NM_152594.3:c.1_2delAT

Variant names:

• chr15-38253185-GAT-G
• rs1555386649
• NM_152594.3:c.1_2delAT

Variant summary

Our verdict is Pathogenic. The variant received 14 ACMG points: 14P and 0B. PVS1 PS1_Moderate PM2 PP5_Moderate

The NM_152594.3(SPRED1):​c.1_2delAT​(p.Met1fs) variant causes a frameshift, start lost change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★).

• Frequency: Genomes: not found (cov: 31)
• Consequence: SPRED1 NM_152594.3 frameshift, start_lost
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 6.46
• Publications: 0 publications found

Genes affected

SPRED1 (HGNC:20249): (sprouty related EVH1 domain containing 1) The protein encoded by this gene is a member of the Sprouty family of proteins and is phosphorylated by tyrosine kinase in response to several growth factors. The encoded protein can act as a homodimer or as a heterodimer with SPRED2 to regulate activation of the MAP kinase cascade. Defects in this gene are a cause of neurofibromatosis type 1-like syndrome (NFLS). [provided by RefSeq, Jul 2008]

SPRED1 Gene-Disease associations (from GenCC):

• Legius syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Genomics England PanelApp, G2P, Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics, PanelApp Australia

ENSG00000310144 (HGNC:):

ACMG classification

Our verdict: Pathogenic. The variant received 14 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. There are 141 pathogenic variants in the truncated region.
• PS1: Another start lost variant in NM_152594.3 (SPRED1) was described as [Likely_pathogenic] in ClinVar
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 15-38253185-GAT-G is Pathogenic according to our data. Variant chr15-38253185-GAT-G is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 547788.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_152594.3. 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
	SPRED1	NM_152594.3	MANE Select	c.1_2delAT	p.Met1fs	frameshift start_lost	Exon 1 of 7	NP_689807.1	Q7Z699

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SPRED1	ENST00000299084.9	TSL:1 MANE Select	c.1_2delAT	p.Met1fs	frameshift start_lost	Exon 1 of 7	ENSP00000299084.4	Q7Z699
	SPRED1	ENST00000881380.1		c.1_2delAT	p.Met1fs	frameshift start_lost	Exon 1 of 8	ENSP00000551439.1
	SPRED1	ENST00000951939.1		c.1_2delAT	p.Met1fs	frameshift start_lost	Exon 1 of 8	ENSP00000621998.1

Frequencies

GnomAD3 genomes Cov.: 31

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

GnomAD4 genome Cov.: 31

ClinVar

ClinVar submissions

Significance: Likely pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	Legius syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		6.5

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs1555386649; hg19: chr15-38545386;