2-169821087-C-T

Position:

• chr2-169821087-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_014168.4(METTL5):​c.406+5G>A variant causes a splice region, intron change. The variant allele was found at a frequency of 0.000000704 in 1,421,190 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.0e-7 (0 hom.)
• Consequence: METTL5 NM_014168.4 splice_region, intron
• Scores: Splicing: ADA: 0.9999
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.85

Genes affected

METTL5 (HGNC:25006): (methyltransferase 5, N6-adenosine) Enables S-adenosyl-L-methionine binding activity and rRNA (adenine-N6-)-methyltransferase activity. Involved in positive regulation of translation and rRNA methylation. Located in nucleus; postsynapse; and presynapse. Implicated in autosomal recessive intellectual developmental disorder-72. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
METTL5	NM_014168.4	c.406+5G>A		splice_region_variant, intron_variant		ENST00000260953.10	NP_054887.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
METTL5	ENST00000260953.10	c.406+5G>A		splice_region_variant, intron_variant		1	NM_014168.4	ENSP00000260953.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 7.04e-7 AC: 1 AN: 1421190 Hom.: 0 Cov.: 30 AF XY: 0.00000142 AC XY: 1 AN XY: 706464

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.0000170

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Intellectual developmental disorder, autosomal recessive 72 Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Suma Genomics

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.31
CADD	Benign	17
DANN	Benign	0.92

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	1.0
dbscSNV1_RF	Pathogenic	0.92
SpliceAI score (max)		0.71		Details are displayed if max score is > 0.2
DS_DL_spliceai		0.71		Position offset: 5

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-170677597;