rs79448721

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_032444.4(SLX4):​c.2746G>T​(p.Ala916Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0017 in 1,614,054 control chromosomes in the GnomAD database, including 37 homozygotes. 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 Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A916V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0089 ( 26 hom., cov: 32)
Exomes 𝑓: 0.00094 ( 11 hom. )

Consequence

SLX4
NM_032444.4 missense

Scores

18

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: -0.110

Publications

4 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 -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.002067536).
BP6
Variant 16-3590892-C-A is Benign according to our data. Variant chr16-3590892-C-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 241674.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00894 (1361/152168) while in subpopulation AFR AF = 0.0312 (1296/41506). AF 95% confidence interval is 0.0298. There are 26 homozygotes in GnomAd4. There are 665 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 26 AR,AD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SLX4NM_032444.4 linkc.2746G>T p.Ala916Ser missense_variant Exon 12 of 15 ENST00000294008.4 NP_115820.2 Q8IY92-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SLX4ENST00000294008.4 linkc.2746G>T p.Ala916Ser missense_variant Exon 12 of 15 5 NM_032444.4 ENSP00000294008.3 Q8IY92-1

Frequencies

GnomAD3 genomes
AF:
0.00894
AC:
1360
AN:
152050
Hom.:
26
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0313
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00301
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:
0.0000735
Gnomad OTH
AF:
0.00621
GnomAD2 exomes
AF:
0.00233
AC:
586
AN:
251472
AF XY:
0.00172
show subpopulations
Gnomad AFR exome
AF:
0.0316
Gnomad AMR exome
AF:
0.00176
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.000814
GnomAD4 exome
AF:
0.000943
AC:
1378
AN:
1461886
Hom.:
11
Cov.:
36
AF XY:
0.000793
AC XY:
577
AN XY:
727242
show subpopulations
African (AFR)
AF:
0.0336
AC:
1125
AN:
33480
American (AMR)
AF:
0.00228
AC:
102
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:
0.0000696
AC:
6
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53412
Middle Eastern (MID)
AF:
0.00121
AC:
7
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000198
AC:
22
AN:
1112012
Other (OTH)
AF:
0.00192
AC:
116
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
100
200
300
400
500
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
38
76
114
152
190
<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:
0.00894
AC:
1361
AN:
152168
Hom.:
26
Cov.:
32
AF XY:
0.00894
AC XY:
665
AN XY:
74386
show subpopulations
African (AFR)
AF:
0.0312
AC:
1296
AN:
41506
American (AMR)
AF:
0.00301
AC:
46
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5166
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10604
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
67986
Other (OTH)
AF:
0.00614
AC:
13
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
60
121
181
242
302
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.00402
Hom.:
53
Bravo
AF:
0.0107
ESP6500AA
AF:
0.0332
AC:
146
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00282
AC:
342
Asia WGS
AF:
0.00115
AC:
4
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Feb 08, 2017
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Dec 11, 2020
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Fanconi anemia complementation group P Benign:2
Jul 07, 2023
KCCC/NGS Laboratory, Kuwait Cancer Control Center
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

not specified Benign:1
-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Fanconi anemia Benign:1
Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.71
T
BayesDel_noAF
Benign
-0.77
CADD
Benign
0.68
DANN
Benign
0.52
DEOGEN2
Benign
0.024
T
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.052
N
LIST_S2
Benign
0.36
T
MetaRNN
Benign
0.0021
T
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
1.4
L
PhyloP100
-0.11
PrimateAI
Benign
0.22
T
PROVEAN
Benign
0.060
N
REVEL
Benign
0.035
Sift
Benign
0.48
T
Sift4G
Benign
0.76
T
Polyphen
0.010
B
Vest4
0.095
MVP
0.067
MPC
0.055
ClinPred
0.0020
T
GERP RS
-4.9
Varity_R
0.030
gMVP
0.15
Mutation Taster
=99/1
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: rs79448721; hg19: chr16-3640893; API