3-14728646-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_032137.5(C3orf20):​c.1898G>A​(p.Arg633Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000738 in 1,612,526 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000093 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000072 ( 0 hom. )

Consequence

C3orf20
NM_032137.5 missense

Scores

18

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.766
Variant links:
Genes affected
C3orf20 (HGNC:25320): (chromosome 3 open reading frame 20) Located in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.054024965).
BP6
Variant 3-14728646-G-A is Benign according to our data. Variant chr3-14728646-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3135999.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
C3orf20NM_032137.5 linkuse as main transcriptc.1898G>A p.Arg633Gln missense_variant 12/17 ENST00000253697.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
C3orf20ENST00000253697.8 linkuse as main transcriptc.1898G>A p.Arg633Gln missense_variant 12/171 NM_032137.5 P2Q8ND61-1
C3orf20ENST00000412910.1 linkuse as main transcriptc.1532G>A p.Arg511Gln missense_variant 12/171 A2Q8ND61-2
C3orf20ENST00000435614.5 linkuse as main transcriptc.1532G>A p.Arg511Gln missense_variant 12/171 A2Q8ND61-2

Frequencies

GnomAD3 genomes
AF:
0.0000928
AC:
14
AN:
150808
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000195
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:
0.0000888
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251408
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135874
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000718
AC:
105
AN:
1461718
Hom.:
0
Cov.:
32
AF XY:
0.0000591
AC XY:
43
AN XY:
727148
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.0000890
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000928
AC:
14
AN:
150808
Hom.:
0
Cov.:
32
AF XY:
0.0000950
AC XY:
7
AN XY:
73686
show subpopulations
Gnomad4 AFR
AF:
0.000195
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:
0.0000888
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000494
Hom.:
0
Bravo
AF:
0.0000945
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsNov 16, 2021This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.092
BayesDel_addAF
Benign
-0.54
T
BayesDel_noAF
Benign
-0.83
CADD
Benign
0.69
DANN
Benign
0.80
DEOGEN2
Benign
0.0058
T;.;.
Eigen
Benign
-1.9
Eigen_PC
Benign
-1.9
FATHMM_MKL
Benign
0.00060
N
LIST_S2
Benign
0.41
T;.;T
M_CAP
Benign
0.0016
T
MetaRNN
Benign
0.054
T;T;T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
0.94
L;.;.
MutationTaster
Benign
1.0
N;N;N
PROVEAN
Benign
-0.52
N;N;N
REVEL
Benign
0.047
Sift
Benign
0.19
T;T;T
Sift4G
Benign
0.11
T;T;T
Polyphen
0.062
B;B;B
Vest4
0.11
MVP
0.22
MPC
0.093
ClinPred
0.024
T
GERP RS
-3.4
Varity_R
0.031
gMVP
0.26

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.15
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.

Other links and lift over

dbSNP: rs138616841; hg19: chr3-14770153; COSMIC: COSV53788386; API