17-17994395-C-T

Position:

chr17-17994395-C-T

Variant summary

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

The NM_031294.4(DRC3):c.688C>T(p.Arg230Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000837 in 1,553,310 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000064 ( 0 hom. )

Consequence

DRC3
NM_031294.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.240

Variant links:

Genes affected

DRC3 (HGNC:25384): (dynein regulatory complex subunit 3) Located in axoneme. [provided by Alliance of Genome Resources, Apr 2022]

DRC3 links:

DRC3 (HGNC:):

DRC3 links:

ATPAF2 (HGNC:18802): (ATP synthase mitochondrial F1 complex assembly factor 2) This gene encodes an assembly factor for the F(1) component of the mitochondrial ATP synthase. This protein binds specifically to the F1 alpha subunit and is thought to prevent this subunit from forming nonproductive homooligomers during enzyme assembly. This gene is located within the Smith-Magenis syndrome region on chromosome 17. An alternatively spliced transcript variant has been described, but its biological validity has not been determined. [provided by RefSeq, Jul 2008]

ATPAF2 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=0.10275006).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DRC3	NM_031294.4 linkuse as main transcript	c.688C>T	p.Arg230Trp	missense_variant	7/14	ENST00000399187.6	NP_112584.3	Q9H069-1B3KSC6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
DRC3	ENST00000399187.6 linkuse as main transcript	c.688C>T	p.Arg230Trp	missense_variant	7/14	1	NM_031294.4	ENSP00000382140.1	Q9H069-1
DRC3	ENST00000399182.5 linkuse as main transcript	c.688C>T	p.Arg230Trp	missense_variant	7/13	1		ENSP00000382136.1	Q9H069-2
DRC3	ENST00000584166.5 linkuse as main transcript	c.688C>T	p.Arg230Trp	missense_variant	8/14	5		ENSP00000462661.1	Q9H069-2
DRC3	ENST00000583171.5 linkuse as main transcript	n.*91+1306C>T		intron_variant		3		ENSP00000464101.2	J3QR90

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000385

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000381

AC:

AN:

157344

Hom.:

AF XY:

0.0000360

AC XY:

AN XY:

83282

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000455

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000161

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000642

AC:

AN:

1400990

Hom.:

Cov.:

AF XY:

0.00000579

AC XY:

AN XY:

691200

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000140

Gnomad4 SAS exome

AF:

0.0000126

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000278

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152320

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74482

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000386

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000200

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 28, 2023

The c.688C>T (p.R230W) alteration is located in exon 8 (coding exon 5) of the DRC3 gene. This alteration results from a C to T substitution at nucleotide position 688, causing the arginine (R) at amino acid position 230 to be replaced by a tryptophan (W). 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

Benign

0.092

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.38

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.055

T;T;.;.

Eigen

Benign

-0.48

Eigen_PC

Benign

-0.67

FATHMM_MKL

Benign

0.094

LIST_S2

Benign

0.71

T;.;.;T

M_CAP

Benign

0.015

MetaRNN

Benign

0.10

T;T;T;T

MetaSVM

Benign

-0.98

PrimateAI

Benign

0.21

PROVEAN

Uncertain

-3.2

D;D;.;D

REVEL

Benign

0.035

Sift

Uncertain

0.0090

D;D;.;D

Sift4G

Uncertain

0.0060

D;D;D;D

Polyphen

0.95

P;P;D;D

Vest4

0.13

MutPred

0.38

Loss of methylation at K235 (P = 0.052);Loss of methylation at K235 (P = 0.052);Loss of methylation at K235 (P = 0.052);Loss of methylation at K235 (P = 0.052);

MVP

0.63

MPC

0.18

ClinPred

0.22

GERP RS

0.72

Varity_R

0.095

gMVP

0.38

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