Variant chr1-207752280-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_172351.3(CD46):c.68C>G(p.Ala23Gly) 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 1,461,786 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 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

CD46
NM_172351.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.183

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]

CD46 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.15341738).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CD46	NM_172351.3 linkuse as main transcript	c.68C>G	p.Ala23Gly	missense_variant	1/13	ENST00000367042.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CD46	ENST00000367042.6 linkuse as main transcript	c.68C>G	p.Ala23Gly	missense_variant	1/13	1	NM_172351.3	A2	P15529-11

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000796

AC:

AN:

251358

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135878

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000410

AC:

AN:

1461786

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727212

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000151

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 03, 2023

The c.68C>G (p.A23G) alteration is located in exon 1 (coding exon 1) of the CD46 gene. This alteration results from a C to G substitution at nucleotide position 68, causing the alanine (A) at amino acid position 23 to be replaced by a glycine (G). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.50

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.28

T;.;.;.;.;.;.;.;.;.

Eigen

Benign

-0.44

Eigen_PC

Benign

-0.63

FATHMM_MKL

Benign

0.28

LIST_S2

Benign

0.84

T;D;D;D;D;D;T;T;D;D

M_CAP

Benign

0.027

MetaRNN

Benign

0.15

T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.99

MutationAssessor

Benign

1.9

L;L;L;L;L;L;L;L;L;L

MutationTaster

Benign

1.0

N;N;N;N;N;N;N;N;N;N;N;N

PrimateAI

Benign

0.29

PROVEAN

Benign

-2.0

N;N;N;N;N;N;N;N;N;N

REVEL

Benign

0.066

Sift

Uncertain

0.0050

D;D;D;D;D;D;D;D;D;D

Sift4G

Uncertain

0.019

D;D;D;D;D;D;D;D;D;D

Polyphen

0.33

B;P;P;P;B;P;P;.;P;P

Vest4

0.17

MutPred

0.57

Loss of stability (P = 0.0048);Loss of stability (P = 0.0048);Loss of stability (P = 0.0048);Loss of stability (P = 0.0048);Loss of stability (P = 0.0048);Loss of stability (P = 0.0048);Loss of stability (P = 0.0048);Loss of stability (P = 0.0048);Loss of stability (P = 0.0048);Loss of stability (P = 0.0048);

MVP

0.40

MPC

0.52

ClinPred

0.39

GERP RS

2.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.11

gMVP

0.45

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over