rs756079504

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BS1_Supporting

The NM_032444.4(SLX4):​c.653G>C​(p.Arg218Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000235 in 1,614,076 control chromosomes in the GnomAD database, including 1 homozygotes. 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. R218S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000010 ( 1 hom. )

Consequence

SLX4
NM_032444.4 missense

Scores

5
7
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.17

Publications

0 publications found
Variant links:
Genes affected
SLX4 (HGNC:23845): (SLX4 structure-specific endonuclease subunit) This gene encodes a protein that functions as an assembly component of multiple structure-specific endonucleases. These endonuclease complexes are required for repair of specific types of DNA lesions and critical for cellular responses to replication fork failure. Mutations in this gene were found in patients with Fanconi anemia. [provided by RefSeq, Sep 2016]
SLX4 Gene-Disease associations (from GenCC):
  • Fanconi anemia complementation group P
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, G2P
  • Fanconi anemia
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • familial ovarian cancer
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
  • hereditary breast carcinoma
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

BS1
Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000151 (23/152186) while in subpopulation AMR AF = 0.00144 (22/15280). AF 95% confidence interval is 0.000975. There are 0 homozygotes in GnomAd4. There are 13 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

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SLX4NM_032444.4 linkc.653G>C p.Arg218Thr missense_variant Exon 3 of 15 ENST00000294008.4 NP_115820.2 Q8IY92-1
SLX4XM_024450471.2 linkc.653G>C p.Arg218Thr missense_variant Exon 3 of 15 XP_024306239.1
SLX4XM_011522715.4 linkc.653G>C p.Arg218Thr missense_variant Exon 3 of 15 XP_011521017.1
SLX4XR_007064923.1 linkn.1302G>C non_coding_transcript_exon_variant Exon 3 of 13

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SLX4ENST00000294008.4 linkc.653G>C p.Arg218Thr missense_variant Exon 3 of 15 5 NM_032444.4 ENSP00000294008.3 Q8IY92-1
SLX4ENST00000466154.5 linkn.948G>C non_coding_transcript_exon_variant Exon 2 of 7 1
SLX4ENST00000486524.1 linkn.1281G>C non_coding_transcript_exon_variant Exon 3 of 4 2
SLX4ENST00000697858.1 linkn.-7G>C upstream_gene_variant

Frequencies

GnomAD3 genomes
AF:
0.000151
AC:
23
AN:
152186
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00144
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:
0.000479
GnomAD2 exomes
AF:
0.0000398
AC:
10
AN:
251480
AF XY:
0.0000221
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000103
AC:
15
AN:
1461890
Hom.:
1
Cov.:
33
AF XY:
0.00000413
AC XY:
3
AN XY:
727244
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.000313
AC:
14
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53418
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1112010
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.487
Heterozygous variant carriers
0
1
3
4
6
7
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:
0.000151
AC:
23
AN:
152186
Hom.:
0
Cov.:
32
AF XY:
0.000175
AC XY:
13
AN XY:
74348
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41440
American (AMR)
AF:
0.00144
AC:
22
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68038
Other (OTH)
AF:
0.000479
AC:
1
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.516
Heterozygous variant carriers
0
1
2
4
5
6
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:
0.0000712
Hom.:
0
Bravo
AF:
0.000159
ExAC
AF:
0.00000824
AC:
1

ClinVar

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

Submissions by phenotype

Fanconi anemia Uncertain:1
Sep 01, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine with threonine at codon 218 of the SLX4 protein (p.Arg218Thr). The arginine residue is moderately conserved and there is a moderate physicochemical difference between arginine and threonine. This variant is present in population databases (rs756079504, ExAC 0.009%). This variant has not been reported in the literature in individuals affected with SLX4-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.76
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.22
CADD
Pathogenic
26
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.50
D
Eigen
Pathogenic
0.72
Eigen_PC
Pathogenic
0.70
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.79
T
M_CAP
Benign
0.039
D
MetaRNN
Uncertain
0.62
D
MetaSVM
Benign
-1.2
T
MutationAssessor
Uncertain
2.5
M
PhyloP100
5.2
PrimateAI
Uncertain
0.49
T
PROVEAN
Uncertain
-3.5
D
REVEL
Benign
0.19
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.68
MutPred
0.33
Loss of MoRF binding (P = 0.0111);
MVP
0.48
MPC
0.43
ClinPred
0.80
D
GERP RS
5.2
Varity_R
0.75
gMVP
0.58
Mutation Taster
=67/33
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: rs756079504; hg19: chr16-3656582; API