2-27847050-T-C

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_022128.3(RBKS):c.341A>G(p.Asn114Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000811 in 1,602,782 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000076 ( 0 hom. )

Consequence

RBKS
NM_022128.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.16

Variant links:

Genes affected

RBKS (HGNC:30325): (ribokinase) This gene encodes a member of the carbohydrate kinase PfkB family. The encoded protein phosphorylates ribose to form ribose-5-phosphate in the presence of ATP and magnesium as a first step in ribose metabolism. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2013]

RBKS links:

MRPL33 (HGNC:14487): (mitochondrial ribosomal protein L33) Mammalian mitochondrial ribosomal proteins are encoded by nuclear genes and help in protein synthesis within the mitochondrion. Mitochondrial ribosomes (mitoribosomes) consist of a small 28S subunit and a large 39S subunit. They have an estimated 75% protein to rRNA composition compared to prokaryotic ribosomes, where this ratio is reversed. Another difference between mammalian mitoribosomes and prokaryotic ribosomes is that the latter contain a 5S rRNA. Among different species, the proteins comprising the mitoribosome differ greatly in sequence, and sometimes in biochemical properties, which prevents easy recognition by sequence homology. This gene encodes a 39S subunit protein. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]

MRPL33 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.26885158).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RBKS	NM_022128.3 link	c.341A>G	p.Asn114Ser	missense_variant	Exon 4 of 8	ENST00000302188.8	NP_071411.1	Q9H477-1
RBKS	NM_001287580.2 link	c.140A>G	p.Asn47Ser	missense_variant	Exon 5 of 9		NP_001274509.1	Q9H477

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
RBKS	ENST00000302188.8 link	c.341A>G	p.Asn114Ser	missense_variant	Exon 4 of 8	1	NM_022128.3	ENSP00000306817.3	Q9H477-1
RBKS	ENST00000449378.1 link	n.*1268A>G		non_coding_transcript_exon_variant	Exon 5 of 9	1		ENSP00000413789.1	E7EQ18
RBKS	ENST00000449378.1 link	n.*1268A>G		3_prime_UTR_variant	Exon 5 of 9	1		ENSP00000413789.1	E7EQ18
MRPL33	ENST00000448427.1 link	n.165-47483T>C		intron_variant	Intron 3 of 5	4		ENSP00000407385.1	F8WF37

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152230

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

250876

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135596

show subpopulations

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:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000758

AC:

AN:

1450552

Hom.:

Cov.:

AF XY:

0.00000277

AC XY:

AN XY:

722338

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000726

Gnomad4 OTH exome

AF:

0.0000167

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152230

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74374

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000868

Hom.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 03, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.341A>G (p.N114S) alteration is located in exon 4 (coding exon 4) of the RBKS gene. This alteration results from a A to G substitution at nucleotide position 341, causing the asparagine (N) at amino acid position 114 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.52

CADD

Benign

DANN

Benign

0.91

DEOGEN2

Uncertain

0.49

Eigen

Benign

-0.11

Eigen_PC

Benign

0.062

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.88

M_CAP

Benign

0.029

MetaRNN

Benign

0.27

MetaSVM

Benign

-0.69

MutationAssessor

Benign

1.3

PrimateAI

Benign

0.38

PROVEAN

Benign

-2.3

REVEL

Benign

0.24

Sift

Benign

0.74

Sift4G

Benign

0.61

Polyphen

0.0090

Vest4

0.21

MutPred

0.54

Gain of glycosylation at N114 (P = 0.0324);

MVP

0.74

MPC

0.033

ClinPred

0.18

GERP RS

4.6

Varity_R

0.58

gMVP

0.68

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over