Recombinant Human Junctional Adhesion Molecule 2/JAM-B protein (denatured) is a Human Fragment protein, in the 21 to 238 aa range, expressed in Escherichia coli, with >90% purity and suitable for SDS-PAGE.
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Key facts
- Purity
- >90% SDS-PAGE
- Expression system
- Escherichia coli
- Tags
- His tag N-Terminus
- Applications
- SDS-PAGE
- Biologically active
- No
Amino acid sequence
M G S S H H H H H H S S G L V P R G S H M G S L G Y H K A Y G F S A P K D Q Q V V T A V E Y Q E A I L A C K T P K K T V S S R L E W K K L G R S V S F V Y Y Q Q T L Q G D F K N R A E M I D F N I R I K N V T R S D A G K Y R C E V S A P S E Q G Q N L E E D T V T L E V L V A P A V P S C E V P S S A L S G T V V E L R C Q D K E G N P A P E Y T W F K D G I R L L E N P R L G S Q S T N S S Y T M N T K T G T L Q F N T V S K L D T G E Y S C E A R N S V G Y R R C P G K R M Q V D D L N I S
Reactivity data
| Application | Reactivity | Dilution info | Notes |
|---|---|---|---|
Application SDS-PAGE | Reactivity Reacts | Dilution info - | Notes - |
Associated Products
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Target data
Function
Junctional adhesion protein that mediates heterotypic cell-cell interactions with its cognate receptor JAM3 to regulate different cellular processes (PubMed:11590146, PubMed:11823489, PubMed:24357068). Plays a role in homing and mobilization of hematopoietic stem and progenitor cells within the bone marrow (PubMed:24357068). At the surface of bone marrow stromal cells, it contributes to the retention of the hematopoietic stem and progenitor cells expressing JAM3 (PubMed:11590146, PubMed:24357068). Plays a central role in leukocytes extravasation by facilitating not only transmigration but also tethering and rolling of leukocytes along the endothelium (PubMed:12239159). Tethering and rolling of leukocytes are dependent on the binding by JAM2 of the integrin alpha-4/beta-1 (PubMed:12070135). Plays a role in spermatogenesis where JAM2 and JAM3, which are respectively expressed by Sertoli and germ cells, mediate an interaction between both cell types and play an essential role in the anchorage of germ cells onto Sertoli cells and the assembly of cell polarity complexes during spermatid differentiation (By similarity). Also functions as an inhibitory somatodendritic cue that prevents the myelination of non-axonal parts of neurons (By similarity). During myogenesis, it is involved in myocyte fusion (By similarity). May also play a role in angiogenesis (By similarity).
Alternative names
CD322, C21orf43, VEJAM, UNQ219/PRO245, JAM2, Junctional adhesion molecule B, JAM-B, Junctional adhesion molecule 2, Vascular endothelial junction-associated molecule, JAM-2, VE-JAM
Recommended products
Recombinant Human Junctional Adhesion Molecule 2/JAM-B protein (denatured) is a Human Fragment protein, in the 21 to 238 aa range, expressed in Escherichia coli, with >90% purity and suitable for SDS-PAGE.
