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GeneBe

22-50177382-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_052839.4(PANX2):​c.670G>A​(p.Ala224Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000618 in 1,457,382 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 34)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

PANX2
NM_052839.4 missense

Scores

7
3
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.48
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PANX2NM_052839.4 linkuse as main transcriptc.670G>A p.Ala224Thr missense_variant 2/3 ENST00000395842.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PANX2ENST00000395842.3 linkuse as main transcriptc.670G>A p.Ala224Thr missense_variant 2/32 NM_052839.4 P2Q96RD6-3
PANX2ENST00000159647.9 linkuse as main transcriptc.670G>A p.Ala224Thr missense_variant 2/41 A2Q96RD6-1
PANX2ENST00000402472.2 linkuse as main transcriptc.*457G>A 3_prime_UTR_variant, NMD_transcript_variant 3/52

Frequencies

GnomAD3 genomes
Cov.:
34
GnomAD3 exomes
AF:
0.00000415
AC:
1
AN:
240994
Hom.:
0
AF XY:
0.00000761
AC XY:
1
AN XY:
131430
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000924
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000618
AC:
9
AN:
1457382
Hom.:
0
Cov.:
33
AF XY:
0.00000828
AC XY:
6
AN XY:
724732
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:
0.00000811
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
34
ExAC
AF:
0.00000827
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 15, 2023The c.670G>A (p.A224T) alteration is located in exon 2 (coding exon 2) of the PANX2 gene. This alteration results from a G to A substitution at nucleotide position 670, causing the alanine (A) at amino acid position 224 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
Uncertain
0.073
D
BayesDel_noAF
Benign
-0.13
CADD
Pathogenic
31
DANN
Pathogenic
1.0
Eigen
Pathogenic
0.69
Eigen_PC
Pathogenic
0.69
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Pathogenic
0.99
D;D
M_CAP
Benign
0.016
T
MetaRNN
Uncertain
0.74
D;D
MetaSVM
Benign
-0.92
T
MutationAssessor
Benign
1.7
L;L
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.85
D
PROVEAN
Benign
-1.1
N;N
REVEL
Benign
0.18
Sift
Benign
0.044
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;D
Vest4
0.81
MutPred
0.65
Loss of stability (P = 0.0742);Loss of stability (P = 0.0742);
MVP
0.34
MPC
2.5
ClinPred
0.77
D
GERP RS
5.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.29
gMVP
0.78

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs756068333; hg19: chr22-50615811; API