chr6-38734588-G-A

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_001206927.2(DNAH8):​c.725G>A​(p.Arg242His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000294 in 1,613,482 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R242C) has been classified as Benign.

Frequency

Genomes: 𝑓 0.00028 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00030 ( 1 hom. )

Consequence

DNAH8
NM_001206927.2 missense

Scores

1
17

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 0.0670
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.009264529).
BP6
Variant 6-38734588-G-A is Benign according to our data. Variant chr6-38734588-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 238655.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000276 (42/152274) while in subpopulation EAS AF= 0.00308 (16/5188). AF 95% confidence interval is 0.00193. There are 0 homozygotes in gnomad4. There are 21 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DNAH8NM_001206927.2 linkuse as main transcriptc.725G>A p.Arg242His missense_variant 5/93 ENST00000327475.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DNAH8ENST00000327475.11 linkuse as main transcriptc.725G>A p.Arg242His missense_variant 5/935 NM_001206927.2 P2
DNAH8ENST00000359357.7 linkuse as main transcriptc.74G>A p.Arg25His missense_variant 3/912 A2Q96JB1-1
DNAH8ENST00000449981.6 linkuse as main transcriptc.725G>A p.Arg242His missense_variant 4/825

Frequencies

GnomAD3 genomes
AF:
0.000269
AC:
41
AN:
152156
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00308
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000176
Gnomad OTH
AF:
0.000955
GnomAD3 exomes
AF:
0.000438
AC:
110
AN:
251274
Hom.:
0
AF XY:
0.000427
AC XY:
58
AN XY:
135790
show subpopulations
Gnomad AFR exome
AF:
0.000554
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00370
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000246
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.000296
AC:
432
AN:
1461208
Hom.:
1
Cov.:
32
AF XY:
0.000279
AC XY:
203
AN XY:
726914
show subpopulations
Gnomad4 AFR exome
AF:
0.000389
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00255
Gnomad4 SAS exome
AF:
0.0000928
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.000227
Gnomad4 OTH exome
AF:
0.000895
GnomAD4 genome
AF:
0.000276
AC:
42
AN:
152274
Hom.:
0
Cov.:
32
AF XY:
0.000282
AC XY:
21
AN XY:
74462
show subpopulations
Gnomad4 AFR
AF:
0.000265
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00308
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000176
Gnomad4 OTH
AF:
0.000945
Alfa
AF:
0.000399
Hom.:
0
Bravo
AF:
0.000378
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000778
AC:
3
ESP6500AA
AF:
0.000908
AC:
4
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000461
AC:
56
Asia WGS
AF:
0.00375
AC:
13
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.000237

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxApr 17, 2023In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
Primary ciliary dyskinesia Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 27, 2023- -
Spermatogenic failure 46 Benign:1
Likely benign, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsJan 12, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.089
BayesDel_addAF
Benign
-0.53
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
13
DANN
Uncertain
0.98
DEOGEN2
Benign
0.012
T;T;T
Eigen
Benign
-0.56
Eigen_PC
Benign
-0.64
FATHMM_MKL
Benign
0.037
N
LIST_S2
Benign
0.25
T;T;T
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.0093
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.74
.;.;N
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.22
T
PROVEAN
Benign
-0.63
.;N;N
REVEL
Benign
0.095
Sift
Benign
0.13
.;T;T
Polyphen
0.66
.;.;P
Vest4
0.18
MVP
0.64
MPC
0.15
ClinPred
0.0098
T
GERP RS
-1.7
Varity_R
0.047
gMVP
0.26

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.

Other links and lift over

dbSNP: rs142863013; hg19: chr6-38702364; COSMIC: COSV59458773; COSMIC: COSV59458773; API