chr15-41520849-C-T

Variant summary

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

The NM_015540.4(RPAP1):​c.3337G>A​(p.Ala1113Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00007 in 1,613,716 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000068 ( 1 hom. )

Consequence

RPAP1
NM_015540.4 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.18
Variant links:
Genes affected
RPAP1 (HGNC:24567): (RNA polymerase II associated protein 1) This protein forms part of the RNA polymerase II (RNAPII) enzyme complex and may recruit RNAPII to chromatin through its interaction with acetylated histones. [provided by RefSeq, Jul 2012]

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=0.06408119).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
RPAP1NM_015540.4 linkuse as main transcriptc.3337G>A p.Ala1113Thr missense_variant 22/25 ENST00000304330.9
RPAP1XM_005254297.2 linkuse as main transcriptc.3337G>A p.Ala1113Thr missense_variant 22/25
RPAP1XM_047432374.1 linkuse as main transcriptc.3157G>A p.Ala1053Thr missense_variant 21/24
RPAP1XM_047432375.1 linkuse as main transcriptc.3157G>A p.Ala1053Thr missense_variant 21/24

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
RPAP1ENST00000304330.9 linkuse as main transcriptc.3337G>A p.Ala1113Thr missense_variant 22/251 NM_015540.4 P1Q9BWH6-1
RPAP1ENST00000565167.1 linkuse as main transcriptn.353G>A non_coding_transcript_exon_variant 2/41
RPAP1ENST00000562303.5 linkuse as main transcriptc.3337G>A p.Ala1113Thr missense_variant, NMD_transcript_variant 22/241 Q9BWH6-2
RPAP1ENST00000561603.5 linkuse as main transcriptc.3038+889G>A intron_variant 5

Frequencies

GnomAD3 genomes
AF:
0.0000920
AC:
14
AN:
152160
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
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:
0.0000882
Gnomad OTH
AF:
0.00143
GnomAD3 exomes
AF:
0.000152
AC:
38
AN:
250632
Hom.:
0
AF XY:
0.0000738
AC XY:
10
AN XY:
135592
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000723
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000466
Gnomad NFE exome
AF:
0.0000441
Gnomad OTH exome
AF:
0.00114
GnomAD4 exome
AF:
0.0000677
AC:
99
AN:
1461556
Hom.:
1
Cov.:
30
AF XY:
0.0000481
AC XY:
35
AN XY:
727078
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000738
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000188
Gnomad4 NFE exome
AF:
0.0000486
Gnomad4 OTH exome
AF:
0.000182
GnomAD4 genome
AF:
0.0000920
AC:
14
AN:
152160
Hom.:
0
Cov.:
32
AF XY:
0.000135
AC XY:
10
AN XY:
74328
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000327
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000882
Gnomad4 OTH
AF:
0.00143
Alfa
AF:
0.0000600
Hom.:
0
Bravo
AF:
0.0000680
ExAC
AF:
0.000165
AC:
20
EpiCase
AF:
0.000164
EpiControl
AF:
0.0000593

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 GeneticsAug 23, 2021The c.3337G>A (p.A1113T) alteration is located in exon 22 (coding exon 21) of the RPAP1 gene. This alteration results from a G to A substitution at nucleotide position 3337, causing the alanine (A) at amino acid position 1113 to be replaced by a threonine (T). 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
0.089
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.24
CADD
Benign
15
DANN
Uncertain
1.0
DEOGEN2
Benign
0.0035
T
Eigen
Benign
-0.26
Eigen_PC
Benign
-0.25
FATHMM_MKL
Uncertain
0.86
D
LIST_S2
Benign
0.77
T
M_CAP
Benign
0.062
D
MetaRNN
Benign
0.064
T
MetaSVM
Benign
-0.81
T
MutationAssessor
Uncertain
2.1
M
MutationTaster
Benign
1.0
D;N
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-1.4
N
REVEL
Benign
0.13
Sift
Uncertain
0.028
D
Sift4G
Benign
0.20
T
Polyphen
0.27
B
Vest4
0.25
MutPred
0.50
Gain of relative solvent accessibility (P = 0.0479);
MVP
0.76
MPC
0.38
ClinPred
0.060
T
GERP RS
3.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.057
gMVP
0.15

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: rs774890309; hg19: chr15-41813047; API