Genetic Variant DPY19L2:p.Ala487Val (chr12-63597810-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_173812.5(DPY19L2):c.1460C>T(p.Ala487Val) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000193 in 1,603,140 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

DPY19L2
NM_173812.5 missense, splice_region

Scores

Splicing: ADA: 0.002825

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.31

Publications

2 publications found

Variant links:

Genes affected

DPY19L2 (HGNC:19414): (dpy-19 like 2) The protein encoded by this gene belongs to the dpy-19 family. It is highly expressed in testis, and is required for sperm head elongation and acrosome formation during spermatogenesis. Mutations in this gene are associated with an infertility disorder, spermatogenic failure type 9 (SPGF9). [provided by RefSeq, Dec 2011]

DPY19L2 Gene-Disease associations (from GenCC):

spermatogenic failure 9
Inheritance: AR Classification: STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
male infertility due to globozoospermia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

DPY19L2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.13161567).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_173812.5. 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
	DPY19L2	NM_173812.5	MANE Select	c.1460C>T	p.Ala487Val	missense splice_region	Exon 14 of 22	NP_776173.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DPY19L2	ENST00000324472.9	TSL:1 MANE Select	c.1460C>T	p.Ala487Val	missense splice_region	Exon 14 of 22	ENSP00000315988.4	Q6NUT2-1
DPY19L2	ENST00000306389.7	TSL:1	n.*851C>T		splice_region non_coding_transcript_exon	Exon 12 of 14	ENSP00000445878.1	F5H0W1
DPY19L2	ENST00000306389.7	TSL:1	n.*851C>T		3_prime_UTR	Exon 12 of 14	ENSP00000445878.1	F5H0W1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

151880

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

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

GnomAD2 exomes

AF:

0.0000122

AC:

AN:

245226

AF XY:

0.0000151

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000298

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000180

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000186

AC:

AN:

1451260

Hom.:

Cov.:

AF XY:

0.0000208

AC XY:

AN XY:

722070

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

32964

American (AMR)

AF:

0.0000228

AC:

AN:

43830

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25932

East Asian (EAS)

AF:

0.00

AC:

AN:

39260

South Asian (SAS)

AF:

0.00

AC:

AN:

84684

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53286

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5242

European-Non Finnish (NFE)

AF:

0.0000235

AC:

AN:

1106146

Other (OTH)

AF:

0.00

AC:

AN:

59916

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.00000000064589), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.384

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:

0.0000263

AC:

AN:

151880

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74192

show subpopulations

African (AFR)

AF:

0.0000242

AC:

AN:

41356

American (AMR)

AF:

0.00

AC:

AN:

15240

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3464

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10550

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

67952

Other (OTH)

AF:

0.00

AC:

AN:

2086

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

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:

0.00

Hom.:

Bravo

AF:

0.0000302

ExAC

AF:

0.00000824

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.38

CADD

Benign

(source)

DANN

Uncertain

0.97

DEOGEN2

Benign

0.0048

Eigen

Benign

-0.33

Eigen_PC

Benign

-0.30

FATHMM_MKL

Benign

0.44

LIST_S2

Benign

0.24

M_CAP

Benign

0.0089

MetaRNN

Benign

0.13

MetaSVM

Benign

-1.1

PhyloP100

2.3

PrimateAI

Benign

0.41

PROVEAN

Benign

-1.3

REVEL

Benign

0.050

Sift

Benign

0.097

Sift4G

Benign

0.14

Polyphen

0.064

Vest4

0.18

MVP

0.20

MPC

0.19

ClinPred

0.26

GERP RS

-0.30

Varity_R

0.093

gMVP

0.43

Mutation Taster

=82/18

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.0028

dbscSNV1_RF

Benign

0.094

SpliceAI score (max)

0.070

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