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  5. CD38 Protein, Human (HEK293, Fc)

CD38 Protein, Human (HEK293, Fc)

Cat. No.: HY-P70022
COA Handling Instructions

The CD38 protein plays a key role in cell signaling, proficiently synthesizing cyclic ADP-ribose (cADPR) as a critical second messenger for glucose-induced insulin secretion. It also promotes the synthesis of the calcium mobilizer niacin-adenine dinucleotide phosphate (NAADP+). CD38 Protein, Human (HEK293, Fc) is the recombinant human-derived CD38 protein, expressed by HEK293 , with C-hFc labeled tag. The total length of CD38 Protein, Human (HEK293, Fc) is 258 a.a., with molecular weight of 75-90 kDa.

For research use only. We do not sell to patients.

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  • Biological Activity

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Description

The CD38 protein plays a key role in cell signaling, proficiently synthesizing cyclic ADP-ribose (cADPR) as a critical second messenger for glucose-induced insulin secretion. It also promotes the synthesis of the calcium mobilizer niacin-adenine dinucleotide phosphate (NAADP+). CD38 Protein, Human (HEK293, Fc) is the recombinant human-derived CD38 protein, expressed by HEK293 , with C-hFc labeled tag. The total length of CD38 Protein, Human (HEK293, Fc) is 258 a.a., with molecular weight of 75-90 kDa.

Background

The CD38 Protein assumes a pivotal role in cellular signaling, being a proficient synthesizer of cyclic ADP-ribose (cADPR), a recognized second messenger crucial for glucose-induced insulin secretion. Moreover, it facilitates the synthesis of the calcium mobilizer nicotinate-adenine dinucleotide phosphate, NAADP(+), derived from 2'-phospho-cADPR and nicotinic acid, as well as from NADP(+) and nicotinic acid. Operating at both pH 5.0 and pH 7.4, CD38 Protein exhibits a preference for transforming 2'-phospho-cADPR into NAADP(+) while selectively cleaving NADP(+) to cADPR and ADPRP rather than generating NADDP(+). Notably, it also showcases cADPR hydrolase activity, highlighting its multifaceted role in the dynamic regulation of these crucial signaling molecules. The integration of these activities underscores the significance of CD38 Protein in modulating cellular responses, particularly in the context of insulin secretion and calcium mobilization.

Biological Activity

Immobilized Human CD38 at 2 μg/mL (100 μL/well) can bind Anti-CD38 Antibody. The ED50 for this effect is 11.99 ng/mL, corresponding to a specific activity is 8.34×104 units/mg.

  • Immobilized Human CD38 at 2 μg/mL (100 μL/well) can bind Anti-CD38 Antibody, The ED50 for this effect is 11.99 ng/mL,corresponding to a specific activity is 8.34×104units/mg.
Species

Human

Source

HEK293

Tag

C-hFc

Accession

P28907 (V43-I300)

Gene ID

952  [NCBI]

Molecular Construction
N-term
CD38 (V43-I300)
Accession # P28907
hFc
C-term
Synonyms
rHuADP-ribosyl cyclase/cyclic ADP-ribose hydrolase 1, Fc; ADP-ribosyl cyclase 1; cyclic ADP-ribose hydrolase; CD38; T10
AA Sequence

VPRWRQQWSGPGTTKRFPETVLARCVKYTEIHPEMRHVDCQSVWDAFKGAFISKHPCNITEEDYQPLMKLGTQTVPCNKILLWSRIKDLAHQFTQVQRDMFTLEDTLLGYLADDLTWCGEFNTSKINYQSCPDWRKDCSNNPVSVFWKTVSRRFAEAACDVVHVMLNGSRSKIFDKNSTFGSVEVHNLQPEKVQTLEAWVIHGGREDSRDLCQDPTIKELESIISKRNIQFSCKNIYRPDKFLQCVKNPEDSSCTSEI

Molecular Weight

75-90 kDa

Purity
  • Greater than 95% as determined by reducing SDS-PAGE.
Appearance

Lyophilized powder.

Formulation

Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4.

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. 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
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.

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Activity Calculator

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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CD38 Protein, Human (HEK293, Fc)
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HY-P70022
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