rs1554854572

Variant names:

• chr10-102615306-C-G
• rs1554854572
• NM_016169.4:c.1061C>G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_016169.4(SUFU):​c.1061C>G​(p.Ala354Gly) 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 benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

• Frequency: Genomes: not found (cov: 31)
• Consequence: SUFU NM_016169.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:3
• Conservation: PhyloP100: 7.57

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 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.26607755).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SUFU	NM_016169.4	c.1061C>G	p.Ala354Gly	missense_variant	Exon 9 of 12	ENST00000369902.8	NP_057253.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SUFU	ENST00000369902.8	c.1061C>G	p.Ala354Gly	missense_variant	Exon 9 of 12	1	NM_016169.4	ENSP00000358918.4
SUFU	ENST00000423559.2	c.1061C>G	p.Ala354Gly	missense_variant	Exon 9 of 10	1		ENSP00000411597.2
SUFU	ENST00000369899.6	c.1061C>G	p.Ala354Gly	missense_variant	Exon 9 of 11	1		ENSP00000358915.2

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 31

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:2

Apr 19, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.A354G variant (also known as c.1061C>G), located in coding exon 9 of the SUFU gene, results from a C to G substitution at nucleotide position 1061. The alanine at codon 354 is replaced by glycine, an amino acid with similar properties. This amino acid position is conserved. 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. -

Jan 02, 2022

Sema4, Sema4

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: curation

- -

Gorlin syndrome;C0025149:Medulloblastoma Uncertain:1

May 06, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with glycine, which is neutral and non-polar, at codon 354 of the SUFU protein (p.Ala354Gly). 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: 524668). 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. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Uncertain	0.047	T
BayesDel_noAF	Benign	-0.17
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.12	T;.;.
Eigen	Benign	0.022
Eigen_PC	Benign	0.19
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Uncertain	0.89	D;D;D
M_CAP	Benign	0.016	T
MetaRNN	Benign	0.27	T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.5	L;L;L
PrimateAI	Uncertain	0.68	T
PROVEAN	Benign	0.29	N;N;N
REVEL	Benign	0.17
Sift	Benign	0.21	T;T;T
Sift4G	Benign	0.37	T;T;T
Polyphen		0.016	B;B;B
Vest4		0.46
MutPred		0.59		Loss of sheet (P = 0.0315);Loss of sheet (P = 0.0315);Loss of sheet (P = 0.0315);
MVP		0.58
MPC		0.62
ClinPred		0.83	D
GERP RS		5.3
Varity_R		0.11
gMVP		0.37

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: rs1554854572; hg19: chr10-104375063;