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GeneBe

19-17606104-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP2PP3

The NM_001080421.3(UNC13A):ā€‹c.5062A>Gā€‹(p.Lys1688Glu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…). Synonymous variant affecting the same amino acid position (i.e. K1688K) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

UNC13A
NM_001080421.3 missense

Scores

7
10
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.95
Variant links:
Genes affected
UNC13A (HGNC:23150): (unc-13 homolog A) This gene encodes a member of the UNC13 family. UNC13 proteins bind to phorbol esters and diacylglycerol and play important roles in neurotransmitter release at synapses. Single nucleotide polymorphisms in this gene may be associated with sporadic amyotrophic lateral sclerosis. [provided by RefSeq, Feb 2012]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant where missense usually causes diseases, UNC13A
PP3
MetaRNN computational evidence supports a deleterious effect, 0.813

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
UNC13ANM_001080421.3 linkuse as main transcriptc.5062A>G p.Lys1688Glu missense_variant 44/44 ENST00000519716.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
UNC13AENST00000519716.7 linkuse as main transcriptc.5062A>G p.Lys1688Glu missense_variant 44/445 NM_001080421.3 A2
UNC13AENST00000551649.5 linkuse as main transcriptc.5119A>G p.Lys1707Glu missense_variant 45/455 P3
UNC13AENST00000552293.5 linkuse as main transcriptc.5044A>G p.Lys1682Glu missense_variant 42/425 A2
UNC13AENST00000550896.1 linkuse as main transcriptc.4981A>G p.Lys1661Glu missense_variant 40/405 A2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1443890
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
717772
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

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

Submissions by phenotype

UNC13A-related disorder Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesApr 27, 2023The UNC13A c.5062A>G variant is predicted to result in the amino acid substitution p.Lys1688Glu. To our knowledge, this variant has not been reported in the literature or in a large population database (http://gnomad.broadinstitute.org), indicating this variant is rare. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Uncertain
0.13
D
BayesDel_noAF
Uncertain
-0.060
CADD
Uncertain
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.73
D;.;T;.
Eigen
Uncertain
0.37
Eigen_PC
Benign
0.21
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Pathogenic
1.0
D;D;D;D
M_CAP
Pathogenic
0.33
D
MetaRNN
Pathogenic
0.81
D;D;D;D
MetaSVM
Uncertain
0.42
D
MutationAssessor
Pathogenic
3.3
M;.;.;.
MutationTaster
Benign
0.98
D;D;D;D;D
PrimateAI
Pathogenic
0.88
D
PROVEAN
Uncertain
-3.4
D;D;D;D
REVEL
Uncertain
0.45
Sift
Uncertain
0.0010
D;D;D;D
Sift4G
Pathogenic
0.0010
D;D;D;D
Polyphen
1.0
D;.;.;.
Vest4
0.81
MutPred
0.34
Loss of ubiquitination at K1688 (P = 0.0023);.;.;.;
MVP
0.82
MPC
2.3
ClinPred
0.99
D
GERP RS
1.9
Varity_R
0.59
gMVP
0.85

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-17716913; API