MBIP Human

MAP3K12 Binding Inhibitory Protein 1 Human Recombinant
Shipped with Ice Packs
In Stock

Description

Biological Functions

MBIP regulates two critical pathways:

  1. JNK/SAPK Pathway Activation: By inhibiting MAP3K12, MBIP promotes JNK phosphorylation, leading to downstream activation of transcription factors like c-Jun .

  2. Chromatin Modification: As part of the ATAC complex, MBIP facilitates histone H3/H4 acetylation, influencing gene expression .

Research Findings in Non-Small Cell Lung Cancer (NSCLC)

MBIP drives NSCLC metastasis through JNK/MMP signaling ( ):

Study TypeKey Observations
In Vitro- ↑ Cell proliferation, migration, and invasion in NSCLC lines (393P, H157) .
- JNK inhibitor (SP600125) reverses MBIP-induced invasiveness .
In Vivo- MBIP overexpression increases lung metastasis in mouse models .
- Tumors show elevated p-JNK, p-c-Jun, and MMP7 levels .

Mechanism of Action in NSCLC

The MBIP/JNK/MMP axis promotes metastasis through:

ComponentRole
JNK PhosphorylationActivates c-Jun, increasing transcription of pro-metastatic genes .
MMP UpregulationMBIP induces MMP7, MMP9, and MMP13, enhancing ECM degradation .
In Vivo CorrelationPositive association between MBIP levels and p-JNK/MMP7 in tumors .

Applications in Research

  • Tool for JNK Pathway Studies: Used to investigate MAP3K12 inhibition and JNK activation mechanisms .

  • Cancer Metastasis Models: MBIP-expressing NSCLC cell lines enable preclinical testing of JNK/MMP inhibitors .

  • Chromatin Dynamics: ATAC complex studies leverage MBIP’s role in histone acetylation .

Product Specs

Introduction
MBIP (MAP3K12 Binding Inhibitory Protein 1) is a component of the ATAC complex, which comprises histones H3 and H4 and exhibits histone acetyltransferase activity. By inhibiting MAP3K12 activity, MBIP triggers the activation of the JNK/SAPK signaling pathway.
Description
Recombinant human MBIP, expressed in E. coli, is a single polypeptide chain consisting of 367 amino acids (residues 1-344) with a molecular weight of 41.7 kDa. The protein includes a 23-amino acid His-tag fused at the N-terminus and is purified using proprietary chromatographic techniques.
Physical Appearance
A clear, sterile-filtered solution.
Formulation
The MBIP solution is provided at a concentration of 1 mg/ml in a buffer consisting of 20 mM Tris-HCl (pH 8.0), 10% glycerol, and 0.4 M urea.
Stability
For short-term storage (2-4 weeks), the product can be stored at 4°C. For extended storage, it is recommended to freeze the product at -20°C. The addition of a carrier protein (0.1% HSA or BSA) is advisable for long-term storage. Repeated freezing and thawing should be avoided.
Purity
The purity of the protein is greater than 85%, as determined by SDS-PAGE analysis.
Synonyms
MAP3K12 binding inhibitory protein 1, MAPK upstream kinase-binding inhibitory protein, MUK-binding inhibitory protein, MBIP.
Source
Escherichia Coli.
Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MGSMAAATEL NRPSSGDRNL ERRCRPNLSR EVLYEIFRSL HTLVGQLDLR DDVVKITIDW NKLQSLSAFQ PALLFSALEQ HILYLQPFLA KLQSPIKEEN TTAVEEIGRT EMGNKNEVND KFSIGDLQEE EKHKESDLRD VKKTQIHFDP EVVQIKAGKA EIDRRISAFI ERKQAEINEN NVREFCNVID CNQENSCART DAIFTPYPGF KSHVKVSRVV NTYGPQTRPE GIPGSGHKPN SMLRDCGNQA VEERLQNIEA HLRLQTGGPV PRDIYQRIKK LEDKILELEG ISPEYFQSVS FSGKRRKVQP PQQNYSLAEL DEKISALKQA LLRKSREAES MATHHLP.

Q&A

What is MBIP and what are its primary functions in human cells?

