14-20990357-C-G

Variant summary

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

The ENST00000339374.11(METTL17):ā€‹c.203C>Gā€‹(p.Ala68Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,461,864 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0000048 ( 0 hom. )

Consequence

METTL17
ENST00000339374.11 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.00400
Variant links:
Genes affected
METTL17 (HGNC:19280): (methyltransferase like 17) Predicted to enable S-adenosyl-L-methionine binding activity and mitochondrial ribosome binding activity. Predicted to be involved in ribosomal small subunit biogenesis. Located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

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
METTL17NM_022734.3 linkuse as main transcriptc.203C>G p.Ala68Gly missense_variant 2/14 ENST00000339374.11 NP_073571.1 Q9H7H0-1A0A0S2Z5L8
METTL17NM_001029991.2 linkuse as main transcriptc.203C>G p.Ala68Gly missense_variant 2/13 NP_001025162.1 Q9H7H0-3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
METTL17ENST00000339374.11 linkuse as main transcriptc.203C>G p.Ala68Gly missense_variant 2/141 NM_022734.3 ENSP00000343041.6 Q9H7H0-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251326
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135852
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000173
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000479
AC:
7
AN:
1461864
Hom.:
0
Cov.:
33
AF XY:
0.00000550
AC XY:
4
AN XY:
727234
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000157
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:
0.00
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.0000113
ExAC
AF:
0.0000247
AC:
3

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 GeneticsFeb 22, 2023The c.203C>G (p.A68G) alteration is located in exon 2 (coding exon 2) of the METTL17 gene. This alteration results from a C to G substitution at nucleotide position 203, causing the alanine (A) at amino acid position 68 to be replaced by a glycine (G). 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
0.11
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.61
CADD
Benign
14
DANN
Uncertain
0.98
DEOGEN2
Benign
0.0066
T;.;.;T
Eigen
Benign
-0.78
Eigen_PC
Benign
-0.82
FATHMM_MKL
Benign
0.017
N
LIST_S2
Benign
0.52
T;T;T;T
M_CAP
Benign
0.0091
T
MetaRNN
Benign
0.060
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.2
M;M;M;.
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-1.6
N;N;N;N
REVEL
Benign
0.026
Sift
Benign
0.12
T;T;T;D
Sift4G
Benign
0.14
T;T;T;D
Polyphen
0.020
B;B;B;.
Vest4
0.28
MutPred
0.28
Gain of catalytic residue at P64 (P = 0.0813);Gain of catalytic residue at P64 (P = 0.0813);Gain of catalytic residue at P64 (P = 0.0813);.;
MVP
0.14
MPC
0.29
ClinPred
0.13
T
GERP RS
1.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.11
gMVP
0.25

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.23
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.23
Position offset: -1

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: rs778713008; hg19: chr14-21458516; API