2-108765635-C-T

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_006267.5(RANBP2):c.5096C>T(p.Ser1699Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000807 in 123,948 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000081 ( 0 hom., cov: 19)

Consequence

RANBP2
NM_006267.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0230

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

familial acute necrotizing encephalopathy
Inheritance: AD Classification: STRONG, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae)
Leigh syndrome
Inheritance: AD Classification: LIMITED Submitted by: ClinGen

RANBP2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.12065095).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RANBP2	NM_006267.5 link	c.5096C>T	p.Ser1699Phe	missense_variant	Exon 20 of 29	ENST00000283195.11	NP_006258.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RANBP2	ENST00000283195.11 link	c.5096C>T	p.Ser1699Phe	missense_variant	Exon 20 of 29	1	NM_006267.5	ENSP00000283195.6

Frequencies

GnomAD3 genomes

AF:

0.00000807

AC:

AN:

123948

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000831

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000807

AC:

AN:

123948

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

59624

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

32110

American (AMR)

AF:

0.0000831

AC:

AN:

12040

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3068

East Asian (EAS)

AF:

0.00

AC:

AN:

4012

South Asian (SAS)

AF:

0.00

AC:

AN:

3258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

8226

Middle Eastern (MID)

AF:

0.00

AC:

AN:

274

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

58596

Other (OTH)

AF:

0.00

AC:

AN:

1582

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.325

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Familial acute necrotizing encephalopathy

Uncertain:1

Jan 27, 2020

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces serine with phenylalanine at codon 1699 of the RANBP2 protein (p.Ser1699Phe). The serine residue is moderately conserved and there is a large physicochemical difference between serine and phenylalanine. In summary, this variant is a novel missense change with uncertain impact on protein function. It has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). This variant is not present in population databases (ExAC no frequency) and has not been reported in the literature in individuals with a RANBP2-related disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.63

CADD

Benign

(source)

DANN

Benign

0.62

DEOGEN2

Benign

0.20

Eigen

Benign

-0.50

Eigen_PC

Benign

-0.65

FATHMM_MKL

Benign

0.089

LIST_S2

Benign

0.33

M_CAP

Benign

0.0099

MetaRNN

Benign

0.12

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.4

PhyloP100

0.023

PrimateAI

Benign

0.25

PROVEAN

Benign

-1.2

REVEL

Benign

0.033

Sift

Benign

0.052

Sift4G

Uncertain

0.042

Polyphen

0.61

Vest4

0.073

MutPred

0.30

Loss of glycosylation at S1699 (P = 0.0149);

MVP

0.37

MPC

0.94

ClinPred

0.18

GERP RS

2.1

Varity_R

0.031

gMVP

0.078

Mutation Taster

=94/6

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over