dbSNP rs755648147: FASLG:p.Pro48_Pro56del (chr1-172659335-CACCACCACCACCGCCACCGCCACCACT-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_000639.3(FASLG):c.141_167delACCACCGCCACCGCCACCACTACCACC(p.Pro48_Pro56del) variant causes a disruptive inframe deletion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000754 in 1,459,070 control chromosomes in the GnomAD database, with no homozygous occurrence. It is difficult to determine the true allele frequency of this variant because it is of type DEL_BIG, and the frequency of such variant types in population databases may be underestimated and unreliable. Variant has been reported in ClinVar as Uncertain significance (no stars).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

FASLG
NM_000639.3 disruptive_inframe_deletion

Scores

Not classified

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 2.98

Publications

0 publications found

Variant links:

Genes affected

FASLG (HGNC:11936): (Fas ligand) This gene is a member of the tumor necrosis factor superfamily. The primary function of the encoded transmembrane protein is the induction of apoptosis triggered by binding to FAS. The FAS/FASLG signaling pathway is essential for immune system regulation, including activation-induced cell death (AICD) of T cells and cytotoxic T lymphocyte induced cell death. It has also been implicated in the progression of several cancers. Defects in this gene may be related to some cases of systemic lupus erythematosus (SLE). Alternatively spliced transcript variants have been described. [provided by RefSeq, Nov 2014]

FASLG Gene-Disease associations (from GenCC):

autoimmune lymphoproliferative syndrome type 1
Inheritance: AD, AR Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
autoimmune lymphoproliferative syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

FASLG links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FASLG	NM_000639.3 link	c.141_167delACCACCGCCACCGCCACCACTACCACC	p.Pro48_Pro56del	disruptive_inframe_deletion	Exon 1 of 4	ENST00000367721.3	NP_000630.1	P48023-1Q53ZZ1
FASLG	NM_001302746.2 link	c.141_167delACCACCGCCACCGCCACCACTACCACC	p.Pro48_Pro56del	disruptive_inframe_deletion	Exon 1 of 3		NP_001289675.1	P48023-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FASLG	ENST00000367721.3 link	c.141_167delACCACCGCCACCGCCACCACTACCACC	p.Pro48_Pro56del	disruptive_inframe_deletion	Exon 1 of 4	1	NM_000639.3	ENSP00000356694.2		P48023-1
FASLG	ENST00000340030.4 link	c.141_167delACCACCGCCACCGCCACCACTACCACC	p.Pro48_Pro56del	disruptive_inframe_deletion	Exon 1 of 3	1		ENSP00000344739.3		P48023-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000812

AC:

AN:

246314

AF XY:

0.00000749

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:

0.0000180

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000754

AC:

AN:

1459070

Hom.:

AF XY:

0.00000413

AC XY:

AN XY:

725686

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33460

American (AMR)

AF:

0.00

AC:

AN:

44556

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26092

East Asian (EAS)

AF:

0.00

AC:

AN:

39636

South Asian (SAS)

AF:

0.00

AC:

AN:

85834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5688

European-Non Finnish (NFE)

AF:

0.00000990

AC:

AN:

1110972

Other (OTH)

AF:

0.00

AC:

AN:

60224

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.393

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

FASLG-related disorder

Uncertain:1

Jan 05, 2024

PreventionGenetics, part of Exact Sciences

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

The FASLG c.141_167del27 variant is predicted to result in an in-frame deletion (p.Leu54_Pro62del). To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.0018% of alleles in individuals of European (Non-Finnish) descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

3.0

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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rs755648147

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over