Genetic Variant ONECUT2:p.Leu114Pro (chr18-57436057-T-C) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_004852.3(ONECUT2):c.341T>C(p.Leu114Pro) variant causes a missense change. The variant allele was found at a frequency of 0.00000208 in 1,442,286 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

ONECUT2
NM_004852.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.13

Publications

0 publications found

Variant links:

Genes affected

ONECUT2 (HGNC:8139): (one cut homeobox 2) This gene encodes a member of the onecut family of transcription factors, which are characterized by a cut domain and an atypical homeodomain. The protein binds to specific DNA sequences and stimulates expression of target genes, including genes involved in melanocyte and hepatocyte differentiation. [provided by RefSeq, Jul 2008]

ONECUT2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.86

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ONECUT2	NM_004852.3 link	c.341T>C	p.Leu114Pro	missense_variant	Exon 1 of 2	ENST00000491143.3	NP_004843.2	O95948

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ONECUT2	ENST00000491143.3 link	c.341T>C	p.Leu114Pro	missense_variant	Exon 1 of 2	1	NM_004852.3	ENSP00000419185.2		O95948

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000447

AC:

AN:

223750

AF XY:

0.00000811

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000568

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000208

AC:

AN:

1442286

Hom.:

Cov.:

AF XY:

0.00000279

AC XY:

AN XY:

717208

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33402

American (AMR)

AF:

0.00

AC:

AN:

44498

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25844

East Asian (EAS)

AF:

0.00

AC:

AN:

39604

South Asian (SAS)

AF:

0.00

AC:

AN:

85658

European-Finnish (FIN)

AF:

0.00

AC:

AN:

38536

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5652

European-Non Finnish (NFE)

AF:

9.02e-7

AC:

AN:

1109052

Other (OTH)

AF:

0.0000167

AC:

AN:

60040

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000828

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 28, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.341T>C (p.L114P) alteration is located in exon 1 (coding exon 1) of the ONECUT2 gene. This alteration results from a T to C substitution at nucleotide position 341, causing the leucine (L) at amino acid position 114 to be replaced by a proline (P). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.90

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Benign

-0.21

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.71

Eigen

Uncertain

0.44

Eigen_PC

Uncertain

0.31

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.97

M_CAP

Pathogenic

0.91

MetaRNN

Pathogenic

0.86

MetaSVM

Benign

-0.50

MutationAssessor

Uncertain

2.6

PhyloP100

7.1

PrimateAI

Pathogenic

0.97

REVEL

Benign

0.25

Sift4G

Uncertain

0.045

Polyphen

1.0

Vest4

0.81

MutPred

0.26

Loss of stability (P = 0.0025);

MVP

0.78

MPC

2.2

ClinPred

0.90

GERP RS

2.2

Varity_R

0.57

gMVP

0.85

Mutation Taster

=37/63

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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18-57436057-T-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over