19-17610072-T-G

Variant summary

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

The NM_001080421.3(UNC13A):ā€‹c.4679A>Cā€‹(p.Gln1560Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,706 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 (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

UNC13A
NM_001080421.3 missense

Scores

3
10
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.89
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 in gene, where missense usually causes diseases (based on misZ statistic), UNC13A. . Gene score misZ 5.6267 (greater than the threshold 3.09). Trascript score misZ 5.1925 (greater than threshold 3.09). GenCC has associacion of gene with congenital nervous system disorder.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.786

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
UNC13ANM_001080421.3 linkuse as main transcriptc.4679A>C p.Gln1560Pro missense_variant 43/44 ENST00000519716.7 NP_001073890.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
UNC13AENST00000519716.7 linkuse as main transcriptc.4679A>C p.Gln1560Pro missense_variant 43/445 NM_001080421.3 ENSP00000429562 A2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249236
Hom.:
0
AF XY:
0.00000740
AC XY:
1
AN XY:
135206
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:
0.00000885
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461706
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727128
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000508
Hom.:
0
Bravo
AF:
0.00000378

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 GeneticsSep 29, 2023The c.4679A>C (p.Q1560P) alteration is located in exon 43 (coding exon 43) of the UNC13A gene. This alteration results from a A to C substitution at nucleotide position 4679, causing the glutamine (Q) at amino acid position 1560 to be replaced by a proline (P). 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
Pathogenic
0.78
BayesDel_addAF
Uncertain
0.063
T
BayesDel_noAF
Benign
-0.15
CADD
Pathogenic
27
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.67
D;.;T;.
Eigen
Benign
0.079
Eigen_PC
Benign
0.19
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.97
D;D;D;D
M_CAP
Uncertain
0.088
D
MetaRNN
Pathogenic
0.79
D;D;D;D
MetaSVM
Benign
-0.61
T
MutationAssessor
Benign
1.7
L;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Uncertain
0.70
T
PROVEAN
Pathogenic
-4.8
D;D;D;D
REVEL
Uncertain
0.51
Sift
Uncertain
0.016
D;D;D;D
Sift4G
Uncertain
0.038
D;D;D;D
Polyphen
0.028
B;.;.;.
Vest4
0.68
MutPred
0.75
Loss of MoRF binding (P = 0.078);.;.;.;
MVP
0.47
MPC
2.1
ClinPred
0.98
D
GERP RS
4.1
Varity_R
0.77
gMVP
0.88

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.

Other links and lift over

dbSNP: rs1299867029; hg19: chr19-17720881; API