ula-1 Antibody

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Product Specs

Buffer
Preservative: 0.03% Proclin 300
Constituents: 50% Glycerol, 0.01M PBS, pH 7.4
Form
Liquid
Lead Time
Made-to-order (14-16 weeks)
Synonyms
ula-1 antibody; C26E6.8 antibody; NEDD8-activating enzyme E1 regulatory subunit antibody; Ubiquitin-like activation protein 1 antibody
Target Names
ula-1
Uniprot No.

Target Background

Function
The ula-1 antibody targets the regulatory subunit of the dimeric uba-3-ula-1 E1 enzyme. This enzyme plays a crucial role in the activation of NEDD8, a ubiquitin-like protein involved in various cellular processes. The E1 enzyme initiates the NEDD8 activation pathway by first adenylating the C-terminal glycine residue of NEDD8 using ATP. Subsequently, this activated NEDD8 is linked to the side chain of the catalytic cysteine residue of the uba-3 subunit, forming a NEDD8-rfl-1 (uba-3) thioester and releasing AMP. Finally, the E1 enzyme transfers NEDD8 to the catalytic cysteine of ubc-12, another enzyme involved in the NEDD8 pathway. The ula-1 antibody is essential for the nuclear localization of rfl-1 (uba-3) during early embryonic development.
Database Links

KEGG: cel:CELE_C26E6.8

STRING: 6239.C26E6.8.1

UniGene: Cel.17669

Protein Families
Ubiquitin-activating E1 family, ULA1 subfamily

Q&A

Here’s a curated collection of FAQs for researchers working with ULA-1 antibodies, structured to address both foundational and advanced scientific inquiries. The content integrates methodological guidance and data from peer-reviewed studies and technical guidelines.

Advanced Research Questions

How can I resolve contradictory ULA-1 localization data across studies?

Analytical framework:

FactorResolution Strategy
Antigen retrievalCompare methods (e.g., citrate vs. EDTA buffer ).
Fixation timeStandardize to ≤24 hrs to prevent epitope masking.
Antibody sourceCompare clones (e.g., 3C10.2 vs. polyclonal ).

What functional assays integrate ULA-1 antibody data with omics workflows?

Integration workflow:

  • Combine IHC/WB data with spatial transcriptomics to map ULA-1 expression to cellular subpopulations.

  • Use multiplex immunofluorescence (e.g., Opal™ TSA) to co-stain ULA-1 with lineage markers (e.g., MYHSA1 ).

  • Validate findings via CRISPR knockouts in cell lines to establish causality.

How do I address ULA-1 antibody cross-reactivity in multispecies models?

Mitigation strategies:

  • Perform phylogenetic alignment of ULA-1 epitopes across species.

  • Use pre-adsorption with heterologous protein lysates (e.g., mouse lysate for rat antibodies).

  • Validate via siRNA knockdown in cross-reactive species .

Technical Reference Table: Anti-ULA-1 Antibodies

Based on :

Product No.ClonalityApplicationSpecies ReactivityCitations
AB5905PolyclonalIHCRat582
MAB5502Monoclonal (3C10.2)IHC, WBMouse76
ABN1647PolyclonalIF, IHC, WB, Autorad.Human, Mouse, Rat7

Key Considerations for Data Interpretation

  • Effector function interference: ULA-1 antibodies with Fc regions (e.g., IgG1) may activate phagocytosis in certain assays; consider LALA mutations to reduce FcγR binding .

  • Temporal expression: Monitor ULA-1 dynamics via longitudinal sampling, as seen in retrotransposon-linked cancers .

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