15-82989930-C-T

Variant summary

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

The ENST00000304191.4(RAMAC):​c.220C>T​(p.Pro74Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,611,924 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

RAMAC
ENST00000304191.4 missense

Scores

1
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.64
Variant links:
Genes affected
RAMAC (HGNC:31022): (RNA guanine-7 methyltransferase activating subunit) Enables RNA binding activity and enzyme activator activity. Involved in methylation and recruitment of mRNA capping enzyme to RNA polymerase II holoenzyme complex. Located in nucleoplasm. Part of mRNA cap binding activity complex and mRNA cap methyltransferase complex. [provided by Alliance of Genome Resources, Apr 2022]
C15orf40 (HGNC:28443): (chromosome 15 open reading frame 40) Predicted to be active in cytoplasm. [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=0.05192581).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RAMACNM_031452.4 linkuse as main transcriptc.220C>T p.Pro74Ser missense_variant 4/4 ENST00000304191.4 NP_113640.1 Q9BTL3
C15orf40NM_001160116.2 linkuse as main transcriptc.367-773G>A intron_variant NP_001153588.1 Q8WUR7-2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RAMACENST00000304191.4 linkuse as main transcriptc.220C>T p.Pro74Ser missense_variant 4/41 NM_031452.4 ENSP00000307181.3 Q9BTL3

Frequencies

GnomAD3 genomes
AF:
0.0000199
AC:
3
AN:
151072
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000731
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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
GnomAD3 exomes
AF:
0.00000799
AC:
2
AN:
250158
Hom.:
0
AF XY:
0.00000739
AC XY:
1
AN XY:
135290
show subpopulations
Gnomad AFR exome
AF:
0.000124
Gnomad AMR exome
AF:
0.00
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:
0.00000274
AC:
4
AN:
1460852
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
726740
show subpopulations
Gnomad4 AFR exome
AF:
0.000120
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000199
AC:
3
AN:
151072
Hom.:
0
Cov.:
31
AF XY:
0.0000136
AC XY:
1
AN XY:
73606
show subpopulations
Gnomad4 AFR
AF:
0.0000731
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000214
Hom.:
0
Bravo
AF:
0.0000604
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0

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 14, 2024The c.220C>T (p.P74S) alteration is located in exon 4 (coding exon 2) of the FAM103A1 gene. This alteration results from a C to T substitution at nucleotide position 220, causing the proline (P) at amino acid position 74 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
0.11
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
18
DANN
Uncertain
0.99
DEOGEN2
Benign
0.016
T
Eigen
Benign
-0.19
Eigen_PC
Benign
-0.033
FATHMM_MKL
Benign
0.73
D
LIST_S2
Benign
0.62
T
M_CAP
Benign
0.0020
T
MetaRNN
Benign
0.052
T
MetaSVM
Benign
-0.99
T
MutationTaster
Benign
1.0
D;D
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-1.2
N
REVEL
Benign
0.044
Sift
Benign
0.18
T
Sift4G
Benign
0.66
T
Polyphen
0.017
B
Vest4
0.15
MVP
0.043
MPC
0.48
ClinPred
0.067
T
GERP RS
3.7
Varity_R
0.036
gMVP
0.14

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: rs368003453; hg19: chr15-83658682; API