chr18-13731836-A-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_003799.3(RNMT):ā€‹c.319A>Gā€‹(p.Arg107Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000439 in 1,613,520 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.00023 ( 0 hom., cov: 33)
Exomes š‘“: 0.00046 ( 1 hom. )

Consequence

RNMT
NM_003799.3 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.180
Variant links:
Genes affected
RNMT (HGNC:10075): (RNA guanine-7 methyltransferase) Enables RNA binding activity and mRNA (guanine-N7-)-methyltransferase activity. Involved in 7-methylguanosine mRNA capping. Located in fibrillar center and nucleoplasm. Part of mRNA cap binding activity complex; mRNA cap methyltransferase complex; and receptor complex. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

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 (MetaRNN=0.015965194).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
RNMTNM_003799.3 linkuse as main transcriptc.319A>G p.Arg107Gly missense_variant 3/12 ENST00000383314.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
RNMTENST00000383314.7 linkuse as main transcriptc.319A>G p.Arg107Gly missense_variant 3/121 NM_003799.3 P1O43148-1

Frequencies

GnomAD3 genomes
AF:
0.000230
AC:
35
AN:
152246
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000260
AC:
65
AN:
250384
Hom.:
0
AF XY:
0.000288
AC XY:
39
AN XY:
135584
show subpopulations
Gnomad AFR exome
AF:
0.0000626
Gnomad AMR exome
AF:
0.0000871
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:
0.000529
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.000461
AC:
673
AN:
1461156
Hom.:
1
Cov.:
32
AF XY:
0.000435
AC XY:
316
AN XY:
726822
show subpopulations
Gnomad4 AFR exome
AF:
0.0000898
Gnomad4 AMR exome
AF:
0.0000672
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:
0.000579
Gnomad4 OTH exome
AF:
0.000381
GnomAD4 genome
AF:
0.000230
AC:
35
AN:
152364
Hom.:
0
Cov.:
33
AF XY:
0.000188
AC XY:
14
AN XY:
74514
show subpopulations
Gnomad4 AFR
AF:
0.0000962
Gnomad4 AMR
AF:
0.0000653
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000469
Hom.:
0
Bravo
AF:
0.000363
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.000231
AC:
28
EpiCase
AF:
0.000764
EpiControl
AF:
0.000415

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 GeneticsMar 25, 2022The c.319A>G (p.R107G) alteration is located in exon 3 (coding exon 1) of the RNMT gene. This alteration results from a A to G substitution at nucleotide position 319, causing the arginine (R) at amino acid position 107 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
0.069
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.53
CADD
Benign
14
DANN
Benign
0.93
DEOGEN2
Benign
0.0082
T;T;.;T;T
Eigen
Benign
-0.88
Eigen_PC
Benign
-0.82
FATHMM_MKL
Benign
0.29
N
LIST_S2
Benign
0.64
.;.;T;.;T
M_CAP
Benign
0.0029
T
MetaRNN
Benign
0.016
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.69
N;N;N;N;N
MutationTaster
Benign
1.0
D;N;N;N;N;N
PrimateAI
Benign
0.21
T
PROVEAN
Benign
-0.69
N;N;.;.;N
REVEL
Benign
0.038
Sift
Benign
0.41
T;T;.;.;T
Sift4G
Benign
0.41
T;T;T;T;T
Polyphen
0.0050
B;B;B;B;B
Vest4
0.071
MVP
0.14
MPC
0.28
ClinPred
0.020
T
GERP RS
-5.7
Varity_R
0.033
gMVP
0.11

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: rs143290824; hg19: chr18-13731835; API