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GeneBe

13-33818231-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_002915.4(RFC3):c.53A>G(p.Tyr18Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000186 in 1,613,564 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000017 ( 1 hom. )

Consequence

RFC3
NM_002915.4 missense

Scores

3
11
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.09
Variant links:
Genes affected
RFC3 (HGNC:9971): (replication factor C subunit 3) The elongation of primed DNA templates by DNA polymerase delta and DNA polymerase epsilon requires the accessory proteins proliferating cell nuclear antigen (PCNA) and replication factor C (RFC). RFC, also named activator 1, is a protein complex consisting of five distinct subunits of 140, 40, 38, 37, and 36 kDa. This gene encodes the 38 kDa subunit. This subunit is essential for the interaction between the 140 kDa subunit and the core complex that consists of the 36, 37, and 40 kDa subunits. Alternatively spliced transcript variants encoding distinct isoforms have been described. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
RFC3NM_002915.4 linkuse as main transcriptc.53A>G p.Tyr18Cys missense_variant 1/9 ENST00000380071.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
RFC3ENST00000380071.8 linkuse as main transcriptc.53A>G p.Tyr18Cys missense_variant 1/91 NM_002915.4 P1P40938-1
RFC3ENST00000434425.5 linkuse as main transcriptc.53A>G p.Tyr18Cys missense_variant 1/95 P40938-2

Frequencies

GnomAD3 genomes
AF:
0.0000328
AC:
5
AN:
152254
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000404
AC:
10
AN:
247602
Hom.:
0
AF XY:
0.0000444
AC XY:
6
AN XY:
135024
show subpopulations
Gnomad AFR exome
AF:
0.0000659
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000546
Gnomad SAS exome
AF:
0.000261
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000171
AC:
25
AN:
1461310
Hom.:
1
Cov.:
31
AF XY:
0.0000234
AC XY:
17
AN XY:
726964
show subpopulations
Gnomad4 AFR exome
AF:
0.000119
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000328
AC:
5
AN:
152254
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74390
show subpopulations
Gnomad4 AFR
AF:
0.0000965
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113
ExAC
AF:
0.0000578
AC:
7

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 31, 2022The c.53A>G (p.Y18C) alteration is located in exon 1 (coding exon 1) of the RFC3 gene. This alteration results from a A to G substitution at nucleotide position 53, causing the tyrosine (Y) at amino acid position 18 to be replaced by a cysteine (C). 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
0.28
BayesDel_addAF
Benign
-0.075
T
BayesDel_noAF
Uncertain
-0.050
Cadd
Pathogenic
27
Dann
Uncertain
0.99
DEOGEN2
Uncertain
0.43
T;.
Eigen
Uncertain
0.64
Eigen_PC
Uncertain
0.58
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Pathogenic
0.97
D;D
M_CAP
Benign
0.046
D
MetaRNN
Uncertain
0.68
D;D
MetaSVM
Benign
-0.56
T
MutationAssessor
Pathogenic
3.3
M;M
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.77
T
PROVEAN
Pathogenic
-8.2
D;D
REVEL
Uncertain
0.33
Sift
Uncertain
0.0010
D;D
Sift4G
Uncertain
0.0030
D;D
Polyphen
0.99
D;.
Vest4
0.66
MutPred
0.65
Loss of phosphorylation at Y18 (P = 0.0631);Loss of phosphorylation at Y18 (P = 0.0631);
MVP
0.75
MPC
0.37
ClinPred
0.99
D
GERP RS
5.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.95
gMVP
0.66

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: rs781125577; hg19: chr13-34392368; API