PER20 Antibody

Potential Nomenclature Considerations

The term "PER20" could represent a typographical error or misinterpretation of established antibody nomenclature. Two plausible candidates emerge from the search results:

PER2 Antibodies

PER2 (Period circadian protein homolog 2) is a circadian rhythm regulator studied in chronobiology. A polyclonal antibody targeting PER2 (PA5-100107) is commercially available, with applications in Western blotting and immunofluorescence .

PY20 Antibodies

PY20 is a well-characterized monoclonal antibody targeting phosphotyrosine residues, widely used in signaling pathway studies .

PER2 Antibody Insights

• Function: PER2 regulates circadian oscillations and interacts with core clock proteins like CRY1/2 and CLOCK .

• Pathological Relevance: Mutations in PER2 are linked to familial advanced sleep-phase syndrome (FASPS) .

• Experimental Use: Used to study circadian disruption in metabolic diseases and cancer .

PY20 Antibody Insights

• Mechanism: Binds phosphorylated tyrosine residues on activated receptors (e.g., EGFR) and signaling proteins .

• Applications:

  • Detects tyrosine kinase activation in oncogenesis .

  • Inhibits receptor internalization when microinjected into cells .

• Technical Data:

  • Affinity: ~10⁻⁶ to 10⁻⁷ M for phosphotyrosine .

  • Specificity: Inhibited by free phosphotyrosine but not phosphoserine/threonine .

Comparative Analysis of Antibody Classes

Recommendations for Further Investigation

1. Terminology Verification: Confirm whether "PER20" refers to a novel antibody not yet cataloged or a typographical error.

2. Exploratory Targets:

   • Screen databases for antibodies targeting PER1 or PER3, homologs of PER2 in circadian regulation.

   • Investigate antibodies against Pertactin (Prn), a bacterial adhesin studied in Bordetella research .

3. Validation Protocols: If developing a novel PER20 antibody, utilize phage display libraries or single-chain variable fragment (scFv) platforms for epitope characterization.