NM_152594.3:c.287A>G

Variant names:

• chr15-38322320-A-G
• rs1555391039
• NM_152594.3:c.287A>G

Variant summary

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

The NM_152594.3(SPRED1):​c.287A>G​(p.Asp96Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,634 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: SPRED1 NM_152594.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.49

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 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 rank	MANE	Protein	UniProt
SPRED1	NM_152594.3	c.287A>G	p.Asp96Gly	missense_variant	Exon 3 of 7	ENST00000299084.9	NP_689807.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SPRED1	ENST00000299084.9	c.287A>G	p.Asp96Gly	missense_variant	Exon 3 of 7	1	NM_152594.3	ENSP00000299084.4
SPRED1	ENST00000561317.1	c.224A>G	p.Asp75Gly	missense_variant	Exon 4 of 6	4		ENSP00000453680.1
SPRED1	ENST00000561205.1	n.625A>G		non_coding_transcript_exon_variant	Exon 3 of 5	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1461634 Hom.: 0 Cov.: 29 AF XY: 0.00000275 AC XY: 2 AN XY: 727126

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000270

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Legius syndrome Uncertain:1

Feb 29, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces aspartic acid, which is acidic and polar, with glycine, which is neutral and non-polar, at codon 96 of the SPRED1 protein (p.Asp96Gly). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with SPRED1-related conditions. ClinVar contains an entry for this variant (Variation ID: 536692). Advanced modeling performed at Invitae incorporating data from internal and/or published experimental studies (Invitae) indicates that this missense variant is not expected to disrupt SPRED1 function with a negative predictive value of 95%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.24
BayesDel_addAF	Uncertain	0.13	D
BayesDel_noAF	Uncertain	-0.050
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.87	D;D
Eigen	Uncertain	0.44
Eigen_PC	Uncertain	0.53
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.95	D;D
M_CAP	Benign	0.073	D
MetaRNN	Uncertain	0.67	D;D
MetaSVM	Uncertain	0.025	D
MutationAssessor	Uncertain	2.4	M;.
PrimateAI	Uncertain	0.66	T
PROVEAN	Uncertain	-3.3	D;D
REVEL	Uncertain	0.53
Sift	Benign	0.042	D;D
Sift4G	Uncertain	0.020	D;D
Polyphen		0.87	P;.
Vest4		0.49
MutPred		0.48		Loss of ubiquitination at K97 (P = 0.0384);.;
MVP		0.74
MPC		1.0
ClinPred		0.98	D
GERP RS		5.7
Varity_R		0.58
gMVP		0.69

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		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: rs1555391039; hg19: chr15-38614521; COSMIC: COSV54438715;