rs1207697890

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_016169.4(SUFU):​c.55G>A​(p.Gly19Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000659 in 151,664 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G19V) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

SUFU
NM_016169.4 missense

Scores

1
4
14

Clinical Significance

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

Conservation

PhyloP100: 2.48
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.16199607).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SUFUNM_016169.4 linkc.55G>A p.Gly19Ser missense_variant Exon 1 of 12 ENST00000369902.8 NP_057253.2 Q9UMX1-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SUFUENST00000369902.8 linkc.55G>A p.Gly19Ser missense_variant Exon 1 of 12 1 NM_016169.4 ENSP00000358918.4 Q9UMX1-1
SUFUENST00000423559.2 linkc.55G>A p.Gly19Ser missense_variant Exon 1 of 10 1 ENSP00000411597.2 Q9UMX1-3
SUFUENST00000369899.6 linkc.55G>A p.Gly19Ser missense_variant Exon 1 of 11 1 ENSP00000358915.2 Q9UMX1-2

Frequencies

GnomAD3 genomes
AF:
0.00000659
AC:
1
AN:
151664
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000289
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1438996
Hom.:
0
Cov.:
50
AF XY:
0.00
AC XY:
0
AN XY:
713446
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000659
AC:
1
AN:
151664
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74062
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000289
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

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
Jan 26, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 19 of the SUFU protein (p.Gly19Ser). This variant is not present in population databases (gnomAD no frequency). 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: 524665). 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: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). 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
Jan 27, 2023
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.G19S variant (also known as c.55G>A), located in coding exon 1 of the SUFU gene, results from a G to A substitution at nucleotide position 55. The glycine at codon 19 is replaced by serine, an amino acid with similar properties. This amino acid position is well 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
0.098
BayesDel_addAF
Uncertain
0.047
T
BayesDel_noAF
Benign
-0.17
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.15
T;.;.
Eigen
Benign
-0.39
Eigen_PC
Benign
-0.19
FATHMM_MKL
Benign
0.66
D
LIST_S2
Uncertain
0.90
D;D;D
M_CAP
Uncertain
0.19
D
MetaRNN
Benign
0.16
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.69
N;N;N
PrimateAI
Pathogenic
0.88
D
PROVEAN
Benign
0.32
N;N;N
REVEL
Benign
0.092
Sift
Benign
0.078
T;T;D
Sift4G
Benign
0.51
T;T;T
Polyphen
0.0090
B;B;B
Vest4
0.31
MutPred
0.16
Gain of glycosylation at G19 (P = 2e-04);Gain of glycosylation at G19 (P = 2e-04);Gain of glycosylation at G19 (P = 2e-04);
MVP
0.55
MPC
1.4
ClinPred
0.89
D
GERP RS
4.4
Varity_R
0.12
gMVP
0.31

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: rs1207697890; hg19: chr10-104263964; API