rs759937836

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_213607.3(DNAAF19):c.710A>G(p.Glu237Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000173 in 1,562,554 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 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. E237E) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

DNAAF19
NM_213607.3 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: -0.264

Publications

1 publications found

Variant links:

Genes affected

DNAAF19 (HGNC:32700): (coiled-coil domain containing 103) Enables protein homodimerization activity. Involved in axonemal dynein complex assembly; cilium movement; and determination of left/right symmetry. Predicted to be located in axoneme. Predicted to be part of outer dynein arm. Implicated in primary ciliary dyskinesia 17. [provided by Alliance of Genome Resources, Apr 2022]

DNAAF19 Gene-Disease associations (from GenCC):

primary ciliary dyskinesia 17
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae), PanelApp Australia, G2P
primary ciliary dyskinesia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

DNAAF19 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.08770427).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNAAF19	NM_213607.3 link	c.710A>G	p.Glu237Gly	missense_variant	Exon 4 of 4	ENST00000417826.3	NP_998772.1	Q8IW40-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CCDC103	ENST00000417826.3 link	c.710A>G	p.Glu237Gly	missense_variant	Exon 4 of 4	1	NM_213607.3	ENSP00000391692.2	Q8IW40-1
CCDC103	ENST00000410006.6 link	c.710A>G	p.Glu237Gly	missense_variant	Exon 4 of 4	2		ENSP00000387252.1	Q8IW40-1
CCDC103	ENST00000357776.6 link	c.710A>G	p.Glu237Gly	missense_variant, splice_region_variant	Exon 4 of 4	2		ENSP00000350420.2	F8W6J8

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

151806

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000484

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:

0.0000442

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00

AC:

AN:

169316

AF XY:

0.00

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS 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:

0.0000156

AC:

AN:

1410748

Hom.:

Cov.:

AF XY:

0.0000186

AC XY:

AN XY:

697204

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32228

American (AMR)

AF:

0.00

AC:

AN:

36696

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25164

East Asian (EAS)

AF:

0.00

AC:

AN:

36774

South Asian (SAS)

AF:

0.00

AC:

AN:

81098

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5432

European-Non Finnish (NFE)

AF:

0.0000203

AC:

AN:

1085358

Other (OTH)

AF:

0.00

AC:

AN:

58390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.527

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000329

AC:

AN:

151806

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74140

show subpopulations

African (AFR)

AF:

0.0000484

AC:

AN:

41284

American (AMR)

AF:

0.00

AC:

AN:

15256

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4796

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10568

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000442

AC:

AN:

67940

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.0000341

Hom.:

Bravo

AF:

0.0000264

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Primary ciliary dyskinesia

Uncertain:2

Aug 27, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces glutamic acid with glycine at codon 237 of the CCDC103 protein (p.Glu237Gly). The glutamic acid residue is weakly conserved and there is a moderate physicochemical difference between glutamic acid and glycine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals affected with CCDC103-related conditions. ClinVar contains an entry for this variant (Variation ID: 455030). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0". The glycine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. -

Nov 08, 2018

UNC Molecular Genetics Laboratory, University of North Carolina at Chapel Hill

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.044

BayesDel_addAF

Benign

-0.092

BayesDel_noAF

Benign

-0.37

CADD

Benign

0.76

(source)

DANN

Benign

0.78

DEOGEN2

Benign

0.033

T;.;T;.

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.0044

LIST_S2

Benign

0.26

.;T;.;T

M_CAP

Benign

0.050

MetaRNN

Benign

0.053

T;T;T;T

MetaSVM

Benign

-0.90

MutationAssessor

Benign

-1.4

N;.;N;.

PhyloP100

-0.26

PrimateAI

Benign

0.24

PROVEAN

Benign

-0.010

N;N;N;.

REVEL

Benign

0.23

Sift

Benign

0.32

T;D;T;.

Sift4G

Benign

0.31

T;T;T;T

Polyphen

0.0

B;.;B;.

Vest4

0.030

MVP

0.40

MPC

0.22

ClinPred

0.24

GERP RS

-6.8

Varity_R

0.027

gMVP

0.40

Mutation Taster

=97/3

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over