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GeneBe

9-97675488-C-T

Variant summary

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

The NM_000380.4(XPA):c.773G>A(p.Arg258His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000205 in 1,613,646 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R258C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

XPA
NM_000380.4 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.10
Variant links:
Genes affected
XPA (HGNC:12814): (XPA, DNA damage recognition and repair factor) This gene encodes a zinc finger protein plays a central role in nucleotide excision repair (NER), a specialized type of DNA repair. NER is responsible for repair of UV radiation-induced photoproducts and DNA adducts induced by chemical carcinogens and chemotherapeutic drugs. The encoded protein interacts with DNA and several NER proteins, acting as a scaffold to assemble the NER incision complex at sites of DNA damage. Mutations in this gene cause Xeroderma pigmentosum complementation group A (XP-A), an autosomal recessive skin disorder featuring hypersensitivity to sunlight and increased risk for skin cancer. [provided by RefSeq, Aug 2017]

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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=0.2560205).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
XPANM_000380.4 linkuse as main transcriptc.773G>A p.Arg258His missense_variant 6/6 ENST00000375128.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
XPAENST00000375128.5 linkuse as main transcriptc.773G>A p.Arg258His missense_variant 6/61 NM_000380.4 P1
XPAENST00000485042.1 linkuse as main transcriptn.285G>A non_coding_transcript_exon_variant 2/23
XPAENST00000462523.5 linkuse as main transcriptc.*209G>A 3_prime_UTR_variant, NMD_transcript_variant 7/75

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
151986
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000145
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.0000398
AC:
10
AN:
251144
Hom.:
0
AF XY:
0.0000295
AC XY:
4
AN XY:
135730
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.0000869
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000881
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.0000157
AC:
23
AN:
1461542
Hom.:
0
Cov.:
31
AF XY:
0.0000138
AC XY:
10
AN XY:
727054
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000580
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000810
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000657
AC:
10
AN:
152104
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74350
show subpopulations
Gnomad4 AFR
AF:
0.000145
Gnomad4 AMR
AF:
0.000131
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:
0.000948
Alfa
AF:
0.0000386
Hom.:
0
Bravo
AF:
0.0000756
ExAC
AF:
0.0000659
AC:
8
Asia WGS
AF:
0.00231
AC:
8
AN:
3478

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Xeroderma pigmentosum Uncertain:1
Uncertain significance, criteria provided, single submittercurationSema4, Sema4Jan 12, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.095
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.28
Cadd
Benign
21
Dann
Uncertain
0.99
DEOGEN2
Benign
0.23
T
Eigen
Benign
0.17
Eigen_PC
Benign
0.21
FATHMM_MKL
Benign
0.70
D
LIST_S2
Uncertain
0.92
D
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.26
T
MetaSVM
Benign
-0.79
T
MutationAssessor
Benign
1.4
L
MutationTaster
Benign
0.54
N
PrimateAI
Benign
0.33
T
PROVEAN
Benign
-0.88
N
REVEL
Benign
0.14
Sift
Benign
0.40
T
Sift4G
Benign
0.56
T
Polyphen
0.95
P
Vest4
0.24
MVP
0.84
MPC
0.34
ClinPred
0.049
T
GERP RS
4.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.068
gMVP
0.28

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: rs763929562; hg19: chr9-100437770; COSMIC: COSV64305791; COSMIC: COSV64305791; API