Genetic Variant NM_001366673.1:c.1733T>C (chr7-34940284-A-G) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_001366673.1(DPY19L1):c.1733T>C(p.Val578Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000118 in 1,611,412 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

DPY19L1
NM_001366673.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.57

Variant links:

Genes affected

DPY19L1 (HGNC:22205): (dpy-19 like C-mannosyltransferase 1) Predicted to enable mannosyltransferase activity. Predicted to be involved in protein C-linked glycosylation via 2'-alpha-mannosyl-L-tryptophan. Located in membrane. [provided by Alliance of Genome Resources, Apr 2022]

DPY19L1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.79

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DPY19L1	NM_001366673.1 link	c.1733T>C	p.Val578Ala	missense_variant	Exon 19 of 22	ENST00000638088.2	NP_001353602.1
DPY19L1	NM_015283.2 link	c.1514T>C	p.Val505Ala	missense_variant	Exon 19 of 22		NP_056098.1	Q2PZI1-1
DPY19L1	XM_011515246.4 link	c.1646T>C	p.Val549Ala	missense_variant	Exon 18 of 21		XP_011513548.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DPY19L1	ENST00000638088.2 link	c.1733T>C	p.Val578Ala	missense_variant	Exon 19 of 22	5	NM_001366673.1	ENSP00000490722.1		A0A1B0GW05

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152166

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000806

AC:

AN:

248038

Hom.:

AF XY:

0.00000743

AC XY:

AN XY:

134566

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000292

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:

0.00000886

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000116

AC:

AN:

1459246

Hom.:

Cov.:

AF XY:

0.0000193

AC XY:

AN XY:

725868

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

0.0000135

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152166

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74342

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000371

Hom.:

Bravo

AF:

0.00000756

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 29, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1514T>C (p.V505A) alteration is located in exon 19 (coding exon 19) of the DPY19L1 gene. This alteration results from a T to C substitution at nucleotide position 1514, causing the valine (V) at amino acid position 505 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.30

BayesDel_addAF

Uncertain

0.094

BayesDel_noAF

Uncertain

-0.020

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.10

.;T

Eigen

Uncertain

0.50

Eigen_PC

Uncertain

0.48

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.76

T;T

M_CAP

Benign

0.028

MetaRNN

Pathogenic

0.79

D;D

MetaSVM

Benign

-0.63

MutationAssessor

Uncertain

2.2

.;M

PrimateAI

Uncertain

0.65

PROVEAN

Uncertain

-3.3

.;D

REVEL

Benign

0.29

Sift

Uncertain

0.0040

.;D

Sift4G

Uncertain

0.0040

.;D

Polyphen

0.86

.;P

Vest4

0.32

MutPred

0.68

.;Gain of helix (P = 0.132);

MVP

0.69

MPC

0.55

ClinPred

0.92

GERP RS

5.1

Varity_R

0.41

gMVP

0.77

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