2-108768293-T-G

Variant names:

• chr2-108768293-T-G
• rs145886643
• NM_006267.5:c.7754T>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_006267.5(RANBP2):​c.7754T>G​(p.Ile2585Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I2585T) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: RANBP2 NM_006267.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -3.59
• Publications: 0 publications found

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

ACMG classification

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

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.045220286).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006267.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RANBP2	NM_006267.5	MANE Select	c.7754T>G	p.Ile2585Ser	missense	Exon 20 of 29	NP_006258.3
	RANBP2	NM_001415871.1		c.7754T>G	p.Ile2585Ser	missense	Exon 20 of 30	NP_001402800.1
	RANBP2	NM_001415873.1		c.7754T>G	p.Ile2585Ser	missense	Exon 20 of 29	NP_001402802.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RANBP2	ENST00000283195.11	TSL:1 MANE Select	c.7754T>G	p.Ile2585Ser	missense	Exon 20 of 29	ENSP00000283195.6
	RANBP2	ENST00000697745.1		c.2618T>G	p.Ile873Ser	missense	Exon 1 of 10	ENSP00000513429.1
	RANBP2	ENST00000697747.1		c.383T>G	p.Ile128Ser	missense	Exon 1 of 11	ENSP00000513430.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.061
BayesDel_addAF	Benign	-0.37	T
BayesDel_noAF	Benign	-0.77
CADD	Benign	0.0030
DANN	Benign	0.40
DEOGEN2	Benign	0.20	T
Eigen	Benign	-2.2
Eigen_PC	Benign	-2.3
FATHMM_MKL	Benign	0.033	N
LIST_S2	Benign	0.40	T
M_CAP	Benign	0.0030	T
MetaRNN	Benign	0.045	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.0	L
PhyloP100		-3.6
PrimateAI	Benign	0.22	T
PROVEAN	Benign	-0.55	N
REVEL	Benign	0.032
Sift	Benign	0.50	T
Sift4G	Benign	0.086	T
Polyphen		0.0	B
Vest4		0.092
MutPred		0.17		Gain of phosphorylation at I2585 (P = 0.0065)
MVP		0.15
MPC		0.52
ClinPred		0.035	T
GERP RS		-10
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.024
gMVP		0.22
Mutation Taster		=100/0	polymorphism

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

Other links and lift over

dbSNP: rs145886643; hg19: chr2-109384749;