rs377594755

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BS1_Supporting

The ENST00000207549.9(UNC13D):​c.3224G>T​(p.Arg1075Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000169 in 1,594,670 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R1075W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

UNC13D
ENST00000207549.9 missense

Scores

17
1

Clinical Significance

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

Conservation

PhyloP100: 2.58

Publications

3 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 -1 ACMG points.

BS1
Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.0000166 (24/1442318) while in subpopulation MID AF = 0.0011 (6/5448). AF 95% confidence interval is 0.000479. There are 0 homozygotes in GnomAdExome4. There are 12 alleles in the male GnomAdExome4 subpopulation. Median coverage is 31. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000207549.9. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
UNC13D
NM_199242.3
MANE Select
c.3224G>Tp.Arg1075Leu
missense
Exon 32 of 32NP_954712.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
UNC13D
ENST00000207549.9
TSL:1 MANE Select
c.3224G>Tp.Arg1075Leu
missense
Exon 32 of 32ENSP00000207549.3
UNC13D
ENST00000412096.6
TSL:2
c.3224G>Tp.Arg1075Leu
missense
Exon 32 of 33ENSP00000388093.1
UNC13D
ENST00000699510.1
c.2090G>Tp.Arg697Leu
missense
Exon 20 of 20ENSP00000514405.1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152234
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000143
AC:
3
AN:
209066
AF XY:
0.0000263
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000111
Gnomad OTH exome
AF:
0.000189
GnomAD4 exome
AF:
0.0000166
AC:
24
AN:
1442318
Hom.:
0
Cov.:
31
AF XY:
0.0000168
AC XY:
12
AN XY:
716206
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33000
American (AMR)
AF:
0.00
AC:
0
AN:
42164
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25760
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38474
South Asian (SAS)
AF:
0.0000239
AC:
2
AN:
83574
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50638
Middle Eastern (MID)
AF:
0.00110
AC:
6
AN:
5448
European-Non Finnish (NFE)
AF:
0.0000145
AC:
16
AN:
1103750
Other (OTH)
AF:
0.00
AC:
0
AN:
59510
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
2
4
6
8
10
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:
0.0000197
AC:
3
AN:
152352
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74492
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41590
American (AMR)
AF:
0.00
AC:
0
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68032
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Familial hemophagocytic lymphohistiocytosis 3 (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.21
BayesDel_addAF
Uncertain
0.078
D
BayesDel_noAF
Uncertain
-0.020
CADD
Uncertain
23
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.50
T
Eigen
Uncertain
0.45
Eigen_PC
Uncertain
0.41
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Uncertain
0.90
D
M_CAP
Uncertain
0.16
D
MetaRNN
Uncertain
0.54
D
MetaSVM
Uncertain
-0.16
T
MutationAssessor
Uncertain
2.8
M
PhyloP100
2.6
PrimateAI
Uncertain
0.53
T
PROVEAN
Uncertain
-3.6
D
REVEL
Uncertain
0.44
Sift
Uncertain
0.0030
D
Sift4G
Uncertain
0.0060
D
Polyphen
1.0
D
Vest4
0.39
MutPred
0.46
Loss of solvent accessibility (P = 0.0079)
MVP
0.81
MPC
0.37
ClinPred
0.93
D
GERP RS
4.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.28
gMVP
0.65
Mutation Taster
=13/87
disease causing

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

Other links and lift over

dbSNP: rs377594755; hg19: chr17-73824095; API