Genetic Variant NM_001006658.3:c.605A>C (chr1-207468686-A-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001006658.3(CR2):c.605A>C(p.Lys202Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000041 in 1,461,760 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

CR2
NM_001006658.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.56

Publications

1 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: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.2194399).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001006658.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CR2	NM_001006658.3	MANE Select	c.605A>C	p.Lys202Thr	missense	Exon 3 of 20	NP_001006659.1	P20023-3
	CR2	NM_001877.5		c.605A>C	p.Lys202Thr	missense	Exon 3 of 19	NP_001868.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CR2	ENST00000367057.8	TSL:1 MANE Select	c.605A>C	p.Lys202Thr	missense	Exon 3 of 20	ENSP00000356024.3	P20023-3
CR2	ENST00000367058.7	TSL:1	c.605A>C	p.Lys202Thr	missense	Exon 3 of 19	ENSP00000356025.3	P20023-1
CR2	ENST00000367059.3	TSL:1	c.605A>C	p.Lys202Thr	missense	Exon 3 of 18	ENSP00000356026.3	Q5SR47

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000410

AC:

AN:

1461760

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727174

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33462

American (AMR)

AF:

0.00

AC:

AN:

44712

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000540

AC:

AN:

1111926

Other (OTH)

AF:

0.00

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

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

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Immunodeficiency, common variable, 7 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.56

CADD

Benign

3.0

(source)

DANN

Benign

0.41

DEOGEN2

Benign

0.078

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.026

LIST_S2

Benign

0.56

M_CAP

Benign

0.012

MetaRNN

Benign

0.22

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.46

PhyloP100

-2.6

PrimateAI

Benign

0.27

PROVEAN

Benign

-0.21

REVEL

Benign

0.046

Sift

Benign

0.59

Sift4G

Benign

0.59

Polyphen

0.0040

Vest4

0.12

MutPred

0.51

Loss of ubiquitination at K202 (P = 0.0183)

MVP

0.33

MPC

0.20

ClinPred

0.028

GERP RS

-5.1

Varity_R

0.034

gMVP

0.32

Mutation Taster

=97/3

polymorphism

(source)

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over