2-169815974-G-C

Variant names:

• chr2-169815974-G-C
• rs7589845
• NM_014168.4:c.490-446C>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_014168.4(METTL5):​c.490-446C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000658 in 151,932 control chromosomes in the GnomAD database, with no homozygous occurrence. 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: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: METTL5 NM_014168.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.797
• Publications: 4 publications found

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]

METTL5 Gene-Disease associations (from GenCC):

• intellectual developmental disorder, autosomal recessive 72

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
• autosomal recessive primary microcephaly

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.97).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014168.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	METTL5	NM_014168.4	MANE Select	c.490-446C>G		intron	N/A	NP_054887.2	Q9NRN9
	METTL5	NM_001293186.2		c.490-446C>G		intron	N/A	NP_001280115.1	Q9NRN9
	METTL5	NM_001293187.2		c.490-446C>G		intron	N/A	NP_001280116.1	Q9NRN9

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	METTL5	ENST00000260953.10	TSL:1 MANE Select	c.490-446C>G		intron	N/A	ENSP00000260953.5	Q9NRN9
	METTL5	ENST00000392640.6	TSL:1	c.490-446C>G		intron	N/A	ENSP00000376415.2	Q9NRN9
	METTL5	ENST00000409965.5	TSL:1	c.490-446C>G		intron	N/A	ENSP00000386582.1	Q9NRN9

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 151932 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000655

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

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

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 151932 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74168

African (AFR) AF: 0.00 AC: 0 AN: 41368

American (AMR) AF: 0.0000655 AC: 1 AN: 15256

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3466

East Asian (EAS) AF: 0.00 AC: 0 AN: 5168

South Asian (SAS) AF: 0.00 AC: 0 AN: 4814

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10550

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67994

Other (OTH) AF: 0.00 AC: 0 AN: 2088

Alfa AF: 0.00 Hom.: 246

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.97
CADD	Benign	0.36
DANN	Benign	0.49
PhyloP100		-0.80

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

Other links and lift over

dbSNP: rs7589845; hg19: chr2-170672484;