rs61754871

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_199242.3(UNC13D):c.847A>G(p.Ile283Val) variant causes a missense change. The variant allele was found at a frequency of 0.00143 in 1,613,934 control chromosomes in the GnomAD database, including 36 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I283L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0079 ( 22 hom., cov: 32)

Exomes 𝑓: 0.00076 ( 14 hom. )

Consequence

UNC13D
NM_199242.3 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:10

Conservation

PhyloP100: 3.82

Publications

3 publications found

Variant links:

COSMIC-nc: COSV104392539

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

UNC13D links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.007616967).

BP6

Variant 17-75840236-T-C is Benign according to our data. Variant chr17-75840236-T-C is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 263246.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00789 (1201/152250) while in subpopulation AFR AF = 0.0272 (1130/41526). AF 95% confidence interval is 0.0259. There are 22 homozygotes in GnomAd4. There are 561 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 22 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
UNC13D	NM_199242.3 link	c.847A>G	p.Ile283Val	missense_variant	Exon 10 of 32	ENST00000207549.9	NP_954712.1	Q70J99-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
UNC13D	ENST00000207549.9 link	c.847A>G	p.Ile283Val	missense_variant	Exon 10 of 32	1	NM_199242.3	ENSP00000207549.3		Q70J99-1

Frequencies

GnomAD3 genomes

AF:

0.00787

AC:

1197

AN:

152132

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0272

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00347

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.00478

GnomAD2 exomes

AF:

0.00194

AC:

485

AN:

250474

AF XY:

0.00141

show subpopulations

Gnomad AFR exome

AF:

0.0254

Gnomad AMR exome

AF:

0.00168

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000797

Gnomad OTH exome

AF:

0.000817

GnomAD4 exome

AF:

0.000761

AC:

1113

AN:

1461684

Hom.:

Cov.:

AF XY:

0.000657

AC XY:

478

AN XY:

727156

show subpopulations

African (AFR)

AF:

0.0256

AC:

857

AN:

33480

American (AMR)

AF:

0.00145

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000464

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53240

Middle Eastern (MID)

AF:

0.000693

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000423

AC:

AN:

1111996

Other (OTH)

AF:

0.00225

AC:

136

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

148

223

297

371

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

112

140

<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:

0.00789

AC:

1201

AN:

152250

Hom.:

Cov.:

AF XY:

0.00753

AC XY:

561

AN XY:

74460

show subpopulations

African (AFR)

AF:

0.0272

AC:

1130

AN:

41526

American (AMR)

AF:

0.00346

AC:

AN:

15312

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3464

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00680

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000882

AC:

AN:

68008

Other (OTH)

AF:

0.00473

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.499

Heterozygous variant carriers

122

183

244

305

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<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:

0.00259

Hom.:

Bravo

AF:

0.00863

ESP6500AA

AF:

0.0268

AC:

118

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00250

AC:

304

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000119

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:10

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:3

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Nov 28, 2022

Genetic Services Laboratory, University of Chicago

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Mar 06, 2022

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: UNC13D c.847A>G (p.Ile283Val) results in a conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.0019 in 250474 control chromosomes, predominantly at a frequency of 0.025 within the African or African-American subpopulation in the gnomAD database, including 7 homozygotes. The observed variant frequency within African or African-American control individuals in the gnomAD database is approximately 9.13 fold of the estimated maximal expected allele frequency for a pathogenic variant in UNC13D causing Familial Hemophagocytic Lymphohistiocytosis phenotype (0.0027), strongly suggesting that the variant is a benign polymorphism found primarily in populations of African or African-American origin. Three clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as benign/likely benign. Based on the evidence outlined above, the variant was classified as benign. -

Familial hemophagocytic lymphohistiocytosis 3

Benign:3

Nov 04, 2021

Fulgent Genetics, Fulgent Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 29, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Apr 27, 2017

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. -

not provided

Benign:3

Feb 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

UNC13D: BS1, BS2 -

May 28, 2019

Mendelics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Autoinflammatory syndrome

Benign:1

Mar 01, 2018

Genome Diagnostics Laboratory, The Hospital for Sick Children

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.40

BayesDel_noAF

Benign

-0.32

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.072

T;.;T;T

Eigen

Benign

0.016

Eigen_PC

Benign

0.087

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.76

T;T;T;T

MetaRNN

Benign

0.0076

T;T;T;T

MetaSVM

Benign

-0.84

MutationAssessor

Benign

2.0

M;M;.;.

PhyloP100

3.8

PrimateAI

Uncertain

0.52

PROVEAN

Benign

-0.20

N;N;.;.

REVEL

Benign

0.16

Sift

Uncertain

0.020

D;D;.;.

Sift4G

Benign

0.13

T;T;T;T

Polyphen

0.37

B;.;.;.

Vest4

0.65

MVP

0.81

MPC

0.25

ClinPred

0.0067

GERP RS

4.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.11

gMVP

0.14

Mutation Taster

=95/5

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over