1-35888584-G-A

Variant names:

• chr1-35888584-G-A
• rs74665168
• NM_012199.5:c.183G>A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BS1 BS2

The NM_012199.5(AGO1):​c.183G>A​(p.Pro61Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000792 in 1,614,128 control chromosomes in the GnomAD database, including 19 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. P61P) has been classified as Benign.

• Frequency:
  • Genomes: 𝑓 0.0013 (2 hom., cov: 32)
  • Exomes 𝑓: 0.00074 (17 hom.)
• Consequence: AGO1 NM_012199.5 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:3
• Conservation: PhyloP100: -5.21

Genes affected

AGO1 (HGNC:3262): (argonaute RISC component 1) This gene encodes a member of the argonaute family of proteins, which associate with small RNAs and have important roles in RNA interference (RNAi) and RNA silencing. This protein binds to microRNAs (miRNAs) or small interfering RNAs (siRNAs) and represses translation of mRNAs that are complementary to them. It is also involved in transcriptional gene silencing (TGS) of promoter regions that are complementary to bound short antigene RNAs (agRNAs), as well as in the degradation of miRNA-bound mRNA targets. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. A recent study showed this gene to be an authentic stop codon readthrough target, and that its mRNA could give rise to an additional C-terminally extended isoform by use of an alternative in-frame translation termination codon. [provided by RefSeq, Nov 2015]

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.72).
• BP6: Variant 1-35888584-G-A is Benign according to our data. Variant chr1-35888584-G-A is described in ClinVar as [Benign]. Clinvar id is 791606.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=-5.21 with no splicing effect.
• BS1: Variant frequency is greater than expected in population amr. gnomad4_exome allele frequency = 0.000742 (1084/1461860) while in subpopulation AMR AF= 0.0205 (918/44724). AF 95% confidence interval is 0.0194. There are 17 homozygotes in gnomad4_exome. There are 463 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 194 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AGO1	NM_012199.5	c.183G>A	p.Pro61Pro	synonymous_variant	Exon 2 of 19	ENST00000373204.6	NP_036331.1
AGO1	NM_001317122.2	c.183G>A	p.Pro61Pro	synonymous_variant	Exon 2 of 19		NP_001304051.1
AGO1	XM_011541236.3	c.183G>A	p.Pro61Pro	synonymous_variant	Exon 2 of 19		XP_011539538.1
AGO1	NM_001317123.2	c.-43G>A		5_prime_UTR_variant	Exon 2 of 19		NP_001304052.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AGO1	ENST00000373204.6	c.183G>A	p.Pro61Pro	synonymous_variant	Exon 2 of 19	1	NM_012199.5	ENSP00000362300.4

Frequencies

GnomAD3 genomes AF: 0.00128 AC: 194 AN: 152150 Hom.: 2 Cov.: 32

Gnomad AFR AF: 0.000579

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0105

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000192

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000735

Gnomad OTH AF: 0.00143

GnomAD3 exomes AF: 0.00305 AC: 767 AN: 251316 Hom.: 17 AF XY: 0.00236 AC XY: 320 AN XY: 135828

Gnomad AFR exome AF: 0.000369

Gnomad AMR exome AF: 0.0211

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000272

Gnomad SAS exome AF: 0.0000980

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000792

Gnomad OTH exome AF: 0.00261

GnomAD4 exome AF: 0.000742 AC: 1084 AN: 1461860 Hom.: 17 Cov.: 31 AF XY: 0.000637 AC XY: 463 AN XY: 727230

Gnomad4 AFR exome AF: 0.000269

Gnomad4 AMR exome AF: 0.0205

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.000731

Gnomad4 SAS exome AF: 0.000162

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000674

Gnomad4 OTH exome AF: 0.000596

GnomAD4 genome AF: 0.00127 AC: 194 AN: 152268 Hom.: 2 Cov.: 32 AF XY: 0.00114 AC XY: 85 AN XY: 74456

Gnomad4 AFR AF: 0.000578

Gnomad4 AMR AF: 0.0105

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000193

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000735

Gnomad4 OTH AF: 0.00142

Alfa AF: 0.000170 Hom.: 0

Bravo AF: 0.00235

EpiCase AF: 0.0000545

EpiControl AF: 0.000178

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Dec 31, 2019	- -
Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -

AGO1-related disorder Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Jun 06, 2024

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.72
CADD	Benign	4.5
DANN	Benign	0.70

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

LitVar

Other links and lift over

dbSNP: rs74665168; hg19: chr1-36354185;