NM_018343.3:c.1520G>A

Variant names:

• chr5-97163200-C-T
• rs34555783
• NM_018343.3:c.1520G>A

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BS1 BS2

The NM_018343.3(RIOK2):​c.1520G>A​(p.Arg507His) variant causes a missense change. The variant allele was found at a frequency of 0.00247 in 1,613,396 control chromosomes in the GnomAD database, including 74 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: 𝑓 0.012 (38 hom., cov: 32)
  • Exomes 𝑓: 0.0014 (36 hom.)
• Consequence: RIOK2 NM_018343.3 missense
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 5.80
• Publications: 5 publications found

Genes affected

RIOK2 (HGNC:18999): (RIO kinase 2) Predicted to enable protein kinase activity. Involved in several processes, including positive regulation of rRNA processing; positive regulation of ribosomal small subunit export from nucleus; and regulation of mitotic metaphase/anaphase transition. Located in cytoplasm. Part of preribosome, small subunit precursor. [provided by Alliance of Genome Resources, Apr 2022]

LIX1-AS1 (HGNC:52976): (LIX1 and RIOK2 antisense RNA 1)

ACMG classification

Our verdict: Benign. The variant received -14 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.0051208735).
• BP6: Variant 5-97163200-C-T is Benign according to our data. Variant chr5-97163200-C-T is described in ClinVar as Benign. ClinVar VariationId is 768022.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS1: Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0125 (1896/152250) while in subpopulation AFR AF = 0.0422 (1754/41544). AF 95% confidence interval is 0.0406. There are 38 homozygotes in GnomAd4. There are 927 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
• BS2: High Homozygotes in GnomAd4 at 38 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018343.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RIOK2	NM_018343.3	MANE Select	c.1520G>A	p.Arg507His	missense	Exon 10 of 10	NP_060813.2	Q9BVS4-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RIOK2	ENST00000283109.8	TSL:1 MANE Select	c.1520G>A	p.Arg507His	missense	Exon 10 of 10	ENSP00000283109.3	Q9BVS4-1
	RIOK2	ENST00000924329.1		c.1517G>A	p.Arg506His	missense	Exon 10 of 10	ENSP00000594388.1
	RIOK2	ENST00000924331.1		c.1517G>A	p.Arg506His	missense	Exon 10 of 10	ENSP00000594390.1

Frequencies

GnomAD3 genomes AF: 0.0124 AC: 1886 AN: 152132 Hom.: 38 Cov.: 32

Gnomad AFR AF: 0.0421

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00622

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.000397

Gnomad OTH AF: 0.00909

GnomAD2 exomes AF: 0.00331 AC: 822 AN: 248654 AF XY: 0.00237

Gnomad AFR exome AF: 0.0438

Gnomad AMR exome AF: 0.00206

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000216

Gnomad OTH exome AF: 0.00213

GnomAD4 exome AF: 0.00143 AC: 2093 AN: 1461146 Hom.: 36 Cov.: 32 AF XY: 0.00125 AC XY: 905 AN XY: 726888

African (AFR) AF: 0.0461 AC: 1542 AN: 33428

American (AMR) AF: 0.00260 AC: 116 AN: 44690

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26128

East Asian (EAS) AF: 0.00 AC: 0 AN: 39600

South Asian (SAS) AF: 0.0000928 AC: 8 AN: 86190

European-Finnish (FIN) AF: 0.0000376 AC: 2 AN: 53210

Middle Eastern (MID) AF: 0.00417 AC: 24 AN: 5758

European-Non Finnish (NFE) AF: 0.000188 AC: 209 AN: 1111774

Other (OTH) AF: 0.00318 AC: 192 AN: 60368

GnomAD4 genome AF: 0.0125 AC: 1896 AN: 152250 Hom.: 38 Cov.: 32 AF XY: 0.0125 AC XY: 927 AN XY: 74434

African (AFR) AF: 0.0422 AC: 1754 AN: 41544

American (AMR) AF: 0.00621 AC: 95 AN: 15292

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5188

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10594

Middle Eastern (MID) AF: 0.00340 AC: 1 AN: 294

European-Non Finnish (NFE) AF: 0.000397 AC: 27 AN: 68012

Other (OTH) AF: 0.00900 AC: 19 AN: 2112

Alfa AF: 0.00458 Hom.: 50

Bravo AF: 0.0152

TwinsUK AF: 0.00 AC: 0

ALSPAC AF: 0.000259 AC: 1

ESP6500AA AF: 0.0422 AC: 186

ESP6500EA AF: 0.000233 AC: 2

ExAC AF: 0.00390 AC: 473

Asia WGS AF: 0.00115 AC: 4 AN: 3476

EpiCase AF: 0.000600

EpiControl AF: 0.000474

ClinVar

ClinVar submissions

Significance: Benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.099
BayesDel_addAF	Benign	-0.46	T
BayesDel_noAF	Benign	-0.41
CADD	Pathogenic	29
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.030	T
Eigen	Uncertain	0.50
Eigen_PC	Uncertain	0.48
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Uncertain	0.88	D
MetaRNN	Benign	0.0051	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.8	M
PhyloP100		5.8
PrimateAI	Uncertain	0.60	T
PROVEAN	Uncertain	-2.8	D
REVEL	Benign	0.15
Sift	Uncertain	0.025	D
Sift4G	Uncertain	0.056	T
Polyphen		1.0	D
Vest4		0.44
MVP		0.66
MPC		0.67
ClinPred		0.035	T
GERP RS		4.8
Varity_R		0.48
gMVP		0.21
Mutation Taster		=68/32	polymorphism

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

Other links and lift over

dbSNP: rs34555783; hg19: chr5-96498904;