7-21543279-G-C

Position:

• chr7-21543279-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001277115.2(DNAH11):​c.34G>C​(p.Asp12His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000072 in 1,389,352 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 Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.2e-7 (0 hom.)
• Consequence: DNAH11 NM_001277115.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.251

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 Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.10884106).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNAH11	NM_001277115.2	c.34G>C	p.Asp12His	missense_variant	Exon 1 of 82	ENST00000409508.8	NP_001264044.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DNAH11	ENST00000409508.8	c.34G>C	p.Asp12His	missense_variant	Exon 1 of 82	5	NM_001277115.2	ENSP00000475939.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 7.20e-7 AC: 1 AN: 1389352 Hom.: 0 Cov.: 30 AF XY: 0.00000146 AC XY: 1 AN XY: 683850

Gnomad4 AFR exome AF: 0.0000319

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Primary ciliary dyskinesia Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Sep 23, 2024

This sequence change replaces aspartic acid, which is acidic and polar, with histidine, which is basic and polar, at codon 12 of the DNAH11 protein (p.Asp12His). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with DNAH11-related conditions. Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt DNAH11 protein function with a negative predictive value of 95%. 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	Benign	0.12
BayesDel_addAF	Benign	-0.30	T
BayesDel_noAF	Benign	-0.66
CADD	Benign	15
DANN	Benign	0.96
DEOGEN2	Benign	0.029	.;.;T
Eigen	Benign	-0.45
Eigen_PC	Benign	-0.59
FATHMM_MKL	Benign	0.11	N
LIST_S2	Benign	0.60	T;T;T
M_CAP	Benign	0.0064	T
MetaRNN	Benign	0.11	T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.0	.;.;N
PrimateAI	Uncertain	0.51	T
PROVEAN	Benign	-0.88	.;N;.
REVEL	Benign	0.098
Sift	Benign	0.13	.;T;.
Polyphen		0.94	.;.;P
Vest4		0.055
MutPred		0.19		Gain of MoRF binding (P = 0.0376);Gain of MoRF binding (P = 0.0376);Gain of MoRF binding (P = 0.0376);
MVP		0.35
ClinPred		0.43	T
GERP RS		2.6
Varity_R		0.29
gMVP		0.26

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr7-21582897;