Anti-Cullin 1/Cul1 Antibody Picoband®

Overview

Anti-Cullin 1/Cul1 Antibody Picoband® is an antibody targeting Cul1. Common applications include WB, IHC, Flow Cytometry, ELISA. Key specifications include host: Rabbit; clonality: Polyclonal; isotype: Rabbit IgG; reactivity: Human,Mouse,Rat; observed MW: 90 kDa; calculated MW: 89679 MW.

Boster Bio Anti-Cullin 1/Cul1 Antibody catalog # PA1557. Tested in IHC, WB applications. This antibody reacts with Human, Mouse, Rat. The brand Picoband indicates this is a premium antibody that guarantees superior quality, high affinity, and strong signals with minimal background in Western blot applications. Only our best-performing antibodies are designated as Picoband, ensuring unmatched performance.

Key elements and design rationale

• Target: Cul1 — Cullin-1
• Antibody format: Host: Rabbit; Clonality: Polyclonal; Isotype: Rabbit IgG
• Species reactivity: Human,Mouse,Rat
• Molecular weight guidance: Observed: 90 kDa; Calculated: 89679 MW

Specificity note: No cross reactivity with other proteins.

Biological background

Protein function (datasheet): Core component of multiple cullin-RING-based SCF (SKP1- CUL1-F-box protein) E3 ubiquitin-protein ligase complexes, which mediate the ubiquitination of proteins involved in cell cycle progression, signal transduction and transcription. In the SCF complex, serves as a rigid scaffold that organizes the SKP1-F-box protein and RBX1 subunits. May contribute to catalysis through positioning of the substrate and the ubiquitin-conjugating enzyme. The E3 ubiquitin-protein ligase activity of the complex is dependent on the neddylation of the cullin subunit and exchange of the substrate recognition component is mediated by TIP120A/CAND1. The functional specificity of the SCF complex depends on the F-box protein as substrate recognition component. SCF (BTRC) and SCF (FBXW11) ubiquitination of CTNNB1 and participate in Wnt signaling. SCF (FBXW11) s ubiquitination of phosphorylated NFKBIA. SCF (BTRC) s ubiquitination of NFKBIB, NFKBIE, ATF4, SMAD3, SMAD4, CDC25A, FBXO5 and probably NFKB2. SCF (SKP2) s ubiquitination of phosphorylated CDKN1B/p27kip and is involved in regulation of G1/S transition. SCF (SKP2) s ubiquitination of ORC1, CDT1, RBL2, ELF4, CDKN1A, RAG2, FOXO1A, and probably MYC and TAL1. SCF (FBXW7) s ubiquitination of cyclin E, NOTCH1 released notch intracellular domain (NICD), and probably PSEN1. SCF (FBXW2) s ubiquitination of GCM1. SCF (FBXO32) s ubiquitination of MYOD1. SCF (FBXO7) s ubiquitination of BIRC2 and DLGAP5. SCF (FBXO33) s ubiquitination of YBX1. SCF (FBXO1) s ubiquitination of BCL6 and DTL but does not seem to ubiquitination of TP53. SCF (BTRC) mediates the ubiquitination of NFKBIA at 'Lys-21' and 'Lys-22'; the degradation frees the associated NFKB1-RELA dimer to translocate into the nucleus and to activate transcription. SCF (CCNF) s ubiquitination of CCP110. SCF (FBXL3) and SCF (FBXL21) ubiquitination of CRY1 and CRY2. SCF (FBXO9) ubiquitination of TTI1 and TELO2. SCF (FBXO10) s ubiquitination of BCL2. .

Scientific background (datasheet): Cullin 1, also known as CUL1, is a human protein and gene from cullin family. This protein plays an important role in protein degradation and protein ubiquitination. This is an essential component of the SCF (SKP1-CUL1-F-box protein) E3 ubiquitin ligase complex, which mediates the ubiquitination of proteins involved in cell cycle progression, signal transduction and transcription. Human cullin 1, but not the other closely related cullins 2, 3, 4A, and 5, selectively interacts with human SKP1.

Cellular localization (datasheet): Cytoplasm.

Tissue details (datasheet): Expressed in lung fibroblasts. .

Sequence similarities (datasheet): Contains 1 bHLH (basic helix-loop-helix) domain.

Research relevance and current trends

• Commonly studied in contexts related to Cell Cycle Inhibitors,Cell Death,Nucleus,Proteasome / Ubiquitin,Proteolysis/Ubiquitin,SCF Complex E3 Ligase,Ubiquitin E3 Enzymes.
• Supports comparative expression analysis across conditions, genotypes, or treatments when paired with appropriate controls.
• Useful for confirming target presence and subcellular distribution using orthogonal readouts (e.g., microscopy vs. immunoblotting).

Common research applications

• Western blot (WB): Compare relative target abundance and apparent size/isoforms across samples; interpret bands in light of expected MW and potential PTMs.
• ELISA: Measure target abundance in compatible matrices using a standard-curve readout; ensure dilution linearity and appropriate controls.
• Immunohistochemistry (IHC): Assess tissue distribution and cell-type patterns; interpret staining with appropriate negative controls and antigen context.
• Flow cytometry: Quantify target-positive populations in single-cell suspensions; pair with viability and isotype/FMO controls conceptually.

Notes for experimental interpretation

• Consider isoforms, post-translational modifications, and processing that can shift apparent molecular weight or localization.
• Cross-reactivity (datasheet): No cross-reactivity with other proteins
• Use appropriate positive and negative controls (e.g., KO/KD, blocking peptide, or isotype controls) to support specificity interpretation.

As a polyclonal antibody, this reagent may recognize multiple epitopes on the target, which can improve detection robustness but may require careful specificity controls.

Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.