MTN2 Antibody

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Description

MT2 Antibodies in Hematopathology

The MT2 epitope (CD45RA) is a marker used to distinguish malignant follicular lymphomas from reactive lymphoid hyperplasia. Key studies demonstrate:

Study ParameterFindingsSource
Target AntigenCD45RA isoform of leukocyte common antigen (LCA)
Clinical UtilityMembranous staining in 18% of cutaneous follicle center lymphomas vs. 0% in pseudolymphomas
LimitationsNon-specific staining observed in 27% of lymphomas and 17% of inflammatory infiltrates

Source highlights that MT2 antibodies exhibit low specificity (18% sensitivity) for malignant germinal center cells, limiting diagnostic utility in dermatopathology.

TM2 Monoclonal Antibodies in Leukocyte Biology

Two monoclonal antibodies (TM2 and TM3) against a 120-kDa myeloid differentiation antigen show functional relevance:

PropertyTM2/TM3 CharacteristicsSource
Target Cell TypesMonocytes, granulocytes, platelets, lymphoid leukemia cells
Functional ImpactInhibits granulocyte chemotaxis by ~40% without affecting oxidative burst
Epitope RecognitionBinds same or adjacent epitopes on 120-kDa glycoprotein

These antibodies provide tools for studying myeloid cell migration but lack effects on platelet aggregation or neutrophil activation .

MDM2 Antibodies in Cancer Research

While unrelated to "MTN2," MDM2 (Mouse Double Minute 2 Homolog) antibodies are widely used in oncology:

CloneIF2 Clone (MDM2)Source
Target EpitopeAmino acids 26-169 of human MDM2 protein
ApplicationsDetects MDM2 overexpression in sarcomas and epithelial cancers
Molecular WeightRecognizes 57 kDa, 74-76 kDa, and 90 kDa MDM2 isoforms

MDM2 antibodies are critical for identifying amplification events in well-differentiated liposarcomas .

Technical Considerations for Antibody Validation

Key challenges in antibody research include:

  • Epitope Specificity: Commercial MT2 antibodies show variable performance in different tissue contexts .

  • Cross-Reactivity: Anti-M2 mitochondrial antibodies (AMA-M2) must be distinguished from lymphoid markers due to nomenclature overlap .

  • Functional Assays: Antibodies like TM2 require functional validation (e.g., chemotaxis assays) beyond immunohistochemistry .

Research Gaps and Future Directions

No validated "MTN2 Antibody" exists in current literature. Potential explanations for this discrepancy include:

  1. Terminological Error: "MTN2" may represent a typographical error for established targets (e.g., MT2, MDM2).

  2. Undisclosed Commercial Product: The term could refer to a proprietary antibody not yet documented in public databases.

  3. Emerging Target: Hypothetically, MTN2 could denote a novel mitochondrial or metabolic antigen awaiting characterization.

Researchers encountering "MTN2 Antibody" in proprietary contexts should demand:

  • Epitope mapping data

  • Cross-validation with knockout models

  • Functional studies demonstrating target engagement

Product Specs

Buffer
Preservative: 0.03% ProClin 300; Constituents: 50% Glycerol, 0.01M PBS, pH 7.4
Form
Liquid
Lead Time
14-16 weeks (Made-to-order)
Synonyms
MTN2 antibody; MTAN2 antibody; At4g34840 antibody; T11I11.80 antibody; 5'-methylthioadenosine/S-adenosylhomocysteine nucleosidase 2 antibody; AtMTN2 antibody; EC 3.2.2.9 antibody; 5'-methylthioadenosine nucleosidase antibody; MTA nucleosidase antibody; MTA/SAH nucleosidase 2 antibody; AtMTAN2 antibody; S-adenosylhomocysteine nucleosidase antibody; AdoHcy nucleosidase antibody; SAH nucleosidase antibody; SRH nucleosidase antibody
Target Names
MTN2
Uniprot No.

Target Background

Function
This antibody targets MTA nucleosidase (MTN2), an enzyme crucial to the methionine cycle. MTN2 catalyzes the irreversible cleavage of 5'-methylthioadenosine (MTA) and, to a lesser extent, S-adenosylhomocysteine (SAH/AdoHcy). This cleavage yields adenine and the corresponding thioribose (5'-methylthioribose and S-ribosylhomocysteine, respectively). MTN2 plays a vital role in maintaining AdoMet homeostasis and is essential for sustaining high rates of ethylene synthesis.
Gene References Into Functions
  • MTA's role as a critical regulatory metabolite linking the Yang cycle and polyamine biosynthesis, highlighting MTA nucleosidase's importance within the Yang cycle. [MTN2] PMID: 20345605
  • Kinetic characterization of AtMTAN2. PMID: 18342331
  • Structural comparison of AtMTAN2 with AtMTAN1 and an E. coli homolog, providing insights into substrate specificity of MTA nucleosidases in Arabidopsis thaliana. PMID: 19249293
Database Links

KEGG: ath:AT4G34840

STRING: 3702.AT4G34840.1

UniGene: At.31466

Protein Families
PNP/UDP phosphorylase family, MtnN subfamily

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