3-8733862-C-A

Position:

• chr3-8733862-C-A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BS1 BS2

The NM_033337.3(CAV3):​c.-15C>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000321 in 1,521,112 control chromosomes in the GnomAD database, including 10 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: 𝑓 0.00012 (0 hom., cov: 31)
  • Exomes 𝑓: 0.00034 (10 hom.)
• Consequence: CAV3 NM_033337.3 5_prime_UTR
• Clinical Significance: Benign criteria provided, single submitter B:1 O:1
• Conservation: PhyloP100: 0.534

Genes affected

CAV3 (HGNC:1529): (caveolin 3) This gene encodes a caveolin family member, which functions as a component of the caveolae plasma membranes found in most cell types. Caveolin proteins are proposed to be scaffolding proteins for organizing and concentrating certain caveolin-interacting molecules. Mutations identified in this gene lead to interference with protein oligomerization or intra-cellular routing, disrupting caveolae formation and resulting in Limb-Girdle muscular dystrophy type-1C (LGMD-1C), hyperCKemia or rippling muscle disease (RMD). Alternative splicing has been identified for this locus, with inclusion or exclusion of a differentially spliced intron. In addition, transcripts utilize multiple polyA sites and contain two potential translation initiation sites. [provided by RefSeq, Jul 2008]

SSUH2 (HGNC:):

SSUH2 (HGNC:24809): (ssu-2 homolog) Involved in odontogenesis. Located in cytoplasm and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.83).
• BP6: Variant 3-8733862-C-A is Benign according to our data. Variant chr3-8733862-C-A is described in ClinVar as [Benign]. Clinvar id is 136660.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS1: Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000118 (18/152180) while in subpopulation SAS AF= 0.00291 (14/4812). AF 95% confidence interval is 0.00176. There are 0 homozygotes in gnomad4. There are 14 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 18 AD,Digenic gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CAV3	NM_033337.3	c.-15C>A		5_prime_UTR_variant	1/2	ENST00000343849.3	NP_203123.1
CAV3	NM_001234.5	c.-15C>A		5_prime_UTR_variant	1/3		NP_001225.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CAV3	ENST00000343849	c.-15C>A		5_prime_UTR_variant	1/2	1	NM_033337.3	ENSP00000341940.2

Frequencies

GnomAD3 genomes AF: 0.000118 AC: 18 AN: 152062 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.0000242

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00291

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.0000294

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.000703 AC: 175 AN: 248838 Hom.: 3 AF XY: 0.000870 AC XY: 117 AN XY: 134490

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00502

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000133

Gnomad OTH exome AF: 0.00131

GnomAD4 exome AF: 0.000343 AC: 470 AN: 1368932 Hom.: 10 Cov.: 23 AF XY: 0.000472 AC XY: 324 AN XY: 686126

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000225

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00451

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000458

Gnomad4 OTH exome AF: 0.000488

GnomAD4 genome AF: 0.000118 AC: 18 AN: 152180 Hom.: 0 Cov.: 31 AF XY: 0.000188 AC XY: 14 AN XY: 74398

Gnomad4 AFR AF: 0.0000241

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00291

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000294

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000434 Hom.: 0

Bravo AF: 0.0000416

ClinVar

Significance: Benign

Submissions summary: Benign:1 Other:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Benign:1 Other:1

not provided, no classification provided	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Aug 11, 2013	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	May 18, 2014	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.83
CADD	Benign	4.6
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: rs569240109; hg19: chr3-8775548;