| Field | Specification |
|---|---|
| Mfr No | |
| Activity | |
| Alternative Names | CDw44 (Epican) (Extracellular matrix receptor III) (ECMR-III) (GP90 lymphocyte homing/adhesion receptor) (HUTCH-I) (Heparan sulfate proteoglycan) (Hermes antigen) (Hyaluronate receptor) (Phagocytic glycoprotein 1) (PGP-1) (Phagocytic glycoprotein I) (PGP-I) (CD_antigen: CD44) (LHR) (MDU2) (MDU3) (MIC4) |
| Conjugate | |
| Endotoxin Level | |
| Expression System | |
| Form | Liquid or Lyophilized powder |
| Molecular Weight | |
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| Purity | |
| Reconstitution | |
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| UniProt # |
Overview
This Recombinant Protein provides recombinant CD44 from Homo sapiens (Human), produced in E.coli (region 28-380aa). It is commonly used as a defined reagent for assay development, binding studies, and mechanistic research (RUO).
Key elements and design rationale
- Region: 28-380aa (domain boundaries can affect binding/activity readouts).
- Expression host: E.coli (may differ from native PTMs/processing).
- Tag(s): His (supports purification/detection; consider tag effects in controls).
Biological background
Also reported as CDw44 (Epican) (Extracellular matrix receptor III) (ECMR-III) (GP90 lymphocyte homing/adhesion receptor) (HUTCH-I) (Heparan sulfate proteoglycan) (Hermes antigen) (Hyaluronate receptor) (Phagocytic glycoprotein 1) (PGP-1) (Phagocytic glycoprotein I) (PGP-I) (CD_antigen: CD44) (LHR) (MDU2) (MDU3) (MIC4). Receptor for hyaluronic acid. Mediates cell-cell and cell-matrix interactions through its affinity for HA, and possibly also through its affinity for other ligands such as osteopontin, collagens, and matrix metalloproteinases. Adhesion with HA plays an important role in cell migration, tumor growth and progression. In cancer cells, may play an important role in invadopodia formation. Also involved in lymphocyte activation, recirculation and homing, and in hematopoiesis. Altered expression or dysfunction causes numerous pathogenic phenotypes. Great protein heterogeneity due to numerous alternative splicing and post-translational modification events. Receptor for LGALS9; the interaction enhances binding of SMAD3 to the FOXP3 promoter, leading to up-regulation of FOXP3 expression and increased induced regulatory T cell stability and suppressive function.
Research relevance and current trends
- Quantitative mapping of ligand/receptor signaling to downstream phospho- and transcriptional programs.
- Use of recombinant standards to improve assay calibration and cross-study comparability.
Receptor for hyaluronic acid. Mediates cell-cell and cell-matrix interactions through its affinity for HA, and possibly also through its affinity for other ligands such as osteopontin, collagens, and matrix metalloproteinases. Adhesion with HA plays an important role in cell migration, tumor growth and progression. In cancer cells, may play an important role in invadopodia formation. Also involved in lymphocyte activation, recirculation and homing, and in hematopoiesis. Altered expression or dysfunction causes numerous pathogenic phenotypes. Great protein heterogeneity due to numerous alternative splicing and post-translational modification events. Receptor for LGALS9; the interaction enhances binding of SMAD3 to the FOXP3 promoter, leading to up-regulation of FOXP3 expression and increased induced regulatory T cell stability and suppressive function.
Common research applications
- Standard curve or spike-in reference for quantitative assays involving CD44
- Binding interaction studies (e.g., SPR/BLI or plate-based binding formats)
- Cell-based stimulation studies with downstream marker readouts (conceptual)
Notes for experimental interpretation
- Recombinant constructs may not capture all native isoforms or PTMs.
- Consider tag- or host-related effects when interpreting binding or activity.
- Use appropriate blanks and matrix/control concepts to separate signal from background.
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