17-75831254-T-G

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_199242.3(UNC13D):​c.2542A>C​(p.Ile848Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00137 in 1,614,064 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0010 ( 1 hom., cov: 33)
Exomes 𝑓: 0.0014 ( 1 hom. )

Consequence

UNC13D
NM_199242.3 missense

Scores

1
17

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:6

Conservation

PhyloP100: -0.0660

Publications

8 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, ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • 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: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0074299574).
BP6
Variant 17-75831254-T-G is Benign according to our data. Variant chr17-75831254-T-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 464455.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00101 (154/152276) while in subpopulation NFE AF = 0.00182 (124/68020). AF 95% confidence interval is 0.00156. There are 1 homozygotes in GnomAd4. There are 72 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

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

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
UNC13D
NM_199242.3
MANE Select
c.2542A>Cp.Ile848Leu
missense
Exon 26 of 32NP_954712.1Q70J99-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
UNC13D
ENST00000207549.9
TSL:1 MANE Select
c.2542A>Cp.Ile848Leu
missense
Exon 26 of 32ENSP00000207549.3Q70J99-1
UNC13D
ENST00000412096.6
TSL:2
c.2542A>Cp.Ile848Leu
missense
Exon 26 of 33ENSP00000388093.1Q70J99-3
UNC13D
ENST00000868100.1
c.2542A>Cp.Ile848Leu
missense
Exon 27 of 33ENSP00000538159.1

Frequencies

GnomAD3 genomes
AF:
0.00101
AC:
154
AN:
152158
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000241
Gnomad AMI
AF:
0.00219
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00231
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000188
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00182
Gnomad OTH
AF:
0.00191
GnomAD2 exomes
AF:
0.000962
AC:
241
AN:
250430
AF XY:
0.000951
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000434
Gnomad ASJ exome
AF:
0.00279
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000465
Gnomad NFE exome
AF:
0.00169
Gnomad OTH exome
AF:
0.000981
GnomAD4 exome
AF:
0.00140
AC:
2050
AN:
1461788
Hom.:
1
Cov.:
34
AF XY:
0.00136
AC XY:
986
AN XY:
727182
show subpopulations
African (AFR)
AF:
0.000269
AC:
9
AN:
33480
American (AMR)
AF:
0.000313
AC:
14
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00295
AC:
77
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.000150
AC:
8
AN:
53330
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00169
AC:
1882
AN:
1112004
Other (OTH)
AF:
0.000994
AC:
60
AN:
60392
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
122
244
367
489
611
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
78
156
234
312
390
<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:
0.00101
AC:
154
AN:
152276
Hom.:
1
Cov.:
33
AF XY:
0.000967
AC XY:
72
AN XY:
74462
show subpopulations
African (AFR)
AF:
0.000241
AC:
10
AN:
41544
American (AMR)
AF:
0.000261
AC:
4
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00231
AC:
8
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5172
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.000188
AC:
2
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00182
AC:
124
AN:
68020
Other (OTH)
AF:
0.00189
AC:
4
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
9
17
26
34
43
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:
0.00145
Hom.:
1
Bravo
AF:
0.000982
TwinsUK
AF:
0.00108
AC:
4
ALSPAC
AF:
0.00182
AC:
7
ESP6500AA
AF:
0.000681
AC:
3
ESP6500EA
AF:
0.00186
AC:
16
ExAC
AF:
0.000898
AC:
109
EpiCase
AF:
0.00142
EpiControl
AF:
0.00160

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
5
not provided (5)
-
2
1
Familial hemophagocytic lymphohistiocytosis 3 (3)
-
1
-
Autoinflammatory syndrome (1)
-
1
-
not specified (1)
-
1
-
UNC13D-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.084
BayesDel_addAF
Benign
-0.49
T
BayesDel_noAF
Benign
-0.49
CADD
Benign
12
DANN
Benign
0.93
DEOGEN2
Benign
0.036
T
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.048
N
LIST_S2
Benign
0.68
T
M_CAP
Uncertain
0.13
D
MetaRNN
Benign
0.0074
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.69
N
PhyloP100
-0.066
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-0.090
N
REVEL
Benign
0.12
Sift
Benign
0.10
T
Sift4G
Benign
0.64
T
Polyphen
0.0010
B
Vest4
0.17
MVP
0.36
MPC
0.096
ClinPred
0.0097
T
GERP RS
-3.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.12
gMVP
0.14
Mutation Taster
=15/85
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.080
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: rs144968313; hg19: chr17-73827335; COSMIC: COSV104392699; API