17-75840065-G-A

Position:

chr17-75840065-G-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_199242.3(UNC13D):c.904C>T(p.Leu302Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0019 in 1,613,592 control chromosomes in the GnomAD database, including 53 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0098 ( 24 hom., cov: 32)

Exomes 𝑓: 0.0011 ( 29 hom. )

Consequence

UNC13D
NM_199242.3 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 2.05

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.002488196).

BP6

Variant 17-75840065-G-A is Benign according to our data. Variant chr17-75840065-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 325269.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr17-75840065-G-A is described in Lovd as [Benign].

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0098 (1492/152310) while in subpopulation AFR AF= 0.0339 (1408/41564). AF 95% confidence interval is 0.0324. There are 24 homozygotes in gnomad4. There are 720 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 24 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
UNC13D	NM_199242.3 linkuse as main transcript	c.904C>T	p.Leu302Phe	missense_variant	11/32	ENST00000207549.9	NP_954712.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
UNC13D	ENST00000207549.9 linkuse as main transcript	c.904C>T	p.Leu302Phe	missense_variant	11/32	1	NM_199242.3	ENSP00000207549	P1	Q70J99-1

Frequencies

GnomAD3 genomes

AF:

0.00976

AC:

1485

AN:

152192

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0338

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00308

Gnomad ASJ

AF:

0.00173

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000147

Gnomad OTH

AF:

0.0100

GnomAD3 exomes

AF:

0.00271

AC:

677

AN:

249460

Hom.:

AF XY:

0.00213

AC XY:

288

AN XY:

135290

show subpopulations

Gnomad AFR exome

AF:

0.0356

Gnomad AMR exome

AF:

0.00203

Gnomad ASJ exome

AF:

0.000701

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000196

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000978

Gnomad OTH exome

AF:

0.00164

GnomAD4 exome

AF:

0.00108

AC:

1573

AN:

1461282

Hom.:

Cov.:

AF XY:

0.000896

AC XY:

651

AN XY:

726966

show subpopulations

Gnomad4 AFR exome

AF:

0.0358

Gnomad4 AMR exome

AF:

0.00237

Gnomad4 ASJ exome

AF:

0.000536

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000464

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000800

Gnomad4 OTH exome

AF:

0.00257

GnomAD4 genome

AF:

0.00980

AC:

1492

AN:

152310

Hom.:

Cov.:

AF XY:

0.00967

AC XY:

720

AN XY:

74478

show subpopulations

Gnomad4 AFR

AF:

0.0339

Gnomad4 AMR

AF:

0.00307

Gnomad4 ASJ

AF:

0.00173

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000147

Gnomad4 OTH

AF:

0.00994

Alfa

AF:

0.00248

Hom.:

Bravo

AF:

0.0118

ESP6500AA

AF:

0.0352

AC:

155

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00325

AC:

394

Asia WGS

AF:

0.00231

AC:

AN:

3478

EpiCase

AF:

0.000273

EpiControl

AF:

0.000178

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Familial hemophagocytic lymphohistiocytosis 3

Benign:3

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 31, 2024	- -
Benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 13, 2018	This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Likely benign, criteria provided, single submitter	clinical testing	Fulgent Genetics, Fulgent Genetics	Jan 05, 2022	- -

UNC13D-related disorder

Benign:1

Benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Feb 21, 2019

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

not provided

Benign:1

Benign, criteria provided, single submitter

not provided

Breakthrough Genomics, Breakthrough Genomics

- -

Autoinflammatory syndrome

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Genome Diagnostics Laboratory, The Hospital for Sick Children

Jan 19, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.097

BayesDel_addAF

Benign

-0.56

BayesDel_noAF

Benign

-0.56

CADD

Benign

DANN

Benign

0.89

DEOGEN2

Benign

0.11

T;.;T

Eigen

Benign

-0.55

Eigen_PC

Benign

-0.35

FATHMM_MKL

Benign

0.47

LIST_S2

Benign

0.76

T;T;T

MetaRNN

Benign

0.0025

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.28

N;N;.

MutationTaster

Benign

0.98

N;N

PrimateAI

Benign

0.33

PROVEAN

Benign

-0.39

N;N;.

REVEL

Benign

0.062

Sift

Benign

0.58

T;T;.

Sift4G

Benign

0.69

T;T;T

Polyphen

0.0010

B;.;.

Vest4

0.083

MVP

0.60

MPC

0.11

ClinPred

0.00071

GERP RS

3.4

Varity_R

0.039

gMVP

0.15

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.060

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over