5-138781020-A-G

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_Moderate BP6 BS2

The NM_001903.5(CTNNA1):c.-2-903A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00102 in 152,318 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 Likely benign (no stars).

• Frequency: Genomes: 𝑓 0.0010 (0 hom., cov: 32)
• Consequence: CTNNA1 NM_001903.5 intron
• Clinical Significance: Likely benign no assertion criteria provided B:1
• Conservation: PhyloP100: 0.611

Genes affected

CTNNA1 (HGNC:2509): (catenin alpha 1) This gene encodes a member of the catenin family of proteins that play an important role in cell adhesion process by connecting cadherins located on the plasma membrane to the actin filaments inside the cell. The encoded mechanosensing protein contains three vinculin homology domains and undergoes conformational changes in response to cytoskeletal tension, resulting in the reconfiguration of cadherin-actin filament connections. Certain mutations in this gene cause butterfly-shaped pigment dystrophy. [provided by RefSeq, May 2016]

ACMG classification

Verdict is Benign. Variant got -7 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.36).
• BP6: Variant 5-138781020-A-G is Benign according to our data. Variant chr5-138781020-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 223695.Status of the report is no_assertion_criteria_provided, 0 stars.
• BS2: High AC in GnomAd at 156 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CTNNA1	NM_001903.5	c.-2-903A>G		intron_variant		ENST00000302763.12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CTNNA1	ENST00000302763.12	c.-2-903A>G		intron_variant		1	NM_001903.5	P1

Frequencies

GnomAD3 genomes AF: 0.00102 AC: 156 AN: 152200 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000290

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000524

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00104

Gnomad FIN AF: 0.00424

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00125

Gnomad OTH AF: 0.000478

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.00102 AC: 156 AN: 152318 Hom.: 0 Cov.: 32 AF XY: 0.00111 AC XY: 83 AN XY: 74482

Gnomad4 AFR AF: 0.000289

Gnomad4 AMR AF: 0.000523

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00104

Gnomad4 FIN AF: 0.00424

Gnomad4 NFE AF: 0.00125

Gnomad4 OTH AF: 0.000473

Alfa AF: 0.000265 Hom.: 0

Bravo AF: 0.000695

Asia WGS AF: 0.000577 AC: 2 AN: 3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

Submissions by phenotype

Hereditary cancer-predisposing syndrome Benign:1

Likely benign, no assertion criteria provided

clinical testing

University of Washington Department of Laboratory Medicine, University of Washington

Dec 01, 2015

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.36
Cadd	Benign	14
Dann	Benign	0.85

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: rs182027511; hg19: chr5-138116709;