rs193921097

Positions:

• chr10-102597258-G-A
• chr10-102597258-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP2 PP3

The NM_016169.4(SUFU):​c.875G>A​(p.Cys292Tyr) 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. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: SUFU NM_016169.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:2
• Conservation: PhyloP100: 9.60

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 Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• 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.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.784

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SUFU	NM_016169.4	c.875G>A	p.Cys292Tyr	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.875G>A	p.Cys292Tyr	missense_variant	7/12	1	NM_016169.4	ENSP00000358918	P1
SUFU	ENST00000423559.2	c.875G>A	p.Cys292Tyr	missense_variant	7/10	1		ENSP00000411597
SUFU	ENST00000369899.6	c.875G>A	p.Cys292Tyr	missense_variant	7/11	1		ENSP00000358915
SUFU	ENST00000471000.1	n.657G>A		non_coding_transcript_exon_variant	5/6	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, single submitter

Submissions by phenotype

Gorlin syndrome;C0025149:Medulloblastoma Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Mar 05, 2022

This variant is not present in population databases (gnomAD no frequency). This sequence change replaces cysteine, which is neutral and slightly polar, with tyrosine, which is neutral and polar, at codon 292 of the SUFU protein (p.Cys292Tyr). This variant has not been reported in the literature in individuals affected with SUFU-related conditions. 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. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). ClinVar contains an entry for this variant (Variation ID: 161552). -

Malignant tumor of prostate Uncertain:1

Uncertain significance, no assertion criteria provided

literature only

Science for Life laboratory, Karolinska Institutet

-

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.35
BayesDel_addAF	Pathogenic	0.24	D
BayesDel_noAF	Uncertain	0.11
CADD	Pathogenic	28
DANN	Benign	0.92
DEOGEN2	Benign	0.22	T;.;.
Eigen	Uncertain	0.53
Eigen_PC	Uncertain	0.63
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.95	D;D;D
M_CAP	Benign	0.023	T
MetaRNN	Pathogenic	0.78	D;D;D
MetaSVM	Benign	-0.97	T
MutationAssessor	Benign	1.4	L;L;L
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Pathogenic	0.84	D
PROVEAN	Benign	-1.0	N;N;N
REVEL	Uncertain	0.39
Sift	Benign	0.32	T;T;T
Sift4G	Benign	0.39	T;T;T
Polyphen		0.99	D;D;P
Vest4		0.90
MutPred		0.59		Gain of phosphorylation at C292 (P = 0.014);Gain of phosphorylation at C292 (P = 0.014);Gain of phosphorylation at C292 (P = 0.014);
MVP		0.54
MPC		1.6
ClinPred		0.84	D
GERP RS		6.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.28
gMVP		0.69

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: rs193921097; hg19: chr10-104357015; COSMIC: COSV64014140;