chr16-3589880-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_032444.4(SLX4):​c.3758C>T​(p.Thr1253Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000266 in 1,613,788 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

SLX4
NM_032444.4 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.172
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.043722987).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SLX4NM_032444.4 linkuse as main transcriptc.3758C>T p.Thr1253Ile missense_variant 12/15 ENST00000294008.4 NP_115820.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SLX4ENST00000294008.4 linkuse as main transcriptc.3758C>T p.Thr1253Ile missense_variant 12/155 NM_032444.4 ENSP00000294008 P1Q8IY92-1

Frequencies

GnomAD3 genomes
AF:
0.000131
AC:
20
AN:
152126
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000483
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000240
AC:
6
AN:
250422
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135614
show subpopulations
Gnomad AFR exome
AF:
0.000374
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS 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:
0.0000144
AC:
21
AN:
1461544
Hom.:
0
Cov.:
37
AF XY:
0.0000151
AC XY:
11
AN XY:
727098
show subpopulations
Gnomad4 AFR exome
AF:
0.000448
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.0000662
GnomAD4 genome
AF:
0.000145
AC:
22
AN:
152244
Hom.:
0
Cov.:
32
AF XY:
0.000107
AC XY:
8
AN XY:
74428
show subpopulations
Gnomad4 AFR
AF:
0.000530
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.000132
ESP6500AA
AF:
0.000455
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000412
AC:
5

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Fanconi anemia Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpOct 06, 2022This sequence change replaces threonine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 1253 of the SLX4 protein (p.Thr1253Ile). This variant is present in population databases (rs202148391, gnomAD 0.05%). This variant has not been reported in the literature in individuals affected with SLX4-related conditions. ClinVar contains an entry for this variant (Variation ID: 526386). 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: "Possibly 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. -
SLX4-related disorder Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesApr 17, 2023The SLX4 c.3758C>T variant is predicted to result in the amino acid substitution p.Thr1253Ile. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.044% of alleles in individuals of African descent in gnomAD (http://gnomad.broadinstitute.org/variant/16-3639881-G-A). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.22
BayesDel_addAF
Benign
-0.52
T
BayesDel_noAF
Benign
-0.64
CADD
Benign
13
DANN
Uncertain
0.99
DEOGEN2
Benign
0.29
T
Eigen
Benign
-0.58
Eigen_PC
Benign
-0.69
FATHMM_MKL
Benign
0.12
N
LIST_S2
Benign
0.68
T
M_CAP
Benign
0.051
D
MetaRNN
Benign
0.044
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.7
L
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.30
T
PROVEAN
Uncertain
-2.9
D
REVEL
Benign
0.033
Sift
Uncertain
0.0030
D
Sift4G
Uncertain
0.022
D
Polyphen
0.77
P
Vest4
0.13
MVP
0.20
MPC
0.23
ClinPred
0.17
T
GERP RS
0.48
Varity_R
0.085
gMVP
0.28

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs202148391; hg19: chr16-3639881; API