rs552222088

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_004628.5(XPC):​c.718C>T​(p.Arg240Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000299 in 1,607,500 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars). Synonymous variant affecting the same amino acid position (i.e. R240R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

XPC
NM_004628.5 missense

Scores

7
11

Clinical Significance

Uncertain significance no assertion criteria provided U:1O:1

Conservation

PhyloP100: 4.24

Publications

3 publications found
Variant links:
Genes affected
XPC (HGNC:12816): (XPC complex subunit, DNA damage recognition and repair factor) The protein encoded by this gene is a key component of the XPC complex, which plays an important role in the early steps of global genome nucleotide excision repair (NER). The encoded protein is important for damage sensing and DNA binding, and shows a preference for single-stranded DNA. Mutations in this gene or some other NER components can result in Xeroderma pigmentosum, a rare autosomal recessive disorder characterized by increased sensitivity to sunlight with the development of carcinomas at an early age. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Aug 2017]
XPC-AS1 (HGNC:55014): (XPC antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.054832518).
BS1
Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.0000394 (6/152306) while in subpopulation EAS AF = 0.00116 (6/5174). AF 95% confidence interval is 0.000505. There are 0 homozygotes in GnomAd4. There are 4 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004628.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
XPC
NM_004628.5
MANE Select
c.718C>Tp.Arg240Cys
missense
Exon 6 of 16NP_004619.3
XPC
NM_001354727.2
c.718C>Tp.Arg240Cys
missense
Exon 6 of 16NP_001341656.1
XPC
NM_001354729.2
c.700C>Tp.Arg234Cys
missense
Exon 6 of 16NP_001341658.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
XPC
ENST00000285021.12
TSL:1 MANE Select
c.718C>Tp.Arg240Cys
missense
Exon 6 of 16ENSP00000285021.8
XPC
ENST00000476581.6
TSL:1
n.*171C>T
non_coding_transcript_exon
Exon 5 of 15ENSP00000424548.1
XPC
ENST00000476581.6
TSL:1
n.*171C>T
3_prime_UTR
Exon 5 of 15ENSP00000424548.1

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152188
Hom.:
0
Cov.:
32
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:
0.00116
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
GnomAD2 exomes
AF:
0.000113
AC:
27
AN:
238244
AF XY:
0.000101
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00156
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000289
AC:
42
AN:
1455194
Hom.:
0
Cov.:
30
AF XY:
0.0000249
AC XY:
18
AN XY:
723046
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33408
American (AMR)
AF:
0.00
AC:
0
AN:
43748
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25986
East Asian (EAS)
AF:
0.000911
AC:
36
AN:
39528
South Asian (SAS)
AF:
0.00
AC:
0
AN:
84698
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53046
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5742
European-Non Finnish (NFE)
AF:
0.00000451
AC:
5
AN:
1108836
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60202
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
3
5
8
10
13
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152306
Hom.:
0
Cov.:
32
AF XY:
0.0000537
AC XY:
4
AN XY:
74464
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41578
American (AMR)
AF:
0.00
AC:
0
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00116
AC:
6
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68018
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.000116
AC:
14

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1Other:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Xeroderma pigmentosum, group C Uncertain:1
Mar 08, 2017
Counsyl
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com.

not specified Other:1
Sep 19, 2013
ITMI
Significance:not provided
Review Status:no classification provided
Collection Method:reference population

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.35
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.38
T
Eigen
Benign
0.060
Eigen_PC
Benign
-0.051
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Uncertain
0.94
D
M_CAP
Benign
0.016
T
MetaRNN
Benign
0.055
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.5
M
PhyloP100
4.2
PrimateAI
Benign
0.22
T
PROVEAN
Uncertain
-3.7
D
REVEL
Benign
0.20
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.0030
D
Polyphen
0.99
D
Vest4
0.46
MutPred
0.72
Loss of sheet (P = 0.0817)
MVP
0.31
MPC
0.39
ClinPred
0.25
T
GERP RS
3.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.29
gMVP
0.33
Mutation Taster
=90/10
polymorphism

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

Other links and lift over

dbSNP: rs552222088; hg19: chr3-14206989; COSMIC: COSV105837614; API