NM_017999.5:c.23G>C

Variant names:

• chr14-24147721-G-C
• rs2038190492
• NM_017999.5:c.23G>C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_017999.5(RNF31):​c.23G>C​(p.Arg8Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000144 in 1,388,018 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: RNF31 NM_017999.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.652

Genes affected

RNF31 (HGNC:16031): (ring finger protein 31) The protein encoded by this gene contains a RING finger, a motif present in a variety of functionally distinct proteins and known to be involved in protein-DNA and protein-protein interactions. The encoded protein is the E3 ubiquitin-protein ligase component of the linear ubiquitin chain assembly complex. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2015]

ENSG00000259529 (HGNC:):

PSME2 (HGNC:9569): (proteasome activator subunit 2) The 26S proteasome is a multicatalytic proteinase complex with a highly ordered structure composed of 2 complexes, a 20S core and a 19S regulator. The 20S core is composed of 4 rings of 28 non-identical subunits; 2 rings are composed of 7 alpha subunits and 2 rings are composed of 7 beta subunits. The 19S regulator is composed of a base, which contains 6 ATPase subunits and 2 non-ATPase subunits, and a lid, which contains up to 10 non-ATPase subunits. Proteasomes are distributed throughout eukaryotic cells at a high concentration and cleave peptides in an ATP/ubiquitin-dependent process in a non-lysosomal pathway. An essential function of a modified proteasome, the immunoproteasome, is the processing of class I MHC peptides. The immunoproteasome contains an alternate regulator, referred to as the 11S regulator or PA28, that replaces the 19S regulator. Three subunits (alpha, beta and gamma) of the 11S regulator have been identified. This gene encodes the beta subunit of the 11S regulator, one of the two 11S subunits that is induced by gamma-interferon. Three beta and three alpha subunits combine to form a heterohexameric ring. Six pseudogenes have been identified on chromosomes 4, 5, 8, 10 and 13. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.20976272).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RNF31	NM_017999.5	c.23G>C	p.Arg8Pro	missense_variant	Exon 1 of 21	ENST00000324103.11	NP_060469.4
RNF31	NM_001310332.2	c.-325-255G>C		intron_variant	Intron 1 of 20		NP_001297261.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RNF31	ENST00000324103.11	c.23G>C	p.Arg8Pro	missense_variant	Exon 1 of 21	1	NM_017999.5	ENSP00000315112.6
ENSG00000259529	ENST00000558468.2	n.23G>C		non_coding_transcript_exon_variant	Exon 1 of 29	2		ENSP00000457512.2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000144 AC: 2 AN: 1388018 Hom.: 0 Cov.: 31 AF XY: 0.00000292 AC XY: 2 AN XY: 686024

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000185

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

Alfa AF: 0.0000334 Hom.: 0

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Mar 24, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This variant has not been reported in the literature in individuals affected with RNF31-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces arginine, which is basic and polar, with proline, which is neutral and non-polar, at codon 8 of the RNF31 protein (p.Arg8Pro). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Benign	-0.000013	T
BayesDel_noAF	Benign	-0.24
CADD	Benign	17
DANN	Uncertain	0.99
DEOGEN2	Benign	0.11	.;.;T
Eigen	Benign	-0.13
Eigen_PC	Benign	-0.050
FATHMM_MKL	Benign	0.69	D
M_CAP	Benign	0.016	T
MetaRNN	Benign	0.21	T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.69	.;.;N
PrimateAI	Benign	0.37	T
PROVEAN	Pathogenic	-6.3	D;N;N
REVEL	Benign	0.14
Sift	Pathogenic	0.0	D;D;D
Sift4G	Pathogenic	0.0	D;D;D
Polyphen		0.61	.;.;P
Vest4		0.43
MutPred		0.31		Loss of helix (P = 3e-04);Loss of helix (P = 3e-04);Loss of helix (P = 3e-04);
MVP		0.63
MPC		0.33
ClinPred		0.87	D
GERP RS		2.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.89
gMVP		0.70

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

Other links and lift over

dbSNP: rs2038190492; hg19: chr14-24616930;