rs755225109

Variant names:

• chr17-7719796-G-C
• rs755225109
• NM_020877.5:c.62G>C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_020877.5(DNAH2):​c.62G>C​(p.Trp21Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,658 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: DNAH2 NM_020877.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.325
• Publications: 0 publications found

Genes affected

DNAH2 (HGNC:2948): (dynein axonemal heavy chain 2) Dyneins are microtubule-associated motor protein complexes composed of several heavy, light, and intermediate chains. The axonemal dyneins, found in cilia and flagella, are components of the outer and inner dynein arms attached to the peripheral microtubule doublets. DNAH2 is an axonemal inner arm dynein heavy chain (Chapelin et al., 1997 [PubMed 9256245]).[supplied by OMIM, Mar 2008]

DNAH2 Gene-Disease associations (from GenCC):

• spermatogenic failure 45

  Inheritance: AR Classification: MODERATE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics

ACMG classification

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

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.05727461).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020877.5. 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
	DNAH2	NM_020877.5	MANE Select	c.62G>C	p.Trp21Ser	missense	Exon 2 of 86	NP_065928.2	Q9P225-1
	DNAH2	NM_001303270.2		c.62G>C	p.Trp21Ser	missense	Exon 2 of 14	NP_001290199.1	Q9P225-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNAH2	ENST00000572933.6	TSL:2 MANE Select	c.62G>C	p.Trp21Ser	missense	Exon 2 of 86	ENSP00000458355.1	Q9P225-1
	DNAH2	ENST00000570791.5	TSL:1	c.62G>C	p.Trp21Ser	missense	Exon 2 of 14	ENSP00000460245.1	Q9P225-3
	DNAH2	ENST00000389173.6	TSL:2	c.62G>C	p.Trp21Ser	missense	Exon 1 of 85	ENSP00000373825.2	Q9P225-1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD2 exomes AF: 0.00000400 AC: 1 AN: 249924 AF XY: 0.00000738

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 FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461658 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727122

African (AFR) AF: 0.00 AC: 0 AN: 33472

American (AMR) AF: 0.00 AC: 0 AN: 44700

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86242

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53394

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5706

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111932

Other (OTH) AF: 0.00 AC: 0 AN: 60382

GnomAD4 genome Cov.: 31

ExAC AF: 0.00000824 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.057
BayesDel_addAF	Benign	-0.38	T
BayesDel_noAF	Benign	-0.68
CADD	Benign	0.23
DANN	Benign	0.43
DEOGEN2	Benign	0.012	T
Eigen	Benign	-1.5
Eigen_PC	Benign	-1.6
FATHMM_MKL	Benign	0.018	N
LIST_S2	Benign	0.25	T
M_CAP	Benign	0.0049	T
MetaRNN	Benign	0.057	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.0	N
PhyloP100		-0.33
PrimateAI	Benign	0.33	T
PROVEAN	Benign	0.77	N
REVEL	Benign	0.0070
Sift	Benign	0.27	T
Sift4G	Benign	0.19	T
Polyphen		0.0	B
Vest4		0.23
MutPred		0.33		Gain of relative solvent accessibility (P = 0.0023)
MVP		0.088
MPC		0.29
ClinPred		0.054	T
GERP RS		-1.8
PromoterAI		0.017	Neutral
Varity_R		0.052
gMVP		0.30

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: rs755225109; hg19: chr17-7623114;