rs587778220

chr3-41234211-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2 PP2 BP4

The NM_001904.4(CTNNB1):c.1597A>G(p.Ile533Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,882 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: CTNNB1 NM_001904.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1 O:1
• Conservation: PhyloP100: 9.32

Genes affected

CTNNB1 (HGNC:2514): (catenin beta 1) The protein encoded by this gene is part of a complex of proteins that constitute adherens junctions (AJs). AJs are necessary for the creation and maintenance of epithelial cell layers by regulating cell growth and adhesion between cells. The encoded protein also anchors the actin cytoskeleton and may be responsible for transmitting the contact inhibition signal that causes cells to stop dividing once the epithelial sheet is complete. Finally, this protein binds to the product of the APC gene, which is mutated in adenomatous polyposis of the colon. Mutations in this gene are a cause of colorectal cancer (CRC), pilomatrixoma (PTR), medulloblastoma (MDB), and ovarian cancer. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2016]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, CTNNB1
• BP4: Computational evidence support a benign effect (MetaRNN=0.30104697).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CTNNB1	NM_001904.4	c.1597A>G	p.Ile533Val	missense_variant	10/15	ENST00000349496.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CTNNB1	ENST00000349496.11	c.1597A>G	p.Ile533Val	missense_variant	10/15	1	NM_001904.4	P4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461882 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727244

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: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1 Other:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Apr 11, 2023

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 24728327) -

not specified Other:1

not provided, no classification provided

reference population

ITMI

Sep 19, 2013

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Uncertain	0.043	T
BayesDel_noAF	Benign	-0.18
Cadd	Benign	22
Dann	Uncertain	0.99
DEOGEN2	Benign	0.39	T;T;T;T;T;T;T;T;T;T;T;.;T;T;T;T;T;.;T;T;T;T;.;.;.;T;T;.;T;T;T;T;.;T;T;T;T;T;T;T;.
Eigen	Benign	0.17
Eigen_PC	Uncertain	0.37
FATHMM_MKL	Pathogenic	1.0	D
M_CAP	Benign	0.0096	T
MetaRNN	Benign	0.30	T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM	Benign	-0.85	T
MutationAssessor	Benign	1.5	L;L;.;L;L;L;L;L;.;L;L;.;.;L;L;L;.;.;.;.;L;L;.;.;.;L;.;.;L;L;.;L;.;L;.;L;L;L;L;L;.
MutationTaster	Benign	1.0	D;D;D;D;D
PrimateAI	Pathogenic	0.82	D
Polyphen		0.0050	B;B;.;B;B;B;B;B;.;B;B;.;.;B;B;B;.;.;.;.;B;B;.;.;.;B;.;.;B;B;.;B;.;B;.;B;B;B;B;B;.
Vest4		0.35, 0.35, 0.32
MutPred		0.30		Gain of disorder (P = 0.1226);Gain of disorder (P = 0.1226);.;Gain of disorder (P = 0.1226);Gain of disorder (P = 0.1226);Gain of disorder (P = 0.1226);Gain of disorder (P = 0.1226);Gain of disorder (P = 0.1226);.;Gain of disorder (P = 0.1226);Gain of disorder (P = 0.1226);.;.;Gain of disorder (P = 0.1226);Gain of disorder (P = 0.1226);Gain of disorder (P = 0.1226);.;.;.;.;Gain of disorder (P = 0.1226);Gain of disorder (P = 0.1226);.;Gain of disorder (P = 0.1226);.;Gain of disorder (P = 0.1226);.;Gain of disorder (P = 0.1226);Gain of disorder (P = 0.1226);Gain of disorder (P = 0.1226);.;Gain of disorder (P = 0.1226);Gain of disorder (P = 0.1226);Gain of disorder (P = 0.1226);.;Gain of disorder (P = 0.1226);Gain of disorder (P = 0.1226);Gain of disorder (P = 0.1226);Gain of disorder (P = 0.1226);Gain of disorder (P = 0.1226);.;
MVP		0.83
MPC		0.94
ClinPred		0.65	D
GERP RS		6.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8
Varity_R		0.30
gMVP		0.63

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs587778220; hg19: chr3-41275702;