6-38734588-G-T

Position:

• chr6-38734588-G-T

Variant summary

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

The NM_001206927.2(DNAH8):​c.725G>T​(p.Arg242Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,208 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 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. R242H) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: DNAH8 NM_001206927.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0670

Genes affected

DNAH8 (HGNC:2952): (dynein axonemal heavy chain 8) The protein encoded by this gene is a heavy chain of an axonemal dynein involved in sperm and respiratory cilia motility. Axonemal dyneins generate force through hydrolysis of ATP and binding to microtubules. [provided by RefSeq, Jan 2012]

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=0.17656684).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
DNAH8	NM_001206927.2	c.725G>T	p.Arg242Leu	missense_variant	5/93	ENST00000327475.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DNAH8	ENST00000327475.11	c.725G>T	p.Arg242Leu	missense_variant	5/93	5	NM_001206927.2	P2
DNAH8	ENST00000359357.7	c.74G>T	p.Arg25Leu	missense_variant	3/91	2		A2
DNAH8	ENST00000449981.6	c.725G>T	p.Arg242Leu	missense_variant	4/82	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000796 AC: 2 AN: 251274 Hom.: 0 AF XY: 0.00000736 AC XY: 1 AN XY: 135790

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000654

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461208 Hom.: 0 Cov.: 32 AF XY: 0.00000275 AC XY: 2 AN XY: 726914

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000232

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 32

ExAC AF: 0.0000165 AC: 2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.20
BayesDel_addAF	Benign	-0.27	T
BayesDel_noAF	Benign	-0.45
CADD	Benign	9.0
DANN	Benign	0.96
DEOGEN2	Benign	0.028	T;T;T
Eigen	Benign	-0.81
Eigen_PC	Benign	-0.82
FATHMM_MKL	Benign	0.12	N
LIST_S2	Benign	0.20	T;T;T
M_CAP	Benign	0.014	T
MetaRNN	Benign	0.18	T;T;T
MetaSVM	Benign	-0.98	T
MutationTaster	Benign	1.0	N;N;N
PrimateAI	Benign	0.23	T
REVEL	Benign	0.10
Polyphen		0.022	.;.;B
Vest4		0.46
MutPred		0.59		.;.;Gain of loop (P = 0.069);
MVP		0.55
MPC		0.15
ClinPred		0.099	T
GERP RS		-1.7
Varity_R		0.089
gMVP		0.45

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs142863013; hg19: chr6-38702364;