rs2273026

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBA1

The ENST00000316694.8(SHMT1):​c.242+7G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.112 in 1,613,322 control chromosomes in the GnomAD database, including 10,996 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.11 ( 990 hom., cov: 32)
Exomes 𝑓: 0.11 ( 10006 hom. )

Consequence

SHMT1
ENST00000316694.8 splice_region, intron

Scores

2
Splicing: ADA: 0.00003110
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.96
Variant links:
Genes affected
SHMT1 (HGNC:10850): (serine hydroxymethyltransferase 1) This gene encodes the cytosolic form of serine hydroxymethyltransferase, a pyridoxal phosphate-containing enzyme that catalyzes the reversible conversion of serine and tetrahydrofolate to glycine and 5,10-methylene tetrahydrofolate. This reaction provides one-carbon units for synthesis of methionine, thymidylate, and purines in the cytoplasm. This gene is located within the Smith-Magenis syndrome region on chromosome 17. A pseudogene of this gene is located on the short arm of chromosome 1. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2013]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.172 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SHMT1NM_004169.5 linkuse as main transcriptc.242+7G>A splice_region_variant, intron_variant ENST00000316694.8 NP_004160.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SHMT1ENST00000316694.8 linkuse as main transcriptc.242+7G>A splice_region_variant, intron_variant 1 NM_004169.5 ENSP00000318868 P1P34896-1

Frequencies

GnomAD3 genomes
AF:
0.108
AC:
16408
AN:
151988
Hom.:
992
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0882
Gnomad AMI
AF:
0.0725
Gnomad AMR
AF:
0.160
Gnomad ASJ
AF:
0.0776
Gnomad EAS
AF:
0.161
Gnomad SAS
AF:
0.183
Gnomad FIN
AF:
0.0952
Gnomad MID
AF:
0.0696
Gnomad NFE
AF:
0.103
Gnomad OTH
AF:
0.114
GnomAD3 exomes
AF:
0.122
AC:
30730
AN:
251438
Hom.:
2134
AF XY:
0.123
AC XY:
16650
AN XY:
135902
show subpopulations
Gnomad AFR exome
AF:
0.0901
Gnomad AMR exome
AF:
0.193
Gnomad ASJ exome
AF:
0.0811
Gnomad EAS exome
AF:
0.140
Gnomad SAS exome
AF:
0.178
Gnomad FIN exome
AF:
0.0952
Gnomad NFE exome
AF:
0.0973
Gnomad OTH exome
AF:
0.101
GnomAD4 exome
AF:
0.112
AC:
163481
AN:
1461216
Hom.:
10006
Cov.:
31
AF XY:
0.114
AC XY:
82916
AN XY:
726962
show subpopulations
Gnomad4 AFR exome
AF:
0.0894
Gnomad4 AMR exome
AF:
0.187
Gnomad4 ASJ exome
AF:
0.0820
Gnomad4 EAS exome
AF:
0.178
Gnomad4 SAS exome
AF:
0.180
Gnomad4 FIN exome
AF:
0.0992
Gnomad4 NFE exome
AF:
0.103
Gnomad4 OTH exome
AF:
0.110
GnomAD4 genome
AF:
0.108
AC:
16405
AN:
152106
Hom.:
990
Cov.:
32
AF XY:
0.111
AC XY:
8278
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.0880
Gnomad4 AMR
AF:
0.161
Gnomad4 ASJ
AF:
0.0776
Gnomad4 EAS
AF:
0.161
Gnomad4 SAS
AF:
0.182
Gnomad4 FIN
AF:
0.0952
Gnomad4 NFE
AF:
0.103
Gnomad4 OTH
AF:
0.113
Alfa
AF:
0.105
Hom.:
834
Bravo
AF:
0.108
Asia WGS
AF:
0.148
AC:
513
AN:
3478
EpiCase
AF:
0.0960
EpiControl
AF:
0.0927

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
CADD
Benign
7.7
DANN
Benign
0.54
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000031
dbscSNV1_RF
Benign
0.060
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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs2273026; hg19: chr17-18256979; COSMIC: COSV57399005; COSMIC: COSV57399005; API