5-141371145-G-A
Position:
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong
The ENST00000576222.2(PCDHGB3):c.751G>A(p.Val251Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000335 in 1,614,030 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.00022 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000014 ( 0 hom. )
Consequence
PCDHGB3
ENST00000576222.2 missense
ENST00000576222.2 missense
Scores
12
Clinical Significance
Conservation
PhyloP100: -0.999
Genes affected
PCDHGB3 (HGNC:8710): (protocadherin gamma subfamily B, 3) This gene is a member of the protocadherin gamma gene cluster, one of three related clusters tandemly linked on chromosome five. These gene clusters have an immunoglobulin-like organization, suggesting that a novel mechanism may be involved in their regulation and expression. The gamma gene cluster includes 22 genes divided into 3 subfamilies. Subfamily A contains 12 genes, subfamily B contains 7 genes and 2 pseudogenes, and the more distantly related subfamily C contains 3 genes. The tandem array of 22 large, variable region exons are followed by a constant region, containing 3 exons shared by all genes in the cluster. Each variable region exon encodes the extracellular region, which includes 6 cadherin ectodomains and a transmembrane region. The constant region exons encode the common cytoplasmic region. These neural cadherin-like cell adhesion proteins most likely play a critical role in the establishment and function of specific cell-cell connections in the brain. Alternative splicing has been described for the gamma cluster genes. [provided by RefSeq, Jul 2008]
PCDHGA1 (HGNC:8696): (protocadherin gamma subfamily A, 1) This gene is a member of the protocadherin gamma gene cluster, one of three related clusters tandemly linked on chromosome five. These gene clusters have an immunoglobulin-like organization, suggesting that a novel mechanism may be involved in their regulation and expression. The gamma gene cluster includes 22 genes divided into 3 subfamilies. Subfamily A contains 12 genes, subfamily B contains 7 genes and 2 pseudogenes, and the more distantly related subfamily C contains 3 genes. The tandem array of 22 large, variable region exons are followed by a constant region, containing 3 exons shared by all genes in the cluster. Each variable region exon encodes the extracellular region, which includes 6 cadherin ectodomains and a transmembrane region. The constant region exons encode the common cytoplasmic region. These neural cadherin-like cell adhesion proteins most likely play a critical role in the establishment and function of specific cell-cell connections in the brain. Alternative splicing has been described for the gamma cluster genes. [provided by RefSeq, Jul 2008]
PCDHGA2 (HGNC:8700): (protocadherin gamma subfamily A, 2) This gene is a member of the protocadherin gamma gene cluster, one of three related clusters tandemly linked on chromosome five. These gene clusters have an immunoglobulin-like organization, suggesting that a novel mechanism may be involved in their regulation and expression. The gamma gene cluster includes 22 genes divided into 3 subfamilies. Subfamily A contains 12 genes, subfamily B contains 7 genes and 2 pseudogenes, and the more distantly related subfamily C contains 3 genes. The tandem array of 22 large, variable region exons are followed by a constant region, containing 3 exons shared by all genes in the cluster. Each variable region exon encodes the extracellular region, which includes 6 cadherin ectodomains and a transmembrane region. The constant region exons encode the common cytoplasmic region. These neural cadherin-like cell adhesion proteins most likely play a critical role in the establishment and function of specific cell-cell connections in the brain. Alternative splicing has been described for the gamma cluster genes. [provided by RefSeq, Jul 2008]
PCDHGA3 (HGNC:8701): (protocadherin gamma subfamily A, 3) This gene is a member of the protocadherin gamma gene cluster, one of three related clusters tandemly linked on chromosome five. These gene clusters have an immunoglobulin-like organization, suggesting that a novel mechanism may be involved in their regulation and expression. The gamma gene cluster includes 22 genes divided into 3 subfamilies. Subfamily A contains 12 genes, subfamily B contains 7 genes and 2 pseudogenes, and the more distantly related subfamily C contains 3 genes. The tandem array of 22 large, variable region exons are followed by a constant region, containing 3 exons shared by all genes in the cluster. Each variable region exon encodes the extracellular region, which includes 6 cadherin ectodomains and a transmembrane region. The constant region exons encode the common cytoplasmic region. These neural cadherin-like cell adhesion proteins most likely play a critical role in the establishment and function of specific cell-cell connections in the brain. Alternative splicing has been described for the gamma cluster genes. [provided by RefSeq, Jul 2008]
