7-21606542-C-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_ModerateBP6BP7BS1

The NM_001277115.2(DNAH11):​c.3765C>T​(p.Asp1255Asp) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000202 in 1,603,680 control chromosomes in the GnomAD database, including 2 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00087 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00013 ( 1 hom. )

Consequence

DNAH11
NM_001277115.2 splice_region, synonymous

Scores

2
Splicing: ADA: 0.001138
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: 0.953
Variant links:
Genes affected
DNAH11 (HGNC:2942): (dynein axonemal heavy chain 11) This gene encodes a ciliary outer dynein arm protein and is a member of the dynein heavy chain family. It is a microtubule-dependent motor ATPase and has been reported to be involved in the movement of respiratory cilia. Mutations in this gene have been implicated in causing Kartagener Syndrome (a combination of situs inversus totalis and Primary Ciliary Dyskinesia (PCD), also called Immotile Cilia Syndrome 1 (ICS1)) and male sterility. [provided by RefSeq, Mar 2013]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.4).
BP6
Variant 7-21606542-C-T is Benign according to our data. Variant chr7-21606542-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 257885.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=4, Uncertain_significance=1}.
BP7
Synonymous conserved (PhyloP=0.953 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4_exome allele frequency = 0.000132 (192/1452628) while in subpopulation AFR AF= 0.0034 (113/33190). AF 95% confidence interval is 0.00289. There are 1 homozygotes in gnomad4_exome. There are 87 alleles in male gnomad4_exome subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DNAH11NM_001277115.2 linkc.3765C>T p.Asp1255Asp splice_region_variant, synonymous_variant Exon 19 of 82 ENST00000409508.8 NP_001264044.1 Q96DT5Q96NT7H9NAJ8H9NAJ7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DNAH11ENST00000409508.8 linkc.3765C>T p.Asp1255Asp splice_region_variant, synonymous_variant Exon 19 of 82 5 NM_001277115.2 ENSP00000475939.1 Q96DT5

Frequencies

GnomAD3 genomes
AF:
0.000848
AC:
128
AN:
150970
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00270
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000462
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000209
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000737
Gnomad OTH
AF:
0.00194
GnomAD3 exomes
AF:
0.000298
AC:
71
AN:
238022
Hom.:
0
AF XY:
0.000233
AC XY:
30
AN XY:
128688
show subpopulations
Gnomad AFR exome
AF:
0.00336
Gnomad AMR exome
AF:
0.000300
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000230
Gnomad SAS exome
AF:
0.000215
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000922
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000132
AC:
192
AN:
1452628
Hom.:
1
Cov.:
32
AF XY:
0.000121
AC XY:
87
AN XY:
721622
show subpopulations
Gnomad4 AFR exome
AF:
0.00340
Gnomad4 AMR exome
AF:
0.000275
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000101
Gnomad4 SAS exome
AF:
0.000204
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000126
Gnomad4 OTH exome
AF:
0.000516
GnomAD4 genome
AF:
0.000874
AC:
132
AN:
151052
Hom.:
1
Cov.:
32
AF XY:
0.000896
AC XY:
66
AN XY:
73662
show subpopulations
Gnomad4 AFR
AF:
0.00279
Gnomad4 AMR
AF:
0.000461
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000209
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000737
Gnomad4 OTH
AF:
0.00192
Alfa
AF:
0.000137
Hom.:
0
Bravo
AF:
0.00118
Asia WGS
AF:
0.00202
AC:
7
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:4
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Primary ciliary dyskinesia Benign:2
Nov 04, 2022
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Oct 31, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Uncertain:1
Jan 17, 2020
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In-silico analysis, which includes splice predictors and evolutionary conservation, is inconclusive as to whether the variant alters gene splicing. In the absence of RNA/functional studies, the actual effect of this sequence change is unknown.; Has not been previously published as pathogenic or benign to our knowledge -

not specified Benign:1
-
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Primary ciliary dyskinesia 7 Benign:1
Jun 10, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.40
CADD
Benign
13
DANN
Benign
0.76

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0011
dbscSNV1_RF
Benign
0.19
SpliceAI score (max)
0.020
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: rs190062687; hg19: chr7-21646160; COSMIC: COSV60954081; API