Key facts
- Purity
- >90% SDS-PAGE
- Expression system
- Escherichia coli
- Tags
- His tag N-Terminus
- Applications
- SDS-PAGE
- Biologically active
- No
- Accession
- P57087-1
- Animal free
- No
- Species
- Human
- Concentration
- Storage buffer
pH: 8
Constituents: 10% Glycerol (glycerin, glycerine), 2.4% Urea, 0.32% Tris HCl
Sequence info
Amino acid sequence
- M G S S H H H H H H S S G L V P R G S H M G S L G Y H K A Y G F S A P K D Q Q V V T A V E Y Q E A I L A C K T P K K T V S S R L E W K K L G R S V S F V Y Y Q Q T L Q G D F K N R A E M I D F N I R I K N V T R S D A G K Y R C E V S A P S E Q G Q N L E E D T V T L E V L V A P A V P S C E V P S S A L S G T V V E L R C Q D K E G N P A P E Y T W F K D G I R L L E N P R L G S Q S T N S S Y T M N T K T G T L Q F N T V S K L D T G E Y S C E A R N S V G Y R R C P G K R M Q V D D L N I S
- Accession
- P57087
- Protein length
- Fragment
- Predicted molecular weight
- 26.7 kDa
- Amino acids
- 21 to 238
- Nature
- Recombinant
- Tags
- His tag N-Terminus
Specifications
- Form
- Liquid
General info
- Function
Junctional adhesion protein that mediates heterotypic cell-cell interactions with its cognate receptor JAM3 to regulate different cellular processes (PubMed:11590146, PubMed:11823489, PubMed:24357068). Plays a role in homing and mobilization of hematopoietic stem and progenitor cells within the bone marrow (PubMed:24357068). At the surface of bone marrow stromal cells, it contributes to the retention of the hematopoietic stem and progenitor cells expressing JAM3 (PubMed:11590146, PubMed:24357068). Plays a central role in leukocytes extravasation by facilitating not only transmigration but also tethering and rolling of leukocytes along the endothelium (PubMed:12239159). Tethering and rolling of leukocytes are dependent on the binding by JAM2 of the integrin alpha-4/beta-1 (PubMed:12070135). Plays a role in spermatogenesis where JAM2 and JAM3, which are respectively expressed by Sertoli and germ cells, mediate an interaction between both cell types and play an essential role in the anchorage of germ cells onto Sertoli cells and the assembly of cell polarity complexes during spermatid differentiation (By similarity). Also functions as an inhibitory somatodendritic cue that prevents the myelination of non-axonal parts of neurons (By similarity). During myogenesis, it is involved in myocyte fusion (By similarity). May also play a role in angiogenesis (By similarity).
- Sequence similarities
Belongs to the immunoglobulin superfamily.
Storage
- Shipped at conditions
- Blue Ice
- Appropriate short-term storage duration
- 1-2 weeks
- Appropriate short-term storage conditions
- +4°C
- Appropriate long-term storage conditions
- -20°C
- Aliquoting information
- Upon delivery aliquot
- Storage information
- Avoid freeze / thaw cycle
Notes
Previously labelled as Junctional Adhesion Molecule 2.
Supplementary info
- This supplementary information is collated from multiple sources and compiled automatically.
- Activity summary
Junctional Adhesion Molecule 2 also known as JAM-B JAM B or JAM Protein is a member of the immunoglobulin superfamily of proteins. It has a molecular mass of approximately 38 kDa and is expressed on the surface of endothelial and epithelial cells. JAM-B plays an important role in regulating cellular adhesion facilitating the interaction between adjacent cells. This target is important in maintaining cell polarity and integrity making it an adhesion example of the body’s cellular architecture.
- Biological function summary
Junctional adhesion molecule 2 participates in a range of processes related to the formation and maintenance of tight junctions. It is a component of the tight junction complex interacting with other proteins to influence barrier function in vascular and epithelial tissues. This molecule is involved in leukocyte transmigration which is essential during inflammation as leukocytes need to exit the bloodstream to reach sites of infection or injury. It partners with other tight junction proteins which assists in its role in cell adhesion dynamics.
- Pathways
JAM-B is involved in the regulation of the leukocyte adhesion cascade and tight junction signaling. Its function is interlinked with the integrin and chemokine pathways influencing leukocyte migration. Junctional adhesion molecule 2 associates with proteins like integrins and PECAM-1 playing a part in the orchestration of cellular movements and interactions that are critical to proper immune response and tissue homeostasis.
- Associated diseases and disorders
Junctional adhesion molecule 2 correlation exists with inflammatory diseases and cancer. Its role in leukocyte transmigration links it to inflammatory conditions where increased or disrupted JAM-B expression can affect immune cell infiltration and inflammation severity. In cancer aberrant JAM-B expression can influence tumor growth and metastasis due to its impact on cell adhesion and migration. JAM-B interacts with PD-1 in the context of these diseases highlighting its part in immune regulation and signaling networks associated with tumor progression.
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SDS-PAGE - Recombinant Human Junctional Adhesion Molecule 2/JAM-B protein (denatured) (ab139237)
15% SDS-PAGE analysis of 3 µg ab139237.
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