Variant chr3-14714110-C-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_032137.5(C3orf20):c.1264C>A(p.Leu422Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000248 in 1,613,644 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L422V) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

C3orf20
NM_032137.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.0790

Variant links:

Genes affected

C3orf20 (HGNC:25320): (chromosome 3 open reading frame 20) Located in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

C3orf20 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.17576063).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
C3orf20	NM_032137.5 linkuse as main transcript	c.1264C>A	p.Leu422Ile	missense_variant	8/17	ENST00000253697.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
C3orf20	ENST00000253697.8 linkuse as main transcript	c.1264C>A	p.Leu422Ile	missense_variant	8/17	1	NM_032137.5	P2	Q8ND61-1
C3orf20	ENST00000412910.1 linkuse as main transcript	c.898C>A	p.Leu300Ile	missense_variant	8/17	1		A2	Q8ND61-2
C3orf20	ENST00000435614.5 linkuse as main transcript	c.898C>A	p.Leu300Ile	missense_variant	8/17	1		A2	Q8ND61-2
C3orf20	ENST00000495387.1 linkuse as main transcript	n.368C>A		non_coding_transcript_exon_variant	2/5	3

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

151952

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000484

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000399

AC:

AN:

250910

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135598

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000882

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000253

AC:

AN:

1461692

Hom.:

Cov.:

AF XY:

0.0000261

AC XY:

AN XY:

727132

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000333

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

151952

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74218

show subpopulations

Gnomad4 AFR

AF:

0.0000484

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.00000824

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.094

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.53

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.0051

T;.;.

Eigen

Benign

0.087

Eigen_PC

Benign

0.024

FATHMM_MKL

Benign

0.34

LIST_S2

Benign

0.69

T;.;T

M_CAP

Benign

0.0084

MetaRNN

Benign

0.18

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.2

M;.;.

MutationTaster

Benign

0.96

P;P;P

PROVEAN

Benign

-0.68

N;N;N

REVEL

Benign

0.090

Sift

Benign

0.12

T;T;T

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

0.87

P;.;.

Vest4

0.39

MutPred

0.19

Loss of loop (P = 0.0804);.;.;

MVP

0.11

MPC

0.43

ClinPred

0.89

GERP RS

1.6

Varity_R

0.064

gMVP

0.11

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

LitVar

Other links and lift over