17-75836642-T-G

Position:

chr17-75836642-T-G

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 2P and 13B. PM1BP4_StrongBP6BS1BS2

The NM_199242.3(UNC13D):c.1228A>C(p.Ile410Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000368 in 1,613,688 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I410T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00053 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00035 ( 5 hom. )

Consequence

UNC13D
NM_199242.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:3

Conservation

PhyloP100: 1.12

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:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 6 uncertain in NM_199242.3

BP4

Computational evidence support a benign effect (MetaRNN=0.00644204).

BP6

Variant 17-75836642-T-G is Benign according to our data. Variant chr17-75836642-T-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 225510.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=3, Benign=1}.

BS1

Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000532 (81/152206) while in subpopulation EAS AF= 0.0147 (76/5184). AF 95% confidence interval is 0.012. There are 1 homozygotes in gnomad4. There are 47 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 5 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
UNC13D	NM_199242.3 linkuse as main transcript	c.1228A>C	p.Ile410Leu	missense_variant	14/32	ENST00000207549.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
UNC13D	ENST00000207549.9 linkuse as main transcript	c.1228A>C	p.Ile410Leu	missense_variant	14/32	1	NM_199242.3	P1	Q70J99-1

Frequencies

GnomAD3 genomes

AF:

0.000533

AC:

AN:

152088

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.0146

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00119

AC:

298

AN:

250852

Hom.:

AF XY:

0.00102

AC XY:

139

AN XY:

135660

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0159

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000653

GnomAD4 exome

AF:

0.000351

AC:

513

AN:

1461482

Hom.:

Cov.:

AF XY:

0.000323

AC XY:

235

AN XY:

726994

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0116

Gnomad4 SAS exome

AF:

0.000267

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000450

Gnomad4 OTH exome

AF:

0.000414

GnomAD4 genome

AF:

0.000532

AC:

AN:

152206

Hom.:

Cov.:

AF XY:

0.000631

AC XY:

AN XY:

74444

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.0147

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000567

Hom.:

Bravo

AF:

0.000638

ExAC

AF:

0.00104

AC:

126

Asia WGS

AF:

0.00231

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Familial hemophagocytic lymphohistiocytosis 3

Uncertain:1Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 12, 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 likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -
Uncertain significance, criteria provided, single submitter	reference population	Soonchunhyang University Bucheon Hospital, Soonchunhyang University Medical Center	Mar 18, 2016	- -
Benign, criteria provided, single submitter	clinical testing	Invitae	Jan 29, 2024	- -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Mendelics

May 28, 2019

- -

Autoinflammatory syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genome Diagnostics Laboratory, The Hospital for Sick Children

Jun 01, 2019

- -

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.069

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.44

CADD

Benign

DANN

Benign

0.70

DEOGEN2

Benign

0.063

T;.

Eigen

Benign

-0.53

Eigen_PC

Benign

-0.32

FATHMM_MKL

Benign

0.71

LIST_S2

Benign

0.72

T;T

MetaRNN

Benign

0.0064

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.48

N;N

MutationTaster

Benign

0.99

D;D

PrimateAI

Uncertain

0.61

PROVEAN

Benign

0.080

N;N

REVEL

Pathogenic

0.67

Sift

Benign

1.0

T;T

Sift4G

Benign

0.33

T;T

Polyphen

0.019

B;B

Vest4

0.39

MVP

0.48

MPC

0.096

ClinPred

0.028

GERP RS

4.3

Varity_R

0.10

gMVP

0.24

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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