2-26402003-G-A

Variant summary

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

The NM_145038.5(DRC1):c.14G>A(p.Gly5Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000871 in 1,607,680 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. G5G) has been classified as Likely benign.

Frequency

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

Exomes 𝑓: 0.0000076 ( 0 hom. )

Consequence

DRC1
NM_145038.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.304

Variant links:

Genes affected

DRC1 (HGNC:24245): (dynein regulatory complex subunit 1) This gene encodes a central component of the nexin-dynein complex (N-DRC), which regulates the assembly of ciliary dynein. Mutations in this gene can cause ciliary dyskinesia. [provided by RefSeq, Aug 2015]

DRC1 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=0.07577595).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
DRC1	NM_145038.5 linkuse as main transcript	c.14G>A	p.Gly5Glu	missense_variant	1/17	ENST00000288710.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
DRC1	ENST00000288710.7 linkuse as main transcript	c.14G>A	p.Gly5Glu	missense_variant	1/17	2	NM_145038.5	P1
DRC1	ENST00000421869.5 linkuse as main transcript	c.14G>A	p.Gly5Glu	missense_variant, NMD_transcript_variant	1/8	1
DRC1	ENST00000649059.1 linkuse as main transcript			upstream_gene_variant

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152240

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000127

AC:

AN:

236500

Hom.:

AF XY:

0.00

AC XY:

AN XY:

128384

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000892

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000756

AC:

AN:

1455440

Hom.:

Cov.:

AF XY:

0.00000553

AC XY:

AN XY:

723338

show subpopulations

Gnomad4 AFR exome

AF:

0.0000300

Gnomad4 AMR exome

AF:

0.0000680

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:

0.00000180

Gnomad4 OTH exome

AF:

0.0000832

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152240

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74374

show subpopulations

Gnomad4 AFR

AF:

0.0000482

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ExAC

AF:

0.00000825

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Primary ciliary dyskinesia

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Jun 26, 2022

This sequence change replaces glycine, which is neutral and non-polar, with glutamic acid, which is acidic and polar, at codon 5 of the DRC1 protein (p.Gly5Glu). This variant is present in population databases (rs767420758, gnomAD 0.009%). This variant has not been reported in the literature in individuals affected with DRC1-related conditions. ClinVar contains an entry for this variant (Variation ID: 643296). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.48

BayesDel_noAF

Benign

-0.74

Cadd

Benign

Dann

Uncertain

0.99

DEOGEN2

Benign

0.0042

Eigen

Benign

-0.58

Eigen_PC

Benign

-0.73

FATHMM_MKL

Benign

0.046

LIST_S2

Benign

0.70

M_CAP

Benign

0.0054

MetaRNN

Benign

0.076

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.68

MutationTaster

Benign

1.0

PrimateAI

Benign

0.42

PROVEAN

Benign

-1.7

REVEL

Benign

0.098

Sift

Uncertain

0.0050

Sift4G

Uncertain

0.0080

Polyphen

0.83

Vest4

0.24

MutPred

0.088

Loss of glycosylation at S6 (P = 0.0927);

MVP

0.19

MPC

0.086

ClinPred

0.14

GERP RS

-2.0

Varity_R

0.095

gMVP

0.48

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