dbSNP rs373558741: SLX4:p.Arg1826Leu (chr16-3582370-C-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_032444.4(SLX4):c.5477G>T(p.Arg1826Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,812 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1826W) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SLX4
NM_032444.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -2.05

Publications

0 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

SLX4 links:

ENSG00000261938 (HGNC:):

ENSG00000261938 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.028939307).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLX4	NM_032444.4 link	c.5477G>T	p.Arg1826Leu	missense_variant	Exon 15 of 15	ENST00000294008.4	NP_115820.2	Q8IY92-1
SLX4	XM_024450471.2 link	c.5477G>T	p.Arg1826Leu	missense_variant	Exon 15 of 15		XP_024306239.1
SLX4	XM_011522715.4 link	c.5474G>T	p.Arg1825Leu	missense_variant	Exon 15 of 15		XP_011521017.1
SLX4	XM_047434801.1 link	c.4475G>T	p.Arg1492Leu	missense_variant	Exon 11 of 11		XP_047290757.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLX4	ENST00000294008.4 link	c.5477G>T	p.Arg1826Leu	missense_variant	Exon 15 of 15	5	NM_032444.4	ENSP00000294008.3		Q8IY92-1
ENSG00000261938	ENST00000573982.1 link	n.199-766C>A		intron_variant	Intron 1 of 1	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460812

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726736

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33454

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86222

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52982

Middle Eastern (MID)

AF:

0.000190

AC:

AN:

5266

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111998

Other (OTH)

AF:

0.00

AC:

AN:

60334

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.275

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.68

CADD

Benign

0.0050

(source)

DANN

Benign

0.79

DEOGEN2

Benign

0.017

Eigen

Benign

-1.9

Eigen_PC

Benign

-2.0

FATHMM_MKL

Benign

0.044

LIST_S2

Benign

0.46

M_CAP

Benign

0.0082

MetaRNN

Benign

0.029

MetaSVM

Benign

-0.96

MutationAssessor

Benign

0.60

PhyloP100

-2.0

PrimateAI

Benign

0.22

PROVEAN

Benign

-0.13

REVEL

Benign

0.017

Sift

Benign

0.37

Sift4G

Benign

0.35

Polyphen

0.022

Vest4

0.10

MutPred

0.32

Loss of solvent accessibility (P = 3e-04);

MVP

0.055

MPC

0.068

ClinPred

0.078

GERP RS

-11

Varity_R

0.023

gMVP

0.30

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over