rs138341550

Positions:

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_015512.5(DNAH1):c.6203C>G(p.Thr2068Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000075 in 1,613,892 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000079 ( 0 hom. )

Consequence

DNAH1
NM_015512.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.50

Variant links:

Genes affected

DNAH1 (HGNC:2940): (dynein axonemal heavy chain 1) This gene encodes an inner dynein arm heavy chain that provides structural support between the radial spokes and the outer doublet of the sperm tail. Naturally occurring mutations in this gene are associated with primary ciliary dyskinesia and multiple morphological anomalies of the flagella that result in asthenozoospermia and male infertility. Mice with a homozygous knockout of the orthologous gene are viable but have reduced sperm motility and are infertile. [provided by RefSeq, Feb 2017]

DNAH1 links:

DNAH1 (HGNC:):

DNAH1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

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=0.22106615).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DNAH1	NM_015512.5 linkuse as main transcript	c.6203C>G	p.Thr2068Ser	missense_variant	39/78	ENST00000420323.7	NP_056327.4	Q9P2D7-4A0A140VJI6
DNAH1	XM_017006129.2 linkuse as main transcript	c.6272C>G	p.Thr2091Ser	missense_variant	41/80		XP_016861618.1
DNAH1	XM_017006130.2 linkuse as main transcript	c.6203C>G	p.Thr2068Ser	missense_variant	40/79		XP_016861619.1	Q9P2D7-4A0A140VJI6
DNAH1	XM_017006131.2 linkuse as main transcript	c.6272C>G	p.Thr2091Ser	missense_variant	41/79		XP_016861620.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DNAH1	ENST00000420323.7 linkuse as main transcript	c.6203C>G	p.Thr2068Ser	missense_variant	39/78	1	NM_015512.5	ENSP00000401514.2		Q9P2D7-4
DNAH1	ENST00000486752.5 linkuse as main transcript	n.6464C>G		non_coding_transcript_exon_variant	39/77	2

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152198

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

249212

Hom.:

AF XY:

0.0000222

AC XY:

AN XY:

135222

show subpopulations

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000266

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000794

AC:

116

AN:

1461694

Hom.:

Cov.:

AF XY:

0.0000633

AC XY:

AN XY:

727126

show subpopulations

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000953

Gnomad4 OTH exome

AF:

0.000166

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152198

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74344

show subpopulations

Gnomad4 AFR

AF:

0.0000483

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000847

Hom.:

Bravo

AF:

0.0000416

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000235

AC:

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 29, 2024

The c.6203C>G (p.T2068S) alteration is located in exon 39 (coding exon 38) of the DNAH1 gene. This alteration results from a C to G substitution at nucleotide position 6203, causing the threonine (T) at amino acid position 2068 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Spermatogenic failure 18;C4539798:Ciliary dyskinesia, primary, 37

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Apr 17, 2022

This sequence change replaces threonine, which is neutral and polar, with serine, which is neutral and polar, at codon 2068 of the DNAH1 protein (p.Thr2068Ser). This variant is present in population databases (rs138341550, gnomAD 0.004%). This variant has not been reported in the literature in individuals affected with DNAH1-related conditions. ClinVar contains an entry for this variant (Variation ID: 544615). 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. 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: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.20

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.50

CADD

Benign

DANN

Benign

0.93

Eigen

Benign

-0.46

Eigen_PC

Benign

-0.40

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.73

M_CAP

Benign

0.0069

MetaRNN

Benign

0.22

MetaSVM

Benign

-1.0

PrimateAI

Benign

0.39

PROVEAN

Benign

-1.9

REVEL

Benign

0.089

Sift

Uncertain

0.021

Sift4G

Uncertain

0.017

Vest4

0.47

MutPred

0.65

Loss of helix (P = 0.0444);

MVP

0.23

MPC

0.13

ClinPred

0.21

GERP RS

0.57

gMVP

0.48

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over