Recombinant Epstein-Barr virus Latent membrane protein 2 (LMP2), partial | CSB-EP321086EFA

Recombinant Epstein-Barr virus Latent membrane protein 2 (LMP2), partial | CSB-EP321086EFA | Cusabio

Alternative Name(s): Terminal protein

Gene Names: LMP2

Research Areas: Cell Biology

Organism: Epstein-Barr virus (strain B95-8) (HHV-4) (Human herpesvirus 4)

AA Sequence: MGSLEMVPMGAGPPSPGGDPDGYDGGNNSQYPSASGSSGNTPTPPNDEERESNEEPPPPYEDPYWGNGDRHSDYQPLGTQDQSLYLGLQHDGNDGLPPPPYSPRDDSSQHIYEEAGRGSMNPVCLPVIVAPYLFWLAAIAASCFTAS

Source: E.coli

Tag Info: N-terminal 6xHis-SUMO-tagged

Expression Region: 1-147aa

Sequence Info: Partial

MW: 31.6 kDa

Purity: Greater than 90% as determined by SDS-PAGE.

Relevance: Isoform LMP2A maintains EBV latent infection of B-lymphocyte, by preventing lytic reactivation of the virus in response to surface immunoglobulin (sIg) cross-linking. Acts like a dominant negative inhibitor of the sIg-associated protein tyrosine kinases, LYN and SYK. Also blocks translocation of the B-cell antigen receptor (BCR) into lipid rafts, preventing the subsequent signaling and accelerated internalization of the BCR upon BCR cross-linking. Serves as a molecular scaffold to recruit SYK, LYN and E3 protein-ubiquitin ligases, such as ITCH and NEDD4L, leading to ubiquitination and potential degradation of both tyrosines kinases. Possesses a constitutive signaling activity in non-transformed cells, inducing bypass of normal B lymphocyte developmental checkpoints allowing immunoglobulin-negative cells to colonize peripheral lymphoid organs. Isoform LMP2B may be a negative regulator of isoform LMP2A.

Reference: "A spliced Epstein-Barr virus gene expressed in immortalized lymphocytes is created by circularization of the linear viral genome."Laux G., Perricaudet M., Farrell P.J.EMBO J. 7:769-774(1988)

Storage: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20?/-80?. The shelf life of lyophilized form is 12 months at -20?/-80?.

Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4? for up to one week.

Function: Isoform LMP2A maintains EBV latent infection of B-lymphocyte, by preventing lytic reactivation of the virus in response to surface immunoglobulin (sIg) cross-linking. Acts like a dominant negative inhibitor of the sIg-associated protein tyrosine kinases, LYN and SYK. Also blocks translocation of the B-cell antigen receptor (BCR) into lipid rafts, preventing the subsequent signaling and accelerated internalization of the BCR upon BCR cross-linking. Serves as a molecular scaffold to recruit SYK, LYN and E3 protein-ubiquitin ligases, such as ITCH and NEDD4L, leading to ubiquitination and potential degradation of both tyrosines kinases. Possesses a constitutive signaling activity in non-transformed cells, inducing bypass of normal B lymphocyte developmental checkpoints allowing immunoglobulin-negative cells to colonize peripheral lymphoid organs.; FUNCTION

Involvement in disease:

Subcellular Location: Isoform LMP2A: Host cell membrane, Multi-pass membrane protein, Note=Isoform LMP2A is localized in plasma membrane lipid rafts, SUBCELLULAR LOCATION: Isoform LMP2B: Host endomembrane system, Multi-pass membrane protein, Host cytoplasm, host perinuclear region

Protein Families: Herpesviridae LMP-2 family

Tissue Specificity:

Paythway:

Form: Liquid or Lyophilized powder

Buffer: If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.

Reconstitution: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20?/-80?. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Uniprot ID: P13285

HGNC Database Link: N/A

UniGene Database Link: N/A

KEGG Database Link: KEGG

STRING Database Link: N/A

OMIM Database Link: N/A