PCDHGA4 (HGNC:8702): (protocadherin gamma subfamily A, 4) This gene is a member of the protocadherin gamma gene cluster, one of three related clusters tandemly linked on chromosome five. These gene clusters have an immunoglobulin-like organization, suggesting that a novel mechanism may be involved in their regulation and expression. The gamma gene cluster includes 22 genes divided into 3 subfamilies. Subfamily A contains 12 genes, subfamily B contains 7 genes and 2 pseudogenes, and the more distantly related subfamily C contains 3 genes. The tandem array of 22 large, variable region exons are followed by a constant region, containing 3 exons shared by all genes in the cluster. Each variable region exon encodes the extracellular region, which includes 6 cadherin ectodomains and a transmembrane region. The constant region exons encode the common cytoplasmic region. These neural cadherin-like cell adhesion proteins most likely play a critical role in the establishment and function of specific cell-cell connections in the brain. Alternative splicing has been described for the gamma cluster genes. [provided by RefSeq, Jul 2008]
PCDHGA5 (HGNC:8703): (protocadherin gamma subfamily A, 5) This gene is a member of the protocadherin gamma gene cluster, one of three related clusters tandemly linked on chromosome five. These gene clusters have an immunoglobulin-like organization, suggesting that a novel mechanism may be involved in their regulation and expression. The gamma gene cluster includes 22 genes divided into 3 subfamilies. Subfamily A contains 12 genes, subfamily B contains 7 genes and 2 pseudogenes, and the more distantly related subfamily C contains 3 genes. The tandem array of 22 large, variable region exons are followed by a constant region, containing 3 exons shared by all genes in the cluster. Each variable region exon encodes the extracellular region, which includes 6 cadherin ectodomains and a transmembrane region. The constant region exons encode the common cytoplasmic region. These neural cadherin-like cell adhesion proteins most likely play a critical role in the establishment and function of specific cell-cell connections in the brain. Alternative splicing has been described for the gamma cluster genes. [provided by RefSeq, Jul 2008]
PCDHGB1 (HGNC:8708): (protocadherin gamma subfamily B, 1) This gene is a member of the protocadherin gamma gene cluster, one of three related clusters tandemly linked on chromosome five. These gene clusters have an immunoglobulin-like organization, suggesting that a novel mechanism may be involved in their regulation and expression. The gamma gene cluster includes 22 genes divided into 3 subfamilies. Subfamily A contains 12 genes, subfamily B contains 7 genes and 2 pseudogenes, and the more distantly related subfamily C contains 3 genes. The tandem array of 22 large, variable region exons are followed by a constant region, containing 3 exons shared by all genes in the cluster. Each variable region exon encodes the extracellular region, which includes 6 cadherin ectodomains and a transmembrane region. The constant region exons encode the common cytoplasmic region. These neural cadherin-like cell adhesion proteins most likely play a critical role in the establishment and function of specific cell-cell connections in the brain. Alternative splicing has been described for the gamma cluster genes. [provided by RefSeq, Jul 2008]
PCDHGB2 (HGNC:8709): (protocadherin gamma subfamily B, 2) This gene is a member of the protocadherin gamma gene cluster, one of three related clusters tandemly linked on chromosome five. These gene clusters have an immunoglobulin-like organization, suggesting that a novel mechanism may be involved in their regulation and expression. The gamma gene cluster includes 22 genes divided into 3 subfamilies. Subfamily A contains 12 genes, subfamily B contains 7 genes and 2 pseudogenes, and the more distantly related subfamily C contains 3 genes. The tandem array of 22 large, variable region exons are followed by a constant region, containing 3 exons shared by all genes in the cluster. Each variable region exon encodes the extracellular region, which includes 6 cadherin ectodomains and a transmembrane region. The constant region exons encode the common cytoplasmic region. These neural cadherin-like cell adhesion proteins most likely play a critical role in the establishment and function of specific cell-cell connections in the brain. Alternative splicing has been described for the gamma cluster genes. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -2 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.015161842).
