1-3417945-C-G

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_022114.4(PRDM16):c.2809C>G(p.Pro937Ala) variant causes a missense change. The variant allele was found at a frequency of 0.0000564 in 1,613,174 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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. P937T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00031 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000030 ( 0 hom. )

Consequence

PRDM16
NM_022114.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 4.51

Variant links:

Genes affected

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.08504841).

BS2

High AC in GnomAd at 47 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PRDM16	NM_022114.4 linkuse as main transcript	c.2809C>G	p.Pro937Ala	missense_variant	11/17	ENST00000270722.10
PRDM16	NM_199454.3 linkuse as main transcript	c.2809C>G	p.Pro937Ala	missense_variant	11/17

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PRDM16	ENST00000270722.10 linkuse as main transcript	c.2809C>G	p.Pro937Ala	missense_variant	11/17	1	NM_022114.4	P1	Q9HAZ2-1

Frequencies

GnomAD3 genomes

AF:

0.000309

AC:

AN:

152228

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000989

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.000955

GnomAD3 exomes

AF:

0.0000608

AC:

AN:

246680

Hom.:

AF XY:

0.0000521

AC XY:

AN XY:

134258

show subpopulations

Gnomad AFR exome

AF:

0.000586

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000112

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000301

AC:

AN:

1460946

Hom.:

Cov.:

AF XY:

0.0000206

AC XY:

AN XY:

726750

show subpopulations

Gnomad4 AFR exome

AF:

0.000777

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000756

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.000116

GnomAD4 genome

AF:

0.000309

AC:

AN:

152228

Hom.:

Cov.:

AF XY:

0.000336

AC XY:

AN XY:

74368

show subpopulations

Gnomad4 AFR

AF:

0.000989

Gnomad4 AMR

AF:

0.000262

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000955

Bravo

AF:

0.000295

ExAC

AF:

0.0000828

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 06, 2021

The c.2809C>G (p.P937A) alteration is located in exon 11 (coding exon 11) of the PRDM16 gene. This alteration results from a C to G substitution at nucleotide position 2809, causing the proline (P) at amino acid position 937 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Dec 20, 2019

Has not been previously published as pathogenic or benign to our knowledge; In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Reported in ClinVar as a variant of uncertain significance (ClinVar Variant ID# 406243; Landrum et al., 2016) -

Left ventricular noncompaction 8

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Jan 15, 2024

This sequence change replaces proline, which is neutral and non-polar, with alanine, which is neutral and non-polar, at codon 937 of the PRDM16 protein (p.Pro937Ala). This variant is present in population databases (rs374972823, gnomAD 0.09%), and has an allele count higher than expected for a pathogenic variant. This variant has not been reported in the literature in individuals affected with PRDM16-related conditions. ClinVar contains an entry for this variant (Variation ID: 406243). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant¬†is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

PRDM16-related disorder

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Jul 07, 2023

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

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.43

Cadd

Benign

Dann

Uncertain

0.98

DEOGEN2

Benign

0.020

T;.;.;T;.

Eigen

Benign

-0.13

Eigen_PC

Benign

-0.010

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.93

D;D;D;D;D

M_CAP

Benign

0.015

MetaRNN

Benign

0.085

T;T;T;T;T

MetaSVM

Benign

-0.97

MutationTaster

Benign

1.0

D;D;D;D;D;D;D;D

PrimateAI

Uncertain

0.69

PROVEAN

Benign

-2.1

N;N;N;N;N

REVEL

Benign

0.032

Sift

Benign

0.12

T;T;T;T;T

Sift4G

Benign

0.24

T;T;T;T;T

Polyphen

0.026, 0.52

.;B;.;P;.

Vest4

0.63

MutPred

0.20

.;Loss of glycosylation at P937 (P = 0.0235);Loss of glycosylation at P937 (P = 0.0235);Loss of glycosylation at P937 (P = 0.0235);.;

MVP

0.41

MPC

0.36

ClinPred

0.11

GERP RS

3.8

Varity_R

0.061

gMVP

0.68

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

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