10-102597231-A-G

Position:

• chr10-102597231-A-G

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2 BP4 BP6 BS2

The ENST00000369902.8(SUFU):​c.848A>G​(p.Glu283Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000185 in 1,461,826 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E283A) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.000018 (0 hom.)
• Consequence: SUFU ENST00000369902.8 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2 B:1
• Conservation: PhyloP100: 8.95

Genes affected

SUFU (HGNC:16466): (SUFU negative regulator of hedgehog signaling) The Hedgehog signaling pathway plays an important role in early human development. The pathway is a signaling cascade that plays a role in pattern formation and cellular proliferation during development. This gene encodes a negative regulator of the hedgehog signaling pathway. Defects in this gene are a cause of medulloblastoma. Alternative splicing results in multiple transcript variants.[provided by RefSeq, May 2010]

ACMG classification

Verdict is Likely_benign. Variant got -5 ACMG points.

• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), SUFU. . Gene score misZ 1.9341 (greater than the threshold 3.09). Trascript score misZ 3.1202 (greater than threshold 3.09). GenCC has associacion of gene with apraxia, ciliopathy, ocular motor apraxia, Cogan type, nevoid basal cell carcinoma syndrome, Joubert syndrome, Joubert syndrome 32, medulloblastoma.
• BP4: Computational evidence support a benign effect (MetaRNN=0.38696274).
• BP6: Variant 10-102597231-A-G is Benign according to our data. Variant chr10-102597231-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 582319.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=2}.
• BS2: High AC in GnomAdExome4 at 27 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SUFU	NM_016169.4	c.848A>G	p.Glu283Gly	missense_variant	7/12	ENST00000369902.8	NP_057253.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SUFU	ENST00000369902.8	c.848A>G	p.Glu283Gly	missense_variant	7/12	1	NM_016169.4	ENSP00000358918	P1
SUFU	ENST00000423559.2	c.848A>G	p.Glu283Gly	missense_variant	7/10	1		ENSP00000411597
SUFU	ENST00000369899.6	c.848A>G	p.Glu283Gly	missense_variant	7/11	1		ENSP00000358915
SUFU	ENST00000471000.1	n.630A>G		non_coding_transcript_exon_variant	5/6	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000795 AC: 2 AN: 251430 Hom.: 0 AF XY: 0.0000147 AC XY: 2 AN XY: 135896

Gnomad AFR exome AF: 0.00

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: 0.0000176

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000185 AC: 27 AN: 1461826 Hom.: 0 Cov.: 32 AF XY: 0.0000248 AC XY: 18 AN XY: 727214

Gnomad4 AFR exome AF: 0.00

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: 0.0000243

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000308 Hom.: 0

Bravo AF: 0.00000378

ExAC AF: 0.0000165 AC: 2

EpiCase AF: 0.00

EpiControl AF: 0.000119

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2 Benign:1

Revision: criteria provided, conflicting classifications

Submissions by phenotype

Gorlin syndrome;C0025149:Medulloblastoma Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Oct 23, 2023

This sequence change replaces glutamic acid, which is acidic and polar, with glycine, which is neutral and non-polar, at codon 283 of the SUFU protein (p.Glu283Gly). This variant is present in population databases (rs763598499, gnomAD 0.002%). This variant has not been reported in the literature in individuals affected with SUFU-related conditions. ClinVar contains an entry for this variant (Variation ID: 582319). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt SUFU 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. -

Familial meningioma Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Baylor Genetics

Mar 05, 2024

- -

Hereditary cancer-predisposing syndrome Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 17, 2024

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.23
BayesDel_addAF	Uncertain	0.058	T
BayesDel_noAF	Benign	-0.14
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Benign	0.19	T;.;.
Eigen	Uncertain	0.52
Eigen_PC	Uncertain	0.61
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.97	D;D;D
M_CAP	Benign	0.017	T
MetaRNN	Benign	0.39	T;T;T
MetaSVM	Benign	-0.80	T
MutationAssessor	Benign	1.4	L;L;L
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.67	T
PROVEAN	Benign	-0.89	N;N;N
REVEL	Benign	0.17
Sift	Benign	0.10	T;T;T
Sift4G	Benign	0.18	T;T;T
Polyphen		0.99	D;D;B
Vest4		0.69
MutPred		0.35		Loss of solvent accessibility (P = 0.0387);Loss of solvent accessibility (P = 0.0387);Loss of solvent accessibility (P = 0.0387);
MVP		0.25
MPC		0.80
ClinPred		0.59	D
GERP RS		6.0
Varity_R		0.11
gMVP		0.62

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

Other links and lift over

dbSNP: rs763598499; hg19: chr10-104356988;