7-21901049-G-T

Variant names:

• chr7-21901049-G-T
• rs138945257
• NM_001277115.2:c.13346G>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001277115.2(DNAH11):​c.13346G>T​(p.Arg4449Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,460,838 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. 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. R4449H) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000034 (0 hom.)
• Consequence: DNAH11 NM_001277115.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.477
• 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]

CDCA7L (HGNC:30777): (cell division cycle associated 7 like) Acts upstream of or within positive regulation of cell population proliferation. Located in cytosol; fibrillar center; and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.17431495).

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNAH11	NM_001277115.2	MANE Select	c.13346G>T	p.Arg4449Leu	missense	Exon 82 of 82	NP_001264044.1	Q96DT5
	CDCA7L	NM_018719.5	MANE Select	c.*1273C>A		3_prime_UTR	Exon 10 of 10	NP_061189.2
	CDCA7L	NM_001127370.3		c.*1273C>A		3_prime_UTR	Exon 11 of 11	NP_001120842.1	Q96GN5-4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNAH11	ENST00000409508.8	TSL:5 MANE Select	c.13346G>T	p.Arg4449Leu	missense	Exon 82 of 82	ENSP00000475939.1	Q96DT5
	CDCA7L	ENST00000406877.8	TSL:1 MANE Select	c.*1273C>A		3_prime_UTR	Exon 10 of 10	ENSP00000383986.3	Q96GN5-1
	CDCA7L	ENST00000934293.1		c.*1273C>A		3_prime_UTR	Exon 10 of 10	ENSP00000604352.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000342 AC: 5 AN: 1460838 Hom.: 0 Cov.: 33 AF XY: 0.00000275 AC XY: 2 AN XY: 726648

African (AFR) AF: 0.00 AC: 0 AN: 33442

American (AMR) AF: 0.00 AC: 0 AN: 44592

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26080

East Asian (EAS) AF: 0.00 AC: 0 AN: 39682

South Asian (SAS) AF: 0.00 AC: 0 AN: 86102

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53380

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 0.00000450 AC: 5 AN: 1111468

Other (OTH) AF: 0.00 AC: 0 AN: 60330

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Benign	-0.17	T
BayesDel_noAF	Benign	-0.48
CADD	Benign	14
DANN	Benign	0.97
DEOGEN2	Benign	0.23	T
Eigen	Benign	-0.60
Eigen_PC	Benign	-0.59
FATHMM_MKL	Benign	0.45	N
LIST_S2	Uncertain	0.88	D
M_CAP	Benign	0.015	T
MetaRNN	Benign	0.17	T
MetaSVM	Benign	-0.91	T
PhyloP100		0.48
PrimateAI	Benign	0.24	T
PROVEAN	Pathogenic	-5.2	D
REVEL	Benign	0.14
Sift	Benign	0.13	T
Vest4		0.52
MutPred		0.61		Loss of loop (P = 0.1242)
MVP		0.15
ClinPred		0.80	D
GERP RS		1.5
Varity_R		0.13
gMVP		0.32
Mutation Taster		=87/13	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: rs138945257; hg19: chr7-21940667; COSMIC: COSV60971779; COSMIC: COSV60971779;