BTK Protein, Human (Active, sf9, GST)

The BTK protein is a key non-receptor tyrosine kinase that is essential for B lymphocyte development and signaling. After BCR activation, BTK initiates a cascade reaction, phosphorylates PLCG2 and activates downstream pathways, affecting calcium mobilization and PKC activation. BTK Protein, Human (Active, sf9, GST) is the recombinant human-derived BTK protein, expressed by Sf9 insect cells, with N-GST labeled tag.

For research use only. We do not sell to patients.
  • Species: Human
  • Source: Sf9 insect cells
  • 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 BTK protein is a key non-receptor tyrosine kinase that is essential for B lymphocyte development and signaling. After BCR activation, BTK initiates a cascade reaction, phosphorylates PLCG2 and activates downstream pathways, affecting calcium mobilization and PKC activation. BTK Protein, Human (Active, sf9, GST) is the recombinant human-derived BTK protein, expressed by Sf9 insect cells, with N-GST labeled tag.

Background

BTK Protein, a non-receptor tyrosine kinase, is indispensable for B lymphocyte development, differentiation, and signaling. Upon antigen binding to the B-cell antigen receptor (BCR), BTK triggers a signaling cascade leading to B-cell activation, phosphorylating PLCG2 and initiating downstream pathways involving calcium mobilization and protein kinase C (PKC) activation. Serving as a platform for diverse signaling proteins, BTK is implicated in cytokine receptor signaling pathways and is crucial in innate and adaptive immunity, particularly within the Toll-like receptors (TLR) pathway. It plays a critical role in regulating TLR9 activation in splenic B-cells and induces the activity of NF-kappa-B, contributing to the transcriptional regulation of numerous genes. Additionally, BTK activates NLRP3 inflammasome assembly, phosphorylates transcription factor GTF2I, and is involved in apoptosis regulation, highlighting its multifaceted functions in immune response and cellular processes.

Technical Parameters

  • Species Human
  • Source Sf9 insect cells
  • Tag N-GST
  • Accession
  • Gene ID
  • Molecular Construction
    • N-term
    • GST
    • BTK (A2-S659)
      Accession # Q06187-1
    • C-term
  • Protein Length

    Full Length of Isoform-1

  • Synonyms

    BTK; Tyrosine-Protein Kinase BTK Isoform (Lacking Exon 13 To 17); Prev. AGMX1; Tyrosine-Protein Kinase BTK Isoform (Lacking Exon 14); Prev. IMD1; Tyrosine-Protein Kinase BTK Isoform 52; ATK; Tyrosine-Protein Kinase BTK Isoform 51; PSCTK1; Tyrosine-Protein Kinase BTK Isoform 65; XLA; Non-Specific Protein-Tyrosine Kinase; Bruton Agammaglobulinemia Tyrosine Kinase; Agammaglobulinaemia Tyrosine Kinase; Tyrosine-Protein Kinase BTK; Agammaglobulinemia Tyrosine Kinase; Bruton'S Tyrosine Kinase; BTK Kinase Deficient Isoform 8; B-Cell Progenitor Kinase; BTK Kinase Deficient Isoform 4; BPK; BTK Kinase Deficient Isoform 1; Dominant-Negative Kinase-Deficient Brutons Tyrosine Kinase Isoform 10; Tyrosine-Protein Kinase; Dominant-Negative Kinase-Deficient Brutons Tyrosine Kinase Isoform 8; IGHD3; Dominant-Negative Kinase-Deficient Brutons Tyrosine Kinase Isoform 1; AT; Tyrosine-Protein Kinase BTK Isoform (Lacking Exon 15 To 18); Bruton Tyrosine Kinase; Dominant-Negative Kinase-Deficient Brutons Tyrosine Kinase

  • AA Sequence

    AAVILESIFLKRSQQKKKTSPLNFKKRLFLLTVHKLSYYEYDFERGRRGSKKGSIDVEKITCVETVVPEKNPPPERQIPRRGEESSEMEQISIIERFPYPFQVVYDEGPLYVFSPTEELRKRWIHQLKNVIRYNSDLVQKYHPCFWIDGQYLCCSQTAKNAMGCQILENRNGSLKPGSSHRKTKKPLPPTPEEDQILKKPLPPEPAAAPVSTSELKKVVALYDYMPMNANDLQLRKGDEYFILEESNLPWWRARDKNGQEGYIPSNYVTEAEDSIEMYEWYSKHMTRSQAEQLLKQEGKEGGFIVRDSSKAGKYTVSVFAKSTGDPQGVIRHYVVCSTPQSQYYLAEKHLFSTIPELINYHQHNSAGLISRLKYPVSQQNKNAPSTAGLGYGSWEIDPKDLTFLKELGTGQFGVVKYGKWRGQYDVAIKMIKEGSMSEDEFIEEAKVMMNLSHEKLVQLYGVCTKQRPIFIITEYMANGCLLNYLREMRHRFQTQQLLEMCKDVCEAMEYLESKQFLHRDLAARNCLVNDQGVVKVSDFGLSRYVLDDEYTSSVGSKFPVRWSPPEVLMYSKFSSKSDIWAFGVLMWEIYSLGKMPYERFTNSETAEHIAQGLRLYRPHLASEKVYTIMYSCWHEKADERPTFKILLSNILDVMDEES

  • Predicted Molecular Mass

    101.9 kDa

  • Molecular Weight

    Approximately 102 kDa, based on SDS-PAGE under reducing conditions.

  • Purity

    ≥ 85%, as determined by reducing SDS-PAGE.

Product Properties

Appearance

Solution.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

Please use rapid thawing with running water to thaw the protein.

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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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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