MBIP (MAP3K12 Binding Inhibitory Protein 1) is a protein-coding gene that serves several key functions in human cellular biology. It primarily inhibits MAP3K12 activity, which is involved in the activation of the JNK/SAPK pathway . Additionally, MBIP functions as a component of the ATAC complex, which possesses histone acetyltransferase activity specifically targeting histones H3 and H4 .

The protein enables identical protein binding activity and protein kinase inhibitor activity. It participates in multiple cellular processes including histone H3 acetylation, positive regulation of the JNK cascade, and positive regulation of gene expression . Within the cell, MBIP is localized to multiple compartments including the cytosol, nucleolus, and nucleoplasm, suggesting diverse functional roles depending on cellular context .

How is MBIP identified in genomic databases?

Researchers working with MBIP should reference the following standard identifiers across major genomic databases:

DatabaseIdentifier
HGNC20427
NCBI Gene51562
EnsemblENSG00000151332
OMIM609431
UniProtKB/Swiss-ProtQ9NS73

Previous GeneCards identifiers include GC14M034147, GC14M030625, GC14M034757, GC14M035837, GC14M036767, and GC14M016882, reflecting updates to genomic coordinates over time .

What paralogs and related genes are important when studying MBIP?

When conducting MBIP research, it's essential to consider its relationship with paralogs and functionally related genes. According to the available data, MOCS2 is an important paralog of MBIP . Understanding the evolutionary relationships and functional similarities between these genes can provide valuable context for experimental design and data interpretation.

How does MBIP regulate the JNK/SAPK pathway at the molecular level?

MBIP functions as an inhibitor of MAP3K12 activity to regulate the JNK/SAPK pathway . The c-Jun N-terminal kinase/stress-activated protein kinase (JNK/SAPK) pathway is a critical signaling cascade involved in cellular stress responses, apoptosis, and inflammation.

For experimental investigation of this regulatory mechanism, researchers should consider:

  • Protein-protein interaction studies using co-immunoprecipitation or proximity ligation assays to characterize the MBIP-MAP3K12 binding interface

  • Kinase activity assays measuring MAP3K12 activity in the presence of varying MBIP concentrations

  • Phosphorylation analysis of downstream JNK targets under conditions of MBIP overexpression or knockdown

  • Structural studies to determine the specific binding domains involved in the interaction

These methodological approaches should follow sound experimental design principles, including appropriate controls, replication, and statistical analysis .

What is MBIP's role in chromatin regulation through the ATAC complex?

MBIP serves as a component of the ATAC complex, which has histone acetyltransferase activity specifically targeting histones H3 and H4 . This positions MBIP as a potential regulator of chromatin structure and gene expression.

To investigate this function, researchers should implement experimental designs that:

  • Employ ChIP-seq to identify genomic regions associated with MBIP binding

  • Utilize acetylation assays to measure H3/H4 acetylation levels following MBIP manipulation

  • Conduct transcriptomic analysis to identify genes regulated by MBIP-mediated chromatin modifications

  • Perform proteomics analysis to characterize the full composition of MBIP-containing complexes

Each experimental approach should incorporate the principles of sound experimental design , including defined variables, appropriate controls, and adequate replication to ensure statistical validity.

How is MBIP involved in human disease pathogenesis?

According to the available data, MBIP is associated with several human diseases, including Ectodermal Dysplasia And Immunodeficiency 2 and Bronchus Adenoma .

DiseaseTypePotential Mechanism
Ectodermal Dysplasia And Immunodeficiency 2Developmental/ImmuneMBIP mutations affecting chromatin regulation in ectodermal and immune cell development
Bronchus AdenomaNeoplasticAltered MBIP expression or function affecting cell proliferation pathways

For researchers investigating these disease associations, methodological approaches should include:

  • Genetic screening of patient cohorts to identify disease-associated MBIP variants

  • Functional characterization of identified variants using cellular and animal models

  • Investigation of molecular pathways linking MBIP dysfunction to disease phenotypes

  • Development of potential therapeutic strategies based on the mechanistic insights

What are the optimal experimental designs for studying MBIP function?

When designing experiments to study MBIP function, researchers should apply the principles of design of experiments (DOE) , which provides a systematic framework for planning, conducting, and analyzing experiments.

