3-49417897-C-T

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BA1

The NM_000481.4(AMT):​c.954G>A​(p.Arg318=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.297 in 1,613,826 control chromosomes in the GnomAD database, including 75,268 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.28 ( 6559 hom., cov: 31)
Exomes 𝑓: 0.30 ( 68709 hom. )

Consequence

AMT
NM_000481.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:10

Conservation

PhyloP100: 0.891
Variant links:
Genes affected
AMT (HGNC:473): (aminomethyltransferase) This gene encodes one of four critical components of the glycine cleavage system. Mutations in this gene have been associated with glycine encephalopathy. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2011]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.28).
BP6
Variant 3-49417897-C-T is Benign according to our data. Variant chr3-49417897-C-T is described in ClinVar as [Benign]. Clinvar id is 256240.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr3-49417897-C-T is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=0.891 with no splicing effect.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.303 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
AMTNM_000481.4 linkuse as main transcriptc.954G>A p.Arg318= synonymous_variant 8/9 ENST00000273588.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
AMTENST00000273588.9 linkuse as main transcriptc.954G>A p.Arg318= synonymous_variant 8/91 NM_000481.4 P1P48728-1

Frequencies

GnomAD3 genomes
AF:
0.281
AC:
42689
AN:
151924
Hom.:
6557
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.235
Gnomad AMI
AF:
0.199
Gnomad AMR
AF:
0.216
Gnomad ASJ
AF:
0.461
Gnomad EAS
AF:
0.0584
Gnomad SAS
AF:
0.225
Gnomad FIN
AF:
0.472
Gnomad MID
AF:
0.316
Gnomad NFE
AF:
0.306
Gnomad OTH
AF:
0.288
GnomAD3 exomes
AF:
0.276
AC:
69306
AN:
251004
Hom.:
11201
AF XY:
0.280
AC XY:
38047
AN XY:
135770
show subpopulations
Gnomad AFR exome
AF:
0.235
Gnomad AMR exome
AF:
0.154
Gnomad ASJ exome
AF:
0.456
Gnomad EAS exome
AF:
0.0558
Gnomad SAS exome
AF:
0.236
Gnomad FIN exome
AF:
0.465
Gnomad NFE exome
AF:
0.312
Gnomad OTH exome
AF:
0.302
GnomAD4 exome
AF:
0.298
AC:
435990
AN:
1461786
Hom.:
68709
Cov.:
39
AF XY:
0.297
AC XY:
216045
AN XY:
727192
show subpopulations
Gnomad4 AFR exome
AF:
0.235
Gnomad4 AMR exome
AF:
0.161
Gnomad4 ASJ exome
AF:
0.455
Gnomad4 EAS exome
AF:
0.0630
Gnomad4 SAS exome
AF:
0.243
Gnomad4 FIN exome
AF:
0.454
Gnomad4 NFE exome
AF:
0.307
Gnomad4 OTH exome
AF:
0.300
GnomAD4 genome
AF:
0.281
AC:
42703
AN:
152040
Hom.:
6559
Cov.:
31
AF XY:
0.284
AC XY:
21086
AN XY:
74286
show subpopulations
Gnomad4 AFR
AF:
0.235
Gnomad4 AMR
AF:
0.216
Gnomad4 ASJ
AF:
0.461
Gnomad4 EAS
AF:
0.0587
Gnomad4 SAS
AF:
0.226
Gnomad4 FIN
AF:
0.472
Gnomad4 NFE
AF:
0.306
Gnomad4 OTH
AF:
0.286
Alfa
AF:
0.299
Hom.:
15254
Bravo
AF:
0.258
Asia WGS
AF:
0.143
AC:
503
AN:
3478
EpiCase
AF:
0.317
EpiControl
AF:
0.311

ClinVar

Significance: Benign
Submissions summary: Benign:10
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Non-ketotic hyperglycinemia Benign:6
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 10, 2021- -
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -
Benign, no assertion criteria providedclinical testingNatera, Inc.Nov 20, 2019- -
Benign, criteria provided, single submitterclinical testingGenome Diagnostics Laboratory, University Medical Center UtrechtNov 14, 2016- -
Benign, no assertion criteria providedclinical testingDiagnostic Laboratory, Department of Genetics, University Medical Center Groningen-- -
not specified Benign:2
Benign, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpJul 26, 2020- -
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxJul 22, 2019This variant is associated with the following publications: (PMID: 28502726, 12948742, 22171071) -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.28
CADD
Benign
11
DANN
Benign
0.86
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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

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

Other links and lift over

dbSNP: rs11715915; hg19: chr3-49455330; COSMIC: COSV55533942; COSMIC: COSV55533942; API