rs7760250

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBA1

The NM_018960.6(GNMT):​c.207-111G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.521 in 1,237,874 control chromosomes in the GnomAD database, including 174,106 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.56 ( 24780 hom., cov: 31)
Exomes 𝑓: 0.52 ( 149326 hom. )

Consequence

GNMT
NM_018960.6 intron

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0140
Variant links:
Genes affected
GNMT (HGNC:4415): (glycine N-methyltransferase) The protein encoded by this gene is an enzyme that catalyzes the conversion of S-adenosyl-L-methionine (along with glycine) to S-adenosyl-L-homocysteine and sarcosine. This protein is found in the cytoplasm and acts as a homotetramer. Defects in this gene are a cause of GNMT deficiency (hypermethioninemia). Alternative splicing results in multiple transcript variants. Naturally occurring readthrough transcription occurs between the upstream CNPY3 (canopy FGF signaling regulator 3) gene and this gene and is represented with GeneID:107080644. [provided by RefSeq, Jan 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 6-42962101-G-A is Benign according to our data. Variant chr6-42962101-G-A is described in ClinVar as [Benign]. Clinvar id is 1230082.Status of the report is criteria_provided_single_submitter, 1 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.72 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GNMTNM_018960.6 linkuse as main transcriptc.207-111G>A intron_variant ENST00000372808.4 NP_061833.1
CNPY3-GNMTNR_134890.2 linkuse as main transcriptn.340-661G>A intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GNMTENST00000372808.4 linkuse as main transcriptc.207-111G>A intron_variant 1 NM_018960.6 ENSP00000361894 P1

Frequencies

GnomAD3 genomes
AF:
0.557
AC:
84535
AN:
151790
Hom.:
24743
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.727
Gnomad AMI
AF:
0.670
Gnomad AMR
AF:
0.418
Gnomad ASJ
AF:
0.466
Gnomad EAS
AF:
0.182
Gnomad SAS
AF:
0.492
Gnomad FIN
AF:
0.465
Gnomad MID
AF:
0.503
Gnomad NFE
AF:
0.536
Gnomad OTH
AF:
0.550
GnomAD4 exome
AF:
0.516
AC:
560608
AN:
1085966
Hom.:
149326
AF XY:
0.518
AC XY:
287254
AN XY:
554710
show subpopulations
Gnomad4 AFR exome
AF:
0.730
Gnomad4 AMR exome
AF:
0.334
Gnomad4 ASJ exome
AF:
0.466
Gnomad4 EAS exome
AF:
0.206
Gnomad4 SAS exome
AF:
0.521
Gnomad4 FIN exome
AF:
0.454
Gnomad4 NFE exome
AF:
0.538
Gnomad4 OTH exome
AF:
0.514
GnomAD4 genome
AF:
0.557
AC:
84624
AN:
151908
Hom.:
24780
Cov.:
31
AF XY:
0.548
AC XY:
40692
AN XY:
74256
show subpopulations
Gnomad4 AFR
AF:
0.727
Gnomad4 AMR
AF:
0.418
Gnomad4 ASJ
AF:
0.466
Gnomad4 EAS
AF:
0.182
Gnomad4 SAS
AF:
0.491
Gnomad4 FIN
AF:
0.465
Gnomad4 NFE
AF:
0.536
Gnomad4 OTH
AF:
0.546
Alfa
AF:
0.553
Hom.:
2964
Bravo
AF:
0.561
Asia WGS
AF:
0.352
AC:
1228
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxMay 12, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
3.8
DANN
Benign
0.67

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: rs7760250; hg19: chr6-42929839; COSMIC: COSV55106437; COSMIC: COSV55106437; API