GMNC

protein-coding

geminin coiled-coil domain containing

Gene summary

Predicted to enable chromatin binding activity and transcription coregulator activity. Predicted to be involved in regulation of DNA-templated DNA replication initiation. Predicted to act upstream of or within several processes, including cerebrospinal fluid circulation; multi-ciliated epithelial cell differentiation; and seminiferous tubule development. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Jun 2026]

MANE transcript

NM_001146686.3

Inheritance

—

ClinVar variants

U:56

Top phenotype

—

gnomAD constraint

pLI —, LoF o/e 0.21

Max pathogenic AF

—

Genomic locus

chr3:190,852,737-190,892,429

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~39.7 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 GMNC variants in ClinVar

1 Conditions Cataloged
not specifiedTotal: 56

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_001146686.3. 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
0
missense
56
clinvar
56
nonsense
0
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
0
Total00560056
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 5 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_001146686.3RefSeqNP_001140158.15MANE Select
ENST00000442080.6EnsemblENSP00000406164.15MANE Select
ENST00000456552.1EnsemblENSP00000396337.13Standard
ENST00001126908.1EnsemblENSP00000796713.13Standard

Model Organisms & Knockout Phenotypes

Observed phenotypic effects in mouse and zebrafish models

Gene / ModelOrganismObserved Phenotype
gmncDanio rerio

Structure: pronephric tubule

Quality: lacks parts or has fewer parts of type

abnormal

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Biological Process

  • DNA replication initiation
  • cell cycle
  • cell population proliferation
  • cilium assembly

Molecular Function

  • chromatin binding

Cellular Component

  • nucleus

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000442080
Coding exons
5
Length
39553
Individuals with no LoFs
0
Homozygous LoFs
0
Heterozygous LoFs
0
Defined
0
p
0.00
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense0.5341491690.8840.000008262183
Missense (PolyPhen)5764.2930.88657861
Synonymous1.774967.50.7260.00000380636
Loss of Function2.76314.20.2116.47e-7190

Population LoF Frequency

PopulationCAFp-valueStatus
African00.0absent
Latino/Admixed American00.0absent
Ashkenazi Jewish00.0absent
East Asian00.0absent
Finnish00.0absent
European (Non-Finnish)00.0absent
South Asian00.0absent
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Regulator of DNA replication. Promotes initiation of chromosomal DNA replication by mediating TOPBP1- and CDK2- dependent recruitment of CDC45L onto replication origins (By similarity). {ECO:0000250}.;

Intolerance Scores

RVIS EVS
1.41
RVIS percentile EVS
94.84

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N
Indispensability pred.
N
Indispensability score
0.114

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyHighMediumHigh
CancerHighHighHigh
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