Genetic Variant RPL31:c.233+21C>G (chr2-101004304-C-G) – ACMG Classification: Benign (-20 pts)

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000993.5(RPL31):c.233+21C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0101 in 1,611,914 control chromosomes in the GnomAD database, including 1,358 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.053 ( 714 hom., cov: 32)

Exomes 𝑓: 0.0056 ( 644 hom. )

Consequence

RPL31
NM_000993.5 intron

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -1.37

Variant links:

Genes affected

RPL31 (HGNC:10334): (ribosomal protein L31) 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 L31E family of ribosomal proteins. It is located in the cytoplasm. Higher levels of expression of this gene in familial adenomatous polyps compared to matched normal tissues have been observed. As is typical for genes encoding ribosomal proteins, there are multiple processed pseudogenes of this gene dispersed through the genome. Alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

RPL31 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.89).

BP6

Variant 2-101004304-C-G is Benign according to our data. Variant chr2-101004304-C-G is described in ClinVar as [Benign]. Clinvar id is 1233833.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.181 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	Exon rank	MANE	Protein	UniProt
RPL31	NM_000993.5 link	c.233+21C>G	intron_variant	Intron 3 of 4	ENST00000264258.8	NP_000984.1	P62899-1
RPL31	NM_001098577.3 link	c.233+21C>G	intron_variant	Intron 3 of 4		NP_001092047.1	P62899-2
RPL31	NM_001099693.2 link	c.233+21C>G	intron_variant	Intron 3 of 3		NP_001093163.1	P62899-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RPL31	ENST00000264258.8 link	c.233+21C>G		intron_variant	Intron 3 of 4	1	NM_000993.5	ENSP00000264258.3		P62899-1

Frequencies

GnomAD3 genomes

AF:

0.0526

AC:

7982

AN:

151692

Hom.:

711

Cov.:

show subpopulations

Gnomad AFR

AF:

0.184

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0192

Gnomad ASJ

AF:

0.000864

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00949

Gnomad NFE

AF:

0.000500

Gnomad OTH

AF:

0.0352

GnomAD3 exomes

AF:

0.0135

AC:

3345

AN:

247240

Hom.:

276

AF XY:

0.0100

AC XY:

1345

AN XY:

134530

show subpopulations

Gnomad AFR exome

AF:

0.191

Gnomad AMR exome

AF:

0.00985

Gnomad ASJ exome

AF:

0.00161

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000165

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000546

Gnomad OTH exome

AF:

0.00780

GnomAD4 exome

AF:

0.00563

AC:

8222

AN:

1460104

Hom.:

644

Cov.:

AF XY:

0.00488

AC XY:

3543

AN XY:

726270

show subpopulations

Gnomad4 AFR exome

AF:

0.190

Gnomad4 AMR exome

AF:

0.0109

Gnomad4 ASJ exome

AF:

0.00130

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000244

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000491

Gnomad4 OTH exome

AF:

0.0121

GnomAD4 genome

AF:

0.0528

AC:

8010

AN:

151810

Hom.:

714

Cov.:

AF XY:

0.0517

AC XY:

3833

AN XY:

74190

show subpopulations

Gnomad4 AFR

AF:

0.184

Gnomad4 AMR

AF:

0.0192

Gnomad4 ASJ

AF:

0.000864

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000500

Gnomad4 OTH

AF:

0.0348

Alfa

AF:

0.00344

Hom.:

Bravo

AF:

0.0603

Asia WGS

AF:

0.0110

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

May 18, 2021

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.89

CADD

Benign

2.8

DANN

Benign

0.61

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