Genetic Variant PRDM16-DT:n.33_41dupGCCGCCGCC (chr1-3069056-A-AGGCGGCGGC) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The ENST00000687743.2(PRDM16-DT):n.33_41dupGCCGCCGCC variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000016 in 500,622 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 29)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

PRDM16-DT
ENST00000687743.2 non_coding_transcript_exon

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.569

Publications

0 publications found

Variant links:

Genes affected

PRDM16-DT (HGNC:48664): (PRDM16 divergent transcript)

PRDM16-DT links:

LOC124903827 (HGNC:):

LOC124903827 links:

PRDM16 (HGNC:14000): (PR/SET domain 16) The reciprocal translocation t(1;3)(p36;q21) occurs in a subset of myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML). This gene is located near the 1p36.3 breakpoint and has been shown to be specifically expressed in the t(1:3)(p36,q21)-positive MDS/AML. The protein encoded by this gene is a zinc finger transcription factor and contains an N-terminal PR domain. The translocation results in the overexpression of a truncated version of this protein that lacks the PR domain, which may play an important role in the pathogenesis of MDS and AML. Alternatively spliced transcript variants encoding distinct isoforms have been reported. [provided by RefSeq, Jul 2008]

PRDM16 Gene-Disease associations (from GenCC):

left ventricular noncompaction 8
Inheritance: AD Classification: MODERATE, LIMITED Submitted by: Ambry Genetics, Illumina, Labcorp Genetics (formerly Invitae)
familial isolated dilated cardiomyopathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
left ventricular noncompaction
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
dilated cardiomyopathy
Inheritance: AD Classification: LIMITED Submitted by: ClinGen

PRDM16 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PRDM16	NM_022114.4 link	c.-204_-203insGGCGGCGGC		upstream_gene_variant		ENST00000270722.10	NP_071397.3	Q9HAZ2-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PRDM16	ENST00000270722.10 link	c.-204_-203insGGCGGCGGC		upstream_gene_variant		1	NM_022114.4	ENSP00000270722.5		Q9HAZ2-1

Frequencies

GnomAD3 genomes

AF:

0.0000201

AC:

AN:

149166

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000753

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000142

AC:

AN:

351456

Hom.:

AF XY:

0.0000206

AC XY:

AN XY:

194448

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

6524

American (AMR)

AF:

0.00

AC:

AN:

12950

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

13728

East Asian (EAS)

AF:

0.00

AC:

AN:

19044

South Asian (SAS)

AF:

0.00

AC:

AN:

43390

European-Finnish (FIN)

AF:

0.00

AC:

AN:

30058

Middle Eastern (MID)

AF:

0.000595

AC:

AN:

1682

European-Non Finnish (NFE)

AF:

0.0000146

AC:

AN:

205068

Other (OTH)

AF:

0.0000526

AC:

AN:

19012

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.505

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000201

AC:

AN:

149166

Hom.:

Cov.:

AF XY:

0.0000275

AC XY:

AN XY:

72802

show subpopulations

African (AFR)

AF:

0.0000753

AC:

AN:

39826

American (AMR)

AF:

0.00

AC:

AN:

15154

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3452

East Asian (EAS)

AF:

0.00

AC:

AN:

4984

South Asian (SAS)

AF:

0.00

AC:

AN:

4660

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10326

Middle Eastern (MID)

AF:

0.00

AC:

AN:

302

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67492

Other (OTH)

AF:

0.00

AC:

AN:

2062

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

0.57

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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1-3069056-A-AGGCGGCGGC

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over