X-136648274-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM1BP4_Moderate

The NM_000074.3(CD40LG):c.26C>T(p.Ser9Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000832 in 1,202,489 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 2 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000090 ( 0 hom., 0 hem., cov: 22)

Exomes 𝑓: 0.0000082 ( 0 hom. 2 hem. )

Consequence

CD40LG
NM_000074.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.15

Variant links:

Genes affected

CD40LG (HGNC:11935): (CD40 ligand) The protein encoded by this gene is expressed on the surface of T cells. It regulates B cell function by engaging CD40 on the B cell surface. A defect in this gene results in an inability to undergo immunoglobulin class switch and is associated with hyper-IgM syndrome. [provided by RefSeq, Jul 2008]

CD40LG links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM1

In a chain CD40 ligand, membrane form (size 260) in uniprot entity CD40L_HUMAN there are 53 pathogenic changes around while only 16 benign (77%) in NM_000074.3

BP4

Computational evidence support a benign effect (MetaRNN=0.170807).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CD40LG	NM_000074.3 linkuse as main transcript	c.26C>T	p.Ser9Phe	missense_variant	1/5	ENST00000370629.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CD40LG	ENST00000370629.7 linkuse as main transcript	c.26C>T	p.Ser9Phe	missense_variant	1/5	1	NM_000074.3	P1

Frequencies

GnomAD3 genomes

AF:

0.00000899

AC:

AN:

111179

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33357

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:

0.0000189

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000546

AC:

AN:

183279

Hom.:

AF XY:

0.00

AC XY:

AN XY:

67769

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000122

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000825

AC:

AN:

1091310

Hom.:

Cov.:

AF XY:

0.00000560

AC XY:

AN XY:

356952

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000108

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000899

AC:

AN:

111179

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33357

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000189

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Hyper-IgM syndrome type 1

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Dec 15, 2019

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. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C15"). This variant has not been reported in the literature in individuals with CD40LG-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces serine with phenylalanine at codon 9 of the CD40LG protein (p.Ser9Phe). The serine residue is moderately conserved and there is a large physicochemical difference between serine and phenylalanine. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.46

Cadd

Benign

Dann

Uncertain

0.99

DEOGEN2

Uncertain

0.46

T;T

FATHMM_MKL

Uncertain

0.80

LIST_S2

Benign

0.81

T;T

M_CAP

Uncertain

0.16

MetaRNN

Benign

0.17

T;T

MetaSVM

Benign

-0.74

MutationAssessor

Benign

0.90

L;.

MutationTaster

Benign

0.97

N;N

PrimateAI

Benign

0.42

PROVEAN

Benign

-2.1

N;N

REVEL

Benign

0.21

Sift

Uncertain

0.0090

D;D

Sift4G

Uncertain

0.0040

D;D

Polyphen

0.49

P;P

Vest4

0.22

MutPred

0.22

Loss of disorder (P = 0.0012);Loss of disorder (P = 0.0012);

MVP

0.55

MPC

0.70

ClinPred

0.27

GERP RS

4.9

Varity_R

0.12

gMVP

0.74

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.

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