15-38253211-A-T
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.26A>T(p.Asp9Val) variant causes a missense change. The variant allele was found at a frequency of 0.0003 in 1,578,420 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D9N) has been classified as Uncertain significance.
Frequency
Consequence
NM_152594.3 missense
Scores
Clinical Significance
Conservation
Publications
- Legius syndromeInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, Genomics England PanelApp, ClinGen, PanelApp Australia, G2P, Labcorp Genetics (formerly Invitae)
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ACMG classification
Our verdict: Benign. The variant received -20 ACMG points.
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
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| SPRED1 | NM_152594.3 | MANE Select | c.26A>T | p.Asp9Val | missense | Exon 1 of 7 | NP_689807.1 |
Ensembl Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| SPRED1 | ENST00000299084.9 | TSL:1 MANE Select | c.26A>T | p.Asp9Val | missense | Exon 1 of 7 | ENSP00000299084.4 | ||
| SPRED1 | ENST00000561205.1 | TSL:5 | n.364A>T | non_coding_transcript_exon | Exon 1 of 5 | ||||
| SPRED1 | ENST00000561317.1 | TSL:4 | c.-102A>T | 5_prime_UTR | Exon 1 of 6 | ENSP00000453680.1 |
Frequencies
GnomAD3 genomes AF: 0.000257 AC: 39AN: 152046Hom.: 0 Cov.: 31 show subpopulations
GnomAD2 exomes AF: 0.000680 AC: 133AN: 195612 AF XY: 0.000786 show subpopulations
GnomAD4 exome AF: 0.000304 AC: 434AN: 1426256Hom.: 2 Cov.: 31 AF XY: 0.000373 AC XY: 263AN XY: 705918 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000256 AC: 39AN: 152164Hom.: 0 Cov.: 31 AF XY: 0.000350 AC XY: 26AN XY: 74382 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not specified Benign:2
p.Asp9Val in exon 1 of SPRED1: This variant is classified as benign because it h as been identified in 0.5% (49/9150) of Ashkenazi Jewish chromosomes by the Geno me Aggregation Database (gnomAD, http://gnomad.broadinstitute.org; dbSNP rs20015 7475). ACMG/AMP criteria applied: BA1.
Variant summary: SPRED1 c.26A>T (p.Asp9Val) results in a non-conservative amino acid change located in the WH1/EVH1 domain (IPR000697) of the encoded protein sequence. Three of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00068 in 195612 control chromosomes, predominantly at a frequency of 0.0025 within the South Asian subpopulation in the gnomAD database. The observed variant frequency within South Asian control individuals in the gnomAD database is approximately 1000 fold of the estimated maximal expected allele frequency for a pathogenic variant in SPRED1 causing Noonan Syndrome and Related Conditions phenotype (2.5e-06), strongly suggesting that the variant is a benign polymorphism found primarily in populations of South Asian origin. To our knowledge, no experimental evidence demonstrating its impact on protein function have been reported. Co-occurrence with another pathogenic variant has been internally reported (PTPN11 c.172A>T, p.Asn58Tyr), providing supporting evidence for a benign role. Four ClinVar submitters (evaluation after 2014) cites the variant as uncertain significance (1x), likely benign (1x) and benign (2x). Based on the evidence outlined above, the variant was classified as benign.
not provided Benign:2
This variant is associated with the following publications: (PMID: 26635368, 22753041, 31401120)
SPRED1: BS1
SPRED1-related disorder Benign:1
This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications).
Legius syndrome Benign:1
Cardiovascular phenotype Benign:1
This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.
Noonan syndrome and Noonan-related syndrome Benign:1
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at