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TIM-1/KIM-1/HAVCR Protein, Human (HEK293)

TIM-1/KIM-1/HAVCR Protein, Mouse (HEK293, His) belongs to a family of immunoglobulin-like domain-containing transmembrane proteins is widely accepted to be the receptor for hepatitis A virus (HAV), an unusual, hepatotropic human picornavirus. TIM1 (HAVCR1) facilitates attachment of a variety of enveloped viruses, including filoviruses, alphaviruses, and flaviviruses, that display highly conserved phosphatidylserine (PtdSer) on their surface. TIM1 undergoes tyrosine phosphorylation of its C-terminal cytoplasmic tail. TIM-1 can function as a co-stimulatory molecule for T cell activation. TIM-1/KIM-1/HAVCR Protein, Human (HEK293) is the recombinant human-derived TIM-1/KIM-1/HAVCR protein, expressed by HEK293 , with tag free.

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.
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Biological Activity

Description

TIM-1/KIM-1/HAVCR Protein, Mouse (HEK293, His) belongs to a family of immunoglobulin-like domain-containing transmembrane proteins is widely accepted to be the receptor for hepatitis A virus (HAV), an unusual, hepatotropic human picornavirus. TIM1 (HAVCR1) facilitates attachment of a variety of enveloped viruses, including filoviruses, alphaviruses, and flaviviruses, that display highly conserved phosphatidylserine (PtdSer) on their surface. TIM1 undergoes tyrosine phosphorylation of its C-terminal cytoplasmic tail. TIM-1 can function as a co-stimulatory molecule for T cell activation[1][2][3]. TIM-1/KIM-1/HAVCR Protein, Human (HEK293) is the recombinant human-derived TIM-1/KIM-1/HAVCR protein, expressed by HEK293 , with tag free.

Background

TIM1 belongs to a family of immunoglobulin-like domain-containing transmembrane proteins that include three members in humans (human TIM1, TIM3, and TIM4) and eight members in mice (murine TIM1 to TIM8), of which the human TIM1, TIM3, and TIM4 are direct orthologs of murine TIM1, TIM3, and TIM4, respectively. These proteins are expressed on the cell surface, with their N-terminal immunoglobulin-like (IgV) and mucin domains present in the extracellular milieu and their C-terminal sequences in the cytoplasm. An important feature of all TIM proteins is a highly conserved phosphatidylserine (PtdSer)-binding pocket in the IgV domain that recognizes PtdSer on the outer membrane leaflet of apoptotic cells, facilitating their uptake by phagocytic cells[1].
TIM-1 is a type I membrane protein with an IgV domain followed by a heavily glycoslyated mucin domain, a transmembrane domain and an intracellular cytoplasmic tail with one tyrosine phosphorylation motif. TIM-1 can function as a co-stimulatory molecule for T cell activation. Cross-linking Tim-1 with antibodies, in conjunction with TCR and CD28 stimulation, enhances the proliferation of CD4+ T cells. over-expression of Tim-1 leads to NFAT/AP-1 transcriptional activation, dependent on Y276 in the cytoplasmic tail[2].

Technical Parameters

  • Species Human
  • Source HEK293
  • Tag Tag Free
  • Accession

    AAC39862 (S21-G290)

  • Gene ID
    26762  [NCBI]
  • Molecular Construction
    • N-term
    • TIM-1 (S21-G290)
      Accession # AAC39862
    • C-term
  • Protein Length

    Partial Extracellular Domain

  • Synonyms

    HAVCR1; T-Cell Membrane Protein 1; Hepatitis A Virus Cellular Receptor 1; TIMD-1; TIM-1; KIM-1; TIMD1; TIM; TIM1; T-Cell Immunoglobulin And Mucin Domain-Containing Protein 1; KIM1; T Cell Immunoglobin Domain And Mucin Domain Protein 1; Kidney Injury Molec

  • AA Sequence

    SVKVGGEAGPSVTLPCHYSGAVTSMCWNRGSCSLFTCQNGIVWTNGTHVTYRKDTRYKLLGDLSRRDVSLTIENTAVSDSGVYCCRVEHRGWFNDMKITVSLEIVPPKVTTTPIVTTVPTVTTVRTSTTVPTTTTVPTTTVPTTMSIPTTTTVPTTMTVSTTTSVPTTTSIPTTTSVPVTTTVSTFVPPMPLPRQNHEPVATSPSSPQPAETHPTTLQGAIRREPTSSPLYSYTTDGNDTVTESSDGLWNNNQTQLFLEHSLLTANTTKG

  • Predicted Molecular Mass

    30 kDa

  • Molecular Weight

    Approximately 90-110 kDa, based on SDS-PAGE under reducing conditions,due to the glycosylation.

  • Glycosylation

    Yes

  • Purity

    ≥ 80%, as determined by reducing SDS-PAGE.

Product Properties

Appearance

Lyophilized powder.

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.

Calculators

Reconstitution Calculator

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

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Dilution Calculator

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

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Measured by its ability to inhibit anti-CD3-induced proliferation of stimulated CTLL-2 mouse cytotoxic T cells. The ED50 this effect is 0.8023 μg/ml, corresponding to a specific activity is 1246.42 units/mg.

Assay Types
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