7-21543264-G-A

Position:

• chr7-21543264-G-A

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP6

The NM_001277115.2(DNAH11):​c.19G>A​(p.Ala7Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000433 in 1,386,922 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000043 (0 hom.)
• Consequence: DNAH11 NM_001277115.2 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:1
• Conservation: PhyloP100: 0.974

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]

ACMG classification

Verdict is Likely_benign. Variant got -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.053484023).
• BP6: Variant 7-21543264-G-A is Benign according to our data. Variant chr7-21543264-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 410836.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DNAH11	NM_001277115.2	c.19G>A	p.Ala7Thr	missense_variant	1/82	ENST00000409508.8	NP_001264044.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DNAH11	ENST00000409508.8	c.19G>A	p.Ala7Thr	missense_variant	1/82	5	NM_001277115.2	ENSP00000475939.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.00000691 AC: 1 AN: 144742 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 77812

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 SAS exome AF: 0.0000445

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000433 AC: 6 AN: 1386922 Hom.: 0 Cov.: 30 AF XY: 0.00000439 AC XY: 3 AN XY: 682710

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000254

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000373

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ExAC AF: 0.0000330 AC: 1

Asia WGS AF: 0.000289 AC: 1 AN: 3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:1

Revision: criteria provided, conflicting classifications

Submissions by phenotype

Primary ciliary dyskinesia Uncertain:1 Benign:1

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 25, 2024	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Ambry Genetics	Oct 07, 2024	The c.19G>A (p.A7T) alteration is located in exon 1 (coding exon 1) of the DNAH11 gene. This alteration results from a G to A substitution at nucleotide position 19, causing the alanine (A) at amino acid position 7 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Benign	-0.32	T
BayesDel_noAF	Benign	-0.69
CADD	Benign	11
DANN	Benign	0.96
DEOGEN2	Benign	0.029	.;.;T
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.021	N
LIST_S2	Benign	0.53	T;T;T
M_CAP	Benign	0.0057	T
MetaRNN	Benign	0.053	T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.34	.;.;N
PrimateAI	Uncertain	0.54	T
PROVEAN	Benign	-0.26	.;N;.
REVEL	Benign	0.13
Sift	Benign	0.33	.;T;.
Polyphen		0.0	.;.;B
Vest4		0.061
MutPred		0.27		Gain of glycosylation at A7 (P = 0.0234);Gain of glycosylation at A7 (P = 0.0234);Gain of glycosylation at A7 (P = 0.0234);
MVP		0.061
ClinPred		0.073	T
GERP RS		0.15
Varity_R		0.063
gMVP		0.35

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

Other links and lift over

dbSNP: rs755966311; hg19: chr7-21582882;