7-21744562-A-C

Variant names:

• chr7-21744562-A-C
• rs72657366
• NM_001277115.2:c.8279A>C

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001277115.2(DNAH11):​c.8279A>C​(p.Gln2760Pro) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,260 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q2760R) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: DNAH11 NM_001277115.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.78
• Publications: 0 publications found

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]

DNAH11 Gene-Disease associations (from GenCC):

• primary ciliary dyskinesia 7

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), ClinGen
• primary ciliary dyskinesia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001277115.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNAH11	NM_001277115.2	MANE Select	c.8279A>C	p.Gln2760Pro	missense	Exon 50 of 82	NP_001264044.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNAH11	ENST00000409508.8	TSL:5 MANE Select	c.8279A>C	p.Gln2760Pro	missense	Exon 50 of 82	ENSP00000475939.1
	DNAH11	ENST00000605912.1	TSL:3	c.475-308A>C		intron	N/A	ENSP00000476068.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461260 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 726838

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33448

American (AMR) AF: 0.00 AC: 0 AN: 44644

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26128

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86046

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53396

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111776

Other (OTH) AF: 0.00 AC: 0 AN: 60358

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.27
BayesDel_addAF	Benign	-0.027	T
BayesDel_noAF	Benign	-0.28
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Benign	0.33	T
Eigen	Benign	0.11
Eigen_PC	Uncertain	0.26
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Benign	0.53	T
M_CAP	Benign	0.013	T
MetaRNN	Uncertain	0.69	D
MetaSVM	Benign	-0.95	T
PhyloP100		3.8
PrimateAI	Benign	0.28	T
PROVEAN	Uncertain	-2.6	D
REVEL	Benign	0.16
Sift	Benign	0.082	T
Vest4		0.67
MutPred		0.57		Loss of helix (P = 0.1299)
MVP		0.47
ClinPred		0.84	D
GERP RS		5.9
Varity_R		0.43
gMVP		0.66
Mutation Taster		=80/20	polymorphism

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

Other links and lift over

dbSNP: rs72657366; hg19: chr7-21784180;