rs141540461

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_145038.5(DRC1):​c.617G>A​(p.Arg206Gln) variant causes a missense change. The variant allele was found at a frequency of 0.000116 in 1,614,106 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R206W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 30)
Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

DRC1
NM_145038.5 missense

Scores

4
6
9

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 6.71

Publications

0 publications found
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 Gene-Disease associations (from GenCC):
  • primary ciliary dyskinesia 21
    Inheritance: AR Classification: STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae)
  • primary ciliary dyskinesia
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • spermatogenic failure 80
    Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DRC1NM_145038.5 linkc.617G>A p.Arg206Gln missense_variant Exon 5 of 17 ENST00000288710.7 NP_659475.2 Q96MC2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DRC1ENST00000288710.7 linkc.617G>A p.Arg206Gln missense_variant Exon 5 of 17 2 NM_145038.5 ENSP00000288710.2 Q96MC2

Frequencies

GnomAD3 genomes
AF:
0.0000855
AC:
13
AN:
152118
Hom.:
0
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.0000966
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.000118
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000716
AC:
18
AN:
251472
AF XY:
0.0000809
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.000145
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000879
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000120
AC:
175
AN:
1461870
Hom.:
0
Cov.:
30
AF XY:
0.000109
AC XY:
79
AN XY:
727236
show subpopulations
African (AFR)
AF:
0.000119
AC:
4
AN:
33480
American (AMR)
AF:
0.000246
AC:
11
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53418
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.000138
AC:
154
AN:
1111994
Other (OTH)
AF:
0.0000828
AC:
5
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.459
Heterozygous variant carriers
0
10
20
31
41
51
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000854
AC:
13
AN:
152236
Hom.:
0
Cov.:
30
AF XY:
0.000107
AC XY:
8
AN XY:
74436
show subpopulations
African (AFR)
AF:
0.0000963
AC:
4
AN:
41536
American (AMR)
AF:
0.0000654
AC:
1
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000118
AC:
8
AN:
68014
Other (OTH)
AF:
0.00
AC:
0
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.544
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000744
Hom.:
0
Bravo
AF:
0.000147
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000659
AC:
8
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Mar 20, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.617G>A (p.R206Q) alteration is located in exon 5 (coding exon 5) of the DRC1 gene. This alteration results from a G to A substitution at nucleotide position 617, causing the arginine (R) at amino acid position 206 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Primary ciliary dyskinesia Uncertain:1
Sep 05, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 206 of the DRC1 protein (p.Arg206Gln). This variant is present in population databases (rs141540461, gnomAD 0.01%). 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: 565442). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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
Uncertain
0.40
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.18
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.14
T
Eigen
Pathogenic
0.74
Eigen_PC
Pathogenic
0.71
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.94
D
M_CAP
Benign
0.027
D
MetaRNN
Uncertain
0.61
D
MetaSVM
Benign
-0.89
T
MutationAssessor
Pathogenic
3.0
M
PhyloP100
6.7
PrimateAI
Benign
0.48
T
PROVEAN
Uncertain
-2.8
D
REVEL
Benign
0.25
Sift
Uncertain
0.012
D
Sift4G
Benign
0.21
T
Polyphen
1.0
D
Vest4
0.67
MVP
0.56
MPC
0.36
ClinPred
0.93
D
GERP RS
5.3
Varity_R
0.79
gMVP
0.58
Mutation Taster
=82/18
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs141540461; hg19: chr2-26652572; COSMIC: COSV99984924; COSMIC: COSV99984924; API