Variant 15-45361984-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001482.3(GATM):c.*125G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00251 in 700,724 control chromosomes in the GnomAD database, including 14 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0069 ( 9 hom., cov: 32)

Exomes 𝑓: 0.0013 ( 5 hom. )

Consequence

GATM
NM_001482.3 3_prime_UTR

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.472

Variant links:

Genes affected

GATM (HGNC:4175): (glycine amidinotransferase) This gene encodes a mitochondrial enzyme that belongs to the amidinotransferase family. This enzyme is involved in creatine biosynthesis, whereby it catalyzes the transfer of a guanido group from L-arginine to glycine, resulting in guanidinoacetic acid, the immediate precursor of creatine. Mutations in this gene cause arginine:glycine amidinotransferase deficiency, an inborn error of creatine synthesis characterized by cognitive disability, language impairment, and behavioral disorders. [provided by RefSeq, Jul 2008]

GATM links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.49).

BP6

Variant 15-45361984-C-T is Benign according to our data. Variant chr15-45361984-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 886212.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00692 (1054/152244) while in subpopulation AFR AF= 0.0224 (930/41536). AF 95% confidence interval is 0.0212. There are 9 homozygotes in gnomad4. There are 467 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 9 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GATM	NM_001482.3 linkuse as main transcript	c.*125G>A		3_prime_UTR_variant	9/9	ENST00000396659.8	NP_001473.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GATM	ENST00000396659.8 linkuse as main transcript	c.*125G>A		3_prime_UTR_variant	9/9	1	NM_001482.3	ENSP00000379895	P1	P50440-1

Frequencies

GnomAD3 genomes

AF:

0.00695

AC:

1057

AN:

152126

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0225

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00491

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00949

Gnomad NFE

AF:

0.000470

Gnomad OTH

AF:

0.00669

GnomAD4 exome

AF:

0.00129

AC:

705

AN:

548480

Hom.:

Cov.:

AF XY:

0.00106

AC XY:

312

AN XY:

294938

show subpopulations

Gnomad4 AFR exome

AF:

0.0247

Gnomad4 AMR exome

AF:

0.00272

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000648

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000362

Gnomad4 OTH exome

AF:

0.00329

GnomAD4 genome

AF:

0.00692

AC:

1054

AN:

152244

Hom.:

Cov.:

AF XY:

0.00627

AC XY:

467

AN XY:

74442

show subpopulations

Gnomad4 AFR

AF:

0.0224

Gnomad4 AMR

AF:

0.00491

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000471

Gnomad4 OTH

AF:

0.00662

Alfa

AF:

0.00516

Hom.:

Bravo

AF:

0.00787

Asia WGS

AF:

0.00144

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Jul 09, 2018

- -

Arginine:glycine amidinotransferase deficiency

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.49

CADD

Benign

4.4

DANN

Benign

0.58

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over