10-89014198-T-G

Variant names:

• chr10-89014198-T-G
• rs587778348
• NM_000043.6:c.756T>G

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 4P and 1B. PM1 PM2 BP4

The NM_000043.6(FAS):​c.756T>G​(p.Asn252Lys) 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 benign outcome for this variant. Variant has been reported in ClinVar as not provided (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N252S) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: FAS NM_000043.6 missense
• Clinical Significance: not provided no classification provided O:1
• Conservation: PhyloP100: -0.286
• Publications: 0 publications found

Genes affected

FAS (HGNC:11920): (Fas cell surface death receptor) The protein encoded by this gene is a member of the TNF-receptor superfamily. This receptor contains a death domain. It has been shown to play a central role in the physiological regulation of programmed cell death, and has been implicated in the pathogenesis of various malignancies and diseases of the immune system. The interaction of this receptor with its ligand allows the formation of a death-inducing signaling complex that includes Fas-associated death domain protein (FADD), caspase 8, and caspase 10. The autoproteolytic processing of the caspases in the complex triggers a downstream caspase cascade, and leads to apoptosis. This receptor has been also shown to activate NF-kappaB, MAPK3/ERK1, and MAPK8/JNK, and is found to be involved in transducing the proliferating signals in normal diploid fibroblast and T cells. Several alternatively spliced transcript variants have been described, some of which are candidates for nonsense-mediated mRNA decay (NMD). The isoforms lacking the transmembrane domain may negatively regulate the apoptosis mediated by the full length isoform. [provided by RefSeq, Mar 2011]

FAS Gene-Disease associations (from GenCC):

• autoimmune lymphoproliferative syndrome

  Inheritance: AD, AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, Orphanet
• autoimmune lymphoproliferative syndrome type 1

  Inheritance: AD, AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM1: In a hotspot region, there are 13 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 6 uncertain in NM_000043.6
• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.41325247).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000043.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FAS	NM_000043.6	MANE Select	c.756T>G	p.Asn252Lys	missense	Exon 9 of 9	NP_000034.1
	FAS	NM_001410956.1		c.801T>G	p.Asn267Lys	missense	Exon 9 of 9	NP_001397885.1
	FAS	NM_152871.4		c.693T>G	p.Asn231Lys	missense	Exon 8 of 8	NP_690610.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FAS	ENST00000652046.1	MANE Select	c.756T>G	p.Asn252Lys	missense	Exon 9 of 9	ENSP00000498466.1
	FAS	ENST00000357339.7	TSL:1	c.693T>G	p.Asn231Lys	missense	Exon 8 of 8	ENSP00000349896.2
	FAS	ENST00000313771.10	TSL:1	n.1065T>G		non_coding_transcript_exon	Exon 9 of 9

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: not provided

Submissions summary: Other:1

Revision: no classification provided

Submissions by phenotype

not specified Other:1

Sep 19, 2013

ITMI

Significance: not provided

Review Status: no classification provided

Collection Method: reference population

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.47
BayesDel_addAF	Benign	-0.067	T
BayesDel_noAF	Benign	-0.33
CADD	Benign	17
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.89	D
Eigen	Benign	-0.063
Eigen_PC	Benign	-0.26
FATHMM_MKL	Benign	0.044	N
LIST_S2	Uncertain	0.86	D
M_CAP	Uncertain	0.12	D
MetaRNN	Benign	0.41	T
MetaSVM	Uncertain	0.18	D
MutationAssessor	Uncertain	2.8	M
PhyloP100		-0.29
PrimateAI	Uncertain	0.64	T
PROVEAN	Uncertain	-3.4	D
REVEL	Uncertain	0.39
Sift	Uncertain	0.0050	D
Sift4G	Uncertain	0.0090	D
Polyphen		1.0	D
Vest4		0.29
MutPred		0.60		Gain of loop (P = 0.0166)
MVP		0.92
MPC		0.89
ClinPred		0.97	D
GERP RS		-0.36
Varity_R		0.87
Mutation Taster		=73/27	polymorphism

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

Other links and lift over

dbSNP: rs587778348; hg19: chr10-90773955;