17-15437922-C-T

Position:

chr17-15437922-C-T

Variant summary

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

The NM_001204477.2(CDRT4):c.310G>A(p.Ala104Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000044 in 1,614,164 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/15 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000037 ( 0 hom. )

Consequence

CDRT4
NM_001204477.2 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -2.97

Variant links:

Genes affected

CDRT4 (HGNC:14383): (CMT1A duplicated region transcript 4)

CDRT4 links:

TVP23C-CDRT4 (HGNC:42961): (TVP23C-CDRT4 readthrough) This locus represents naturally occurring readthrough transcription between the neighboring TVP23C (trans-golgi network vesicle protein 23 homolog) and CDRT4 (CMT1A duplicated region transcript 4) genes on chromosome 17. Alternative splicing results in multiple transcript variants, one of which encodes a protein that shares sequence identity with the upstream gene product, but its C-terminus is distinct due to frameshifts relative to the downstream gene. [provided by RefSeq, Apr 2014]

TVP23C-CDRT4 links:

CDRT4 (HGNC:):

CDRT4 links:

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=0.014238089).

BP6

Variant 17-15437922-C-T is Benign according to our data. Variant chr17-15437922-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3141727.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CDRT4	NM_001204477.2 linkuse as main transcript	c.310G>A	p.Ala104Thr	missense_variant	4/4	ENST00000619038.5	NP_001191406.1	Q8N9R6
TVP23C-CDRT4	NM_001204478.2 linkuse as main transcript	c.*324G>A		3_prime_UTR_variant	7/7		NP_001191407.1	Q96ET8-2A0A0A6YYB9
TVP23C-CDRT4	NR_037924.2 linkuse as main transcript	n.709G>A		non_coding_transcript_exon_variant	6/6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CDRT4	ENST00000619038.5 linkuse as main transcript	c.310G>A	p.Ala104Thr	missense_variant	4/4	1	NM_001204477.2	ENSP00000482523.1		Q8N9R6
TVP23C-CDRT4	ENST00000522212 linkuse as main transcript	c.*324G>A		3_prime_UTR_variant	7/7	2		ENSP00000429865.1		A0A0A6YYB9

Frequencies

GnomAD3 genomes

AF:

0.000112

AC:

AN:

152158

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.000191

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000875

AC:

AN:

251440

Hom.:

AF XY:

0.0000883

AC XY:

AN XY:

135880

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000163

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000114

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000369

AC:

AN:

1461888

Hom.:

Cov.:

AF XY:

0.0000303

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000342

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.000112

AC:

AN:

152276

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74460

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000261

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000191

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000494

Hom.:

Bravo

AF:

0.0000604

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000741

AC:

Asia WGS

AF:

0.00289

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000119

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 submitter

clinical testing

Ambry Genetics

Jan 24, 2024

This 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

0.073

BayesDel_addAF

Benign

-0.63

BayesDel_noAF

Benign

-0.85

CADD

Benign

0.0010

DANN

Benign

0.62

Eigen

Benign

-2.7

Eigen_PC

Benign

-2.7

FATHMM_MKL

Benign

0.0014

LIST_S2

Benign

0.37

M_CAP

Benign

0.0011

MetaRNN

Benign

0.014

MetaSVM

Benign

-1.0

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.21

Sift4G

Benign

0.85

Vest4

0.028

MVP

0.014

ClinPred

0.022

GERP RS

-8.6

gMVP

0.019

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

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over