19-32432805-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001172774.2(DPY19L3):​c.327A>T​(p.Gln109His) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000205 in 1,461,296 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/25 in silico tools predict a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

DPY19L3
NM_001172774.2 missense, splice_region

Scores

1
3
15
Splicing: ADA: 0.9472
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.19
Variant links:
Genes affected
DPY19L3 (HGNC:27120): (dpy-19 like C-mannosyltransferase 3) Predicted to enable mannosyltransferase activity. Predicted to be involved in protein C-linked glycosylation via 2'-alpha-mannosyl-L-tryptophan. Predicted to be integral component of membrane. Predicted to be active in nuclear inner membrane. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.4119911).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DPY19L3NM_001172774.2 linkuse as main transcriptc.327A>T p.Gln109His missense_variant, splice_region_variant 4/19 ENST00000392250.7 NP_001166245.1 Q6ZPD9-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DPY19L3ENST00000392250.7 linkuse as main transcriptc.327A>T p.Gln109His missense_variant, splice_region_variant 4/195 NM_001172774.2 ENSP00000376081.2 Q6ZPD9-1
DPY19L3ENST00000586427.1 linkuse as main transcriptc.327A>T p.Gln109His missense_variant, splice_region_variant 4/51 ENSP00000466062.1 K7ELG1
DPY19L3ENST00000342179.9 linkuse as main transcriptc.327A>T p.Gln109His missense_variant, splice_region_variant 4/192 ENSP00000344937.4 Q6ZPD9-1
DPY19L3ENST00000586987.5 linkuse as main transcriptc.327A>T p.Gln109His missense_variant, splice_region_variant 4/205 ENSP00000466086.1 K7ELH8

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251204
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135772
show subpopulations
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461296
Hom.:
0
Cov.:
30
AF XY:
0.00000413
AC XY:
3
AN XY:
726958
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.00000180
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.0000113

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 26, 2024The c.327A>T (p.Q109H) alteration is located in exon 4 (coding exon 3) of the DPY19L3 gene. This alteration results from a A to T substitution at nucleotide position 327, causing the glutamine (Q) at amino acid position 109 to be replaced by a histidine (H). 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
0.12
BayesDel_addAF
Benign
-0.097
T
BayesDel_noAF
Benign
-0.38
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Benign
0.046
T;T;T;T
Eigen
Benign
-0.12
Eigen_PC
Benign
0.022
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.66
T;T;.;T
M_CAP
Benign
0.016
T
MetaRNN
Benign
0.41
T;T;T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
0.94
L;.;L;.
PrimateAI
Benign
0.38
T
PROVEAN
Benign
-1.4
N;.;N;.
REVEL
Benign
0.11
Sift
Uncertain
0.018
D;.;D;.
Sift4G
Uncertain
0.029
D;D;D;D
Polyphen
0.0070
B;.;B;.
Vest4
0.23
MutPred
0.57
Loss of helix (P = 0.1299);Loss of helix (P = 0.1299);Loss of helix (P = 0.1299);Loss of helix (P = 0.1299);
MVP
0.48
MPC
0.29
ClinPred
0.83
D
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.8
Varity_R
0.12
gMVP
0.50

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.95
dbscSNV1_RF
Benign
0.70
SpliceAI score (max)
0.36
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.36
Position offset: 1

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: rs1381612647; hg19: chr19-32923711; API