chr1-3431085-C-G

Variant names:

• chr1-3431085-C-G
• rs368383914
• NM_022114.4:c.3498C>G

Variant summary

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

The NM_022114.4(PRDM16):​c.3498C>G​(p.Ala1166Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000715 in 1,399,364 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. A1166A) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.1e-7 (0 hom.)
• Consequence: PRDM16 NM_022114.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0710
• 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):

• 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

ACMG classification

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

• PM2: Very rare variant in population databases, with high coverage

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

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRDM16	NM_022114.4	MANE Select	c.3498C>G	p.Ala1166Ala	synonymous	Exon 15 of 17	NP_071397.3
	PRDM16	NM_199454.3		c.3498C>G	p.Ala1166Ala	synonymous	Exon 15 of 17	NP_955533.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRDM16	ENST00000270722.10	TSL:1 MANE Select	c.3498C>G	p.Ala1166Ala	synonymous	Exon 15 of 17	ENSP00000270722.5
	PRDM16	ENST00000378391.6	TSL:1	c.3498C>G	p.Ala1166Ala	synonymous	Exon 15 of 17	ENSP00000367643.2
	PRDM16	ENST00000512462.5	TSL:1	n.3276C>G		non_coding_transcript_exon	Exon 14 of 16

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 7.15e-7 AC: 1 AN: 1399364 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 690492

African (AFR) AF: 0.00 AC: 0 AN: 31728

American (AMR) AF: 0.00 AC: 0 AN: 35816

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25176

East Asian (EAS) AF: 0.00 AC: 0 AN: 36014

South Asian (SAS) AF: 0.00 AC: 0 AN: 79356

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 48980

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4368

European-Non Finnish (NFE) AF: 9.26e-7 AC: 1 AN: 1079980

Other (OTH) AF: 0.00 AC: 0 AN: 57946

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.61
CADD	Benign	12
DANN	Benign	0.46
PhyloP100		0.071
Mutation Taster		=100/0	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.37		Details are displayed if max score is > 0.2
DS_DG_spliceai		0.37		Position offset: 0

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

Other links and lift over

dbSNP: rs368383914; hg19: chr1-3347649;