chr16-3608544-C-G

Position:

chr16-3608544-C-G

Variant summary

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

The NM_032444.4(SLX4):c.421G>C(p.Gly141Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000681 in 1,614,190 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 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. G141W) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00027 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000047 ( 0 hom. )

Consequence

SLX4
NM_032444.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 0.878

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:

SLX4 (HGNC:):

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=0.010303736).

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000269 (41/152298) while in subpopulation AFR AF= 0.00089 (37/41562). AF 95% confidence interval is 0.000664. There are 0 homozygotes in gnomad4. There are 16 alleles in male gnomad4 subpopulation. Median coverage is 33. 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	Protein	UniProt
SLX4	NM_032444.4 linkuse as main transcript	c.421G>C	p.Gly141Arg	missense_variant	2/15	ENST00000294008.4	NP_115820.2	Q8IY92-1
SLX4	XM_024450471.2 linkuse as main transcript	c.421G>C	p.Gly141Arg	missense_variant	2/15		XP_024306239.1
SLX4	XM_011522715.4 linkuse as main transcript	c.421G>C	p.Gly141Arg	missense_variant	2/15		XP_011521017.1
SLX4	XR_007064923.1 linkuse as main transcript	n.1070G>C		non_coding_transcript_exon_variant	2/13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
SLX4	ENST00000294008.4 linkuse as main transcript	c.421G>C	p.Gly141Arg	missense_variant	2/15	5	NM_032444.4	ENSP00000294008.3	Q8IY92-1
SLX4	ENST00000466154.5 linkuse as main transcript	n.716G>C		non_coding_transcript_exon_variant	1/7	1
SLX4	ENST00000486524.1 linkuse as main transcript	n.1049G>C		non_coding_transcript_exon_variant	2/4	2
SLX4	ENST00000697859.1 linkuse as main transcript	n.1043G>C		non_coding_transcript_exon_variant	2/2

Frequencies

GnomAD3 genomes

AF:

0.000269

AC:

AN:

152180

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000893

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.000577

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:

0.000123

AC:

AN:

251488

Hom.:

AF XY:

0.0000809

AC XY:

AN XY:

135922

show subpopulations

Gnomad AFR exome

AF:

0.00105

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.000794

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000472

AC:

AN:

1461892

Hom.:

Cov.:

AF XY:

0.0000509

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.000717

Gnomad4 AMR exome

AF:

0.0000894

Gnomad4 ASJ exome

AF:

0.000765

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000629

Gnomad4 OTH exome

AF:

0.000199

GnomAD4 genome

AF:

0.000269

AC:

AN:

152298

Hom.:

Cov.:

AF XY:

0.000215

AC XY:

AN XY:

74480

show subpopulations

Gnomad4 AFR

AF:

0.000890

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.000577

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

Alfa

AF:

0.0000975

Hom.:

Bravo

AF:

0.000370

ExAC

AF:

0.000165

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Fanconi anemia

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 03, 2024

This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 141 of the SLX4 protein (p.Gly141Arg). This variant is present in population databases (rs137976282, gnomAD 0.1%). 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: 1041719). 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 arginine 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:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

May 14, 2024

- -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Jun 07, 2019

In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.18

BayesDel_addAF

Benign

-0.53

BayesDel_noAF

Benign

-0.58

CADD

Benign

8.7

DANN

Benign

0.97

DEOGEN2

Benign

0.11

Eigen

Benign

-0.90

Eigen_PC

Benign

-0.87

FATHMM_MKL

Benign

0.18

LIST_S2

Benign

0.51

M_CAP

Uncertain

0.18

MetaRNN

Benign

0.010

MetaSVM

Benign

-0.89

MutationAssessor

Benign

1.7

PrimateAI

Benign

0.25

PROVEAN

Benign

-1.7

REVEL

Benign

0.059

Sift

Uncertain

0.011

Sift4G

Uncertain

0.025

Polyphen

0.023

Vest4

0.23

MutPred

0.13

Gain of MoRF binding (P = 0.0674);

MVP

0.17

MPC

0.070

ClinPred

0.010

GERP RS

2.5

Varity_R

0.082

gMVP

0.16

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