chr7-21787474-A-G
Variant summary
Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate
The NM_001277115.2(DNAH11):c.9815A>G(p.Asn3272Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,502 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N3272K) has been classified as Likely benign.
Frequency
Consequence
NM_001277115.2 missense
Scores
Clinical Significance
Conservation
Publications
- primary ciliary dyskinesia 7Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), ClinGen
- primary ciliary dyskinesiaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Genome browser will be placed here
ACMG classification
Our verdict: Uncertain_significance. The variant received 4 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes  
GnomAD4 exome  AF:  6.84e-7  AC: 1AN: 1461502Hom.:  0  Cov.: 30 AF XY:  0.00000138  AC XY: 1AN XY: 727016 show subpopulations 
GnomAD4 genome  
ClinVar
Submissions by phenotype
DNAH11-related disorder    Uncertain:1 
The DNAH11 c.9815A>G variant is predicted to result in the amino acid substitution p.Asn3272Ser. This variant has been reported together with second DNAH11 variant in an individual with suspected Primary Ciliary Dyskinesia (Table 1, Staar et al. 2023. PubMed ID: 37998386). This variant has not bee reported in a large population database (http://gnomad.broadinstitute.org), indicating this variant is rare. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Primary ciliary dyskinesia    Uncertain:1 
This variant is not present in population databases (ExAC no frequency). This sequence change replaces asparagine with serine at codon 3272 of the DNAH11 protein (p.Asn3272Ser). The asparagine residue is moderately conserved and there is a small physicochemical difference between asparagine and serine. This variant has not been reported in the literature in individuals with DNAH11-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies. 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: 
Splicing
 Find out detailed SpliceAI scores and Pangolin per-transcript scores at