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Your Position: > Protein > Thrombopoietin > GMP-THNH25

GMP Human Thrombopoietin Protein

인기 제품 추천:
PG version THN-H5216 is now available for seamless transition.
  • Features
    1. Designed under ISO 9001:2015 and ISO 13485:2016

    2. Manufactured and QC tested under a GMP compliance factory

    3. Animal-Free materials

    4. Beta-lactam materials free

    5. Batch-to-batch consistency

    6. Stringent quality control tests

  • Source
    GMP Human Thrombopoietin Protein(GMP-THNH25) is expressed from human 293 cells (HEK293). It contains AA Ser 22 - Gly 353 (Accession # P40225-1).
    Predicted N-terminus: Ser 22
  • Molecular Characterization
    Thrombopoietin Structure

    This protein carries no "tag".

    The protein has a calculated MW of 35.5 kDa. The protein migrates as 75 kDa±5 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.

  • Endotoxin
    Less than 10 EU/mg by the LAL method.
  • Host Cell Protein
    <0.5 ng/µg of protein tested by ELISA.
  • Host Cell DNA
    <0.02 ng/μg of protein tested by qPCR.
  • Sterility
    The sterility testing was performed by membrane filtration method described in CP<1101>, USP<71> and Eur. Ph. 2.6.1.
  • Mycoplasma
    Negative.
  • Purity

    >95% as determined by SDS-PAGE.

  • Formulation

    Lyophilized from 0.22 μm filtered solution in 20 mM NaAc-HAc, pH5.0 with protectants.

    Contact us for customized product form or formulation.

  • Shipping

    This product is supplied and shipped with blue ice, please inquire the shipping cost.

  • Storage

    Upon receipt, store it immediately at -20°C or lower for long term storage.

    Please avoid repeated freeze-thaw cycles.

    This product is stable after storage at:

    1. -20°C to -70°C for 5 years in lyophilized state;
    2. -70°C for 12 months under sterile conditions after reconstitution.
SDS-PAGE
Thrombopoietin SDS-PAGE

GMP Human Thrombopoietin Protein on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95% (With Star Ribbon Pre-stained Protein Marker).

Bioactivity-Bioactivity CELL BASE
 Thrombopoietin CELL

GMP Human Thrombopoietin Protein (Cat. No. GMP-THNH25) stimulates proliferation of Mo7e cells. The specific activity of GMP Human Thrombopoietin Protein is >1.00ⅹ10^7 IU/mg, which is calibrated against human TPO Standard (NIBSC code: 03/124) (QC tested).

 Thrombopoietin CELL

The activity of GMP Human Thrombopoietin Protein (Cat. No. GMP-THNH25) was higher than other competing products.

Application Data
 Thrombopoietin APPLICATION DATA

GMP Human SCF Protein (Cat. No. GMP-SCFH25), GMP Human Thrombopoietin Protein (Cat. No. GMP-THNH25), GMP Human Flt-3 Ligand Protein (Cat. No. GMP-FLLH28), GMP Human FGF basic Protein (Cat. No. GMP-FGCH17) and GMP Human VEGF165 Protein (Cat. No. GMP-VE5H23) could significantly promote the iPSC differentiation to HSPCs after 14 days, highly expressed hematopoietic stem cell markers CD34 and CD45.

 Thrombopoietin APPLICATION DATA

GMP Human Thrombopoietin Protein (Cat. No. GMP-THNH25) is crucial for the expansion of human CD34+ hematopoietic cells cultured with medium containing GMP Human SCF Protein (Cat. No. GMP-SCFH25) and GMP Human Flt-3 Ligand Protein (Cat. No. GMP-FLLH28). Cell viability was checked using a luminescent cell viability detection reagent.

Bioactivity-Stability
 Thrombopoietin STABILITY

The Cell based assay shows that GMP Human Thrombopoietin Protein (Cat. No. GMP-THNH25) is stable at 37°C for 24 hours.

 Thrombopoietin STABILITY

The Cell based assay shows that GMP Human Thrombopoietin Protein (Cat. No. GMP-THNH25) is stable at 4°C for 180 days.

