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GeneBe

17-7734471-C-T

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_ModerateBP6_ModerateBP7BA1

The NM_020877.5(DNAH2):​c.741C>T​(p.Thr247=) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0161 in 1,613,722 control chromosomes in the GnomAD database, including 630 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.014 ( 46 hom., cov: 31)
Exomes 𝑓: 0.016 ( 584 hom. )

Consequence

DNAH2
NM_020877.5 splice_region, synonymous

Scores

2
Splicing: ADA: 0.0002104
2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.0650
Variant links:
Genes affected
DNAH2 (HGNC:2948): (dynein axonemal heavy chain 2) Dyneins are microtubule-associated motor protein complexes composed of several heavy, light, and intermediate chains. The axonemal dyneins, found in cilia and flagella, are components of the outer and inner dynein arms attached to the peripheral microtubule doublets. DNAH2 is an axonemal inner arm dynein heavy chain (Chapelin et al., 1997 [PubMed 9256245]).[supplied by OMIM, Mar 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.31).
BP6
Variant 17-7734471-C-T is Benign according to our data. Variant chr17-7734471-C-T is described in ClinVar as [Benign]. Clinvar id is 3055611.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-0.065 with no splicing effect.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.079 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DNAH2NM_020877.5 linkuse as main transcriptc.741C>T p.Thr247= splice_region_variant, synonymous_variant 7/86 ENST00000572933.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DNAH2ENST00000572933.6 linkuse as main transcriptc.741C>T p.Thr247= splice_region_variant, synonymous_variant 7/862 NM_020877.5 P1Q9P225-1
DNAH2ENST00000570791.5 linkuse as main transcriptc.741C>T p.Thr247= splice_region_variant, synonymous_variant 7/141 Q9P225-3
DNAH2ENST00000389173.6 linkuse as main transcriptc.741C>T p.Thr247= splice_region_variant, synonymous_variant 6/852 P1Q9P225-1

Frequencies

GnomAD3 genomes
AF:
0.0143
AC:
2170
AN:
151784
Hom.:
43
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00286
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0108
Gnomad ASJ
AF:
0.0265
Gnomad EAS
AF:
0.0591
Gnomad SAS
AF:
0.0856
Gnomad FIN
AF:
0.0383
Gnomad MID
AF:
0.0348
Gnomad NFE
AF:
0.00931
Gnomad OTH
AF:
0.0149
GnomAD3 exomes
AF:
0.0266
AC:
6684
AN:
251110
Hom.:
223
AF XY:
0.0292
AC XY:
3965
AN XY:
135708
show subpopulations
Gnomad AFR exome
AF:
0.00326
Gnomad AMR exome
AF:
0.0200
Gnomad ASJ exome
AF:
0.0283
Gnomad EAS exome
AF:
0.0584
Gnomad SAS exome
AF:
0.0867
Gnomad FIN exome
AF:
0.0332
Gnomad NFE exome
AF:
0.00918
Gnomad OTH exome
AF:
0.0274
GnomAD4 exome
AF:
0.0163
AC:
23780
AN:
1461820
Hom.:
584
Cov.:
31
AF XY:
0.0182
AC XY:
13271
AN XY:
727214
show subpopulations
Gnomad4 AFR exome
AF:
0.00347
Gnomad4 AMR exome
AF:
0.0185
Gnomad4 ASJ exome
AF:
0.0295
Gnomad4 EAS exome
AF:
0.0509
Gnomad4 SAS exome
AF:
0.0835
Gnomad4 FIN exome
AF:
0.0317
Gnomad4 NFE exome
AF:
0.00860
Gnomad4 OTH exome
AF:
0.0227
GnomAD4 genome
AF:
0.0144
AC:
2184
AN:
151902
Hom.:
46
Cov.:
31
AF XY:
0.0171
AC XY:
1271
AN XY:
74222
show subpopulations
Gnomad4 AFR
AF:
0.00285
Gnomad4 AMR
AF:
0.0108
Gnomad4 ASJ
AF:
0.0265
Gnomad4 EAS
AF:
0.0595
Gnomad4 SAS
AF:
0.0858
Gnomad4 FIN
AF:
0.0383
Gnomad4 NFE
AF:
0.00931
Gnomad4 OTH
AF:
0.0210
Alfa
AF:
0.0131
Hom.:
130
Bravo
AF:
0.0108
Asia WGS
AF:
0.113
AC:
394
AN:
3478
EpiCase
AF:
0.0106
EpiControl
AF:
0.00931

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

DNAH2-related disorder Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesDec 18, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.31
CADD
Benign
8.6
DANN
Benign
0.77

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00021
dbscSNV1_RF
Benign
0.0
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.

Other links and lift over

dbSNP: rs3744255; hg19: chr17-7637789; COSMIC: COSV99317935; API