20-21705789-C-T

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001257096.2(PAX1):c.77C>T(p.Pro26Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000888 in 1,126,308 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 (★). Synonymous variant affecting the same amino acid position (i.e. P26P) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 8.9e-7 ( 0 hom. )

Consequence

PAX1
NM_001257096.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.350

Variant links:

Genes affected

PAX1 (HGNC:8615): (paired box 1) 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. This gene plays a role in pattern formation during embryogenesis and may be essential for development of the vertebral column. This gene is silenced by methylation in ovarian and cervical cancers and may be a tumor suppressor gene. Mutations in this gene are also associated with vertebral malformations. [provided by RefSeq, Mar 2012]

PAX1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.14089227).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PAX1	NM_001257096.2 link	c.77C>T	p.Pro26Leu	missense_variant	Exon 1 of 5	ENST00000613128.5	NP_001244025.1	A0A087WXV5
PAX1	NM_006192.5 link	c.77C>T	p.Pro26Leu	missense_variant	Exon 1 of 5		NP_006183.2	P15863-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PAX1	ENST00000613128.5 link	c.77C>T	p.Pro26Leu	missense_variant	Exon 1 of 5	1	NM_001257096.2	ENSP00000481334.1		A0A087WXV5
PAX1	ENST00000398485.6 link	c.77C>T	p.Pro26Leu	missense_variant	Exon 1 of 5	5		ENSP00000381499.2		P15863-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

8.88e-7

AC:

AN:

1126308

Hom.:

Cov.:

AF XY:

0.00000185

AC XY:

AN XY:

540752

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

22914

American (AMR)

AF:

0.00

AC:

AN:

8418

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

14298

East Asian (EAS)

AF:

0.00

AC:

AN:

26646

South Asian (SAS)

AF:

0.00

AC:

AN:

24572

European-Finnish (FIN)

AF:

0.00

AC:

AN:

34660

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3046

European-Non Finnish (NFE)

AF:

0.00000106

AC:

AN:

946774

Other (OTH)

AF:

0.00

AC:

AN:

44980

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Jan 29, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant has not been reported in the literature in individuals with PAX1-related conditions. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate insufficient coverage at this position in the ExAC database. This sequence change replaces proline with leucine at codon 26 of the PAX1 protein (p.Pro26Leu). The proline residue is weakly conserved and there is a moderate physicochemical difference between proline and leucine. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Uncertain

0.046

BayesDel_noAF

Benign

-0.17

CADD

Benign

(source)

DANN

Benign

0.93

DEOGEN2

Benign

0.12

T;T

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.11

LIST_S2

Benign

0.49

T;T

M_CAP

Pathogenic

0.34

MetaRNN

Benign

0.14

T;T

MetaSVM

Uncertain

-0.029

MutationAssessor

Benign

0.55

N;.

PhyloP100

0.35

PrimateAI

Uncertain

0.78

PROVEAN

Benign

-1.3

N;.

REVEL

Uncertain

0.33

Sift

Uncertain

0.029

D;.

Sift4G

Pathogenic

0.0

D;D

Polyphen

0.035

B;.

Vest4

0.14

MutPred

0.24

Loss of loop (P = 0.0022);Loss of loop (P = 0.0022);

MVP

0.72

MPC

1.4

ClinPred

0.057

GERP RS

-4.0

PromoterAI

0.0092

Neutral

(source)

Varity_R

0.058

gMVP

0.22

Mutation Taster

=97/3

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over