chr6-35237921-C-G

Position:

• chr6-35237921-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2 PP2 PP3_Moderate

The NM_152753.4(SCUBE3):​c.732C>G​(p.Asn244Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SCUBE3 NM_152753.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.994

Genes affected

SCUBE3 (HGNC:13655): (signal peptide, CUB domain and EGF like domain containing 3) This gene encodes a member of the signal peptide, complement subcomponents C1r/C1s, Uegf, bone morphogenetic protein-1 and epidermal growth factor-like domain containing protein family. Overexpression of this gene in human embryonic kidney cells results in secretion of a glycosylated form of the protein that forms oligomers and tethers to the cell surface. This gene is upregulated in lung cancer tumor tissue compared to healthy tissue and is associated with loss of the epithelial marker E-cadherin and with increased expression of vimentin, a mesenchymal marker. In addition, the protein encoded by this gene is a transforming growth factor beta receptor ligand, and when secreted by cancer cells, it can be cleaved in vitro to release the N-terminal epidermal growth factor-like repeat domain and the C-terminal complement subcomponents C1r/C1s domain. Both the full length protein and C-terminal fragment can bind to the transforming growth factor beta type II receptor to promote the epithelial-mesenchymal transition and tumor angiogenesis. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2014]

SCUBE3-AS1 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 5 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), SCUBE3. . Gene score misZ 2.6996 (greater than the threshold 3.09). Trascript score misZ 3.1823 (greater than threshold 3.09). GenCC has associacion of gene with short stature, facial dysmorphism, and skeletal anomalies with or without cardiac anomalies 2.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.89

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SCUBE3	NM_152753.4	c.732C>G	p.Asn244Lys	missense_variant	7/22	ENST00000274938.8	NP_689966.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SCUBE3	ENST00000274938.8	c.732C>G	p.Asn244Lys	missense_variant	7/22	1	NM_152753.4	ENSP00000274938.7

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Inborn genetic diseases Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 01, 2024

The c.732C>G (p.N244K) alteration is located in exon 7 (coding exon 7) of the SCUBE3 gene. This alteration results from a C to G substitution at nucleotide position 732, causing the asparagine (N) at amino acid position 244 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.97
BayesDel_addAF	Uncertain	0.14	D
BayesDel_noAF	Uncertain	-0.040
CADD	Benign	16
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.78	D
Eigen	Benign	-0.091
Eigen_PC	Benign	-0.20
FATHMM_MKL	Benign	0.38	N
LIST_S2	Benign	0.85	D
M_CAP	Pathogenic	0.35	D
MetaRNN	Pathogenic	0.89	D
MetaSVM	Pathogenic	0.87	D
MutationAssessor	Uncertain	2.4	M
PrimateAI	Uncertain	0.78	T
PROVEAN	Pathogenic	-5.6	D
REVEL	Pathogenic	0.69
Sift	Uncertain	0.0070	D
Sift4G	Uncertain	0.0020	D
Polyphen		0.90	P
Vest4		0.87
MutPred		0.67		Gain of methylation at N244 (P = 0.0127);
MVP		0.92
MPC		1.3
ClinPred		1.0	D
GERP RS		-0.089
Varity_R		0.72
gMVP		0.94

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr6-35205698;