dbSNP rs371250738: DNAH8:p.Ala291Asp (chr6-38737176-C-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001206927.2(DNAH8):c.872C>A(p.Ala291Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000547 in 1,572,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A291V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000056 ( 0 hom. )

Consequence

DNAH8
NM_001206927.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 2.47

Publications

5 publications found

Variant links:

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]

DNAH8 Gene-Disease associations (from GenCC):

spermatogenic failure 46
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen
spermatogenic failure 5
Inheritance: AR Classification: MODERATE Submitted by: Franklin by Genoox
primary ciliary dyskinesia
Inheritance: AR Classification: NO_KNOWN Submitted by: ClinGen

DNAH8 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.083690256).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001206927.2. 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
	DNAH8	NM_001206927.2	MANE Select	c.872C>A	p.Ala291Asp	missense	Exon 6 of 93	NP_001193856.1
	DNAH8	NM_001371.4		c.221C>A	p.Ala74Asp	missense	Exon 5 of 92	NP_001362.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
DNAH8	ENST00000327475.11	TSL:5 MANE Select	c.872C>A	p.Ala291Asp	missense	Exon 6 of 93	ENSP00000333363.7
DNAH8	ENST00000359357.7	TSL:2	c.221C>A	p.Ala74Asp	missense	Exon 4 of 91	ENSP00000352312.3
DNAH8	ENST00000449981.6	TSL:5	c.872C>A	p.Ala291Asp	missense	Exon 5 of 82	ENSP00000415331.2

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152144

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000943

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000106

AC:

AN:

226908

AF XY:

0.0000970

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000479

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000103

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000563

AC:

AN:

1420742

Hom.:

Cov.:

AF XY:

0.0000638

AC XY:

AN XY:

705788

show subpopulations

African (AFR)

AF:

0.0000314

AC:

AN:

31808

American (AMR)

AF:

0.000344

AC:

AN:

37812

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25212

East Asian (EAS)

AF:

0.00

AC:

AN:

37534

South Asian (SAS)

AF:

0.00

AC:

AN:

78272

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52542

Middle Eastern (MID)

AF:

0.000354

AC:

AN:

5654

European-Non Finnish (NFE)

AF:

0.0000503

AC:

AN:

1093192

Other (OTH)

AF:

0.000153

AC:

AN:

58716

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.460

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152144

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74312

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41432

American (AMR)

AF:

0.000131

AC:

AN:

15276

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.0000943

AC:

AN:

10600

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68020

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.558

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000564

Hom.:

Bravo

AF:

0.0000793

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000988

AC:

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

not specified (1)

Primary ciliary dyskinesia (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.22

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.44

CADD

Benign

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.0019

Eigen

Benign

-0.15

Eigen_PC

Benign

0.048

FATHMM_MKL

Uncertain

0.84

LIST_S2

Benign

0.70

M_CAP

Benign

0.0073

MetaRNN

Benign

0.084

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.8

PhyloP100

2.5

PrimateAI

Benign

0.43

PROVEAN

Benign

-0.18

REVEL

Benign

0.072

Sift

Benign

0.55

Polyphen

0.0

Vest4

0.27

MVP

0.69

MPC

0.19

ClinPred

0.059

GERP RS

5.2

Varity_R

0.14

gMVP

0.55

Mutation Taster

=81/19

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over