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rs199673680

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP2BS2

The NM_016169.4(SUFU):​c.671G>A​(p.Arg224Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000118 in 1,614,180 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R224W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

SUFU
NM_016169.4 missense

Scores

2
8
9

Clinical Significance

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

Conservation

PhyloP100: 9.60
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP2
Missense variant where missense usually causes diseases, SUFU
BS2
High AC in GnomAdExome4 at 15 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SUFUNM_016169.4 linkuse as main transcriptc.671G>A p.Arg224Gln missense_variant 5/12 ENST00000369902.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SUFUENST00000369902.8 linkuse as main transcriptc.671G>A p.Arg224Gln missense_variant 5/121 NM_016169.4 P1Q9UMX1-1
SUFUENST00000423559.2 linkuse as main transcriptc.671G>A p.Arg224Gln missense_variant 5/101 Q9UMX1-3
SUFUENST00000369899.6 linkuse as main transcriptc.671G>A p.Arg224Gln missense_variant 5/111 Q9UMX1-2
SUFUENST00000471000.1 linkuse as main transcriptn.453G>A non_coding_transcript_exon_variant 3/65

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152218
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251196
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135784
show subpopulations
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:
0.0000103
AC:
15
AN:
1461844
Hom.:
0
Cov.:
31
AF XY:
0.00000963
AC XY:
7
AN XY:
727228
show subpopulations
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:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000117
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152336
Hom.:
0
Cov.:
32
AF XY:
0.0000268
AC XY:
2
AN XY:
74492
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000740
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Gorlin syndrome;C0025149:Medulloblastoma Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeJan 04, 2024This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 224 of the SUFU protein (p.Arg224Gln). This variant is present in population databases (rs199673680, gnomAD 0.006%). 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: 453972). 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 with a negative predictive value of 80%. 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. -
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJun 23, 2023The p.R224Q variant (also known as c.671G>A), located in coding exon 5 of the SUFU gene, results from a G to A substitution at nucleotide position 671. The arginine at codon 224 is replaced by glutamine, an amino acid with highly similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Uncertain
0.12
D
BayesDel_noAF
Uncertain
0.10
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Benign
0.26
T;.;.
Eigen
Uncertain
0.41
Eigen_PC
Uncertain
0.52
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Pathogenic
0.97
D;D;D
M_CAP
Benign
0.058
D
MetaRNN
Uncertain
0.72
D;D;D
MetaSVM
Benign
-0.42
T
MutationAssessor
Benign
0.95
L;L;L
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.63
T
PROVEAN
Benign
-1.4
N;N;N
REVEL
Uncertain
0.45
Sift
Benign
0.069
T;T;T
Sift4G
Benign
0.13
T;T;T
Polyphen
0.95
P;P;P
Vest4
0.87
MVP
0.83
MPC
0.95
ClinPred
0.50
T
GERP RS
6.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.43
gMVP
0.71

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs199673680; hg19: chr10-104353466; COSMIC: COSV64015852; COSMIC: COSV64015852; API