EUG1 Antibody

Shipped with Ice Packs
In Stock

Description

Analysis of Terminology and Potential Interpretations

The designation "EUG1" does not align with established antibody nomenclature systems such as:

  • WHO's International Nonproprietary Names (INN) for therapeutic antibodies

  • Ig subclass labeling (e.g., IgG1, IgG2a)

  • Target-antigen pairing conventions (e.g., anti-CD20, anti-VEGF)

Closest Matches in Current Research

The search results highlight significant work on IgG1 antibodies, which may represent the intended subject:

Table 1: Key IgG1 Antibody Features from Reviewed Literature

PropertyDescriptionSource(s)
StructureY-shaped glycoprotein with two Fab regions (antigen-binding) and one Fc region (effector function)
FunctionNeutralizes pathogens, activates complement, mediates phagocytosis
Thermal StabilityCH3 domain unfolding enthalpy = 120-140 kcal/mol
Therapeutic Use63% of FDA-approved monoclonal antibodies are IgG1 subclass

Recent IgG1 Antibody Developments

The provided sources detail two novel IgG1-based therapies:

TRBV5-1-Targeting Antibody for T-Cell Neoplasms

  • Target: V segment of T-cell receptor β-chain

  • Affinity: KD = 2.3 nM (SPR analysis)

  • Specificity: 98% tumor cell binding vs <0.1% off-target reactivity

Anti-VISTA Antibody CI-8993

  • Cross-reactivity: Binds human/murine/cynomolgus VISTA

  • Status: Phase I trials for solid tumors

Methodological Considerations in Antibody Research

Recent studies emphasize:

  • Phage display screening for high-affinity binders

  • Fc engineering to modulate half-life and effector functions

  • Analytical challenges in stability profiling of IgG1 molecules

Recommended Verification Steps

  1. Confirm spelling/nomenclature with originating source

  2. Cross-reference against INN Draft List Q4 2024 (WHO, pending publication)

  3. Search proprietary drug databases (e.g., Pharmaprojects, Cortellis)

The absence of "EUG1 Antibody" in peer-reviewed literature and regulatory filings suggests either:

  • A developmental code name for unpublished research

  • Potential confusion with established IgG1 antibody subclasses

  • Typographical error in target designation

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
EUG1 antibody; YDR518W antibody; D9719.23Protein disulfide-isomerase EUG1 antibody; PDI antibody; EC 5.3.4.1 antibody; Endoplasmic reticulum protein EUG1 antibody
Target Names
EUG1
Uniprot No.

Target Background

Function
EUG1 Antibody is believed to interact with nascent polypeptides within the endoplasmic reticulum. It is considered an essential gene, particularly in the absence of protein disulfide isomerase (PDI). The antibody exhibits very low native disulfide isomerase activity.
Database Links

KEGG: sce:YDR518W

STRING: 4932.YDR518W

Protein Families
Protein disulfide isomerase family
Subcellular Location
Endoplasmic reticulum lumen.

Q&A

What are the essential validation steps required before using EUG1 Antibody in research experiments?

Antibody characterization is critical for ensuring experimental reproducibility. Based on the "five pillars" of antibody characterization developed by the International Working Group for Antibody Validation, researchers should implement multiple validation strategies :

  • Genetic strategies: Use knockout/knockdown approaches to confirm specificity

  • Orthogonal strategies: Compare results between antibody-dependent and antibody-independent methods

  • Independent antibody strategies: Use multiple antibodies targeting different epitopes of the same protein

  • Recombinant strategies: Test with overexpressed target protein

  • Capture MS strategies: Verify binding targets through mass spectrometry

For EUG1 Antibody specifically, Western blot, immunohistochemistry (IHC), immunofluorescence (IF), and ELISA validation across multiple experimental conditions is recommended to establish reliable performance characteristics.

How can specificity of EUG1 Antibody be conclusively demonstrated?

The gold standard for demonstrating antibody specificity involves genetic strategies using knockout cell lines . For EUG1 Antibody:

  • Compare staining patterns between wildtype and knockout models

  • Perform competitive binding assays with purified antigen

  • Evaluate cross-reactivity with structurally similar proteins

  • Use flow cytometry to confirm selective binding to target-expressing cells

  • Conduct immunoprecipitation followed by mass spectrometry to identify all bound proteins

Research has demonstrated that recombinant monoclonal antibodies typically exhibit superior specificity compared to polyclonal alternatives , making them preferable for critical research applications.

