NM_001277115.2:c.1A>C

Variant names:

• chr7-21543246-A-C
• NM_001277115.2:c.1A>C

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PVS1_Supporting PM2 PP5_Moderate

The NM_001277115.2(DNAH11):​c.1A>C​(p.Met1?) variant causes a initiator codon change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: DNAH11 NM_001277115.2 initiator_codon
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 0.102

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 5 ACMG points.

• PVS1: Start lost variant, no pathogenic variants between lost start and next in-frame start position. Next in-frame start position is after 68 codons. Genomic position: 21543447. Lost 0.015 part of the original CDS.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 7-21543246-A-C is Pathogenic according to our data. Variant chr7-21543246-A-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 2817469.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNAH11	NM_001277115.2	c.1A>C	p.Met1?	initiator_codon_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.1A>C	p.Met1?	initiator_codon_variant	Exon 1 of 82	5	NM_001277115.2	ENSP00000475939.1
DNAH11	ENST00000607050.1	n.-200A>C		upstream_gene_variant		3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 33

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Primary ciliary dyskinesia Pathogenic:1

Dec 31, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change affects the initiator methionine of the DNAH11 mRNA. The next in-frame methionine is located at codon 68. This variant is not present in population databases (gnomAD no frequency). Disruption of the initiator codon has been observed in individual(s) with clinical features of primary ciliary dyskinesia (Invitae). In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.043	T
BayesDel_noAF	Benign	-0.30
CADD	Benign	16
DANN	Benign	0.93
DEOGEN2	Benign	0.028	.;.;T
Eigen	Benign	-0.66
Eigen_PC	Benign	-0.62
FATHMM_MKL	Benign	0.19	N
LIST_S2	Uncertain	0.90	D;D;D
M_CAP	Benign	0.061	D
MetaRNN	Uncertain	0.43	T;T;T
MetaSVM	Benign	-1.1	T
PROVEAN	Benign	-0.39	.;N;.
REVEL	Uncertain	0.31
Sift	Pathogenic	0.0	.;D;.
Polyphen		0.0	.;.;B
Vest4		0.51
MutPred		0.66		Gain of stability (P = 0.0061);Gain of stability (P = 0.0061);Gain of stability (P = 0.0061);
MVP		0.17
ClinPred		0.52	D
GERP RS		2.3
Varity_R		0.32
gMVP		0.18

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: chr7-21582864;