Recombinant Human HERV-H LTR-associating protein 2 (HHLA2), partial

Code CSB-MP891555HU1
Abbreviation Recombinant Human HHLA2 protein, partial
MSDS
Size $118
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
  • The purity of HHLA2 was greater than 95% as determined by SEC-HPLC
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Product Details

Purity
Greater than 95% as determined by SDS-PAGE.
Greater than 95% as determined by SEC-HPLC.
Activity
Not Test
Target Names
Uniprot No.
Research Area
Cell Biology
Alternative Names
Human endogenous retrovirus-H long terminal repeat-associating protein 2
Source
Mammalian cell
Expression Region
23-344aa
Target Protein Sequence
IFPLAFFIYVPMNEQIVIGRLDEDIILPSSFERGSEVVIHWKYQDSYKVHSYYKGSDHLESQDPRYANRTSLFYNEIQNGNASLFFRRVSLLDEGIYTCYVGTAIQVITNKVVLKVGVFLTPVMKYEKRNTNSFLICSVLSVYPRPIITWKMDNTPISENNMEETGSLDSFSINSPLNITGSNSSYECTIENSLLKQTWTGRWTMKDGLHKMQSEHVSLSCQPVNDYFSPNQDFKVTWSRMKSGTFSVLAYYLSSSQNTIINESRFSWNKELINQSDFSMNLMDLNLSDSGEYLCNISSDEYTLLTIHTVHVEPSQETASHN
Note: The complete sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
If the exact amino acid sequence of this recombinant protein is critical to your application, please explicitly request the full and complete sequence of this protein before ordering.
Mol. Weight
38.3 kDa
Protein Length
Partial
Tag Info
C-terminal 10xHis-tagged
Form
Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
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.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
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°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4℃ for up to one week.
Datasheet & COA
Please contact us to get it.

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Target Background

Function
Through interaction with TMIGD2, costimulates T-cells in the context of TCR-mediated activation. Enhances T-cell proliferation and cytokine production via an AKT-dependent signaling cascade.
Gene References into Functions
  1. HHLA2 protein expression was evaluated in primary tumor specimens and metastatic disease using an osteosarcoma tumor microarray. HHLA2 was expressed in almost all metastatic disease specimens and was more prevalent than in primary specimens without known metastases. PMID: 27531281
  2. HHLA2 was not detected in most of normal lung tissue but expressed in 66% of NSCLC across different subtypes. In particular, EGFR-mutated NSCLC was significantly associated with higher tumor HHLA2 expression in both discovery and validation lung cancer cohorts. HHLA2 is widely expressed in NSCLC and is associated with EGFR mutation and high TILs in lung adenocarcinoma. PMID: 27553831
  3. Low B7-H5 expression is associated with pancreatic adenocarcinomas. PMID: 25519928
  4. The HHLA2 pathway represents a novel immunosuppressive mechanism within the tumor microenvironment. PMID: 25549724
  5. B7 homologue 5 (B7-H5), was identified as a specific ligand for CD28H PMID: 23784006
  6. Data indicate that HHLA2 protein was predominantly found on cell membranes with some in the cytoplasm. PMID: 23716685

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Subcellular Location
Membrane; Single-pass type I membrane protein.
Tissue Specificity
Expressed at high levels in colon, kidney, testis, lung and pancreas, and at lower levels in small intestine, liver and skeletal muscle. In immune cells, highly expressed in B-cells, dendritic cells and macrophages. Not detected in T-cells.
Database Links

HGNC: 4905

OMIM: 604371

KEGG: hsa:11148

STRING: 9606.ENSP00000350402

UniGene: Hs.225968

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