What methods should be employed to determine the optimal working concentration of EUG1 Antibody?

Determining optimal antibody concentration requires systematic titration across application types:

ApplicationRecommended Titration RangeOptimization Approach
Western Blot0.1-10 μg/mLSerial dilutions with consistent protein loading
IHC/IF1-20 μg/mLTitration series using positive control tissues
ELISA0.05-5 μg/mLCheckerboard titration against known concentrations of target
Flow Cytometry0.5-10 μg/mLTitration with signal-to-noise ratio analysis

The optimal concentration should provide maximum specific signal with minimal background. Surface plasmon resonance (SPR) studies can confirm antibody affinity in the nanomolar range, which is typically desirable for research applications .

What are the recommended protocols for using EUG1 Antibody in flow cytometry applications?

Flow cytometry protocols for EUG1 Antibody should follow these methodological steps:

  • Sample preparation: Use single-cell suspensions of 1×10^6 cells/100μL

  • Blocking: Incubate cells with 2% BSA or 10% serum from the same species as secondary antibody

  • Primary antibody incubation: Apply EUG1 Antibody at pre-optimized concentration for 30-60 minutes at 4°C

  • Washing: Perform 3 washes with PBS containing 0.1% BSA

  • Secondary detection: If needed, apply fluorochrome-conjugated secondary antibody

  • Controls: Include isotype controls, FMO (fluorescence minus one) controls, and unstained samples

Research shows that directly conjugated antibodies can provide selective binding to target cells without cross-reactivity to other cell components, as demonstrated in studies with TCR-specific antibodies . For optimal results, titration experiments should determine the concentration that provides maximum signal separation between positive and negative populations.

How can EUG1 Antibody be effectively conjugated with fluorochromes or other detection molecules?

Conjugation of EUG1 Antibody with detection molecules requires careful consideration of the following factors:

  • Select appropriate conjugation chemistry based on available reactive groups (typically primary amines or sulfhydryls)

  • Maintain optimal antibody-to-dye ratio (typically 2-8 fluorophores per antibody)

  • Purify conjugated antibody to remove free dye

  • Validate conjugate performance against unconjugated antibody

Research has shown that antibodies conjugated with fluorochromes can selectively bind to target cells expressing specific proteins, as demonstrated in flow cytometry analysis of patient samples using antibodies targeting T-cell receptors . The conjugation process should preserve antibody affinity while providing sufficient signal intensity for the intended application.

What strategies should be employed to identify EUG1 Antibody epitopes for structural biology studies?

Epitope mapping requires a multi-method approach:

  • Peptide array analysis: Screen overlapping peptides spanning the target protein sequence

  • Hydrogen/deuterium exchange mass spectrometry (HDX-MS): Identify regions protected from exchange upon antibody binding

  • X-ray crystallography or cryo-EM: Determine the three-dimensional structure of the antibody-antigen complex

  • Computational docking: Use molecular modeling to predict binding interactions

  • Mutagenesis studies: Systematically alter potential binding residues to identify critical interaction points

When identifying antigenic peptides for antibody development, researchers have successfully used 3D modeling and docking techniques with MHC molecules to identify accessible regions . Table 2 demonstrates how potential antigenic peptides can be characterized:

PeptideSequenceLengthTM scoreAb-score
Example 1TQTPRYLIKTRGQQ142.55.8
Example 2GRFSGRQFS92.55.8
Example 3TLELGDSA83.45.4

TM scores and Ab-scores (as calculated by tools like Antigen Profiler Peptide and AbDesigner) provide quantitative measures of peptide suitability for antibody development .

How can researchers develop EUG1 recombinant antibody variants with enhanced specificity or functionality?

Development of recombinant antibody variants involves several strategic approaches:

  • Phage display screening: Identify high-affinity single-chain variable fragments (scFv) against the target epitope

  • Affinity maturation: Introduce targeted mutations in complementarity-determining regions (CDRs)

  • Isotype switching: Convert between antibody classes (e.g., IgG to IgE) for different functional properties

  • Fc engineering: Modify the Fc region to enhance or alter effector functions

  • Bispecific antibody generation: Combine binding domains from two different antibodies

Research has demonstrated that human single-chain variable fragments with high affinity and specificity for target antigens can be identified through phage display and subsequently converted to full IgG1 monoclonal antibodies . Surface plasmon resonance (SPR) studies can confirm binding affinity in the nanomolar range, which is essential for therapeutic applications .

