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GeneBe

9-110136319-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_007203.5(PALM2AKAP2):c.775G>A(p.Ala259Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000182 in 1,614,060 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict 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. A259A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00013 ( 2 hom. )

Consequence

PALM2AKAP2
NM_007203.5 missense

Scores

17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.900
Variant links:
Genes affected
PALM2AKAP2 (HGNC:33529): (PALM2 and AKAP2 fusion) This gene belongs to the paralemmin downstream gene (PDG) family defined in PMID:22855693. Paralemmin downstream genes may have evolved contiguously with the paralemmin genes and are associated with other paralemmin paralogs in humans and several other taxa. The gene encodes three distinct protein isoforms, the PALM2 isoform, the AKAP2 isoform and the PALM2-AKAP2 isoform. The biological significance of the PALM2-AKAP2 isoforms is yet unknown. Earlier, PALM2 and AKAP2 were annotated as separate genes and PALM2-AKAP2 was annotated as a readthrough gene. [provided by RefSeq, May 2019]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.007681966).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PALM2AKAP2NM_007203.5 linkuse as main transcriptc.775G>A p.Ala259Thr missense_variant 8/11 ENST00000374530.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PALM2AKAP2ENST00000374530.8 linkuse as main transcriptc.775G>A p.Ala259Thr missense_variant 8/112 NM_007203.5

Frequencies

GnomAD3 genomes
AF:
0.000658
AC:
100
AN:
152082
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00198
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000458
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000132
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.000277
AC:
69
AN:
248912
Hom.:
0
AF XY:
0.000223
AC XY:
30
AN XY:
134732
show subpopulations
Gnomad AFR exome
AF:
0.00209
Gnomad AMR exome
AF:
0.000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000217
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000809
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.000133
AC:
194
AN:
1461860
Hom.:
2
Cov.:
32
AF XY:
0.000125
AC XY:
91
AN XY:
727232
show subpopulations
Gnomad4 AFR exome
AF:
0.00170
Gnomad4 AMR exome
AF:
0.000559
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.000176
Gnomad4 SAS exome
AF:
0.0000696
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000477
Gnomad4 OTH exome
AF:
0.000381
GnomAD4 genome
AF:
0.000657
AC:
100
AN:
152200
Hom.:
0
Cov.:
32
AF XY:
0.000645
AC XY:
48
AN XY:
74422
show subpopulations
Gnomad4 AFR
AF:
0.00197
Gnomad4 AMR
AF:
0.000458
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000132
Gnomad4 OTH
AF:
0.000474
Alfa
AF:
0.000223
Hom.:
0
Bravo
AF:
0.000797
ESP6500AA
AF:
0.00159
AC:
7
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000288
AC:
35
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.000119

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 GeneticsSep 22, 2022The c.775G>A (p.A259T) alteration is located in exon 8 (coding exon 8) of the PALM2-AKAP2 gene. This alteration results from a G to A substitution at nucleotide position 775, causing the alanine (A) at amino acid position 259 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
Benign
0.067
BayesDel_addAF
Benign
-0.53
T
BayesDel_noAF
Benign
-0.54
Cadd
Benign
13
Dann
Benign
0.88
Eigen
Benign
-0.95
Eigen_PC
Benign
-0.84
FATHMM_MKL
Benign
0.33
N
LIST_S2
Benign
0.84
T;T;T;T;T;T
M_CAP
Benign
0.0071
T
MetaRNN
Benign
0.0077
T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
1.0
N;N;N;N;N;N;N
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-0.25
N;N;N;N;N;N
REVEL
Benign
0.0070
Sift
Benign
0.30
T;.;T;T;T;T
Sift4G
Benign
0.61
T;T;T;T;T;T
Polyphen
0.011, 0.027, 0.0020, 0.23
.;.;B;B;B;B
Vest4
0.062
MVP
0.092
MPC
0.082
ClinPred
0.0023
T
GERP RS
2.3
Varity_R
0.022
gMVP
0.18

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: rs139544328; hg19: chr9-112898599; API