MAPKSP1 Protein, Human (His)

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The MAPKSP1 protein, also known as porphobilinogen deaminase (HMBS), is crucial in the heme biosynthetic pathway and catalyzes the sequential polymerization of four porphobilinogen molecules to form hydroxymethyl bixane. The process begins with the assembly of the dipyrromethane cofactor of porphobilinogen or preuroporphyrinogen. MAPKSP1 Protein, Human (His) is the recombinant human-derived MAPKSP1 protein, expressed by E. coli , with N-6*His labeled tag.

For research use only. We do not sell to patients.
  • Species: Human
  • Source: E. coli
  • Storage:
    Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.
  • Biological Activity
  • Technical Parameters
  • Product Properties
  • Documentation
  • Help & FAQs

Biological Activity

Description

The MAPKSP1 protein, also known as porphobilinogen deaminase (HMBS), is crucial in the heme biosynthetic pathway and catalyzes the sequential polymerization of four porphobilinogen molecules to form hydroxymethyl bixane. The process begins with the assembly of the dipyrromethane cofactor of porphobilinogen or preuroporphyrinogen. MAPKSP1 Protein, Human (His) is the recombinant human-derived MAPKSP1 protein, expressed by E. coli , with N-6*His labeled tag.

Background

HMBS, also known as Porphobilinogen deaminase, plays a crucial role in the heme biosynthetic pathway by catalyzing the sequential polymerization of four molecules of porphobilinogen, resulting in the formation of hydroxymethylbilane, also referred to as preuroporphyrinogen. The catalytic process commences with the assembly of the dipyrromethane cofactor, formed either from two molecules of porphobilinogen or from preuroporphyrinogen, by the apoenzyme. The covalently linked cofactor serves as a primer, orchestrating the assembly of the tetrapyrrole product around it. In the final step of catalysis, the product, preuroporphyrinogen, is released, while the cofactor remains bound to the holodeaminase intact, highlighting the intricate and essential role of HMBS in the synthesis of heme.

Technical Parameters

  • Species Human
  • Source E. coli
  • Tag N-6*His
  • Accession
  • Gene ID
  • Molecular Construction
    • N-term
    • 6*His
    • MAPKSP1 (M1-S124)
      Accession # Q9UHA4
    • C-term
  • Protein Length

    Full Length

  • Synonyms

    LAMTOR3; Mitogen-Activated Protein Kinase Scaffold Protein 1; Prev. MAP2K1IP1; MAPK Scaffold Protein 1; Prev. MAPKSP1; Mitogen-Activated Protein Kinase Kinase 1-Interacting Protein 1; Ragulator3; MEK Binding Partner 1; MAPBP; MEK-Binding Partner 1; MP1; M

  • AA Sequence

    MADDLKRFLYKKLPSVEGLHAIVVSDRDGVPVIKVANDNAPEHALRPGFLSTFALATDQGSKLGLSKNKSIICYYNTYQVVQFNRLPLVVSFIASSSANTGLIVSLEKELAPLFEELRQVVEVS

  • Predicted Molecular Mass

    15.8 kDa

  • Molecular Weight

    Approximately 15 kDa, based on SDS-PAGE under reducing conditions.

  • Purity

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

Product Properties

Appearance

Solution

Formulation

Supplied as a 0.22 μm filtered solution of 20 mM Tris-HCl, 100 mM NaCl, 5 mM DTT, 30% glycerol, pH 8.0.
Note: For SPR assay, please replace the buffer. Primary amine components (e.g., Tris, imidazole) can affect protein-coupled chips.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Storage & Stability

Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.

Shipping

Shipping with dry ice.

Calculators

Reconstitution Calculator

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

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=
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Desired Reconstitution Concentration Desired Reconstitution Concentration
Dilution Calculator

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