rs132630258

Positions:

• chrX-47627564-G-A

Variant summary

Our verdict is Pathogenic. Variant got 13 ACMG points: 13P and 0B. PVS1 PM2 PP3_Moderate PP5

The NM_001145252.3(CFP):​c.481C>T​(p.Arg161Ter) variant causes a stop gained 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 Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 24)
• Consequence: CFP NM_001145252.3 stop_gained
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 1.85

Genes affected

CFP (HGNC:8864): (complement factor properdin) This gene encodes a plasma glycoprotein that positively regulates the alternative complement pathway of the innate immune system. This protein binds to many microbial surfaces and apoptotic cells and stabilizes the C3- and C5-convertase enzyme complexes in a feedback loop that ultimately leads to formation of the membrane attack complex and lysis of the target cell. Mutations in this gene result in two forms of properdin deficiency, which results in high susceptibility to meningococcal infections. Multiple alternatively spliced variants, encoding the same protein, have been identified.[provided by RefSeq, Feb 2009]

ACMG classification

Verdict is Pathogenic. Variant got 13 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP3: Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
• PP5: Variant X-47627564-G-A is Pathogenic according to our data. Variant chrX-47627564-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 11181.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CFP	NM_001145252.3	c.481C>T	p.Arg161Ter	stop_gained	4/9	ENST00000396992.8	NP_001138724.1
CFP	NM_002621.2	c.481C>T	p.Arg161Ter	stop_gained	5/10		NP_002612.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CFP	ENST00000396992.8	c.481C>T	p.Arg161Ter	stop_gained	4/9	1	NM_001145252.3	ENSP00000380189	P1

Frequencies

GnomAD3 genomes Cov.: 24

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 24

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Properdin deficiency, X-linked Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Sep 01, 1995

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.72	D
BayesDel_noAF	Pathogenic	0.26
CADD	Pathogenic	36
DANN	Uncertain	0.99
FATHMM_MKL	Uncertain	0.76	D
MutationTaster	Benign	1.0	A;A;A
Vest4		0.87
GERP RS		2.5

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.96		Details are displayed if max score is > 0.2
DS_DG_spliceai		0.96		Position offset: 2

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

Publications

LitVar

Other links and lift over

dbSNP: rs132630258; hg19: chrX-47486963;