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| PCDHGB3 | NM_018924.5 | c.751G>A | p.Val251Ile | missense_variant | 1/4 | ENST00000576222.2 | NP_061747.2 | |
| PCDHGA1 | NM_018912.3 | c.2421+38040G>A | intron_variant | ENST00000517417.3 | NP_061735.1 | |||
| PCDHGA2 | NM_018915.4 | c.2424+29750G>A | intron_variant | ENST00000394576.3 | NP_061738.1 | |||
| PCDHGA3 | NM_018916.4 | c.2424+24688G>A | intron_variant | ENST00000253812.8 | NP_061739.2 | |||
| PCDHGA4 | NM_018917.4 | c.2514+13524G>A | intron_variant | ENST00000571252.3 | NP_061740.2 | |||
| PCDHGA5 | NM_018918.3 | c.2421+4394G>A | intron_variant | ENST00000518069.2 | NP_061741.1 | |||
| PCDHGB1 | NM_018922.3 | c.2409+18476G>A | intron_variant | ENST00000523390.2 | NP_061745.1 | |||
| PCDHGB2 | NM_018923.3 | c.2421+8589G>A | intron_variant | ENST00000522605.2 | NP_061746.1 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| PCDHGB3 | ENST00000576222.2 | c.751G>A | p.Val251Ile | missense_variant | 1/4 | 1 | NM_018924.5 | ENSP00000461862 | P1 | |
| PCDHGA3 | ENST00000253812.8 | c.2424+24688G>A | intron_variant | 1 | NM_018916.4 | ENSP00000253812 | P1 | |||
| PCDHGA2 | ENST00000394576.3 | c.2424+29750G>A | intron_variant | 1 | NM_018915.4 | ENSP00000378077 | P1 | |||
| PCDHGA1 | ENST00000517417.3 | c.2421+38040G>A | intron_variant | 1 | NM_018912.3 | ENSP00000431083 | P1 | |||
| PCDHGA5 | ENST00000518069.2 | c.2421+4394G>A | intron_variant | 1 | NM_018918.3 | ENSP00000429834 | P1 | |||
| PCDHGB2 | ENST00000522605.2 | c.2421+8589G>A | intron_variant | 1 | NM_018923.3 | ENSP00000429018 | P1 | |||
| PCDHGB1 | ENST00000523390.2 | c.2409+18476G>A | intron_variant | 1 | NM_018922.3 | ENSP00000429273 | P1 | |||
| PCDHGA4 | ENST00000571252.3 | c.2514+13524G>A | intron_variant | 1 | NM_018917.4 | ENSP00000458570 | P1 |
Frequencies
GnomAD3 genomes 0.000217 AC: 33AN: 152248Hom.: 0 Cov.: 33
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GnomAD3 exomes AF: 0.0000562 AC: 14AN: 249238Hom.: 0 AF XY: 0.0000518 AC XY: 7AN XY: 135224
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GnomAD4 exome AF: 0.0000144 AC: 21AN: 1461664Hom.: 0 Cov.: 33 AF XY: 0.0000110 AC XY: 8AN XY: 727106
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GnomAD4 genome 0.000217 AC: 33AN: 152366Hom.: 0 Cov.: 33 AF XY: 0.000322 AC XY: 24AN XY: 74510
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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 submitter | clinical testing | Ambry Genetics | Jun 17, 2024 | The c.751G>A (p.V251I) alteration is located in exon 1 (coding exon 1) of the PCDHGB3 gene. This alteration results from a G to A substitution at nucleotide position 751, causing the valine (V) at amino acid position 251 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
DEOGEN2
Benign
T;.
FATHMM_MKL
Benign
N
LIST_S2
Benign
T;T
M_CAP
Benign
T
MetaRNN
Benign
T;T
MutationAssessor
Benign
N;N
MutationTaster
Benign
D;D;D;D;D;D;D;N
Sift4G
Benign
T;T
Polyphen
B;B
Vest4
MVP
MPC
GERP RS
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at