chr1-3404758-A-G

Variant names:

• chr1-3404758-A-G
• rs1553174650
• NM_022114.4:c.904A>G

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP6

The NM_022114.4(PRDM16):​c.904A>G​(p.Ile302Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,212 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: PRDM16 NM_022114.4 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:1
• Conservation: PhyloP100: 1.68
• Publications: 0 publications found

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 Gene-Disease associations (from GenCC):

• dilated cardiomyopathy

  Inheritance: AD Classification: STRONG Submitted by: ClinGen
• left ventricular noncompaction 8

  Inheritance: AD Classification: MODERATE, LIMITED Submitted by: Illumina, Labcorp Genetics (formerly Invitae), Ambry Genetics
• familial isolated dilated cardiomyopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• left ventricular noncompaction

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.14304397).
• BP6: Variant 1-3404758-A-G is Benign according to our data. Variant chr1-3404758-A-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 541377.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_022114.4. 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
	PRDM16	NM_022114.4	MANE Select	c.904A>G	p.Ile302Val	missense	Exon 7 of 17	NP_071397.3
	PRDM16	NM_199454.3		c.904A>G	p.Ile302Val	missense	Exon 7 of 17	NP_955533.2	Q9HAZ2-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRDM16	ENST00000270722.10	TSL:1 MANE Select	c.904A>G	p.Ile302Val	missense	Exon 7 of 17	ENSP00000270722.5	Q9HAZ2-1
	PRDM16	ENST00000378391.6	TSL:1	c.904A>G	p.Ile302Val	missense	Exon 7 of 17	ENSP00000367643.2	Q9HAZ2-2
	PRDM16	ENST00000512462.5	TSL:1	n.682A>G		non_coding_transcript_exon	Exon 6 of 16

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461212 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 726920

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44702

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26122

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52852

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111954

Other (OTH) AF: 0.00 AC: 0 AN: 60382

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

ClinVar

ClinVar submissions

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	-	1	Inborn genetic diseases (1)
-	1	-	Left ventricular noncompaction 8 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.068
BayesDel_addAF	Benign	-0.38	T
BayesDel_noAF	Benign	-0.78
CADD	Benign	8.4
DANN	Benign	0.45
DEOGEN2	Benign	0.0072	T
Eigen	Benign	-0.73
Eigen_PC	Benign	-0.64
FATHMM_MKL	Benign	0.29	N
LIST_S2	Benign	0.78	T
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.14	T
MetaSVM	Benign	-0.93	T
MutationAssessor	Benign	0.52	N
PhyloP100		1.7
PrimateAI	Benign	0.40	T
PROVEAN	Benign	0.21	N
REVEL	Benign	0.045
Sift	Benign	1.0	T
Sift4G	Benign	1.0	T
Polyphen		0.0	B
Vest4		0.23
MutPred		0.51		Gain of disorder (P = 0.0999)
MVP		0.13
MPC		0.29
ClinPred		0.024	T
GERP RS		-0.28
Varity_R		0.025
gMVP		0.23
Mutation Taster		=93/7	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs1553174650; hg19: chr1-3321322;