15-38253185-GAT-G

Position:

• chr15-38253185-GAT-G

Variant summary

Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PVS1 PS1_Moderate PM2 PP5_Moderate

The NM_152594.3(SPRED1):​c.1_2del​(p.Met1?) 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

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]

ACMG classification

Verdict is Pathogenic. Variant got 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 39 pathogenic variants in the truncated region.
• PS1: Another start lost variant in NM_152594.3 (SPRED1) was described as [Likely_pathogenic] in Lovd
• 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 id is 547788.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SPRED1	NM_152594.3	c.1_2del	p.Met1?	frameshift_variant, start_lost	1/7	ENST00000299084.9	NP_689807.1
SPRED1	XM_005254202.4	c.1_2del	p.Met1?	frameshift_variant, start_lost	1/8		XP_005254259.1
SPRED1	XM_047432199.1	c.-163_-162del		5_prime_UTR_variant	1/9		XP_047288155.1
SPRED1	XM_047432200.1	c.-127_-126del		5_prime_UTR_variant	1/8		XP_047288156.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SPRED1	ENST00000299084.9	c.1_2del	p.Met1?	frameshift_variant, start_lost	1/7	1	NM_152594.3	ENSP00000299084	P1
SPRED1	ENST00000561317.1	c.-127_-126del		5_prime_UTR_variant	1/6	4		ENSP00000453680
SPRED1	ENST00000561205.1	n.339_340del		non_coding_transcript_exon_variant	1/5	5

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

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Legius syndrome Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Center for Human Genetics, Inc, Center for Human Genetics, Inc

Nov 01, 2016

- -

Computational scores

Source: dbNSFP v4.3

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

Publications

LitVar

Other links and lift over

dbSNP: rs1555386649; hg19: chr15-38545386;