rs1057519744

Variant names:

• chr5-171410542-T-TCATG
• rs1057519744
• NM_002520.7:c.862_863insCATG

Your query was ambiguous. Multiple possible variants found:

• chr5-171410542-T-TCATG
• chr5-171410542-T-TCCTG
• chr5-171410542-T-TTCAG
• chr5-171410542-T-TTCTG

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PVS1_Moderate PM2

The NM_002520.7(NPM1):​c.862_863insCATG​(p.Trp288SerfsTer12) variant causes a frameshift change. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: NPM1 NM_002520.7 frameshift
• Clinical Significance: Likely pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 6.09

Genes affected

NPM1 (HGNC:7910): (nucleophosmin 1) The protein encoded by this gene is involved in several cellular processes, including centrosome duplication, protein chaperoning, and cell proliferation. The encoded phosphoprotein shuttles between the nucleolus, nucleus, and cytoplasm, chaperoning ribosomal proteins and core histones from the nucleus to the cytoplasm. This protein is also known to sequester the tumor suppressor ARF in the nucleolus, protecting it from degradation until it is needed. Mutations in this gene are associated with acute myeloid leukemia. Dozens of pseudogenes of this gene have been identified. [provided by RefSeq, Aug 2017]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.0249 CDS is truncated, and there are 1 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NPM1	NM_002520.7	c.862_863insCATG	p.Trp288SerfsTer12	frameshift_variant	Exon 11 of 11	ENST00000296930.10	NP_002511.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NPM1	ENST00000296930.10	c.862_863insCATG	p.Trp288SerfsTer12	frameshift_variant	Exon 11 of 11	1	NM_002520.7	ENSP00000296930.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 26

GnomAD4 genome Cov.: 33

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Acute myeloid leukemia Pathogenic:1

Oct 02, 2014

Database of Curated Mutations (DoCM)

Significance: Likely pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

- -

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: rs1057519744; hg19: chr5-170837546;