T-PA Protein, Human (HEK293, His)

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Based on 5 publication(s) in Google Scholar

T-PA is a key proteolytic enzyme that coordinates the conversion of the abundant but inactive zymogen plasminogen to its active form plasmin via hydrolysis of a single Arg-Val bond. This enzymatic conversion helps regulate plasmin-mediated proteolysis, a key process in tissue remodeling, degradation, and various pathophysiological events. T-PA Protein, Human (HEK293, His) is the recombinant human-derived T-PA protein, expressed by HEK293 , with C-6*His labeled tag.

For research use only. We do not sell to patients.
  • Species: Human
  • Source: HEK293
  • Storage:
    Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
  • Biological Activity
  • Technical Parameters
  • Product Properties
  • Documentation
  • References
  • Help & FAQs

Biological Activity

Description

T-PA is a key proteolytic enzyme that coordinates the conversion of the abundant but inactive zymogen plasminogen to its active form plasmin via hydrolysis of a single Arg-Val bond. This enzymatic conversion helps regulate plasmin-mediated proteolysis, a key process in tissue remodeling, degradation, and various pathophysiological events. T-PA Protein, Human (HEK293, His) is the recombinant human-derived T-PA protein, expressed by HEK293 , with C-6*His labeled tag.

Background

Tissue plasminogen activator (t-PA) is a pivotal protein that catalyzes the conversion of the abundant, yet inactive, zymogen plasminogen into the active protease plasmin, achieved by hydrolyzing a single Arg-Val bond in plasminogen. This enzymatic process is integral in controlling plasmin-mediated proteolysis, thereby playing a crucial role in tissue remodeling, degradation, and cell migration, as well as influencing various physiopathological events. Furthermore, t-PA exhibits functional significance during oocyte activation, participating in the cortical granule reaction in the zona reaction, which contributes to the prevention of polyspermy and serves as a protective mechanism during fertilization (By similarity). The multifaceted roles of t-PA underscore its importance in both physiological and reproductive processes, emphasizing its regulatory functions in proteolysis and cellular events.

In Vitro

T-PA Protein, Human (2.5-20 μg/mL, 48 h) enhances the adhesion and migration of T cells to bEnd.3 cells, upregulates the expression of ICAM-1 on the surface and in bEnd.3 cells[1].

In Vivo

T-PA Protein, Human (250 μg/kg, iv, once daily for 7 days) causes the early onset of experimental autoimmune encephalomyelitis (EAE) and increased disease severity in mouse MOG 35-55 (HY-P1240)-induced EAE model[1].

Verified Bioactivity

Measured by its ability to cleave a peptide substrate, N-carbobenzyloxy-Gly-Gly-Arg-7-amido-4-methylcoumarin (Z-GGR-AMC). Read at excitation and emission wavelengths of 380 nm and 460 nm (top read). The specific activity is >500.47 pmol/min/µg, as measured under the described conditions.

MCE Validation Data

  • Purity - SDS-PAGE

    Purity - SDS-PAGE

    ≥ 95%, as determined by reducing SDS-PAGE.

Technical Parameters

  • Species Human
  • Source HEK293
  • Tag C-6*His
  • Accession
  • Gene ID
  • Molecular Construction
    • N-term
    • T-PA (S36-P562)
      Accession # P00750-1
    • 6*His
    • C-term
  • Protein Length

    Full Length of Isoform-1 Mature Protein

  • Synonyms

    PLAT; T-PA; Plasminogen Activator, Tissue Type; TPA; Tissue-Type Plasminogen Activator; Plasminogen Activator, Tissue; T-Plasminogen Activator; Plasminogen/Activator Kringle; Alteplase; Plasminogen Activator; Reteplase

  • AA Sequence

    SYQVICRDEKTQMIYQQHQSWLRPVLRSNRVEYCWCNSGRAQCHSVPVKSCSEPRCFNGGTCQQALYFSDFVCQCPEGFAGKCCEIDTRATCYEDQGISYRGTWSTAESGAECTNWNSSALAQKPYSGRRPDAIRLGLGNHNYCRNPDRDSKPWCYVFKAGKYSSEFCSTPACSEGNSDCYFGNGSAYRGTHSLTESGASCLPWNSMILIGKVYTAQNPSAQALGLGKHNYCRNPDGDAKPWCHVLKNRRLTWEYCDVPSCSTCGLRQYSQPQFRIKGGLFADIASHPWQAAIFAKHRRSPGERFLCGGILISSCWILSAAHCFQERFPPHHLTVILGRTYRVVPGEEEQKFEVEKYIVHKEFDDDTYDNDIALLQLKSDSSRCAQESSVVRTVCLPPADLQLPDWTECELSGYGKHEALSPFYSERLKEAHVRLYPSSRCTSQHLLNRTVTDNMLCAGDTRSGGPQANLHDACQGDSGGPLVCLNDGRMTLVGIISWGLGCGQKDVPGVYTKVTNYLDWIRDNMRP

  • Molecular Weight

    Approximately 55-80 kDa, based on SDS-PAGE under reducing conditions.

  • Glycosylation

    Yes

  • Purity

    ≥ 95%, as determined by reducing SDS-PAGE.

Product Properties

Appearance

Lyophilized powder

Formulation

1.Lyophilized from a 0.22 μm filtered solution of 20 mM succinate, 4% trehalose, 4% mannitol, 0.2 mM CaCl2, 0.02% Tween 80, pH 4.5.
2.Lyophilized from a 0.22 μm filtered solution of 20 mM MES, 150 mM NaCl, pH 5.5.
Please refer to the lot-specific COA for specific buffer information.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O.

Storage & Stability

Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

References

Calculators

Reconstitution Calculator

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) Volume (to add to vial)
=
Mass (in vial) Mass (in vial)
÷
Desired Reconstitution Concentration Desired Reconstitution Concentration
Dilution Calculator

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

Concentration (start) Concentration (start)
×
Volume (start) Volume (start)
=
Concentration (final) Concentration (final)
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The Specific Activity Calculator Equation
  • Specific Activity (Unit/mg)
  • Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) Specific Activity (Unit/mg)
Unit/mg
= 106 ÷
Biological Activity (ED50) Biological Activity (ED50)
106 ÷
ng/mL
MOQ
Minimum order quantity
100 mg

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