chr20-46118447-G-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001250.6(CD40):​c.51+53G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.253 in 1,443,336 control chromosomes in the GnomAD database, including 46,725 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.18 ( 2950 hom., cov: 32)
Exomes 𝑓: 0.26 ( 43775 hom. )

Consequence

CD40
NM_001250.6 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.382
Variant links:
Genes affected
CD40 (HGNC:11919): (CD40 molecule) This gene is a member of the TNF-receptor superfamily. The encoded protein is a receptor on antigen-presenting cells of the immune system and is essential for mediating a broad variety of immune and inflammatory responses including T cell-dependent immunoglobulin class switching, memory B cell development, and germinal center formation. AT-hook transcription factor AKNA is reported to coordinately regulate the expression of this receptor and its ligand, which may be important for homotypic cell interactions. Adaptor protein TNFR2 interacts with this receptor and serves as a mediator of the signal transduction. The interaction of this receptor and its ligand is found to be necessary for amyloid-beta-induced microglial activation, and thus is thought to be an early event in Alzheimer disease pathogenesis. Mutations affecting this gene are the cause of autosomal recessive hyper-IgM immunodeficiency type 3 (HIGM3). Multiple alternatively spliced transcript variants of this gene encoding distinct isoforms have been reported. [provided by RefSeq, Nov 2014]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.9).
BP6
Variant 20-46118447-G-A is Benign according to our data. Variant chr20-46118447-G-A is described in ClinVar as [Benign]. Clinvar id is 1245520.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.255 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CD40NM_001250.6 linkuse as main transcriptc.51+53G>A intron_variant ENST00000372285.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CD40ENST00000372285.8 linkuse as main transcriptc.51+53G>A intron_variant 1 NM_001250.6 P1P25942-1

Frequencies

GnomAD3 genomes
AF:
0.180
AC:
26856
AN:
149476
Hom.:
2949
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0653
Gnomad AMI
AF:
0.237
Gnomad AMR
AF:
0.126
Gnomad ASJ
AF:
0.186
Gnomad EAS
AF:
0.0337
Gnomad SAS
AF:
0.183
Gnomad FIN
AF:
0.259
Gnomad MID
AF:
0.178
Gnomad NFE
AF:
0.258
Gnomad OTH
AF:
0.187
GnomAD4 exome
AF:
0.262
AC:
338338
AN:
1293722
Hom.:
43775
AF XY:
0.261
AC XY:
168537
AN XY:
645632
show subpopulations
Gnomad4 AFR exome
AF:
0.0690
Gnomad4 AMR exome
AF:
0.109
Gnomad4 ASJ exome
AF:
0.221
Gnomad4 EAS exome
AF:
0.0610
Gnomad4 SAS exome
AF:
0.189
Gnomad4 FIN exome
AF:
0.308
Gnomad4 NFE exome
AF:
0.284
Gnomad4 OTH exome
AF:
0.248
GnomAD4 genome
AF:
0.179
AC:
26853
AN:
149614
Hom.:
2950
Cov.:
32
AF XY:
0.177
AC XY:
12914
AN XY:
73116
show subpopulations
Gnomad4 AFR
AF:
0.0652
Gnomad4 AMR
AF:
0.126
Gnomad4 ASJ
AF:
0.186
Gnomad4 EAS
AF:
0.0336
Gnomad4 SAS
AF:
0.184
Gnomad4 FIN
AF:
0.259
Gnomad4 NFE
AF:
0.258
Gnomad4 OTH
AF:
0.183
Alfa
AF:
0.228
Hom.:
4105
Bravo
AF:
0.163
Asia WGS
AF:
0.100
AC:
349
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxAug 08, 2018- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingUnidad de Genómica Garrahan, Hospital de Pediatría GarrahanJan 24, 2024This variant is classified as Benign based on local population frequency. This variant was detected in 28% of patients studied by a panel of primary immunodeficiencies. Number of patients: 27. Only high quality variants are reported. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.90
CADD
Benign
11
DANN
Benign
0.72

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

LitVar

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

Other links and lift over

dbSNP: rs745307; hg19: chr20-44747086; COSMIC: COSV64847751; COSMIC: COSV64847751; API