ENST00000458245.5:n.641-272A>T

Variant names:

• chr15-45380831-T-A
• rs1346268
• ENST00000458245.5:n.641-272A>T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The ENST00000458245.5(GATM):​n.641-272A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 31)
• Consequence: GATM ENST00000458245.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.440

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]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GATM	NM_001321015.2	c.-394-272A>T		intron_variant	Intron 3 of 11		NP_001307944.1
GATM	XM_047432385.1	c.-1056-272A>T		intron_variant	Intron 3 of 12		XP_047288341.1
GATM	XM_047432386.1	c.32-262A>T		intron_variant	Intron 3 of 11		XP_047288342.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GATM	ENST00000458245.5	n.641-272A>T		intron_variant	Intron 3 of 4	1
GATM	ENST00000561148.5	c.-318-4012A>T		intron_variant	Intron 3 of 4	5		ENSP00000453860.1
GATM	ENST00000527933.2	n.513-272A>T		intron_variant	Intron 2 of 2	4
GATM	ENST00000560538.1	n.339-4012A>T		intron_variant	Intron 1 of 1	3

Frequencies

GnomAD3 genomes Cov.: 31

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	5.4
DANN	Benign	0.66

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs1346268; hg19: chr15-45673029;