LSM4 Protein, Human (His)

The LSM4 protein plays a crucial role in pre-mRNA splicing, participating in the U4/U6-U5 tri-snRNP complex during spliceosome assembly, and as a component of the precatalytic spliceosome (spliceosome B complex).In the heptameric LSM2-8 complex, LSM4 specifically binds to the 3' U region of U6 snRNA.LSM4 Protein, Human (His) is the recombinant human-derived LSM4 protein, expressed by E.coli , with N-6*His labeled tag.

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  • Species: Human
  • Source: E. coli
  • Speicherung:
    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.
  • Biologische Aktivität
  • Technical Parameters
  • Product Properties
  • Documentation
  • Help & FAQs

Biologische Aktivität

Beschreibung

The LSM4 protein plays a crucial role in pre-mRNA splicing, participating in the U4/U6-U5 tri-snRNP complex during spliceosome assembly, and as a component of the precatalytic spliceosome (spliceosome B complex).In the heptameric LSM2-8 complex, LSM4 specifically binds to the 3' U region of U6 snRNA.LSM4 Protein, Human (His) is the recombinant human-derived LSM4 protein, expressed by E.coli , with N-6*His labeled tag.

Background

LSM4 protein plays a crucial role in pre-mRNA splicing, functioning as a key component of the U4/U6-U5 tri-snRNP complex involved in spliceosome assembly and the precatalytic spliceosome (spliceosome B complex). Alongside LSM2, LSM3, LSM5, LSM6, LSM7, and LSM8, LSM4 forms the heptameric LSM2-8 complex, which specifically binds to the 3'-terminal U-tract of U6 snRNA. This complex is an integral part of the U4/U6-U5 tri-snRNP complex, a fundamental building block in the intricate machinery orchestrating spliceosome assembly. The U4/U6-U5 tri-snRNP complex comprises various snRNAs and associated proteins, underscoring LSM4's essential contribution to the complex and highly regulated process of pre-mRNA splicing.

Technical Parameters

  • Species Human
  • Source E. coli
  • Tag N-6*His
  • Accession
  • Gene ID
  • Molecular Construction
    • N-term
    • 6*His
    • LSM4 (M1-Q139)
      Accession # Q9Y4Z0
    • C-term
  • Protein Length

    Full Length

  • Synonyms

    U6 snRNA-Associated Sm-Like Protein LSm4; Glycine-Rich Protein; GRP; LSM4

  • AA Sequence

    MLPLSLLKTAQNHPMLVELKNGETYNGHLVSCDNWMNINLREVICTSRDGDKFWRMPECYIRGSTIKYLRIPDEIIDMVKEEVVAKGRGRGGLQQQKQQKGRGMGGAGRGVFGGRGRGGIPGTGRGQPEKKPGRQAGKQ

  • Predicted Molecular Mass

    17.5 kDa

  • Molecular Weight

    Approximately 18 kDa, based on SDS-PAGE under reducing conditions.

  • Reinheit

    ≥ 90%, as determined by reducing SDS-PAGE.

Product Properties

Appearance

Lyophilized powder.

Formulation

Lyophilized from a 0.22 μm filtered solution of 20 mM Tris-HCl, 100 mM NaCl, 1 mM DTT, 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.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

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.

Versand

Room temperature in continental US;may vary elsewhere.

Calculators

Reconstitution Calculator

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

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

Konzentration (Stammlösung) × Volumen (Stammlösung) = Konzentration (Ziellösung) × Volumen (Ziellösung)

Konzentration (Stammlösung)
×
Volumen (Stammlösung)
=
Konzentration (Ziellösung)
×
Volumen (Ziellösung)
The Specific Activity Calculator Equation
  • Specific Activity (Unit/mg)
  • Biological Activity (ED50)

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

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