rs1553176630

Positions:

• chr1-3412016-GTCAA-TTCAT

Variant summary

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

The NM_022114.4(PRDM16):​c.1819_1823delGTCAAinsTTCAT​(p.ValAsn607PheIle) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: PRDM16 NM_022114.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.25

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 (HGNC:):

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/exons	MANE	Protein	UniProt
PRDM16	NM_022114.4	c.1819_1823delGTCAAinsTTCAT	p.ValAsn607PheIle	missense_variant		ENST00000270722.10	NP_071397.3
PRDM16	NM_199454.3	c.1819_1823delGTCAAinsTTCAT	p.ValAsn607PheIle	missense_variant			NP_955533.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PRDM16	ENST00000270722.10	c.1819_1823delGTCAAinsTTCAT	p.ValAsn607PheIle	missense_variant		1	NM_022114.4	ENSP00000270722.5

Frequencies

GnomAD3 genomes Cov.: 33

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Left ventricular noncompaction 8 Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jul 04, 2019

In summary, this variant has uncertain impact on PRDM16 function. The available evidence is currently insufficient to determine its role in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Experimental studies and prediction algorithms are not available for this variant, and the functional significance of the deleted and inserted amino acids is currently unknown. This variant has not been reported in the literature in individuals with a PRDM16-related disease. This variant is not present in population databases (ExAC no frequency). This variant, c.1819_1823delinsTTCAT, is a complex sequence change that deletes five nucleotides and inserts five nucleotides resulting in the deletion of valine and asparagine and the insertion of phenylalanine and isoleucine in the PRDM16 protein (p.Val607_Asn608delinsPheIle). -

Computational scores

Source: dbNSFP v4.3

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs1553176630; hg19: chr1-3328580;