rs1048971

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_001006658.3(CR2):​c.1776G>A​(p.Leu592Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.364 in 1,613,704 control chromosomes in the GnomAD database, including 112,939 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.43 ( 16050 hom., cov: 32)
Exomes 𝑓: 0.36 ( 96889 hom. )

Consequence

CR2
NM_001006658.3 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 0.522

Publications

40 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant 1-207472977-G-A is Benign according to our data. Variant chr1-207472977-G-A is described in ClinVar as Benign. ClinVar VariationId is 402558.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.522 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.682 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CR2NM_001006658.3 linkc.1776G>A p.Leu592Leu synonymous_variant Exon 10 of 20 ENST00000367057.8 NP_001006659.1
CR2NM_001877.5 linkc.1776G>A p.Leu592Leu synonymous_variant Exon 10 of 19 NP_001868.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CR2ENST00000367057.8 linkc.1776G>A p.Leu592Leu synonymous_variant Exon 10 of 20 1 NM_001006658.3 ENSP00000356024.3

Frequencies

GnomAD3 genomes
AF:
0.429
AC:
65232
AN:
151896
Hom.:
16008
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.689
Gnomad AMI
AF:
0.355
Gnomad AMR
AF:
0.305
Gnomad ASJ
AF:
0.293
Gnomad EAS
AF:
0.208
Gnomad SAS
AF:
0.286
Gnomad FIN
AF:
0.308
Gnomad MID
AF:
0.377
Gnomad NFE
AF:
0.354
Gnomad OTH
AF:
0.429
GnomAD2 exomes
AF:
0.336
AC:
84508
AN:
251168
AF XY:
0.333
show subpopulations
Gnomad AFR exome
AF:
0.704
Gnomad AMR exome
AF:
0.229
Gnomad ASJ exome
AF:
0.301
Gnomad EAS exome
AF:
0.209
Gnomad FIN exome
AF:
0.312
Gnomad NFE exome
AF:
0.358
Gnomad OTH exome
AF:
0.341
GnomAD4 exome
AF:
0.357
AC:
521943
AN:
1461690
Hom.:
96889
Cov.:
55
AF XY:
0.354
AC XY:
257493
AN XY:
727136
show subpopulations
African (AFR)
AF:
0.705
AC:
23583
AN:
33466
American (AMR)
AF:
0.239
AC:
10690
AN:
44674
Ashkenazi Jewish (ASJ)
AF:
0.304
AC:
7935
AN:
26134
East Asian (EAS)
AF:
0.228
AC:
9045
AN:
39696
South Asian (SAS)
AF:
0.289
AC:
24952
AN:
86258
European-Finnish (FIN)
AF:
0.308
AC:
16447
AN:
53406
Middle Eastern (MID)
AF:
0.404
AC:
2328
AN:
5766
European-Non Finnish (NFE)
AF:
0.364
AC:
405277
AN:
1111900
Other (OTH)
AF:
0.359
AC:
21686
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.493
Heterozygous variant carriers
0
21519
43039
64558
86078
107597
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
12964
25928
38892
51856
64820
<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:
0.430
AC:
65330
AN:
152014
Hom.:
16050
Cov.:
32
AF XY:
0.422
AC XY:
31331
AN XY:
74308
show subpopulations
African (AFR)
AF:
0.689
AC:
28553
AN:
41446
American (AMR)
AF:
0.304
AC:
4644
AN:
15266
Ashkenazi Jewish (ASJ)
AF:
0.293
AC:
1015
AN:
3468
East Asian (EAS)
AF:
0.209
AC:
1080
AN:
5174
South Asian (SAS)
AF:
0.287
AC:
1384
AN:
4818
European-Finnish (FIN)
AF:
0.308
AC:
3256
AN:
10586
Middle Eastern (MID)
AF:
0.384
AC:
113
AN:
294
European-Non Finnish (NFE)
AF:
0.354
AC:
24065
AN:
67942
Other (OTH)
AF:
0.425
AC:
897
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
1744
3487
5231
6974
8718
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
580
1160
1740
2320
2900
<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:
0.363
Hom.:
12294
Bravo
AF:
0.442
Asia WGS
AF:
0.264
AC:
917
AN:
3478
EpiCase
AF:
0.350
EpiControl
AF:
0.356

ClinVar

Significance: Benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Mar 28, 2016
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant identified in a genome or exome case(s) and assessed due to predicted null impact of the variant or pathogenic assertions in the literature or databases. Disclaimer: This variant has not undergone full assessment. The following are preliminary notes: Frequency -

Jan 24, 2024
Unidad de Genómica Garrahan, Hospital de Pediatría Garrahan
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is classified as Benign based on local population frequency. This variant was detected in 43% of patients studied by a panel of primary immunodeficiencies. Number of patients: 41. Only high quality variants are reported. -

Immunodeficiency, common variable, 7 Benign:2
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jul 30, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:2
Nov 10, 2018
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
CADD
Benign
0.63
DANN
Benign
0.41
PhyloP100
0.52
Mutation Taster
=100/0
polymorphism (auto)

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

Other links and lift over

dbSNP: rs1048971; hg19: chr1-207646322; COSMIC: COSV65506619; COSMIC: COSV65506619; API