PCLO

protein-coding

piccolo presynaptic cytomatrix protein, the group of Zinc fingers PCLO-type|PDZ domain containing|C2 domain containing

Gene summary

The protein encoded by this gene is part of the presynaptic cytoskeletal matrix, which is involved in establishing active synaptic zones and in synaptic vesicle trafficking. Variations in this gene have been associated with bipolar disorder and major depressive disorder. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2011]

MANE transcript

NM_033026.6

Inheritance

AR

ClinVar variants

P:78U:1864B:1124

Top phenotype

Pontocerebellar hypoplasia, type 3

gnomAD constraint

pLI —, LoF o/e 0.08

Max pathogenic AF

—

Genomic locus

chr7:82,754,012-83,162,930

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~408.9 kb
Loading mutation effect viewer...

GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

pontocerebellar hypoplasia type 3SUPPORTIVE

Inheritance Pattern: AR

Disease ID:MONDO:0011948

Submitter: Orphanet

pontocerebellar hypoplasia type 3MODERATE

Inheritance Pattern: AR

Disease ID:MONDO:0011948

Submitter: PanelApp Australia

pontocerebellar hypoplasia type 3STRONG

Inheritance Pattern: AR

Disease ID:MONDO:0011948

Submitter: Labcorp Genetics (formerly Invitae)

pontocerebellar hypoplasia type 3MODERATE

Inheritance Pattern: AR

Disease ID:MONDO:0011948

Submitter: Ambry Genetics

Clinical Genomic Database (CGD)

Pontocerebellar hypoplasia, type 3AR

Manifestation: Craniofacial; Musculoskeletal; Neurologic

Intervention: General

Rationale: Genetic knowledge may be beneficial related to issues such as selection of optimal supportive care, informed medical decision-making, prognostic considerations, and avoidance of unnecessary testing

Refs: 25832664Source: CGD (NHGRI)

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to PCLO variants in ClinVar

7 Conditions Cataloged
not providedTotal: 2944
Inborn genetic diseasesTotal: 717
not specifiedTotal: 152
PCLO-related disorderTotal: 106
Pontocerebellar hypoplasia type 3Total: 72
EBV-positive nodal T- and NK-cell lymphomaTotal: 1
MicrocephalyTotal: 1

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_033026.6. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
10
clinvar
981
clinvar
17
clinvar
1008
missense
1831
clinvar
104
clinvar
22
clinvar
1957
nonsense
37
clinvar
3
clinvar
7
clinvar
47
start loss
0
frameshift
29
clinvar
5
clinvar
13
clinvar
47
splice donor/acceptor (+/-2bp)
4
clinvar
3
clinvar
7
Total661218641085393066

Highest pathogenic variant AF is 0.0000065731524

Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 15 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_033026.6RefSeqNP_149015.225MANE Select
ENST00000333891.14EnsemblENSP00000334319.825MANE Select
NM_014510.3RefSeqNP_055325.220Standard
ENST00000413807.6EnsemblENSP00000404191.22Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Insulin secretion - Homo sapiens (human)

Biological Process

  • cytoskeleton organization
  • synapse assembly
  • synaptic vesicle exocytosis
  • regulation of exocytosis
  • cAMP-mediated signaling

Molecular Function

  • calcium ion binding
  • profilin binding
  • calcium-dependent phospholipid binding
  • structural constituent of presynaptic active zone

Cellular Component

  • cytoskeleton
  • postsynaptic density
  • cell junction
  • synapse
  • cytoskeleton of presynaptic active zone

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000333891
Coding exons
25
Length
408918
Individuals with no LoFs
124611
Homozygous LoFs
0
Heterozygous LoFs
40
Defined
124651
p
0.000160
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense-1.4627522.54e+31.080.00013133180
Missense (PolyPhen)69.16280.65482105
Synonymous-3.9310849321.160.000048310421
Loss of Function11.6151860.08090.00001052428

Population LoF Frequency

PopulationCAFp-valueStatus
African0.00120.00065notable
Latino/Admixed American0.000170.000087rare
Ashkenazi Jewish00.0absent
East Asian0.0000560.000056rare
Finnish0.000140.00014rare
European (Non-Finnish)0.000160.00015rare
South Asian0.000210.00016rare
Other0.000170.00017rare

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: May act as a scaffolding protein involved in the organization of synaptic active zones and in synaptic vesicle trafficking. {ECO:0000250|UniProtKB:Q9QYX7}.;
Disease
DISEASE: Pontocerebellar hypoplasia 3 (PCH3) [MIM:608027]: A form of pontocerebellar hypoplasia, a disorder characterized by structural defects of the pons and cerebellum. Brain MRI shows an abnormally small cerebellum and brainstem, decreased cerebral white matter, and a thin corpus callosum. PCH3 features include seizures, short stature, optic atrophy, progressive microcephaly, severe developmental delay. {ECO:0000269|PubMed:25832664}. Note=The disease is caused by mutations affecting the gene represented in this entry.;

Recessive Scores

pRec
0.0851

Intolerance Scores

RVIS EVS
-0.18
RVIS percentile EVS
40.57

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N
Indispensability pred.
E
Indispensability score
0.687

Gene Damage Prediction

AllRecessiveDominant
MendelianHighHighHigh
Primary ImmunodeficiencyHighHighHigh
CancerHighHighHigh
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