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

Cat. No.: HY-P73605
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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. The total length of TIM-1/KIM-1/HAVCR Protein, Human (HEK293) is 270 a.a., with molecular weight of 90-110 kDa.

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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. The total length of TIM-1/KIM-1/HAVCR Protein, Human (HEK293) is 270 a.a., with molecular weight of 90-110 kDa.

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].

Species

Human

Source

HEK293

Tag

Tag Free

Accession

AAC39862 (S21-G290)

Gene ID
Molecular Construction
N-term
TIM-1 (S21-G290)
Accession # AAC39862
C-term
Synonyms
Hepatitis A virus cellular receptor 1; HAVcr-1; KIM-1; TIM-1; CD365; HAVCR1
Molecular Weight

90-110 kDa

Purity

Greater than 80% as determined by reducing SDS-PAGE.

Appearance

Lyophilized powder.

Formulation

Lyophilized from a 0.2 μm filtered solution of 50 mM Tris, 100 mM NaCl, pH 8.0. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization.

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. 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.

Documentation

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

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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The reconstitution calculator equation

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

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

The dilution calculator equation

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

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

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

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TIM-1/KIM-1/HAVCR Protein, Human (HEK293)
Cat. No.:
HY-P73605
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