Variant 1-17438495-G-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_018715.4(RCC2):c.20C>G(p.Ala7Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000186 in 1,344,198 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: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

RCC2
NM_018715.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.80

Variant links:

Genes affected

RCC2 (HGNC:30297): (regulator of chromosome condensation 2) The protein encoded by this gene is a guanine exchange factor that is active on RalA, a small GTPase. The encoded protein and RalA are both essential for proper kinetochore-microtubule function in early mitosis. This protein has been shown to be a biomarker for colorectal cancer. [provided by RefSeq, Oct 2016]

RCC2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.17466363).

BS2

High AC in GnomAdExome4 at 22 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RCC2	NM_018715.4 linkuse as main transcript	c.20C>G	p.Ala7Gly	missense_variant	2/13	ENST00000375436.9	NP_061185.1
RCC2	NM_001136204.3 linkuse as main transcript	c.20C>G	p.Ala7Gly	missense_variant	1/12		NP_001129676.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RCC2	ENST00000375436.9 linkuse as main transcript	c.20C>G	p.Ala7Gly	missense_variant	2/13	1	NM_018715.4	ENSP00000364585	P1
RCC2	ENST00000375433.3 linkuse as main transcript	c.20C>G	p.Ala7Gly	missense_variant	1/12	1		ENSP00000364582	P1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

151948

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000185

AC:

AN:

1192250

Hom.:

Cov.:

AF XY:

0.0000207

AC XY:

AN XY:

580128

show subpopulations

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:

0.0000224

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

151948

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74222

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000189

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 09, 2023

The c.20C>G (p.A7G) alteration is located in exon 2 (coding exon 1) of the RCC2 gene. This alteration results from a C to G substitution at nucleotide position 20, causing the alanine (A) at amino acid position 7 to be replaced by a glycine (G). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.45

CADD

Benign

DANN

Benign

0.92

DEOGEN2

Benign

0.022

T;T

Eigen

Benign

-0.96

Eigen_PC

Benign

-0.91

FATHMM_MKL

Benign

0.40

M_CAP

Pathogenic

0.73

MetaRNN

Benign

0.17

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.55

N;N

MutationTaster

Benign

1.0

N;N

PrimateAI

Pathogenic

0.89

PROVEAN

Benign

-0.14

N;N

REVEL

Benign

0.049

Sift

Benign

0.071

T;T

Sift4G

Benign

0.069

T;T

Polyphen

0.034

B;B

Vest4

0.29

MutPred

0.27

Loss of helix (P = 0.0041);Loss of helix (P = 0.0041);

MVP

0.29

MPC

0.86

ClinPred

0.17

GERP RS

-0.58

Varity_R

0.075

gMVP

0.078

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.11

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