For MBIP research specifically:

  • Define variables clearly:

    • Independent variables: MBIP expression levels, mutations, experimental conditions

    • Dependent variables: Pathway activation, histone acetylation, gene expression

    • Control variables: Cell type, growth conditions, assay parameters

  • Select appropriate experimental approaches:

    • Loss-of-function: CRISPR/Cas9 knockout, RNAi knockdown, dominant-negative mutants

    • Gain-of-function: Overexpression systems, inducible expression

    • Structure-function: Site-directed mutagenesis, domain deletion/swapping

  • Control for confounding factors:

    • Use isogenic cell lines to minimize genetic background effects

    • Include appropriate positive and negative controls

    • Implement randomization and blinding where applicable

  • Ensure statistical validity:

    • Determine appropriate sample sizes through power analysis

    • Plan for adequate biological and technical replicates

    • Select suitable statistical tests based on data distribution and experimental design

These experimental design principles will enhance the reliability, validity, and reproducibility of MBIP research findings .

How can researchers effectively study MBIP protein interactions?

To characterize MBIP protein interactions comprehensively, researchers should employ multiple complementary approaches:

MethodApplicationAdvantagesLimitations
Affinity purification-MSIdentification of protein complexesComprehensive, quantitativeIncludes indirect interactions
Yeast two-hybridDirect binary interactionsHigh-throughput screeningPotential false positives
Co-immunoprecipitationValidation of interactionsPreserves cellular contextAntibody specificity issues
Proximity labelingSpatial interaction networksCaptures transient interactionsRequires protein engineering
Structural studiesMolecular interaction detailsAtomic resolutionTechnically challenging

When designing interaction studies, researchers should consider MBIP's multiple cellular localizations (cytosol, nucleolus, nucleoplasm) and how these compartmentalization patterns might affect interaction profiles.

What methodological considerations are important when studying MBIP in disease models?

When investigating MBIP in disease contexts, researchers should carefully design experiments that bridge molecular mechanisms with disease phenotypes:

  • Model selection considerations:

    • Cell lines: Choose disease-relevant cell types or patient-derived cells

    • Animal models: Consider tissue-specific or inducible systems to study developmental effects

    • Organoids: Employ for 3D tissue organization and cell-cell interactions

  • Disease-relevant experimental parameters:

    • Measure phenotypes directly related to disease manifestations

    • Include physiologically relevant stressors or stimuli

    • Compare results with human patient data when available

  • Translational research approaches:

    • Screen for compounds that modulate MBIP function or downstream effects

    • Test potential therapeutic strategies in disease models

    • Validate findings across multiple model systems

How can MBIP gene expression be studied in behavioral intervention research?

While MBIP is primarily studied as a molecular regulator, some researchers may be interested in potential connections between MBIP gene function and behavioral outcomes. For such investigations:

  • Molecular-behavioral correlations:

    • Assess MBIP expression or genetic variants in relation to behavioral traits

    • Examine MBIP function in brain regions relevant to specific behaviors

    • Investigate MBIP's role in stress responses that might influence behavior

  • Methodological approaches:

    • GWAS or candidate gene studies examining MBIP variants and behavioral phenotypes

    • Brain region-specific expression analysis in animal models of behavioral conditions

    • Functional studies examining MBIP's role in neuronal signaling relevant to behavior

These approaches require careful experimental design with clearly defined behavioral phenotypes, appropriate controls, and consideration of confounding variables .

What methodological approaches are appropriate for evaluating MBIP behavioral intervention programs?

Another context in which MBIP appears in research is the Men's Behaviour Intervention Programme (MBIP), which is designed to support men in managing their behaviors, particularly in domestic violence contexts . Researchers evaluating such programs should employ:

  • Rigorous study designs:

    • Randomized controlled trials comparing intervention to control conditions

    • Longitudinal follow-up to assess sustained behavioral change

    • Mixed-methods approaches combining quantitative and qualitative assessment

  • Comprehensive outcome measurement:

    • Behavioral indicators (e.g., recidivism rates, incident reports)

    • Psychological measures (attitudes, emotional regulation)

    • Program engagement metrics (attendance, completion of weekly progress reports)

  • Implementation analysis:

    • Program fidelity assessment

    • Evaluation of commitment to the 27-week program structure

    • Assessment of accountability and honesty regarding behaviors

Such research must prioritize safety considerations, as noted in the program documentation that "the safety of all women and children is paramount" .

What cutting-edge technologies are most applicable to MBIP functional studies?

