.000200.00020rare
East Asian0.000110.00011rare
Finnish0.0000470.000046rare
European (Non-Finnish)0.0000790.000079rare
South Asian0.0000980.000098rare
Other0.000160.00016rare

dbNSFP Gene Annotations

Source: dbNSFP

Intolerance Scores

LoFtool
0.250
RVIS EVS
0.24
RVIS percentile EVS
69.46

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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