rs543886209

Variant names:

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_001006658.3(CR2):c.389T>C(p.Val130Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000118 in 1,611,190 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000079 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00012 ( 3 hom. )

Consequence

CR2
NM_001006658.3 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 0.938

Publications

0 publications found

Variant links:

Genes affected

CR2 (HGNC:2336): (complement C3d receptor 2) This gene encodes a membrane protein, which functions as a receptor for Epstein-Barr virus (EBV) binding on B and T lymphocytes. Genetic variations in this gene are associated with susceptibility to systemic lupus erythematosus type 9 (SLEB9). Alternatively spliced transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Sep 2009]

CR2 Gene-Disease associations (from GenCC):

immunodeficiency, common variable, 7
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae)
common variable immunodeficiency
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
systemic lupus erythematosus
Inheritance: Unknown Classification: SUPPORTIVE Submitted by: Orphanet

CR2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.025568426).

BP6

Variant 1-207466856-T-C is Benign according to our data. Variant chr1-207466856-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 540315.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.0000788 (12/152268) while in subpopulation SAS AF = 0.00228 (11/4822). AF 95% confidence interval is 0.00128. There are 1 homozygotes in GnomAd4. There are 9 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 3 Unknown,AR,AD gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CR2	NM_001006658.3 link	c.389T>C	p.Val130Ala	missense_variant	Exon 2 of 20	ENST00000367057.8	NP_001006659.1	P20023-3
CR2	NM_001877.5 link	c.389T>C	p.Val130Ala	missense_variant	Exon 2 of 19		NP_001868.2	P20023-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CR2	ENST00000367057.8 link	c.389T>C	p.Val130Ala	missense_variant	Exon 2 of 20	1	NM_001006658.3	ENSP00000356024.3		P20023-3

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

152150

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00228

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000261

AC:

AN:

249096

AF XY:

0.000386

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000266

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000122

AC:

178

AN:

1458922

Hom.:

Cov.:

AF XY:

0.000183

AC XY:

133

AN XY:

725612

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33214

American (AMR)

AF:

0.00

AC:

AN:

44178

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25916

East Asian (EAS)

AF:

0.00

AC:

AN:

39676

South Asian (SAS)

AF:

0.00191

AC:

164

AN:

85890

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53372

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5736

European-Non Finnish (NFE)

AF:

0.00000810

AC:

AN:

1110718

Other (OTH)

AF:

0.0000830

AC:

AN:

60222

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.499

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000788

AC:

AN:

152268

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74458

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41552

American (AMR)

AF:

0.00

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3464

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00228

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000734

Hom.:

Bravo

AF:

0.0000151

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ExAC

AF:

0.000354

AC:

Asia WGS

AF:

0.00144

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Dec 06, 2021

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.389T>C (p.V130A) alteration is located in exon 2 (coding exon 2) of the CR2 gene. This alteration results from a T to C substitution at nucleotide position 389, causing the valine (V) at amino acid position 130 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Immunodeficiency, common variable, 7

Benign:1

Dec 02, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.39

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.27

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.18

T;.;.

Eigen

Benign

-0.12

Eigen_PC

Benign

-0.041

FATHMM_MKL

Benign

0.56

LIST_S2

Benign

0.62

T;T;T

M_CAP

Benign

0.032

MetaRNN

Benign

0.026

T;T;T

MetaSVM

Benign

-0.68

MutationAssessor

Benign

1.1

L;L;.

PhyloP100

0.94

PrimateAI

Uncertain

0.51

PROVEAN

Benign

-2.1

N;N;N

REVEL

Uncertain

0.31

Sift

Benign

0.063

T;D;T

Sift4G

Uncertain

0.0050

D;D;D

Polyphen

0.41

B;B;P

Vest4

0.28

MutPred

0.80

Gain of ubiquitination at K128 (P = 0.044);Gain of ubiquitination at K128 (P = 0.044);Gain of ubiquitination at K128 (P = 0.044);

MVP

0.73

MPC

0.27

ClinPred

0.039

GERP RS

5.0

Varity_R

0.29

gMVP

0.41

Mutation Taster

=88/12

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over