rs138484365

chr16-3589254-C-Achr16-3589254-C-Gchr16-3589254-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBS1_Supporting

The NM_032444.4(SLX4):c.4384G>T(p.Ala1462Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000661 in 1,604,038 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A1462T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00035 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000037 ( 0 hom. )

Consequence

SLX4
NM_032444.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:6

Conservation

PhyloP100: -0.199

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.009334475).

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000348 (53/152260) while in subpopulation AMR AF= 0.00124 (19/15300). AF 95% confidence interval is 0.000813. There are 0 homozygotes in gnomad4. There are 32 alleles in male gnomad4 subpopulation. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLX4	NM_032444.4 linkuse as main transcript	c.4384G>T	p.Ala1462Ser	missense_variant	12/15	ENST00000294008.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLX4	ENST00000294008.4 linkuse as main transcript	c.4384G>T	p.Ala1462Ser	missense_variant	12/15	5	NM_032444.4	P1	Q8IY92-1

Frequencies

GnomAD3 genomes

AF:

0.000322

AC:

AN:

152144

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000700

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00124

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

GnomAD3 exomes

AF:

0.0000736

AC:

AN:

244728

Hom.:

AF XY:

0.0000605

AC XY:

AN XY:

132274

show subpopulations

Gnomad AFR exome

AF:

0.000441

Gnomad AMR exome

AF:

0.000324

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:

0.0000365

AC:

AN:

1451778

Hom.:

Cov.:

AF XY:

0.0000347

AC XY:

AN XY:

720604

show subpopulations

Gnomad4 AFR exome

AF:

0.000965

Gnomad4 AMR exome

AF:

0.000272

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000117

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.000100

GnomAD4 genome

AF:

0.000348

AC:

AN:

152260

Hom.:

Cov.:

AF XY:

0.000430

AC XY:

AN XY:

74454

show subpopulations

Gnomad4 AFR

AF:

0.000794

Gnomad4 AMR

AF:

0.00124

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:

0.000474

Alfa

AF:

0.000327

Hom.:

Bravo

AF:

0.000363

ESP6500AA

AF:

0.000683

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000494

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Fanconi anemia

Uncertain:2

Uncertain significance, criteria provided, single submitter	curation	Sema4, Sema4	Oct 21, 2021	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Invitae	Dec 30, 2023	This sequence change replaces alanine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 1462 of the SLX4 protein (p.Ala1462Ser). This variant is present in population databases (rs138484365, gnomAD 0.04%). 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: 436778). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The serine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. -

Fanconi anemia complementation group P

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Baylor Genetics	Jan 11, 2022	This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -
Uncertain significance, criteria provided, single submitter	clinical testing	Fulgent Genetics, Fulgent Genetics	Apr 12, 2022	- -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Mar 10, 2016

- -

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 07, 2022

The c.4384G>T (p.A1462S) alteration is located in exon 12 (coding exon 11) of the SLX4 gene. This alteration results from a G to T substitution at nucleotide position 4384, causing the alanine (A) at amino acid position 1462 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.084

BayesDel_addAF

Benign

-0.58

BayesDel_noAF

Benign

-0.76

Cadd

Benign

0.0070

Dann

Benign

0.22

DEOGEN2

Benign

0.016

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.096

LIST_S2

Benign

0.35

M_CAP

Benign

0.034

MetaRNN

Benign

0.0093

MetaSVM

Benign

-0.93

MutationAssessor

Benign

0.34

MutationTaster

Benign

1.0

PrimateAI

Benign

0.22

PROVEAN

Benign

0.020

REVEL

Benign

0.026

Sift

Benign

0.87

Sift4G

Benign

0.58

Polyphen

0.17

Vest4

0.078

MVP

0.072

MPC

0.054

ClinPred

0.0066

GERP RS

0.24

Varity_R

0.040

gMVP

0.10

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over