 Thrombopoietin STABILITY

The Cell based assay shows that GMP Human Thrombopoietin Protein (Cat. No. GMP-THNH25) is stable after freezing and thawing 3 times.

 Thrombopoietin STABILITY

The Cell based assay shows batch-to-batch consistency between Acro's GMP and PG Thrombopoietin.

  • MANUFACTURING SPECIFICATIONS

    ACROBiosystems GMP grade products are produced under a quality management system and in compliance with relevant guidelines: Ph. Eur General Chapter 5.2.12 Raw materials of biological origin for the production of cell-based and gene therapy medicinal products; USP<92>Growth Factors and Cytokines Used in Cell Therapy Manufacturing; USP<1043>Ancillary Materials for Cell, Gene, and Tissue-Engineered Products; ISO/TS 20399-1:2018, Biotechnology - Ancillary Materials Present During the Production of Cellular Therapeutic Products.


    ACROBiosystems Quality Management System Contents:

    1. Designed under ISO 9001:2015 and ISO 13485:2016, Manufactured and QC tested under a GMP compliance factory.

    2. Animal-Free materials

    3. Materials purchased from the approved suppliers by QA

    4. ISO 5 clean rooms and automatic filling equipment

    5. Qualified personnel

    6. Quality-related documents review and approve by QA

    7. Fully batch production and control records

    8. Equipment maintenance and calibration

    9. Validation of analytical procedures

    10. Stability studies conducted

    11. Comprehensive regulatory support files

    Request For Regulatory Support Files(RSF)


    ACROBiosystems provide rigorous quality control tests (fully validated equipment, processes and test methods) on our GMP grade products to ensure that they meet stringent standards in terms of purity, safety, activity and inter-batch stability, and each bulk QC lot mainly contains the following specific information:

    1. SDS-PAGE

    2. Protein content

    3. Endotoxin level

    4. Residual Host Cell DNA content

    5. Residual Host Cell Protein content

    6. Biological activity analysis

    7. Microbial testing

    8. Mycoplasma testing

    9. In vitro virus assay

    10. Residual moisture
    11. Batch-to-batch consistency

  • Background
    Thrombopoietin (Tpo), is a key regulator of megakaryocytopoiesis and thrombopoiesis. It is principally produced in the liver and is bound and internalized by the receptor Tpo R/c-mpl. Defects in the Tpo-Tpo R signaling pathway are associated with a variety of platelet disorders (1-3). The 353 amino acid (aa) human Tpo precursor is cleaved to yield the 332 aa mature protein. Mature human Tpo shares approximately 70% aa sequence homology with mouse and rat Tpo. It is an 80‑85 kDa protein that consists of an N‑terminal domain with homology to Erythropoietin (Epo) and a C‑terminal domain that contains multiple N‑linked and O-linked glycosylation sites (4, 5). Tissue specific alternate splicing of human Tpo generates multiple isoforms with internal deletions, insertions, and/or C‑terminal substitutions (6). Tpo promotes the differentiation, proliferation, and maturation of MK and their progenitors (4, 5, 7). Several other cytokines can promote these functions as well but only in cooperation with Tpo (8, 9). Notably, IL-3 independently induces MK development, although its effects are restricted to early in the MK lineage (8, 9). Tpo additionally promotes platelet production, aggregation, ECM adhesion, and activation (10-13). It is cleaved by platelet-derived thrombin following Arg191 within the C‑terminal domain and subsequently at other sites upon extended digestion (14). Both full length Tpo and shorter forms circulate in the plasma, with the shorter, N‑terminal EPO-like domain forms showing significantly increased specific activity (4, 5, 15). The C‑terminal domain is not required for binding to Tpo R or inducing MK growth and differentiation (5). Aside from its hematopoietic effects, Tpo is expressed in the brain where it promotes the apoptosis of hypoxia-sensitized neurons and inhibits neuronal differentiation by blocking NGF induced signaling (16, 17).
  • Clinical and Translational Updates

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