20-50731812-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_032521.3(PARD6B):​c.26C>T​(p.Ala9Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000813 in 1,462,904 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000084 ( 0 hom. )

Consequence

PARD6B
NM_032521.3 missense

Scores

1
2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.24
Variant links:
Genes affected
PARD6B (HGNC:16245): (par-6 family cell polarity regulator beta) This gene is a member of the PAR6 family and encodes a protein with a PSD95/Discs-large/ZO1 (PDZ) domain, an OPR domain and a semi-Cdc42/Rac interactive binding (CRIB) domain. This cytoplasmic protein is involved in asymmetrical cell division and cell polarization processes as a member of a multi-protein complex. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.07568815).
BS2
High AC in GnomAd4 at 9 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PARD6BNM_032521.3 linkuse as main transcriptc.26C>T p.Ala9Val missense_variant 1/3 ENST00000371610.7 NP_115910.1 Q9BYG5-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PARD6BENST00000371610.7 linkuse as main transcriptc.26C>T p.Ala9Val missense_variant 1/31 NM_032521.3 ENSP00000360672.2 Q9BYG5-1
PARD6BENST00000396039.1 linkuse as main transcriptc.26C>T p.Ala9Val missense_variant 1/31 ENSP00000379354.1 Q9BYG5-2

Frequencies

GnomAD3 genomes
AF:
0.0000592
AC:
9
AN:
152112
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
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:
0.000103
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000800
AC:
6
AN:
75026
Hom.:
0
AF XY:
0.0000692
AC XY:
3
AN XY:
43332
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:
0.000219
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000839
AC:
110
AN:
1310684
Hom.:
0
Cov.:
31
AF XY:
0.0000882
AC XY:
57
AN XY:
646006
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:
0.000100
Gnomad4 OTH exome
AF:
0.0000920
GnomAD4 genome
AF:
0.0000591
AC:
9
AN:
152220
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74406
show subpopulations
Gnomad4 AFR
AF:
0.0000481
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000103
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000214
Hom.:
0
Bravo
AF:
0.000121
ExAC
AF:
0.0000389
AC:
2

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 GeneticsNov 25, 2024The c.26C>T (p.A9V) alteration is located in exon 1 (coding exon 1) of the PARD6B gene. This alteration results from a C to T substitution at nucleotide position 26, causing the alanine (A) at amino acid position 9 to be replaced by a valine (V). 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
Benign
0.11
BayesDel_addAF
Benign
-0.34
T
BayesDel_noAF
Benign
-0.72
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0086
T;.
Eigen
Benign
-0.62
Eigen_PC
Benign
-0.48
FATHMM_MKL
Benign
0.51
D
LIST_S2
Benign
0.63
T;T
M_CAP
Uncertain
0.21
D
MetaRNN
Benign
0.076
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.83
L;L
PrimateAI
Pathogenic
0.80
T
PROVEAN
Benign
-0.84
N;N
REVEL
Benign
0.026
Sift
Benign
0.20
T;T
Sift4G
Benign
0.36
T;T
Polyphen
0.0020
B;.
Vest4
0.14
MutPred
0.17
Loss of relative solvent accessibility (P = 0.0186);Loss of relative solvent accessibility (P = 0.0186);
MVP
0.16
MPC
0.32
ClinPred
0.063
T
GERP RS
2.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.088
gMVP
0.30

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
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: rs566218345; hg19: chr20-49348349; API