16-3589856-G-T

Variant names:

• chr16-3589856-G-T
• rs374056556
• NM_032444.4:c.3782C>A

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_032444.4(SLX4):​c.3782C>A​(p.Pro1261Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic 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. P1261L) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SLX4 NM_032444.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.24
• Publications: 2 publications found

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: ClinGen, G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae)
• Fanconi anemia

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• hereditary breast carcinoma

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
• familial ovarian cancer

  Inheritance: Unknown Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.83

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLX4	NM_032444.4	MANE Select	c.3782C>A	p.Pro1261Gln	missense	Exon 12 of 15	NP_115820.2	Q8IY92-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLX4	ENST00000294008.4	TSL:5 MANE Select	c.3782C>A	p.Pro1261Gln	missense	Exon 12 of 15	ENSP00000294008.3	Q8IY92-1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 37

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.48
BayesDel_addAF	Uncertain	0.15	D
BayesDel_noAF	Uncertain	-0.030
CADD	Uncertain	25
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.55	D
Eigen	Pathogenic	0.78
Eigen_PC	Pathogenic	0.76
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Benign	0.74	T
M_CAP	Uncertain	0.11	D
MetaRNN	Pathogenic	0.83	D
MetaSVM	Benign	-0.37	T
MutationAssessor	Benign	1.9	L
PhyloP100		7.2
PrimateAI	Benign	0.43	T
PROVEAN	Pathogenic	-5.2	D
REVEL	Uncertain	0.37
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.0080	D
Polyphen		1.0	D
Vest4		0.67
MutPred		0.39		Gain of helix (P = 0.0164)
MVP		0.81
MPC		0.35
ClinPred		1.0	D
GERP RS		6.1
Varity_R		0.62
gMVP		0.52

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

Other links and lift over

dbSNP: rs374056556; hg19: chr16-3639857; COSMIC: COSV99568831;