X-123888614-C-T

Position:

chrX-123888614-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The ENST00000371199.8(XIAP):c.878-5C>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000142 in 1,204,473 control chromosomes in the GnomAD database, including 1 homozygotes. There are 70 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000098 ( 0 hom., 4 hem., cov: 24)

Exomes 𝑓: 0.00015 ( 1 hom. 66 hem. )

Consequence

XIAP
ENST00000371199.8 splice_region, splice_polypyrimidine_tract, intron

Scores

Splicing: ADA: 0.00001532

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 1.21

Variant links:

Genes affected

XIAP (HGNC:592): (X-linked inhibitor of apoptosis) This gene encodes a protein that belongs to a family of apoptotic suppressor proteins. Members of this family share a conserved motif termed, baculovirus IAP repeat, which is necessary for their anti-apoptotic function. This protein functions through binding to tumor necrosis factor receptor-associated factors TRAF1 and TRAF2 and inhibits apoptosis induced by menadione, a potent inducer of free radicals, and interleukin 1-beta converting enzyme. This protein also inhibits at least two members of the caspase family of cell-death proteases, caspase-3 and caspase-7. Mutations in this gene are the cause of X-linked lymphoproliferative syndrome. Alternate splicing results in multiple transcript variants. Pseudogenes of this gene are found on chromosomes 2 and 11.[provided by RefSeq, Feb 2011]

XIAP links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.78).

BP6

Variant X-123888614-C-T is Benign according to our data. Variant chrX-123888614-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 465074.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-123888614-C-T is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.0000984 (11/111787) while in subpopulation SAS AF= 0.00145 (4/2754). AF 95% confidence interval is 0.000496. There are 0 homozygotes in gnomad4. There are 4 alleles in male gnomad4 subpopulation. Median coverage is 24. This position pass quality control queck.

BS2

High Hemizygotes in GnomAd4 at 4 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
XIAP	NM_001167.4 linkuse as main transcript	c.878-5C>T		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000371199.8	NP_001158.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
XIAP	ENST00000371199.8 linkuse as main transcript	c.878-5C>T		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		1	NM_001167.4	ENSP00000360242	P1

Frequencies

GnomAD3 genomes

AF:

0.0000984

AC:

AN:

111787

Hom.:

Cov.:

AF XY:

0.000118

AC XY:

AN XY:

34003

show subpopulations

Gnomad AFR

AF:

0.0000651

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00145

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000752

Gnomad OTH

AF:

0.000666

GnomAD3 exomes

AF:

0.000213

AC:

AN:

183477

Hom.:

AF XY:

0.000265

AC XY:

AN XY:

67919

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:

0.00126

Gnomad FIN exome

AF:

0.000125

Gnomad NFE exome

AF:

0.000159

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000146

AC:

160

AN:

1092686

Hom.:

Cov.:

AF XY:

0.000184

AC XY:

AN XY:

358500

show subpopulations

Gnomad4 AFR exome

AF:

0.000190

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00135

Gnomad4 FIN exome

AF:

0.0000741

Gnomad4 NFE exome

AF:

0.0000693

Gnomad4 OTH exome

AF:

0.000196

GnomAD4 genome

AF:

0.0000984

AC:

AN:

111787

Hom.:

Cov.:

AF XY:

0.000118

AC XY:

AN XY:

34003

show subpopulations

Gnomad4 AFR

AF:

0.0000651

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00145

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000752

Gnomad4 OTH

AF:

0.000666

Bravo

AF:

0.0000680

EpiCase

AF:

0.000382

EpiControl

AF:

0.000237

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Likely benign, no assertion criteria provided	clinical testing	Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen	-	- -
Likely benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Jan 01, 2023	XIAP: BP4, BS2 -

X-linked lymphoproliferative disease due to XIAP deficiency

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 01, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.78

CADD

Benign

2.2

DANN

Benign

0.42

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000015

dbscSNV1_RF

Benign

0.0

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