Genetic Variant RPAP1:p.Val1150Leu (chr15-41520738-C-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_015540.4(RPAP1):c.3448G>C(p.Val1150Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000197 in 152,232 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 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: 32)

Consequence

RPAP1
NM_015540.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.13

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]

RPAP1 links:

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=0.2138179).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RPAP1	NM_015540.4 link	c.3448G>C	p.Val1150Leu	missense_variant	Exon 22 of 25	ENST00000304330.9	NP_056355.2	Q9BWH6-1A8K2F9
RPAP1	XM_005254297.2 link	c.3448G>C	p.Val1150Leu	missense_variant	Exon 22 of 25		XP_005254354.1	Q9BWH6-1
RPAP1	XM_047432374.1 link	c.3268G>C	p.Val1090Leu	missense_variant	Exon 21 of 24		XP_047288330.1
RPAP1	XM_047432375.1 link	c.3268G>C	p.Val1090Leu	missense_variant	Exon 21 of 24		XP_047288331.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
RPAP1	ENST00000304330.9 link	c.3448G>C	p.Val1150Leu	missense_variant	Exon 22 of 25	1	NM_015540.4	ENSP00000306123.4	Q9BWH6-1
RPAP1	ENST00000562303.5 link	n.3448G>C		non_coding_transcript_exon_variant	Exon 22 of 24	1		ENSP00000455363.1	Q9BWH6-2
RPAP1	ENST00000565167.1 link	n.464G>C		non_coding_transcript_exon_variant	Exon 2 of 4	1
RPAP1	ENST00000561603.5 link	c.3038+1000G>C		intron_variant	Intron 21 of 23	5		ENSP00000456207.1	H3BRE8

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152232

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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:

0.00000399

AC:

AN:

250456

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135498

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

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

Cov.:

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152232

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74388

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000196

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

Bravo

AF:

0.0000151

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 21, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.3448G>C (p.V1150L) alteration is located in exon 22 (coding exon 21) of the RPAP1 gene. This alteration results from a G to C substitution at nucleotide position 3448, causing the valine (V) at amino acid position 1150 to be replaced by a leucine (L). 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

0.21

BayesDel_addAF

Uncertain

0.062

BayesDel_noAF

Benign

-0.15

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.0044

Eigen

Benign

0.16

Eigen_PC

Uncertain

0.29

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.77

M_CAP

Benign

0.053

MetaRNN

Benign

0.21

MetaSVM

Benign

-0.41

MutationAssessor

Uncertain

2.2

PrimateAI

Benign

0.46

PROVEAN

Benign

-0.80

REVEL

Uncertain

0.35

Sift

Benign

0.13

Sift4G

Uncertain

0.030

Polyphen

0.43

Vest4

0.16

MutPred

0.48

Gain of glycosylation at P1151 (P = 0.0997);

MVP

0.85

MPC

0.70

ClinPred

0.41

GERP RS

5.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.083

gMVP

0.48

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over