rs746757476

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM1

The NM_172351.3(CD46):​c.491C>A​(p.Pro164Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000149 in 1,606,916 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P164A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

CD46
NM_172351.3 missense

Scores

1
10
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.47

Publications

1 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 2 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 9 uncertain in NM_172351.3

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_172351.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CD46
NM_172351.3
MANE Select
c.491C>Ap.Pro164Gln
missense
Exon 5 of 13NP_758861.1P15529-11
CD46
NM_172359.3
c.491C>Ap.Pro164Gln
missense
Exon 5 of 13NP_758869.1P15529-2
CD46
NM_002389.4
c.491C>Ap.Pro164Gln
missense
Exon 5 of 14NP_002380.3P15529-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CD46
ENST00000367042.6
TSL:1 MANE Select
c.491C>Ap.Pro164Gln
missense
Exon 5 of 13ENSP00000356009.1P15529-11
CD46
ENST00000322875.8
TSL:1
c.491C>Ap.Pro164Gln
missense
Exon 5 of 13ENSP00000313875.4P15529-2
CD46
ENST00000358170.6
TSL:1
c.491C>Ap.Pro164Gln
missense
Exon 5 of 14ENSP00000350893.2P15529-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
151992
Hom.:
0
Cov.:
33
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:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000400
AC:
10
AN:
250070
AF XY:
0.0000370
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:
0.0000885
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000137
AC:
20
AN:
1454924
Hom.:
0
Cov.:
30
AF XY:
0.0000166
AC XY:
12
AN XY:
724246
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33340
American (AMR)
AF:
0.00
AC:
0
AN:
44650
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26066
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39638
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86026
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53348
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5734
European-Non Finnish (NFE)
AF:
0.0000172
AC:
19
AN:
1105984
Other (OTH)
AF:
0.00
AC:
0
AN:
60138
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.468
Heterozygous variant carriers
0
1
2
4
5
6
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:
0.0000263
AC:
4
AN:
151992
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74224
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41364
American (AMR)
AF:
0.00
AC:
0
AN:
15264
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10564
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
67998
Other (OTH)
AF:
0.00
AC:
0
AN:
2082
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.600
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.000113
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.0000165
AC:
2

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.28
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.34
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.47
T
Eigen
Uncertain
0.31
Eigen_PC
Benign
0.21
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Uncertain
0.88
D
M_CAP
Uncertain
0.13
D
MetaRNN
Uncertain
0.56
D
MetaSVM
Benign
-0.42
T
MutationAssessor
Uncertain
2.5
M
PhyloP100
1.5
PrimateAI
Benign
0.35
T
PROVEAN
Pathogenic
-5.4
D
REVEL
Uncertain
0.30
Sift
Benign
0.054
T
Sift4G
Uncertain
0.0020
D
Polyphen
1.0
D
Vest4
0.46
MutPred
0.55
Loss of glycosylation at P164 (P = 0.0238)
MVP
0.77
MPC
0.54
ClinPred
0.71
D
GERP RS
2.7
Varity_R
0.47
gMVP
0.66
Mutation Taster
=95/5
polymorphism

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: rs746757476; hg19: chr1-207934609; COSMIC: COSV59732284; COSMIC: COSV59732284; API