16-8635228-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_024109.4(METTL22):ā€‹c.616G>Cā€‹(p.Gly206Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000206 in 1,459,290 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0000021 ( 0 hom. )

Consequence

METTL22
NM_024109.4 missense

Scores

2
8
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.29
Variant links:
Genes affected
METTL22 (HGNC:28368): (methyltransferase 22, Kin17 lysine) This gene encodes a member of the non-histone lysine methyltransferases. It interacts with its substrate, Kin17, which is involved in DNA repair and replication and mRNA processing. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.789

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
METTL22NM_024109.4 linkuse as main transcriptc.616G>C p.Gly206Arg missense_variant 5/11 ENST00000381920.8 NP_077014.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
METTL22ENST00000381920.8 linkuse as main transcriptc.616G>C p.Gly206Arg missense_variant 5/115 NM_024109.4 ENSP00000371345 P2Q9BUU2-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000121
AC:
3
AN:
247896
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
134554
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000657
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000167
GnomAD4 exome
AF:
0.00000206
AC:
3
AN:
1459290
Hom.:
0
Cov.:
39
AF XY:
0.00
AC XY:
0
AN XY:
725582
show subpopulations
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:
0.0000349
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000827
AC:
1

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMay 28, 2024The c.616G>C (p.G206R) alteration is located in exon 5 (coding exon 4) of the METTL22 gene. This alteration results from a G to C substitution at nucleotide position 616, causing the glycine (G) at amino acid position 206 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.29
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.22
CADD
Uncertain
25
DANN
Benign
0.96
DEOGEN2
Benign
0.014
T;T
Eigen
Uncertain
0.20
Eigen_PC
Benign
0.16
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.88
D;D
M_CAP
Benign
0.026
D
MetaRNN
Pathogenic
0.79
D;D
MetaSVM
Benign
-0.71
T
MutationAssessor
Uncertain
2.8
M;.
MutationTaster
Benign
0.99
D;D
PrimateAI
Uncertain
0.49
T
PROVEAN
Pathogenic
-4.8
D;D
REVEL
Uncertain
0.38
Sift
Uncertain
0.0060
D;D
Sift4G
Uncertain
0.015
D;D
Polyphen
1.0
D;.
Vest4
0.54
MutPred
0.67
Gain of solvent accessibility (P = 0.0306);.;
MVP
0.86
MPC
0.12
ClinPred
0.97
D
GERP RS
3.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.27
gMVP
0.72

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: rs781764421; hg19: chr16-8729085; API