10-102550019-C-T

Variant names:

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_016169.4(SUFU):c.367C>T(p.Arg123Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,884 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a damaging 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. R123H) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SUFU
NM_016169.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2O:1

Conservation

PhyloP100: 3.64

Publications

13 publications found

Variant links:

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]

SUFU Gene-Disease associations (from GenCC):

medulloblastoma
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen
nevoid basal cell carcinoma syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Illumina, Genomics England PanelApp
basal cell nevus syndrome 2
Inheritance: AD Classification: STRONG Submitted by: G2P
ocular motor apraxia, Cogan type
Inheritance: AD Classification: STRONG Submitted by: Franklin by Genoox
Joubert syndrome 32
Inheritance: AR Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
Joubert syndrome
Inheritance: AR, AD Classification: MODERATE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics
apraxia
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
ciliopathy
Inheritance: AR Classification: LIMITED Submitted by: ClinGen

SUFU links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.981

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SUFU	NM_016169.4 link	c.367C>T	p.Arg123Cys	missense_variant	Exon 3 of 12	ENST00000369902.8	NP_057253.2	Q9UMX1-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SUFU	ENST00000369902.8 link	c.367C>T	p.Arg123Cys	missense_variant	Exon 3 of 12	1	NM_016169.4	ENSP00000358918.4	Q9UMX1-1
SUFU	ENST00000423559.2 link	c.367C>T	p.Arg123Cys	missense_variant	Exon 3 of 10	1		ENSP00000411597.2	Q9UMX1-3
SUFU	ENST00000369899.6 link	c.367C>T	p.Arg123Cys	missense_variant	Exon 3 of 11	1		ENSP00000358915.2	Q9UMX1-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461884

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727238

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112004

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

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

Significance: Uncertain significance

Submissions summary: Uncertain:2Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

See cases

Uncertain:1

Oct 30, 2024

Institute of Human Genetics, University Hospital Muenster

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

ACMG categories: PS3,PM2_sup,PP2,PP3 -

Hereditary cancer-predisposing syndrome

Uncertain:1

Sep 20, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.R123C variant (also known as c.367C>T), located in coding exon 3 of the SUFU gene, results from a C to T substitution at nucleotide position 367. The arginine at codon 123 is replaced by cysteine, an amino acid with highly dissimilar properties. This alteration was identified in multiple individuals from one family diagnosed with meningiomas (Aavikko M et al. Am J Hum Genet, 2012 Sep;91:520-6). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Familial meningioma

Other:1

Sep 07, 2012

OMIM

Significance:risk factor

Review Status:no assertion criteria provided

Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.98

BayesDel_addAF

Pathogenic

0.44

BayesDel_noAF

Pathogenic

0.39

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Pathogenic

0.90

D;.;.

Eigen

Pathogenic

0.85

Eigen_PC

Pathogenic

0.77

FATHMM_MKL

Uncertain

0.95

LIST_S2

Pathogenic

0.99

D;D;D

M_CAP

Pathogenic

0.34

MetaRNN

Pathogenic

0.98

D;D;D

MetaSVM

Pathogenic

0.85

MutationAssessor

Pathogenic

3.7

H;H;H

PhyloP100

3.6

PrimateAI

Pathogenic

0.89

PROVEAN

Pathogenic

-7.4

D;D;D

REVEL

Pathogenic

0.92

Sift

Pathogenic

0.0

D;D;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

1.0

D;D;D

Vest4

0.98

MutPred

0.89

Gain of catalytic residue at L124 (P = 0.0087);Gain of catalytic residue at L124 (P = 0.0087);Gain of catalytic residue at L124 (P = 0.0087);

MVP

0.94

MPC

1.9

ClinPred

1.0

GERP RS

5.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.93

gMVP

0.92

Mutation Taster

=13/87

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.12

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

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over