chr17-28720009-G-A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM1BS2

The NM_000984.6(RPL23A):c.4G>A(p.Ala2Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000631 in 1,551,976 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000061 ( 0 hom. )

Consequence

RPL23A
NM_000984.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.09

Publications

2 publications found

Variant links:

Genes affected

RPL23A (HGNC:10317): (ribosomal protein L23a) Ribosomes, the organelles that catalyze protein synthesis, consist of a small 40S subunit and a large 60S subunit. Together these subunits are composed of 4 RNA species and approximately 80 structurally distinct proteins. This gene encodes a ribosomal protein that is a component of the 60S subunit. The protein belongs to the L23P family of ribosomal proteins. It is located in the cytoplasm. The protein may be one of the target molecules involved in mediating growth inhibition by interferon. In yeast, the corresponding protein binds to a specific site on the 26S rRNA. This gene is co-transcribed with the U42A, U42B, U101A, and U101B small nucleolar RNA genes, which are located in its third, first, second, and fourth introns, respectively. As is typical for genes encoding ribosomal proteins, there are multiple processed pseudogenes of this gene dispersed through the genome. [provided by RefSeq, Jul 2008]

RPL23A links:

ENSG00000295132 (HGNC:):

ENSG00000295132 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM1

In a modified_residue N,N,N-trimethylalanine (size 0) in uniprot entity RL23A_HUMAN

BS2

High AC in GnomAd4 at 12 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RPL23A	NM_000984.6 link	c.4G>A	p.Ala2Thr	missense_variant	Exon 1 of 5	ENST00000422514.7	NP_000975.2	P62750

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RPL23A	ENST00000422514.7 link	c.4G>A	p.Ala2Thr	missense_variant	Exon 1 of 5	1	NM_000984.6	ENSP00000389103.2		P62750

Frequencies

GnomAD3 genomes

AF:

0.0000788

AC:

AN:

152226

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000103

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.0000700

AC:

AN:

157250

AF XY:

0.0000968

show subpopulations

Gnomad AFR exome

AF:

0.000113

Gnomad AMR exome

AF:

0.0000404

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000984

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000614

AC:

AN:

1399632

Hom.:

Cov.:

AF XY:

0.0000855

AC XY:

AN XY:

690320

show subpopulations

African (AFR)

AF:

0.0000316

AC:

AN:

31604

American (AMR)

AF:

0.00

AC:

AN:

35720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25182

East Asian (EAS)

AF:

0.00

AC:

AN:

35748

South Asian (SAS)

AF:

0.000252

AC:

AN:

79230

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49376

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5646

European-Non Finnish (NFE)

AF:

0.0000547

AC:

AN:

1079078

Other (OTH)

AF:

0.000103

AC:

AN:

58048

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000788

AC:

AN:

152344

Hom.:

Cov.:

AF XY:

0.0000805

AC XY:

AN XY:

74496

show subpopulations

African (AFR)

AF:

0.0000240

AC:

AN:

41582

American (AMR)

AF:

0.00

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.000414

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000103

AC:

AN:

68024

Other (OTH)

AF:

0.000473

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.513

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000900

Hom.:

Bravo

AF:

0.0000567

ExAC

AF:

0.0000386

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 25, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.4G>A (p.A2T) alteration is located in exon 1 (coding exon 1) of the RPL23A gene. This alteration results from a G to A substitution at nucleotide position 4, causing the alanine (A) at amino acid position 2 to be replaced by a threonine (T). 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

Uncertain

0.38

BayesDel_addAF

Uncertain

0.047

BayesDel_noAF

Uncertain

0.070

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.13

Eigen

Pathogenic

0.70

Eigen_PC

Pathogenic

0.72

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.97

M_CAP

Benign

0.042

MetaRNN

Uncertain

0.53

MetaSVM

Uncertain

-0.23

MutationAssessor

Uncertain

2.7

PhyloP100

9.1

PrimateAI

Pathogenic

0.80

PROVEAN

Benign

-1.7

REVEL

Uncertain

0.43

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.025

Polyphen

0.81

Vest4

0.56

MutPred

0.35

Gain of phosphorylation at A2 (P = 0.0039);

MVP

0.63

MPC

0.95

ClinPred

0.81

GERP RS

4.9

PromoterAI

-0.86

Under-expression

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.35

gMVP

0.46

Mutation Taster

=47/53

disease causing

(source)

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

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chr17-28720009-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over