1-3417934-G-T

Variant names:

• chr1-3417934-G-T
• rs572092688
• NM_022114.4:c.2798G>T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_022114.4(PRDM16):​c.2798G>T​(p.Arg933Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000755 in 1,324,178 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R933W) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.6e-7 (0 hom.)
• Consequence: PRDM16 NM_022114.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 9.44

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 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	c.2798G>T	p.Arg933Leu	missense_variant	Exon 11 of 17	ENST00000270722.10	NP_071397.3
PRDM16	NM_199454.3	c.2798G>T	p.Arg933Leu	missense_variant	Exon 11 of 17		NP_955533.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PRDM16	ENST00000270722.10	c.2798G>T	p.Arg933Leu	missense_variant	Exon 11 of 17	1	NM_022114.4	ENSP00000270722.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.00000413 AC: 1 AN: 242070 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 131788

Gnomad AFR exome AF: 0.0000656

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

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: 7.55e-7 AC: 1 AN: 1324178 Hom.: 0 Cov.: 35 AF XY: 0.00 AC XY: 0 AN XY: 659142

Gnomad4 AFR exome AF: 0.0000338

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.86
BayesDel_addAF	Uncertain	0.050	T
BayesDel_noAF	Benign	-0.17
CADD	Pathogenic	30
DANN	Uncertain	1.0
DEOGEN2	Benign	0.059	T;.;.;D;.
Eigen	Uncertain	0.57
Eigen_PC	Uncertain	0.60
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.97	D;D;D;D;D
M_CAP	Benign	0.029	D
MetaRNN	Uncertain	0.47	T;T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.5	.;M;.;M;.
PrimateAI	Uncertain	0.75	T
PROVEAN	Uncertain	-3.5	D;D;D;D;D
REVEL	Benign	0.28
Sift	Uncertain	0.013	D;D;D;D;D
Sift4G	Benign	0.14	T;T;T;T;T
Polyphen		0.70, 1.0	.;P;.;D;.
Vest4		0.86
MutPred		0.22		.;Loss of methylation at R933 (P = 0.04);Loss of methylation at R933 (P = 0.04);Loss of methylation at R933 (P = 0.04);.;
MVP		0.51
MPC		1.2
ClinPred		0.98	D
GERP RS		4.6
Varity_R		0.46
gMVP		0.77

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

Other links and lift over

dbSNP: rs572092688; hg19: chr1-3334498;