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GeneBe

2-216122073-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP2

The NM_021141.4(XRCC5):c.503C>T(p.Ser168Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000656 in 152,340 control chromosomes in the GnomAD database, with no homozygous occurrence. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Consequence

XRCC5
NM_021141.4 missense

Scores

4
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.59
Variant links:
Genes affected
XRCC5 (HGNC:12833): (X-ray repair cross complementing 5) The protein encoded by this gene is the 80-kilodalton subunit of the Ku heterodimer protein which is also known as ATP-dependant DNA helicase II or DNA repair protein XRCC5. Ku is the DNA-binding component of the DNA-dependent protein kinase, and it functions together with the DNA ligase IV-XRCC4 complex in the repair of DNA double-strand break by non-homologous end joining and the completion of V(D)J recombination events. This gene functionally complements Chinese hamster xrs-6, a mutant defective in DNA double-strand break repair and in ability to undergo V(D)J recombination. A rare microsatellite polymorphism in this gene is associated with cancer in patients of varying radiosensitivity. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant where missense usually causes diseases, XRCC5

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
XRCC5NM_021141.4 linkuse as main transcriptc.503C>T p.Ser168Leu missense_variant 6/21 ENST00000392132.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
XRCC5ENST00000392132.7 linkuse as main transcriptc.503C>T p.Ser168Leu missense_variant 6/211 NM_021141.4 P1
XRCC5ENST00000460284.5 linkuse as main transcriptn.1045C>T non_coding_transcript_exon_variant 3/181
XRCC5ENST00000392133.7 linkuse as main transcriptc.503C>T p.Ser168Leu missense_variant 8/235 P1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152222
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
31
GnomAD4 genome
AF:
0.00000656
AC:
1
AN:
152340
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74498
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00

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 GeneticsOct 14, 2021The c.503C>T (p.S168L) alteration is located in exon 6 (coding exon 6) of the XRCC5 gene. This alteration results from a C to T substitution at nucleotide position 503, causing the serine (S) at amino acid position 168 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
0.076
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.47
Cadd
Benign
17
Dann
Uncertain
0.99
DEOGEN2
Benign
0.16
T;T
Eigen
Benign
-0.44
Eigen_PC
Benign
-0.45
FATHMM_MKL
Uncertain
0.91
D
M_CAP
Benign
0.0080
T
MetaRNN
Uncertain
0.50
D;D
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.90
L;L
MutationTaster
Benign
0.96
N;N
PrimateAI
Benign
0.35
T
PROVEAN
Benign
-1.0
N;N
REVEL
Benign
0.089
Sift
Benign
0.18
T;T
Sift4G
Uncertain
0.0040
D;D
Polyphen
0.71
P;P
Vest4
0.40
MutPred
0.68
Loss of disorder (P = 0.0321);Loss of disorder (P = 0.0321);
MVP
0.16
MPC
0.73
ClinPred
0.37
T
GERP RS
3.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.049
gMVP
0.54

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-216986796; API