rs77306735

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_032444.4(SLX4):​c.422G>T​(p.Gly141Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000281 in 1,614,138 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G141W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

SLX4
NM_032444.4 missense

Scores

1
17

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:5

Conservation

PhyloP100: -0.0990

Publications

2 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: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.004153013).
BP6
Variant 16-3608543-C-A is Benign according to our data. Variant chr16-3608543-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 423992.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00129 (197/152248) while in subpopulation AFR AF = 0.00443 (184/41548). AF 95% confidence interval is 0.00391. There are 0 homozygotes in GnomAd4. There are 95 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SLX4NM_032444.4 linkc.422G>T p.Gly141Val missense_variant Exon 2 of 15 ENST00000294008.4 NP_115820.2 Q8IY92-1
SLX4XM_024450471.2 linkc.422G>T p.Gly141Val missense_variant Exon 2 of 15 XP_024306239.1
SLX4XM_011522715.4 linkc.422G>T p.Gly141Val missense_variant Exon 2 of 15 XP_011521017.1
SLX4XR_007064923.1 linkn.1071G>T non_coding_transcript_exon_variant Exon 2 of 13

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SLX4ENST00000294008.4 linkc.422G>T p.Gly141Val missense_variant Exon 2 of 15 5 NM_032444.4 ENSP00000294008.3 Q8IY92-1
SLX4ENST00000466154.5 linkn.717G>T non_coding_transcript_exon_variant Exon 1 of 7 1
SLX4ENST00000486524.1 linkn.1050G>T non_coding_transcript_exon_variant Exon 2 of 4 2
SLX4ENST00000697859.1 linkn.1044G>T non_coding_transcript_exon_variant Exon 2 of 2

Frequencies

GnomAD3 genomes
AF:
0.00129
AC:
196
AN:
152130
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00442
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000590
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:
0.0000147
Gnomad OTH
AF:
0.000957
GnomAD2 exomes
AF:
0.000310
AC:
78
AN:
251488
AF XY:
0.000280
show subpopulations
Gnomad AFR exome
AF:
0.00394
Gnomad AMR exome
AF:
0.000231
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.000176
AC:
257
AN:
1461890
Hom.:
0
Cov.:
31
AF XY:
0.000154
AC XY:
112
AN XY:
727244
show subpopulations
African (AFR)
AF:
0.00627
AC:
210
AN:
33480
American (AMR)
AF:
0.000224
AC:
10
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:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.0000171
AC:
19
AN:
1112010
Other (OTH)
AF:
0.000298
AC:
18
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
19
38
56
75
94
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.00129
AC:
197
AN:
152248
Hom.:
0
Cov.:
32
AF XY:
0.00128
AC XY:
95
AN XY:
74448
show subpopulations
African (AFR)
AF:
0.00443
AC:
184
AN:
41548
American (AMR)
AF:
0.000589
AC:
9
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10602
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68026
Other (OTH)
AF:
0.000947
AC:
2
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
11
21
32
42
53
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000469
Hom.:
0
Bravo
AF:
0.00156
ESP6500AA
AF:
0.00228
AC:
10
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000346
AC:
42
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:5
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
May 17, 2018
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The G141V variant in the SLX4 gene has not been reported previously as a pathogenic variant, nor as a benign variant, to our knowledge. The G141V variant is observed in 105/24034 (0.44%) alleles from individuals of African background, in large population cohorts (Lek et al., 2016). The G141V variant is a conservative amino acid substitution, which is not likely to impact secondary protein structure as these residues share similar properties. In-silico analyses, including protein predictors and evolutionary conservation, support that this variant does not alter protein structure/function. We interpret G141V as a variant of uncertain significance. -

May 01, 2022
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

SLX4: BP4 -

Fanconi anemia Benign:2
Dec 01, 2020
Sema4, Sema4
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:curation

- -

Jan 13, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Uncertain:1
Sep 25, 2015
Genetic Services Laboratory, University of Chicago
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Fanconi anemia complementation group P Benign:1
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

SLX4-related disorder Benign:1
Feb 10, 2022
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
-0.65
T
BayesDel_noAF
Benign
-0.70
CADD
Benign
4.6
DANN
Benign
0.81
DEOGEN2
Benign
0.26
T
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.10
N
LIST_S2
Benign
0.53
T
MetaRNN
Benign
0.0042
T
MetaSVM
Benign
-0.91
T
MutationAssessor
Benign
1.7
L
PhyloP100
-0.099
PrimateAI
Benign
0.23
T
PROVEAN
Benign
-2.1
N
REVEL
Benign
0.028
Sift
Benign
0.14
T
Sift4G
Uncertain
0.036
D
Polyphen
0.023
B
Vest4
0.24
MVP
0.088
MPC
0.21
ClinPred
0.014
T
GERP RS
0.014
Varity_R
0.094
gMVP
0.18
Mutation Taster
=88/12
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: rs77306735; hg19: chr16-3658544; API