rs121909589

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_172351.3(CD46):​c.718T>C​(p.Ser240Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,613,692 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

CD46
NM_172351.3 missense

Scores

1
9
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1O:1

Conservation

PhyloP100: -0.788

Publications

6 publications found
Variant links:
Genes affected
CD46 (HGNC:6953): (CD46 molecule) The protein encoded by this gene is a type I membrane protein and is a regulatory part of the complement system. The encoded protein has cofactor activity for inactivation of complement components C3b and C4b by serum factor I, which protects the host cell from damage by complement. In addition, the encoded protein can act as a receptor for the Edmonston strain of measles virus, human herpesvirus-6, and type IV pili of pathogenic Neisseria. Finally, the protein encoded by this gene may be involved in the fusion of the spermatozoa with the oocyte during fertilization. Mutations at this locus have been associated with susceptibility to hemolytic uremic syndrome. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jun 2010]
MIR29B2CHG (HGNC:32018): (MIR29B2 and MIR29C host gene)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CD46NM_172351.3 linkc.718T>C p.Ser240Pro missense_variant Exon 6 of 13 ENST00000367042.6 NP_758861.1 P15529-11

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CD46ENST00000367042.6 linkc.718T>C p.Ser240Pro missense_variant Exon 6 of 13 1 NM_172351.3 ENSP00000356009.1 P15529-11

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152138
Hom.:
0
Cov.:
32
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251270
AF XY:
0.00000736
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:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000411
AC:
6
AN:
1461554
Hom.:
0
Cov.:
31
AF XY:
0.00000413
AC XY:
3
AN XY:
727064
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33468
American (AMR)
AF:
0.00
AC:
0
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26126
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39666
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86246
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.00000450
AC:
5
AN:
1111770
Other (OTH)
AF:
0.00
AC:
0
AN:
60380
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.517
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00000657
AC:
1
AN:
152138
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74326
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41432
American (AMR)
AF:
0.00
AC:
0
AN:
15274
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5204
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
67992
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1Other:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Nov 18, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces serine, which is neutral and polar, with proline, which is neutral and non-polar, at codon 240 of the CD46 protein (p.Ser240Pro). This variant is present in population databases (rs121909589, gnomAD 0.004%). This missense change has been observed in individual(s) with hemolytic uremic syndrome (PMID: 14566051). This variant is also known as T822C S206P. ClinVar contains an entry for this variant (Variation ID: 17046). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt CD46 protein function with a negative predictive value of 80%. Experimental studies have shown that this missense change affects CD46 function (PMID: 14566051). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Atypical hemolytic-uremic syndrome with MCP/CD46 anomaly Other:1
Oct 28, 2003
OMIM
Significance:risk factor
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.90
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Uncertain
-0.080
CADD
Benign
13
DANN
Benign
0.97
DEOGEN2
Uncertain
0.43
T;.;.;.;.;.;.;.;.;.
Eigen
Benign
-0.79
Eigen_PC
Benign
-1.0
FATHMM_MKL
Benign
0.092
N
LIST_S2
Benign
0.80
T;T;T;T;T;T;T;T;T;T
M_CAP
Benign
0.063
D
MetaRNN
Uncertain
0.67
D;D;D;D;D;D;D;D;D;D
MetaSVM
Benign
-0.57
T
MutationAssessor
Uncertain
2.3
M;M;M;M;M;M;M;.;M;M
PhyloP100
-0.79
PrimateAI
Benign
0.32
T
PROVEAN
Uncertain
-4.0
D;D;D;D;D;D;D;D;D;D
REVEL
Uncertain
0.34
Sift
Uncertain
0.0020
D;D;D;D;D;D;D;D;D;D
Sift4G
Uncertain
0.013
D;D;D;D;D;D;D;D;D;D
Polyphen
0.95
P;D;D;D;D;D;D;.;D;P
Vest4
0.46
MutPred
0.75
Loss of glycosylation at S240 (P = 0.0615);Loss of glycosylation at S240 (P = 0.0615);Loss of glycosylation at S240 (P = 0.0615);Loss of glycosylation at S240 (P = 0.0615);Loss of glycosylation at S240 (P = 0.0615);Loss of glycosylation at S240 (P = 0.0615);Loss of glycosylation at S240 (P = 0.0615);.;Loss of glycosylation at S240 (P = 0.0615);Loss of glycosylation at S240 (P = 0.0615);
MVP
0.68
MPC
0.71
ClinPred
0.85
D
GERP RS
-4.0
Varity_R
0.72
gMVP
0.87
Mutation Taster
=0/100
disease causing

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

Other links and lift over

dbSNP: rs121909589; hg19: chr1-207940402; API