NM_181882.3:c.*152A>G

Variant names:

• chr19-40393814-T-C
• rs886054435
• NM_181882.3:c.*152A>G

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_181882.3(PRX):​c.*152A>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000234 in 1,194,310 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000026 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000023 (0 hom.)
• Consequence: PRX NM_181882.3 3_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.378
• Publications: 0 publications found

Genes affected

PRX (HGNC:13797): (periaxin) This gene encodes a protein involved in peripheral nerve myelin upkeep. The encoded protein contains 2 PDZ domains which were named after PSD95 (post synaptic density protein), DlgA (Drosophila disc large tumor suppressor), and ZO1 (a mammalian tight junction protein). Two alternatively spliced transcript variants have been described for this gene which encode different protein isoforms and which are targeted differently in the Schwann cell. Mutations in this gene cause Charcot-Marie-Tooth neuoropathy, type 4F and Dejerine-Sottas neuropathy. [provided by RefSeq, Jul 2008]

PRX Gene-Disease associations (from GenCC):

• Charcot-Marie-Tooth disease type 4

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• Charcot-Marie-Tooth disease type 4F

  Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet
• Charcot-Marie-Tooth disease type 3

  Inheritance: AD, AR Classification: MODERATE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.87).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_181882.3. 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
	PRX	NM_181882.3	MANE Select	c.*152A>G		3_prime_UTR	Exon 7 of 7	NP_870998.2	Q9BXM0-1
	PRX	NM_001411127.1		c.*152A>G		3_prime_UTR	Exon 7 of 7	NP_001398056.1	A0A669KBF1
	PRX	NM_020956.2		c.*4743A>G		3_prime_UTR	Exon 6 of 6	NP_066007.1	Q9BXM0-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRX	ENST00000324001.8	TSL:1 MANE Select	c.*152A>G		3_prime_UTR	Exon 7 of 7	ENSP00000326018.6	Q9BXM0-1
	PRX	ENST00000291825.11	TSL:1	c.*4743A>G		3_prime_UTR	Exon 6 of 6	ENSP00000291825.6	Q9BXM0-2
	PRX	ENST00000674005.2		c.*152A>G		3_prime_UTR	Exon 7 of 7	ENSP00000501261.1	A0A669KBF1

Frequencies

GnomAD3 genomes AF: 0.0000263 AC: 4 AN: 152108 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000588

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.0000230 AC: 24 AN: 1042202 Hom.: 0 Cov.: 13 AF XY: 0.0000210 AC XY: 11 AN XY: 524308

African (AFR) AF: 0.00 AC: 0 AN: 24762

American (AMR) AF: 0.00 AC: 0 AN: 33722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 20088

East Asian (EAS) AF: 0.00 AC: 0 AN: 35910

South Asian (SAS) AF: 0.00 AC: 0 AN: 68926

European-Finnish (FIN) AF: 0.0000282 AC: 1 AN: 35426

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 3276

European-Non Finnish (NFE) AF: 0.0000284 AC: 22 AN: 773784

Other (OTH) AF: 0.0000216 AC: 1 AN: 46308

GnomAD4 genome AF: 0.0000263 AC: 4 AN: 152108 Hom.: 0 Cov.: 33 AF XY: 0.0000404 AC XY: 3 AN XY: 74298

African (AFR) AF: 0.00 AC: 0 AN: 41410

American (AMR) AF: 0.00 AC: 0 AN: 15270

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5186

South Asian (SAS) AF: 0.00 AC: 0 AN: 4824

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10618

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000588 AC: 4 AN: 68016

Other (OTH) AF: 0.00 AC: 0 AN: 2086

Alfa AF: 0.0000712 Hom.: 0

Bravo AF: 0.0000264

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Charcot-Marie-Tooth disease type 4F (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.87
CADD	Benign	1.1
DANN	Benign	0.80
PhyloP100		-0.38

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: rs886054435; hg19: chr19-40899721;