rs373384814

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_152594.3(SPRED1):c.446G>A(p.Ser149Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000353 in 1,613,876 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S149G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00037 ( 7 hom. )

Consequence

SPRED1
NM_152594.3 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 2.50

Publications

2 publications found

Variant links:

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: Orphanet, Ambry Genetics, Genomics England PanelApp, ClinGen, PanelApp Australia, G2P, Labcorp Genetics (formerly Invitae)

SPRED1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0063229203).

BP6

Variant 15-38339759-G-A is Benign according to our data. Variant chr15-38339759-G-A is described in ClinVar as Benign. ClinVar VariationId is 468798.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000171 (26/152286) while in subpopulation SAS AF = 0.00497 (24/4830). AF 95% confidence interval is 0.00343. There are 0 homozygotes in GnomAd4. There are 18 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 26 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SPRED1	NM_152594.3 link	c.446G>A	p.Ser149Asn	missense_variant	Exon 5 of 7	ENST00000299084.9	NP_689807.1	Q7Z699

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SPRED1	ENST00000299084.9 link	c.446G>A	p.Ser149Asn	missense_variant	Exon 5 of 7	1	NM_152594.3	ENSP00000299084.4		Q7Z699
SPRED1	ENST00000561317.1 link	c.383G>A	p.Ser128Asn	missense_variant	Exon 6 of 6	4		ENSP00000453680.1		H0YMN8

Frequencies

GnomAD3 genomes

AF:

0.000171

AC:

AN:

152168

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00496

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000825

AC:

207

AN:

250830

AF XY:

0.00109

show subpopulations

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.000327

GnomAD4 exome

AF:

0.000372

AC:

543

AN:

1461590

Hom.:

Cov.:

AF XY:

0.000525

AC XY:

382

AN XY:

727084

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33462

American (AMR)

AF:

0.00

AC:

AN:

44702

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26126

East Asian (EAS)

AF:

0.00

AC:

AN:

39642

South Asian (SAS)

AF:

0.00573

AC:

494

AN:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53392

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00000989

AC:

AN:

1111874

Other (OTH)

AF:

0.000596

AC:

AN:

60376

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.461

Heterozygous variant carriers

126

157

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000171

AC:

AN:

152286

Hom.:

Cov.:

AF XY:

0.000242

AC XY:

AN XY:

74466

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41562

American (AMR)

AF:

0.00

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5176

South Asian (SAS)

AF:

0.00497

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68016

Other (OTH)

AF:

0.000473

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.485

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000554

Hom.:

Bravo

AF:

0.0000378

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000931

AC:

113

Asia WGS

AF:

0.00375

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

Aug 03, 2021

Genetic Services Laboratory, University of Chicago

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Feb 01, 2018

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Legius syndrome

Benign:2

Jan 21, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jul 07, 2023

KCCC/NGS Laboratory, Kuwait Cancer Control Center

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:1

Apr 17, 2017

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: The SPRED1 c.446G>A (p.Ser149Asn) variant involves the alteration of a conserved nucleotide. The variant lies within the WH1/EVH1 domain and the PH domain-like domain (InterPro). 4/4 in silico tools predict a benign outcome for this variant (SNPs&GO not captured due to low reliability index). This variant was found in the large control database ExAC in 113/123230 control chromosomes of all ethnicities, but was predominantly observed in the South Asian subpopulation at a frequency of 0.006663 (110/16510 with 3 homozygotes). This frequency is about 2665 times the estimated maximal expected allele frequency of a pathogenic SPRED1 variant (0.0000025), providing strong evidence that this is likely a benign polymorphism found primarily in the populations of South Asian origin. Two studies identified the variant in patient cohorts, one of which identified an unaffected father of the proband carrying the variant, showing lack of cosegregation (Messiaen_JAMA_2009). Additionally, functional studies that measured inhibition of MEK, ERK activation, FGF-induced Elk1 activation, Raf1 kinase activity and phosphorylation, and effect this variant on differentiation of PC12 cells show that this variant behaves similar to the WT control, in contrary to several truncating mutations also tested, suggesting the variant has no significant functional effect (Brems_Nat Genet_2007, Messiaen_JAMA_2009). Taken together, this variant is classified as benign. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.080

BayesDel_addAF

Benign

-0.41

BayesDel_noAF

Benign

-0.36

CADD

Benign

(source)

DANN

Benign

0.97

DEOGEN2

Benign

0.19

T;T

Eigen

Benign

-0.18

Eigen_PC

Benign

-0.056

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.61

T;T

MetaRNN

Benign

0.0063

T;T

MetaSVM

Benign

-0.80

MutationAssessor

Uncertain

2.5

M;.

PhyloP100

2.5

PrimateAI

Benign

0.34

PROVEAN

Benign

-1.1

N;N

REVEL

Benign

0.19

Sift

Benign

0.27

T;D

Sift4G

Benign

0.17

T;T

Polyphen

0.0010

B;.

Vest4

0.29

MVP

0.72

MPC

0.32

ClinPred

0.040

GERP RS

3.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.097

gMVP

0.34

Mutation Taster

=92/8

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.080

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over