1-3186135-C-G

Variant names:

• chr1-3186135-C-G
• rs755458264
• NM_022114.4:c.48C>G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_022114.4(PRDM16):​c.48C>G​(p.Asp16Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,044 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict 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. D16D) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: PRDM16 NM_022114.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.96

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 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.0789161).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PRDM16	NM_022114.4	c.48C>G	p.Asp16Glu	missense_variant	Exon 2 of 17	ENST00000270722.10	NP_071397.3
PRDM16	NM_199454.3	c.48C>G	p.Asp16Glu	missense_variant	Exon 2 of 17		NP_955533.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PRDM16	ENST00000270722.10	c.48C>G	p.Asp16Glu	missense_variant	Exon 2 of 17	1	NM_022114.4	ENSP00000270722.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.00000407 AC: 1 AN: 245570 Hom.: 0 AF XY: 0.00000745 AC XY: 1 AN XY: 134296

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000327

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460044 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 726372

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ExAC AF: 0.00000826 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.39	T
BayesDel_noAF	Benign	-0.70
CADD	Benign	20
DANN	Benign	0.95
DEOGEN2	Benign	0.0037	T;.;.;T
Eigen	Benign	-0.26
Eigen_PC	Benign	-0.049
FATHMM_MKL	Benign	0.47	N
LIST_S2	Benign	0.60	T;T;T;T
M_CAP	Benign	0.0066	T
MetaRNN	Benign	0.079	T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.71	.;N;.;N
PrimateAI	Uncertain	0.69	T
PROVEAN	Benign	-0.64	N;N;N;N
REVEL	Benign	0.040
Sift	Benign	0.36	T;T;T;T
Sift4G	Benign	0.98	T;T;T;T
Polyphen		0.039, 0.023	.;B;.;B
Vest4		0.19
MutPred		0.12		Loss of helix (P = 0.0444);Loss of helix (P = 0.0444);Loss of helix (P = 0.0444);Loss of helix (P = 0.0444);
MVP		0.41
MPC		0.33
ClinPred		0.21	T
GERP RS		4.0
Varity_R		0.061
gMVP		0.10

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

Publications

LitVar

Other links and lift over

dbSNP: rs755458264; hg19: chr1-3102699;