dbSNP rs150303834: DGAT2:p.Tyr285* (chr11-75798272-C-A) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP6BS2

The NM_032564.5(DGAT2):c.855C>A(p.Tyr285*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000596 in 1,614,190 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.00051 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00061 ( 0 hom. )

Consequence

DGAT2
NM_032564.5 stop_gained

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 1.18

Publications

8 publications found

Variant links:

Genes affected

DGAT2 (HGNC:16940): (diacylglycerol O-acyltransferase 2) This gene encodes one of two enzymes which catalyzes the final reaction in the synthesis of triglycerides in which diacylglycerol is covalently bound to long chain fatty acyl-CoAs. The encoded protein catalyzes this reaction at low concentrations of magnesium chloride while the other enzyme has high activity at high concentrations of magnesium chloride. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2011]

DGAT2 Gene-Disease associations (from GenCC):

Charcot-Marie-Tooth disease
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

DGAT2 links:

UVRAG-DT (HGNC:):

UVRAG-DT links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP6

Variant 11-75798272-C-A is Benign according to our data. Variant chr11-75798272-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 2642162.

BS2

High AC in GnomAd4 at 77 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032564.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DGAT2	NM_032564.5	MANE Select	c.855C>A	p.Tyr285*	stop_gained	Exon 7 of 8	NP_115953.2
	DGAT2	NM_001253891.2		c.726C>A	p.Tyr242*	stop_gained	Exon 6 of 7	NP_001240820.1	Q96PD7-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DGAT2	ENST00000228027.12	TSL:1 MANE Select	c.855C>A	p.Tyr285*	stop_gained	Exon 7 of 8	ENSP00000228027.6	Q96PD7-1
DGAT2	ENST00000376262.7	TSL:1	c.726C>A	p.Tyr242*	stop_gained	Exon 6 of 7	ENSP00000365438.3	Q96PD7-2
DGAT2	ENST00000604733.5	TSL:1	c.717C>A	p.Tyr239*	stop_gained	Exon 6 of 7	ENSP00000474668.1	S4R3S3

Frequencies

GnomAD3 genomes

AF:

0.000506

AC:

AN:

152192

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000867

Gnomad OTH

AF:

0.00144

GnomAD2 exomes

AF:

0.000509

AC:

128

AN:

251442

AF XY:

0.000478

show subpopulations

Gnomad AFR exome

AF:

0.000246

Gnomad AMR exome

AF:

0.000260

Gnomad ASJ exome

AF:

0.000198

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000924

Gnomad NFE exome

AF:

0.000914

Gnomad OTH exome

AF:

0.000978

GnomAD4 exome

AF:

0.000605

AC:

885

AN:

1461880

Hom.:

Cov.:

AF XY:

0.000572

AC XY:

416

AN XY:

727246

show subpopulations

African (AFR)

AF:

0.000209

AC:

AN:

33480

American (AMR)

AF:

0.000425

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.000191

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.0000936

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.000730

AC:

812

AN:

1112010

Other (OTH)

AF:

0.000563

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.470

Heterozygous variant carriers

114

171

228

285

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

128

160

<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:

0.000506

AC:

AN:

152310

Hom.:

Cov.:

AF XY:

0.000443

AC XY:

AN XY:

74474

show subpopulations

African (AFR)

AF:

0.000120

AC:

AN:

41558

American (AMR)

AF:

0.000653

AC:

AN:

15310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000867

AC:

AN:

68020

Other (OTH)

AF:

0.00142

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.504

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000698

Hom.:

Bravo

AF:

0.000555

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000582

AC:

ExAC

AF:

0.000626

AC:

EpiCase

AF:

0.000709

EpiControl

AF:

0.000948

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.30

BayesDel_noAF

Pathogenic

0.59

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

Eigen

Uncertain

0.41

Eigen_PC

Uncertain

0.25

FATHMM_MKL

Uncertain

0.91

PhyloP100

1.2

Vest4

0.93

GERP RS

2.7

Mutation Taster

=2/198

disease causing (fs/PTC)

(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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over