rs200885342

Variant names:

Variant summary

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

The NM_000651.6(CR1):c.3916G>A(p.Glu1306Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000122 in 1,610,904 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000067 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00013 ( 1 hom. )

Consequence

CR1
NM_000651.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.944

Publications

2 publications found

Variant links:

Genes affected

CR1 (HGNC:2334): (complement C3b/C4b receptor 1 (Knops blood group)) This gene is a member of the receptors of complement activation (RCA) family and is located in the 'cluster RCA' region of chromosome 1. The genome is polymorphic at this locus with allele-specific splice variants encoding different isoforms, based on the presence/absence of long homologous repeats (LHRs). The gene encodes a monomeric single-pass type I membrane glycoprotein found on erythrocytes, leukocytes, glomerular podocytes, and splenic follicular dendritic cells. The Knops blood group system is a system of antigens located on this protein. The protein mediates cellular binding to particles and immune complexes that have activated complement. Decreases in expression of this protein and/or mutations in this gene have been associated with gallbladder carcinomas, mesangiocapillary glomerulonephritis, systemic lupus erythematosus, sarcoidosis and Alzheimer's disease. Mutations in this gene have also been associated with a reduction in Plasmodium falciparum rosetting, conferring protection against severe malaria. [provided by RefSeq, May 2020]

CR1 links:

CR1-AS1 (HGNC:40160):

CR1-AS1 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=0.07716316).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000651.6. 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
	CR1	NM_000651.6	MANE Select	c.3916G>A	p.Glu1306Lys	missense	Exon 24 of 47	NP_000642.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CR1	ENST00000367049.9	TSL:5 MANE Select	c.3916G>A	p.Glu1306Lys	missense	Exon 24 of 47	ENSP00000356016.4	E9PDY4
CR1	ENST00000400960.7	TSL:1	c.2566G>A	p.Glu856Lys	missense	Exon 16 of 39	ENSP00000383744.2	P17927
CR1	ENST00000367051.6	TSL:5	c.2566G>A	p.Glu856Lys	missense	Exon 16 of 39	ENSP00000356018.1	P17927

Frequencies

GnomAD3 genomes

AF:

0.0000666

AC:

AN:

150230

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:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.000967

GnomAD2 exomes

AF:

0.0000482

AC:

AN:

248908

AF XY:

0.0000592

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000885

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000128

AC:

187

AN:

1460674

Hom.:

Cov.:

AF XY:

0.000131

AC XY:

AN XY:

726678

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32610

American (AMR)

AF:

0.0000447

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86240

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53402

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.000153

AC:

170

AN:

1111774

Other (OTH)

AF:

0.000249

AC:

AN:

60336

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.434

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

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:

0.0000666

AC:

AN:

150230

Hom.:

Cov.:

AF XY:

0.0000273

AC XY:

AN XY:

73384

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

39640

American (AMR)

AF:

0.00

AC:

AN:

15222

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4814

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.000118

AC:

AN:

67986

Other (OTH)

AF:

0.000967

AC:

AN:

2068

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.490

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:

0.0000330

Hom.:

Bravo

AF:

0.0000604

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000243

AC:

ExAC

AF:

0.0000580

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.43

CADD

Benign

5.6

(source)

DANN

Benign

0.94

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.0048

LIST_S2

Benign

0.26

M_CAP

Benign

0.0054

MetaRNN

Benign

0.077

MetaSVM

Benign

-1.0

PhyloP100

-0.94

PrimateAI

Benign

0.32

PROVEAN

Benign

-0.76

REVEL

Benign

0.16

Sift

Benign

0.49

Sift4G

Benign

0.43

Polyphen

0.63

Vest4

0.12

MVP

0.53

MPC

0.14

ClinPred

0.039

GERP RS

-5.0

gMVP

0.32

Mutation Taster

=99/1

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.15

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over