X-136656393-T-A

Position:

• chrX-136656393-T-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1 PM2 PP3_Moderate

The NM_000074.3(CD40LG):​c.384T>A​(p.Ser128Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as no classification for the single variant (no stars).

• Frequency: Genomes: not found (cov: 23)
• Consequence: CD40LG NM_000074.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.342

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]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM1: In a chain CD40 ligand, membrane form (size 260) in uniprot entity CD40L_HUMAN there are 19 pathogenic changes around while only 0 benign (100%) in NM_000074.3
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.886

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CD40LG	NM_000074.3	c.384T>A	p.Ser128Arg	missense_variant	4/5	ENST00000370629.7	NP_000065.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CD40LG	ENST00000370629.7	c.384T>A	p.Ser128Arg	missense_variant	4/5	1	NM_000074.3	ENSP00000359663	P1

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 23

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.54	D
BayesDel_noAF	Pathogenic	0.53
CADD	Benign	19
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.47	T
FATHMM_MKL	Benign	0.61	D
LIST_S2	Benign	0.78	T
M_CAP	Pathogenic	0.50	D
MetaRNN	Pathogenic	0.89	D
MetaSVM	Uncertain	0.73	D
MutationAssessor	Uncertain	2.1	M
MutationTaster	Benign	0.48	A;A
PrimateAI	Benign	0.47	T
PROVEAN	Benign	-1.6	N
REVEL	Pathogenic	0.71
Sift	Uncertain	0.023	D
Sift4G	Benign	0.10	T
Polyphen		1.0	D
Vest4		0.36
MutPred		0.82		Gain of MoRF binding (P = 0.0146);
MVP		1.0
MPC		1.4
ClinPred		0.91	D
GERP RS		1.4
Varity_R		0.76
gMVP		0.88

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

Other links and lift over

dbSNP: rs104894773; hg19: chrX-135738552;