rs374056556

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS1

The NM_032444.4(SLX4):​c.3782C>T​(p.Pro1261Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000688 in 1,613,346 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts 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. P1261S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000070 ( 1 hom. )

Consequence

SLX4
NM_032444.4 missense

Scores

6
5
7

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 7.24

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 -7 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.1716657).
BP6
Variant 16-3589856-G-A is Benign according to our data. Variant chr16-3589856-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 456315.
BS1
Variant frequency is greater than expected in population amr. GnomAdExome4 allele frequency = 0.0000705 (103/1461084) while in subpopulation AMR AF = 0.00199 (89/44722). AF 95% confidence interval is 0.00166. There are 1 homozygotes in GnomAdExome4. There are 38 alleles in the male GnomAdExome4 subpopulation. Median coverage is 37. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032444.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SLX4
NM_032444.4
MANE Select
c.3782C>Tp.Pro1261Leu
missense
Exon 12 of 15NP_115820.2

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SLX4
ENST00000294008.4
TSL:5 MANE Select
c.3782C>Tp.Pro1261Leu
missense
Exon 12 of 15ENSP00000294008.3

Frequencies

GnomAD3 genomes
AF:
0.0000592
AC:
9
AN:
152144
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000966
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000350
AC:
87
AN:
248770
AF XY:
0.000207
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00240
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000546
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000178
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000705
AC:
103
AN:
1461084
Hom.:
1
Cov.:
37
AF XY:
0.0000523
AC XY:
38
AN XY:
726884
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33480
American (AMR)
AF:
0.00199
AC:
89
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86252
European-Finnish (FIN)
AF:
0.0000190
AC:
1
AN:
52690
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000540
AC:
6
AN:
1111974
Other (OTH)
AF:
0.0000663
AC:
4
AN:
60366
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.468
Heterozygous variant carriers
0
6
13
19
26
32
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
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
GnomAD4 genome
AF:
0.0000525
AC:
8
AN:
152262
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74442
show subpopulations
African (AFR)
AF:
0.0000963
AC:
4
AN:
41540
American (AMR)
AF:
0.000196
AC:
3
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68016
Other (OTH)
AF:
0.00
AC:
0
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.436
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.0000566
Hom.:
0
Bravo
AF:
0.000189
ExAC
AF:
0.000321
AC:
39
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Uncertain:1
Mar 29, 2021
Genetic Services Laboratory, University of Chicago
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

DNA sequence analysis of the SLX4 gene demonstrated a sequence change, c.3782C>T, in exon 12 that results in an amino acid change, p.Pro1261Leu. This sequence change has been described in gnomAD with a frequency of 0.24% (dbSNP rs374056556) in the Latino sub-population. The p.Pro1261Leu change affects a highly conserved amino acid residue located in a domain of the SLX4 protein that is not known to be functional. In-silico pathogenicity prediction tools (SIFT, PolyPhen2, Align GVGD, REVEL) provide contradictory results for the p.Pro1261Leu substitution. This sequence change does not appear to have been previously described in patients with SLX4-related disorders. Due to the lack of sufficient evidences, the clinical significance of the p.Pro1261Leu change remains unknown at this time.

Fanconi anemia Benign:1
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.33
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Uncertain
-0.020
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.56
D
Eigen
Pathogenic
0.79
Eigen_PC
Pathogenic
0.77
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.83
T
M_CAP
Uncertain
0.17
D
MetaRNN
Benign
0.17
T
MetaSVM
Benign
-0.33
T
MutationAssessor
Benign
1.9
L
PhyloP100
7.2
PrimateAI
Benign
0.48
T
PROVEAN
Pathogenic
-6.7
D
REVEL
Uncertain
0.39
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.0030
D
Polyphen
1.0
D
Vest4
0.69
MutPred
0.39
Gain of helix (P = 0.0093)
MVP
0.84
MPC
0.36
ClinPred
0.25
T
GERP RS
6.1
Varity_R
0.56
gMVP
0.48
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: rs374056556; hg19: chr16-3639857; COSMIC: COSV53565486; API