Researchers investigating MBIP function can leverage several advanced technologies:

TechnologyApplication to MBIP ResearchMethodological Considerations
CRISPR screeningSystematic analysis of MBIP functionRequires careful sgRNA design and screening validation
Single-cell technologiesCell-type specific MBIP expression and functionNeed for appropriate clustering and trajectory analysis
ProteomicsMBIP interactome and post-translational modificationsSample preparation crucial for low-abundance proteins
Cryo-EMStructural analysis of MBIP-containing complexesProtein purification and complex stability are key challenges
Integrative multi-omicsComprehensive MBIP pathway analysisRequires sophisticated computational integration methods

Implementation of these technologies should follow sound experimental design principles to maximize their value in MBIP research .

How should researchers analyze and interpret complex MBIP-related datasets?

MBIP research increasingly generates complex, multi-dimensional datasets that require sophisticated analytical approaches:

  • Transcriptomic data analysis:

    • Differential expression analysis comparing MBIP manipulation conditions

    • Pathway enrichment to identify affected biological processes

    • Integration with epigenomic data to connect chromatin regulation with expression

  • Proteomic data handling:

    • Statistical filtering of interaction datasets to minimize false positives

    • Network analysis to position MBIP within broader protein interaction networks

    • Validation of key interactions through orthogonal methods

  • Integrative analysis approaches:

    • Multi-omics data integration to connect MBIP-associated genomic, epigenomic, and proteomic changes

    • Machine learning methods to identify patterns in complex datasets

    • Visualization techniques to effectively communicate complex relationships

These analytical approaches should be implemented with appropriate statistical rigor and consideration of multiple hypothesis testing .

What are the most promising future research directions for MBIP?

Based on current knowledge, several research directions appear particularly promising:

  • Detailed mechanistic studies of MBIP's dual roles in JNK pathway regulation and chromatin modification

  • Investigation of MBIP's contribution to Ectodermal Dysplasia And Immunodeficiency 2 and Bronchus Adenoma pathogenesis

  • Exploration of potential therapeutic approaches targeting MBIP function in disease contexts

  • Development of improved research tools for studying MBIP protein dynamics and interactions

Researchers pursuing these directions should implement rigorous experimental designs following DOE principles to advance understanding of this multifunctional protein.

How can researchers ensure reproducibility in MBIP studies?

To enhance reproducibility in MBIP research:

  • Follow comprehensive experimental design principles

  • Provide detailed methodological reporting including antibody validation, cell line verification, and assay conditions

  • Share research materials, protocols, and data through appropriate repositories

  • Implement blinding and randomization where applicable

  • Conduct adequate replication, including both technical and biological replicates

Product Science Overview

Structure and Function

MBIP contains two tandemly oriented leucine-zipper-like motifs, which are essential for its function. The primary role of MBIP is to inhibit the activity of MAP3K12, thereby regulating the JNK/SAPK signaling pathway . This pathway is vital for controlling cellular responses to stress and cytokines.

Role in Disease

MBIP has been implicated in various diseases, including cancer. For instance, it has been shown to drive the metastasis of non-small cell lung cancer (NSCLC) by activating matrix metalloproteinases (MMPs) through the JNK-dependent pathway . This makes MBIP a potential target for therapeutic interventions in cancer treatment.

Recombinant MBIP

Recombinant MBIP is produced using Escherichia coli (E. coli) expression systems. The recombinant protein typically includes an N-terminal His-tag, which facilitates its purification and detection . The protein is denatured and purified to a high degree of purity, often exceeding 85% as determined by SDS-PAGE .

Applications

Recombinant MBIP is used in various research applications, including:

  • Studying the JNK/SAPK signaling pathway: Researchers use recombinant MBIP to understand how this pathway is regulated and its role in cellular stress responses.
  • Cancer research: Given its role in cancer metastasis, recombinant MBIP is used to study the mechanisms of cancer progression and to develop potential therapeutic strategies.
  • Drug development: MBIP can be a target for developing drugs aimed at inhibiting its function, thereby controlling diseases associated with its dysregulation.
Storage and Handling

Recombinant MBIP should be stored at 4°C for short-term use and at -20°C for long-term storage. It is essential to avoid freeze-thaw cycles to maintain the protein’s stability and functionality .

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.