rs1556024541

Variant names:

• chrX-22094082-G-A
• rs1556024541
• NM_000444.6:c.832G>A

Your query was ambiguous. Multiple possible variants found:

• chrX-22094082-G-A
• chrX-22094082-G-T

Variant summary

Our verdict is Likely pathogenic. The variant received 9 ACMG points: 9P and 0B. PM1 PM2 PP2 PP3_Strong

The NM_000444.6(PHEX):​c.832G>A​(p.Glu278Lys) variant causes a missense change. 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 Uncertain significance (★).

• Frequency: Genomes: not found (cov: 23)
• Consequence: PHEX NM_000444.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.89
• Publications: 0 publications found

Genes affected

PHEX (HGNC:8918): (phosphate regulating endopeptidase X-linked) The protein encoded by this gene is a transmembrane endopeptidase that belongs to the type II integral membrane zinc-dependent endopeptidase family. The protein is thought to be involved in bone and dentin mineralization and renal phosphate reabsorption. Mutations in this gene cause X-linked hypophosphatemic rickets. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2013]

PHEX Gene-Disease associations (from GenCC):

• X-linked dominant hypophosphatemic rickets

  Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Illumina, Orphanet, ClinGen

ACMG classification

Our verdict: Likely_pathogenic. The variant received 9 ACMG points.

• PM1: In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 3 uncertain in NM_000444.6
• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 135 curated pathogenic missense variants (we use a threshold of 10). The gene has 25 curated benign missense variants. Gene score misZ: 1.7091 (below the threshold of 3.09). Trascript score misZ: NaN (below the threshold of 3.09). GenCC associations: The gene is linked to X-linked dominant hypophosphatemic rickets.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.991

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000444.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PHEX	NM_000444.6	MANE Select	c.832G>A	p.Glu278Lys	missense	Exon 7 of 22	NP_000435.3
	PHEX	NM_001282754.2		c.832G>A	p.Glu278Lys	missense	Exon 7 of 21	NP_001269683.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PHEX	ENST00000379374.5	TSL:1 MANE Select	c.832G>A	p.Glu278Lys	missense	Exon 7 of 22	ENSP00000368682.4	P78562
	PHEX	ENST00000684143.1		c.829G>A	p.Glu277Lys	missense	Exon 7 of 11	ENSP00000508264.1	A0A804HLA0
	PHEX	ENST00000475778.2	TSL:5	n.1258G>A		non_coding_transcript_exon	Exon 7 of 9

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Cov.: 22

GnomAD4 genome Cov.: 23

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.54	D
BayesDel_noAF	Pathogenic	0.54
CADD	Pathogenic	27
DANN	Pathogenic	1.0
DEOGEN2	Pathogenic	0.95	D
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Uncertain	0.91	D
M_CAP	Pathogenic	0.71	D
MetaRNN	Pathogenic	0.99	D
MetaSVM	Uncertain	0.78	D
MutationAssessor	Pathogenic	3.3	M
PhyloP100		6.9
PrimateAI	Uncertain	0.71	T
PROVEAN	Uncertain	-3.9	D
REVEL	Pathogenic	0.91
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.0090	D
Polyphen		1.0	D
Vest4		0.93
MutPred		0.87		Gain of MoRF binding (P = 0.0046)
MVP		0.99
MPC		1.2
ClinPred		1.0	D
GERP RS		5.5
Varity_R		0.97
gMVP		0.99
Mutation Taster		=53/47	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: rs1556024541; hg19: chrX-22112200; COSMIC: COSV65078448;