rs560126604

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_199242.3(UNC13D):​c.514C>T​(p.Arg172Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000291 in 1,613,428 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R172P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

UNC13D
NM_199242.3 missense

Scores

1
8
9

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 3.28

Publications

4 publications found
Variant links:
Genes affected
UNC13D (HGNC:23147): (unc-13 homolog D) This gene encodes a protein that is a member of the UNC13 family, containing similar domain structure as other family members but lacking an N-terminal phorbol ester-binding C1 domain present in other Munc13 proteins. The protein appears to play a role in vesicle maturation during exocytosis and is involved in regulation of cytolytic granules secretion. Mutations in this gene are associated with familial hemophagocytic lymphohistiocytosis type 3, a genetically heterogeneous, rare autosomal recessive disorder. [provided by RefSeq, Jul 2008]
UNC13D Gene-Disease associations (from GenCC):
  • familial hemophagocytic lymphohistiocytosis 3
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Laboratory for Molecular Medicine, Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen
  • hereditary hemophagocytic lymphohistiocytosis
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.1629656).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_199242.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
UNC13D
NM_199242.3
MANE Select
c.514C>Tp.Arg172Cys
missense
Exon 6 of 32NP_954712.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
UNC13D
ENST00000207549.9
TSL:1 MANE Select
c.514C>Tp.Arg172Cys
missense
Exon 6 of 32ENSP00000207549.3
UNC13D
ENST00000412096.6
TSL:2
c.514C>Tp.Arg172Cys
missense
Exon 6 of 33ENSP00000388093.1
UNC13D
ENST00000592386.6
TSL:5
c.496C>Tp.Arg166Cys
missense
Exon 6 of 11ENSP00000466826.2

Frequencies

GnomAD3 genomes
AF:
0.0000525
AC:
8
AN:
152240
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000723
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
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
GnomAD2 exomes
AF:
0.0000520
AC:
13
AN:
250196
AF XY:
0.0000442
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000203
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.0000355
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000267
AC:
39
AN:
1461070
Hom.:
0
Cov.:
32
AF XY:
0.0000275
AC XY:
20
AN XY:
726826
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33478
American (AMR)
AF:
0.000358
AC:
16
AN:
44708
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39690
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86236
European-Finnish (FIN)
AF:
0.0000758
AC:
4
AN:
52748
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000126
AC:
14
AN:
1111932
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60378
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.467
Heterozygous variant carriers
0
2
4
7
9
11
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000525
AC:
8
AN:
152358
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74502
show subpopulations
African (AFR)
AF:
0.0000721
AC:
3
AN:
41588
American (AMR)
AF:
0.000261
AC:
4
AN:
15310
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68018
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.588
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000982
ExAC
AF:
0.0000577
AC:
7
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Familial hemophagocytic lymphohistiocytosis 3 Uncertain:2
Oct 29, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 172 of the UNC13D protein (p.Arg172Cys). This variant is present in population databases (rs560126604, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with UNC13D-related conditions. ClinVar contains an entry for this variant (Variation ID: 533093). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed for this missense variant. However, the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on UNC13D protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

Jul 31, 2020
New York Genome Center
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.30
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.38
T
Eigen
Uncertain
0.61
Eigen_PC
Uncertain
0.55
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.94
D
M_CAP
Uncertain
0.12
D
MetaRNN
Benign
0.16
T
MetaSVM
Benign
-0.49
T
MutationAssessor
Uncertain
2.3
M
PhyloP100
3.3
PrimateAI
Uncertain
0.54
T
PROVEAN
Benign
-1.1
N
REVEL
Benign
0.29
Sift
Benign
0.053
T
Sift4G
Uncertain
0.0020
D
Polyphen
1.0
D
Vest4
0.70
MutPred
0.57
Loss of disorder (P = 0.0192)
MVP
0.79
MPC
0.58
ClinPred
0.45
T
GERP RS
4.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.11
gMVP
0.33
Mutation Taster
=76/24
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs560126604; hg19: chr17-73838569; COSMIC: COSV52884065; COSMIC: COSV52884065; API