What approaches can resolve discrepancies in EUG1 Antibody binding data across different experimental platforms?

When facing inconsistent results across platforms, implement the following troubleshooting strategy:

  • Antibody characterization: Re-validate antibody using orthogonal methods

  • Sample preparation: Standardize protocols for cell/tissue lysis, fixation, and antigen retrieval

  • Buffer optimization: Test multiple buffer conditions to identify potential interfering factors

  • Technical replicates: Perform sufficient replicates to establish statistical confidence

  • Positive controls: Include known target-expressing samples in each experiment

  • Independent antibody validation: Use multiple antibodies targeting different epitopes

Studies have shown that antibody performance can vary significantly between applications (e.g., Western blot vs. IHC), necessitating application-specific validation . The "five pillars" approach provides a framework for comprehensive validation across different experimental contexts.

How can EUG1 Antibody be utilized in single-cell analysis techniques?

Single-cell applications of EUG1 Antibody require special considerations:

  • Cell isolation: Use gentle dissociation methods to preserve target epitopes

  • Antibody concentration: Optimize for minimal background with maximal specific signal

  • Multiplexing: Carefully select compatible fluorophores when combining with other antibodies

  • Fixation: Determine if target epitopes are sensitive to specific fixation methods

  • Data analysis: Apply appropriate gating strategies and clustering algorithms

Research has demonstrated that individual B cells can be isolated through fluorescence-activated cell sorting based on surface marker expression, followed by amplification of immunoglobulin genes to produce monoclonal antibodies with the same specificity in vitro . This approach allows for comprehensive analysis of the antibody repertoire at the single-cell level, linking reactivity profiles directly to sequence information.

What strategies can optimize EUG1 Antibody performance in complex biological matrices?

When working with complex samples like serum, tissue homogenates, or cell lysates:

  • Pre-clearing: Remove interfering substances through pre-adsorption with irrelevant antibodies

  • Blockers: Use appropriate blocking agents (e.g., BSA, milk proteins, normal serum)

  • Additives: Include detergents, salts, or protease inhibitors to reduce non-specific interactions

  • Sample dilution: Perform serial dilutions to identify potential interference

  • Spike-in controls: Add known quantities of target protein to assess recovery

Studies with allergen-specific human monoclonal antibodies have demonstrated that careful optimization enables detection of specific targets even in complex biological samples, with sensitivity below 1 kU/L . Sigmoidal binding curves through ELISA can confirm specific binding across a range of analyte concentrations.

How should researchers properly quantify and normalize EUG1 Antibody binding data?

Proper quantification and normalization involves these methodological steps:

  • Standard curves: Generate curves using purified target protein

  • Housekeeping controls: Normalize to appropriate loading controls for Western blots

  • Replicate analysis: Perform at least three independent experiments

  • Statistical testing: Apply appropriate statistical tests based on data distribution

  • Dynamic range determination: Establish the linear range of detection

For absolute quantification, researchers can use surface plasmon resonance to determine binding kinetics (kon and koff rates) and equilibrium dissociation constants (KD) in the nanomolar range . This provides a robust measure of antibody affinity that can be compared across different experimental conditions or antibody variants.

What bioinformatic approaches can identify potential cross-reactivity of EUG1 Antibody with off-target proteins?

Computational prediction of cross-reactivity involves:

  • Sequence homology analysis: Compare target epitope sequence with proteome databases

  • Structural modeling: Evaluate 3D structural similarity between target and potential cross-reactants

  • Epitope conservation analysis: Assess evolutionary conservation of binding sites

  • Molecular docking: Simulate antibody binding to potential cross-reactive proteins

  • Statistical scoring: Apply machine learning algorithms to predict binding likelihood

Research on T-cell receptor targeting has demonstrated that bioinformatic tools can successfully identify antigenic peptides with favorable properties for antibody development . Critical amino acids within potential cross-reactive sequences should be evaluated for their contribution to antibody binding.

Quick Inquiry

Personal Email Detected
Please use an institutional or corporate email address for inquiries. Personal email accounts ( such as Gmail, Yahoo, and Outlook) are not accepted. *
© Copyright 2025 TheBiotek. All Rights Reserved.