Genetic Variant NM_052839.4:c.844C>A (chr22-50177556-C-A) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_052839.4(PANX2):c.844C>A(p.Pro282Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,862 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 34)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PANX2
NM_052839.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.46

Variant links:

Genes affected

PANX2 (HGNC:8600): (pannexin 2) The protein encoded by this gene belongs to the innexin family. Innexin family members are the structural components of gap junctions. This protein and pannexin 1 are abundantly expressed in central nervous system (CNS) and are coexpressed in various neuronal populations. Studies in Xenopus oocytes suggest that this protein alone and in combination with pannexin 1 may form cell type-specific gap junctions with distinct properties. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2009]

PANX2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.827

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PANX2	NM_052839.4 link	c.844C>A	p.Pro282Thr	missense_variant	Exon 2 of 3	ENST00000395842.3	NP_443071.2	Q96RD6-3B3KTT7Q495U3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
PANX2	ENST00000395842.3 link	c.844C>A	p.Pro282Thr	missense_variant	Exon 2 of 3	2	NM_052839.4	ENSP00000379183.2	Q96RD6-3
PANX2	ENST00000159647.9 link	c.844C>A	p.Pro282Thr	missense_variant	Exon 2 of 4	1		ENSP00000159647.5	Q96RD6-1
PANX2	ENST00000402472.2 link	n.*631C>A		non_coding_transcript_exon_variant	Exon 3 of 5	2		ENSP00000384148.2	F8W8Y4
PANX2	ENST00000402472.2 link	n.*631C>A		3_prime_UTR_variant	Exon 3 of 5	2		ENSP00000384148.2	F8W8Y4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1459862

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726256

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 29, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.844C>A (p.P282T) alteration is located in exon 2 (coding exon 2) of the PANX2 gene. This alteration results from a C to A substitution at nucleotide position 844, causing the proline (P) at amino acid position 282 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.93

BayesDel_addAF

Pathogenic

0.17

BayesDel_noAF

Uncertain

0.0

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.030

.;T

Eigen

Benign

0.12

Eigen_PC

Benign

0.18

FATHMM_MKL

Uncertain

0.92

LIST_S2

Pathogenic

0.99

D;D

M_CAP

Benign

0.021

MetaRNN

Pathogenic

0.83

D;D

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.66

N;N

PrimateAI

Pathogenic

0.83

PROVEAN

Benign

-1.1

N;N

REVEL

Benign

0.27

Sift

Benign

0.50

T;T

Sift4G

Pathogenic

0.0

D;D

Polyphen

0.85

P;P

Vest4

0.92

MutPred

0.68

Gain of MoRF binding (P = 0.1046);Gain of MoRF binding (P = 0.1046);

MVP

0.29

MPC

2.6

ClinPred

0.91

GERP RS

4.4

Varity_R

0.14

gMVP

0.92

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

No publications associated with this variant yet.

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