11-214421-G-C

Position:

• chr11-214421-G-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001286134.2(RIC8A):​c.*71G>C variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.197 in 1,542,762 control chromosomes in the GnomAD database, including 31,115 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.17 (2479 hom., cov: 32)
  • Exomes 𝑓: 0.20 (28636 hom.)
• Consequence: RIC8A NM_001286134.2 3_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.10

Genes affected

RIC8A (HGNC:29550): (RIC8 guanine nucleotide exchange factor A) Predicted to enable G-protein alpha-subunit binding activity; GTPase activator activity; and guanyl-nucleotide exchange factor activity. Predicted to be involved in G protein-coupled receptor signaling pathway. Predicted to act upstream of or within several processes, including basement membrane organization; gastrulation; and visual learning. Predicted to be located in membrane. Predicted to be active in cytoplasm and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.21 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RIC8A	NM_001286134.2	c.*71G>C		3_prime_UTR_variant	10/10	ENST00000526104.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RIC8A	ENST00000526104.6	c.*71G>C		3_prime_UTR_variant	10/10	1	NM_001286134.2	P4

Frequencies

GnomAD3 genomes AF: 0.169 AC: 25714 AN: 151914 Hom.: 2478 Cov.: 32

Gnomad AFR AF: 0.0841

Gnomad AMI AF: 0.379

Gnomad AMR AF: 0.159

Gnomad ASJ AF: 0.252

Gnomad EAS AF: 0.112

Gnomad SAS AF: 0.154

Gnomad FIN AF: 0.223

Gnomad MID AF: 0.234

Gnomad NFE AF: 0.213

Gnomad OTH AF: 0.191

GnomAD3 exomes AF: 0.175 AC: 27065 AN: 154812 Hom.: 2611 AF XY: 0.178 AC XY: 14538 AN XY: 81602

Gnomad AFR exome AF: 0.0759

Gnomad AMR exome AF: 0.113

Gnomad ASJ exome AF: 0.263

Gnomad EAS exome AF: 0.0971

Gnomad SAS exome AF: 0.151

Gnomad FIN exome AF: 0.223

Gnomad NFE exome AF: 0.213

Gnomad OTH exome AF: 0.192

GnomAD4 exome AF: 0.200 AC: 277749 AN: 1390730 Hom.: 28636 Cov.: 28 AF XY: 0.199 AC XY: 136868 AN XY: 686604

Gnomad4 AFR exome AF: 0.0822

Gnomad4 AMR exome AF: 0.120

Gnomad4 ASJ exome AF: 0.259

Gnomad4 EAS exome AF: 0.136

Gnomad4 SAS exome AF: 0.148

Gnomad4 FIN exome AF: 0.213

Gnomad4 NFE exome AF: 0.210

Gnomad4 OTH exome AF: 0.195

GnomAD4 genome AF: 0.169 AC: 25715 AN: 152032 Hom.: 2479 Cov.: 32 AF XY: 0.169 AC XY: 12570 AN XY: 74300

Gnomad4 AFR AF: 0.0844

Gnomad4 AMR AF: 0.158

Gnomad4 ASJ AF: 0.252

Gnomad4 EAS AF: 0.112

Gnomad4 SAS AF: 0.153

Gnomad4 FIN AF: 0.223

Gnomad4 NFE AF: 0.213

Gnomad4 OTH AF: 0.189

Alfa AF: 0.150 Hom.: 458

Bravo AF: 0.161

Asia WGS AF: 0.129 AC: 451 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	0.095
DANN	Benign	0.61
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

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: rs3216; hg19: chr11-214421; COSMIC: COSV57342826; COSMIC: COSV57342826;