chr18-13752326-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_003799.3(RNMT):​c.1258C>T​(p.Pro420Ser) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000188 in 1,598,502 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

RNMT
NM_003799.3 missense, splice_region

Scores

1
18
Splicing: ADA: 0.0008427
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.28
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 Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.087458104).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RNMTNM_003799.3 linkuse as main transcriptc.1258C>T p.Pro420Ser missense_variant, splice_region_variant 10/12 ENST00000383314.7 NP_003790.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RNMTENST00000383314.7 linkuse as main transcriptc.1258C>T p.Pro420Ser missense_variant, splice_region_variant 10/121 NM_003799.3 ENSP00000372804 P1O43148-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152108
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
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
GnomAD3 exomes
AF:
0.00000399
AC:
1
AN:
250782
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135590
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
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:
0.00000138
AC:
2
AN:
1446276
Hom.:
0
Cov.:
27
AF XY:
0.00000139
AC XY:
1
AN XY:
720582
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.10e-7
Gnomad4 OTH exome
AF:
0.0000167
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152226
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74442
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

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 07, 2023The c.1258C>T (p.P420S) alteration is located in exon 10 (coding exon 8) of the RNMT gene. This alteration results from a C to T substitution at nucleotide position 1258, causing the proline (P) at amino acid position 420 to be replaced by a serine (S). 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
0.13
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.47
CADD
Benign
19
DANN
Benign
0.83
DEOGEN2
Benign
0.0095
T;T;.;T;T
Eigen
Benign
-0.30
Eigen_PC
Benign
-0.14
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Benign
0.83
.;.;T;.;T
M_CAP
Benign
0.0064
T
MetaRNN
Benign
0.087
T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.69
N;N;N;N;N
MutationTaster
Benign
0.96
D;D;D;D;D;D
PrimateAI
Benign
0.45
T
PROVEAN
Benign
-0.25
N;N;.;.;N
REVEL
Benign
0.024
Sift
Benign
0.63
T;T;.;.;T
Sift4G
Benign
0.87
T;T;T;T;T
Polyphen
0.063
B;B;B;B;B
Vest4
0.22
MutPred
0.28
Gain of phosphorylation at P420 (P = 0.05);Gain of phosphorylation at P420 (P = 0.05);Gain of phosphorylation at P420 (P = 0.05);Gain of phosphorylation at P420 (P = 0.05);Gain of phosphorylation at P420 (P = 0.05);
MVP
0.53
MPC
0.26
ClinPred
0.57
D
GERP RS
3.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.18
gMVP
0.43

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00084
dbscSNV1_RF
Benign
0.050
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: rs544424412; hg19: chr18-13752325; API