5-140795384-C-G

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_018905.3(PCDHA2):ā€‹c.420C>Gā€‹(p.Ile140Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0024 in 1,614,140 control chromosomes in the GnomAD database, including 12 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…).

Frequency

Genomes: š‘“ 0.0021 ( 1 hom., cov: 33)
Exomes š‘“: 0.0024 ( 11 hom. )

Consequence

PCDHA2
NM_018905.3 missense

Scores

3
14

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -3.79
Variant links:
Genes affected
PCDHA2 (HGNC:8668): (protocadherin alpha 2) This gene is a member of the protocadherin alpha gene cluster, one of three related gene clusters tandemly linked on chromosome five that demonstrate an unusual genomic organization similar to that of B-cell and T-cell receptor gene clusters. The alpha gene cluster is composed of 15 cadherin superfamily genes related to the mouse CNR genes and consists of 13 highly similar and 2 more distantly related coding sequences. The tandem array of 15 N-terminal exons, or variable exons, are followed by downstream C-terminal exons, or constant exons, which are shared by all genes in the cluster. The large, uninterrupted N-terminal exons each encode six cadherin ectodomains while the C-terminal exons encode the cytoplasmic domain. These neural cadherin-like cell adhesion proteins are integral plasma membrane proteins that most likely play a critical role in the establishment and function of specific cell-cell connections in the brain. Alternative splicing has been observed and additional variants have been suggested but their full-length nature has yet to be determined. [provided by RefSeq, Jul 2008]
PCDHA1 (HGNC:8663): (protocadherin alpha 1) This gene is a member of the protocadherin alpha gene cluster, one of three related gene clusters tandemly linked on chromosome five that demonstrate an unusual genomic organization similar to that of B-cell and T-cell receptor gene clusters. The alpha gene cluster is composed of 15 cadherin superfamily genes related to the mouse CNR genes and consists of 13 highly similar and 2 more distantly related coding sequences. The tandem array of 15 N-terminal exons, or variable exons, are followed by downstream C-terminal exons, or constant exons, which are shared by all genes in the cluster. The large, uninterrupted N-terminal exons each encode six cadherin ectodomains while the C-terminal exons encode the cytoplasmic domain. These neural cadherin-like cell adhesion proteins are integral plasma membrane proteins that most likely play a critical role in the establishment and function of specific cell-cell connections in the brain. Alternative splicing has been observed and additional variants have been suggested but their full-length nature has yet to be determined. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0046224594).
BP6
Variant 5-140795384-C-G is Benign according to our data. Variant chr5-140795384-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 2655747.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Homozygotes in GnomAdExome4 at 11 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PCDHA2NM_018905.3 linkuse as main transcriptc.420C>G p.Ile140Met missense_variant 1/4 ENST00000526136.2 NP_061728.1
PCDHA1NM_018900.4 linkuse as main transcriptc.2394+6700C>G intron_variant ENST00000504120.4 NP_061723.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PCDHA2ENST00000526136.2 linkuse as main transcriptc.420C>G p.Ile140Met missense_variant 1/41 NM_018905.3 ENSP00000431748 P1Q9Y5H9-1
PCDHA1ENST00000504120.4 linkuse as main transcriptc.2394+6700C>G intron_variant 1 NM_018900.4 ENSP00000420840 P1Q9Y5I3-1
ENST00000655235.1 linkuse as main transcriptn.658-6530G>C intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.00216
AC:
328
AN:
152128
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00641
Gnomad ASJ
AF:
0.00144
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00124
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.0190
Gnomad NFE
AF:
0.00266
Gnomad OTH
AF:
0.00526
GnomAD3 exomes
AF:
0.00220
AC:
554
AN:
251494
Hom.:
3
AF XY:
0.00238
AC XY:
324
AN XY:
135922
show subpopulations
Gnomad AFR exome
AF:
0.000554
Gnomad AMR exome
AF:
0.00402
Gnomad ASJ exome
AF:
0.00208
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00131
Gnomad FIN exome
AF:
0.0000924
Gnomad NFE exome
AF:
0.00270
Gnomad OTH exome
AF:
0.00586
GnomAD4 exome
AF:
0.00243
AC:
3550
AN:
1461894
Hom.:
11
Cov.:
34
AF XY:
0.00240
AC XY:
1748
AN XY:
727248
show subpopulations
Gnomad4 AFR exome
AF:
0.000448
Gnomad4 AMR exome
AF:
0.00407
Gnomad4 ASJ exome
AF:
0.00199
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.00152
Gnomad4 FIN exome
AF:
0.000168
Gnomad4 NFE exome
AF:
0.00262
Gnomad4 OTH exome
AF:
0.00275
GnomAD4 genome
AF:
0.00215
AC:
327
AN:
152246
Hom.:
1
Cov.:
33
AF XY:
0.00218
AC XY:
162
AN XY:
74434
show subpopulations
Gnomad4 AFR
AF:
0.000482
Gnomad4 AMR
AF:
0.00634
Gnomad4 ASJ
AF:
0.00144
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00124
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00266
Gnomad4 OTH
AF:
0.00520
Alfa
AF:
0.00195
Hom.:
0
Bravo
AF:
0.00244
TwinsUK
AF:
0.00243
AC:
9
ALSPAC
AF:
0.00208
AC:
8
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00209
AC:
18
ExAC
AF:
0.00199
AC:
242
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenDec 01, 2022PCDHA1: BS2; PCDHA2: BP4, BS2 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
5.2
DANN
Benign
0.77
DEOGEN2
Benign
0.021
.;.;T
Eigen
Benign
-0.96
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.019
N
LIST_S2
Benign
0.39
T;T;T
MetaRNN
Benign
0.0046
T;T;T
MetaSVM
Benign
-0.90
T
MutationAssessor
Uncertain
2.2
M;M;M
MutationTaster
Benign
1.0
N;N;N;N;N
PROVEAN
Benign
-0.42
N;N;N
REVEL
Benign
0.095
Sift
Uncertain
0.026
D;D;D
Sift4G
Uncertain
0.019
D;D;D
Polyphen
0.56
P;P;B
Vest4
0.28
MVP
0.46
ClinPred
0.0063
T
GERP RS
-2.8
Varity_R
0.11
gMVP
0.16

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: rs144974749; hg19: chr5-140174969; API