2-108764473-G-A

Position:

chr2-108764473-G-A

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4_StrongBP6BS2_Supporting

The NM_006267.5(RANBP2):c.3934G>A(p.Val1312Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000465 in 1,614,000 control chromosomes in the GnomAD database, including 2 homozygotes. 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00013 ( 1 hom., cov: 32)

Exomes 𝑓: 0.000038 ( 1 hom. )

Consequence

RANBP2
NM_006267.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 0.101

Variant links:

Genes affected

RANBP2 (HGNC:9848): (RAN binding protein 2) RAN is a small GTP-binding protein of the RAS superfamily that is associated with the nuclear membrane and is thought to control a variety of cellular functions through its interactions with other proteins. This gene encodes a very large RAN-binding protein that immunolocalizes to the nuclear pore complex. The protein is a giant scaffold and mosaic cyclophilin-related nucleoporin implicated in the Ran-GTPase cycle. The encoded protein directly interacts with the E2 enzyme UBC9 and strongly enhances SUMO1 transfer from UBC9 to the SUMO1 target SP100. These findings place sumoylation at the cytoplasmic filaments of the nuclear pore complex and suggest that, for some substrates, modification and nuclear import are linked events. This gene is partially duplicated in a gene cluster that lies in a hot spot for recombination on chromosome 2q. [provided by RefSeq, Jul 2008]

RANBP2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), RANBP2. . Gene score misZ -0.77637 (greater than the threshold 3.09). Trascript score misZ 3.8106 (greater than threshold 3.09). GenCC has associacion of gene with Leigh syndrome, familial acute necrotizing encephalopathy.

BP4

Computational evidence support a benign effect (MetaRNN=0.018623233).

BP6

Variant 2-108764473-G-A is Benign according to our data. Variant chr2-108764473-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 383048.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=2}.

BS2

High AC in GnomAd4 at 20 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RANBP2	NM_006267.5 linkuse as main transcript	c.3934G>A	p.Val1312Ile	missense_variant	20/29	ENST00000283195.11	NP_006258.3	P49792

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
RANBP2	ENST00000283195.11 linkuse as main transcript	c.3934G>A	p.Val1312Ile	missense_variant	20/29	1	NM_006267.5	ENSP00000283195.6	P49792
RANBP2	ENST00000697737.1 linkuse as main transcript	c.2602+5925G>A		intron_variant				ENSP00000513426.1	A0A8V8TL79
RANBP2	ENST00000697740.1 linkuse as main transcript	c.2524+5925G>A		intron_variant				ENSP00000513427.1	A0A8V8TLA0

Frequencies

GnomAD3 genomes

AF:

0.000125

AC:

AN:

152112

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000852

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000965

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000280

AC:

AN:

250222

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135582

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000272

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000328

GnomAD4 exome

AF:

0.0000376

AC:

AN:

1461770

Hom.:

Cov.:

AF XY:

0.0000371

AC XY:

AN XY:

727182

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000277

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.000695

GnomAD4 genome

AF:

0.000131

AC:

AN:

152230

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74434

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000851

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000967

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000946

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.0000982

ExAC

AF:

0.0000494

AC:

Asia WGS

AF:

0.00202

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:1Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Ambry Genetics	Dec 14, 2023	The c.3934G>A (p.V1312I) alteration is located in exon 20 (coding exon 20) of the RANBP2 gene. This alteration results from a G to A substitution at nucleotide position 3934, causing the valine (V) at amino acid position 1312 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Mar 07, 2016	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Familial acute necrotizing encephalopathy

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 04, 2023

Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The isoleucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. ClinVar contains an entry for this variant (Variation ID: 383048). This variant has not been reported in the literature in individuals affected with RANBP2-related conditions. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This sequence change replaces valine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 1312 of the RANBP2 protein (p.Val1312Ile). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.072

BayesDel_addAF

Benign

-0.60

BayesDel_noAF

Benign

-0.79

CADD

Benign

7.3

DANN

Benign

0.55

DEOGEN2

Benign

0.18

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.21

LIST_S2

Benign

0.33

M_CAP

Benign

0.0025

MetaRNN

Benign

0.019

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.57

PrimateAI

Benign

0.26

PROVEAN

Benign

-0.31

REVEL

Benign

0.010

Sift

Benign

0.20

Sift4G

Benign

0.83

Polyphen

0.0

Vest4

0.019

MVP

0.24

MPC

0.28

ClinPred

0.0082

GERP RS

-8.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.1

Varity_R

0.017

gMVP

0.13

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