Genetic Variant PAX3:p.Pro335Ser (chr2-222220310-G-A) – ACMG Classification: Benign (-12 pts)

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 1P and 13B. PP2BP4_StrongBP6BS1BS2

The NM_181458.4(PAX3):c.1003C>T(p.Pro335Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000724 in 1,614,090 control chromosomes in the GnomAD database, including 20 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00050 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00075 ( 19 hom. )

Consequence

PAX3
NM_181458.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: 9.57

Publications

0 publications found

Variant links:

Genes affected

PAX3 (HGNC:8617): (paired box 3) This gene is a member of the paired box (PAX) family of transcription factors. Members of the PAX family typically contain a paired box domain and a paired-type homeodomain. These genes play critical roles during fetal development. Mutations in paired box gene 3 are associated with Waardenburg syndrome, craniofacial-deafness-hand syndrome, and alveolar rhabdomyosarcoma. The translocation t(2;13)(q35;q14), which represents a fusion between PAX3 and the forkhead gene, is a frequent finding in alveolar rhabdomyosarcoma. Alternative splicing results in transcripts encoding isoforms with different C-termini. [provided by RefSeq, Jul 2008]

PAX3 Gene-Disease associations (from GenCC):

craniofacial-deafness-hand syndrome
Inheritance: AD, Unknown Classification: DEFINITIVE, SUPPORTIVE, LIMITED Submitted by: Orphanet, G2P, Labcorp Genetics (formerly Invitae)
Waardenburg syndrome
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
Waardenburg syndrome type 1
Inheritance: AR, AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: PanelApp Australia, G2P, Orphanet, Labcorp Genetics (formerly Invitae)
Waardenburg syndrome type 3
Inheritance: AR, AD Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)

PAX3 links:

LOC107985991 (HGNC:):

LOC107985991 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -12 ACMG points.

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 47 curated pathogenic missense variants (we use a threshold of 10). The gene has 9 curated benign missense variants. Gene score misZ: 1.618 (below the threshold of 3.09). Trascript score misZ: 1.7934 (below the threshold of 3.09). GenCC associations: The gene is linked to Waardenburg syndrome type 3, Waardenburg syndrome type 1, Waardenburg syndrome, craniofacial-deafness-hand syndrome.

BP4

Computational evidence support a benign effect (MetaRNN=0.009261638).

BP6

Variant 2-222220310-G-A is Benign according to our data. Variant chr2-222220310-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 226993.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000499 (76/152300) while in subpopulation SAS AF = 0.0154 (74/4818). AF 95% confidence interval is 0.0125. There are 1 homozygotes in GnomAd4. There are 58 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 19 AR,AD,Unknown gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_181458.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
PAX3	NM_181458.4	MANE Select	c.1003C>T	p.Pro335Ser	missense	Exon 7 of 9	NP_852123.1
PAX3	NM_181459.4		c.1003C>T	p.Pro335Ser	missense	Exon 7 of 10	NP_852124.1
PAX3	NM_001127366.3		c.1000C>T	p.Pro334Ser	missense	Exon 7 of 9	NP_001120838.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
PAX3	ENST00000392070.7	TSL:1 MANE Select	c.1003C>T	p.Pro335Ser	missense	Exon 7 of 9	ENSP00000375922.3
PAX3	ENST00000409551.7	TSL:1	c.1000C>T	p.Pro334Ser	missense	Exon 7 of 9	ENSP00000386750.3
PAX3	ENST00000336840.11	TSL:1	c.1003C>T	p.Pro335Ser	missense	Exon 7 of 9	ENSP00000338767.5

Frequencies

GnomAD3 genomes

AF:

0.000493

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.0151

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00150

AC:

378

AN:

251358

AF XY:

0.00205

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.000815

GnomAD4 exome

AF:

0.000748

AC:

1093

AN:

1461790

Hom.:

Cov.:

AF XY:

0.00107

AC XY:

775

AN XY:

727198

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33476

American (AMR)

AF:

0.0000224

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39690

South Asian (SAS)

AF:

0.0118

AC:

1018

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.000694

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00000630

AC:

AN:

1111936

Other (OTH)

AF:

0.00103

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

152

228

304

380

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000499

AC:

AN:

152300

Hom.:

Cov.:

AF XY:

0.000779

AC XY:

AN XY:

74458

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41568

American (AMR)

AF:

0.00

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5178

South Asian (SAS)

AF:

0.0154

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68030

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.489

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000775

Hom.:

Bravo

AF:

0.0000982

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00152

AC:

185

Asia WGS

AF:

0.00635

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Usher syndrome

Uncertain:1

SN ONGC Dept of Genetics and Molecular biology Vision Research Foundation

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:research

not specified

Benign:1

Mar 20, 2016

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

p.Pro334Ser in exon 7 of PAX3: This variant is not expected to have clinical sig nificance because it has been identified in 1.1% (182/16510) of South Asian chro mosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.or g; dbSNP rs151199924).

Craniofacial-deafness-hand syndrome

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease.

not provided

Benign:1

Mar 18, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Waardenburg syndrome

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.70

BayesDel_addAF

Benign

-0.094

BayesDel_noAF

Uncertain

0.10

CADD

Uncertain

(source)

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.65

Eigen

Pathogenic

0.77

Eigen_PC

Pathogenic

0.79

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.99

MetaRNN

Benign

0.0093

MetaSVM

Uncertain

0.75

MutationAssessor

Uncertain

2.1

PhyloP100

9.6

PrimateAI

Uncertain

0.73

PROVEAN

Uncertain

-3.9

REVEL

Uncertain

0.64

Sift

Uncertain

0.017

Sift4G

Benign

0.22

Polyphen

1.0

Vest4

0.55

MVP

0.77

MPC

1.3

ClinPred

0.081

GERP RS

5.7

Varity_R

0.30

gMVP

0.61

Mutation Taster

=96/4

polymorphism

(source)

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

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over