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rs757899809

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_199242.3(UNC13D):c.2174A>G(p.Glu725Gly) variant causes a missense change. The variant allele was found at a frequency of 0.000139 in 1,564,424 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

UNC13D
NM_199242.3 missense

Scores

12
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.97
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
UNC13DNM_199242.3 linkuse as main transcriptc.2174A>G p.Glu725Gly missense_variant 23/32 ENST00000207549.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
UNC13DENST00000207549.9 linkuse as main transcriptc.2174A>G p.Glu725Gly missense_variant 23/321 NM_199242.3 P1Q70J99-1

Frequencies

GnomAD3 genomes
AF:
0.0000591
AC:
9
AN:
152214
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000103
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000409
AC:
7
AN:
171086
Hom.:
0
AF XY:
0.0000537
AC XY:
5
AN XY:
93036
show subpopulations
Gnomad AFR exome
AF:
0.000103
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:
0.0000834
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000148
AC:
209
AN:
1412210
Hom.:
0
Cov.:
33
AF XY:
0.000166
AC XY:
116
AN XY:
699450
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:
0.000185
Gnomad4 OTH exome
AF:
0.000119
GnomAD4 genome
AF:
0.0000591
AC:
9
AN:
152214
Hom.:
0
Cov.:
33
AF XY:
0.0000672
AC XY:
5
AN XY:
74358
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000103
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000142
Hom.:
0
Bravo
AF:
0.0000491
ExAC
AF:
0.0000252
AC:
3

ClinVar

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

Submissions by phenotype

Familial hemophagocytic lymphohistiocytosis 3 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeAug 31, 2022This sequence change replaces glutamic acid, which is acidic and polar, with glycine, which is neutral and non-polar, at codon 725 of the UNC13D protein (p.Glu725Gly). This variant is present in population databases (rs757899809, gnomAD 0.008%). This missense change has been observed in individual(s) with hemophagocytic lymphohistiocytosis (PMID: 21881043). ClinVar contains an entry for this variant (Variation ID: 578964). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Not Available"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Not Available"). 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Benign
-0.20
Cadd
Uncertain
25
Dann
Uncertain
1.0
DEOGEN2
Uncertain
0.45
T;.
Eigen
Uncertain
0.50
Eigen_PC
Uncertain
0.48
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Benign
0.66
T;T
M_CAP
Uncertain
0.11
D
MetaRNN
Uncertain
0.45
T;T
MetaSVM
Uncertain
-0.27
T
MutationAssessor
Benign
1.2
L;L
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.49
T
PROVEAN
Uncertain
-3.5
D;D
REVEL
Uncertain
0.46
Sift
Benign
0.082
T;T
Sift4G
Uncertain
0.022
D;D
Polyphen
1.0
D;D
Vest4
0.45
MutPred
0.42
Gain of MoRF binding (P = 0.0648);Gain of MoRF binding (P = 0.0648);
MVP
0.78
MPC
0.52
ClinPred
0.43
T
GERP RS
4.8
Varity_R
0.28
gMVP
0.42

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs757899809; hg19: chr17-73830530; API