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Key Documents

C4874

Sigma-Aldrich

Calmodulin bovine

recombinant, expressed in E. coli, lyophilized powder, ≥98% (SDS-PAGE)

Synonyma:

CaM, Phosphodiesterase 3:5-cyclic nucleotide activator, Phosphodiesterase 3′:5′-cyclic nucleotide activator

Přihlásitk zobrazení cen stanovených pro organizaci a smluvních cen
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About This Item

MDL number:
MFCD00131869
UNSPSC Code:
12352202
NACRES:
NA.26

biological source

bovine

Quality Level

200

recombinant

expressed in E. coli

assay

≥98% (SDS-PAGE)

form

lyophilized powder

mol wt

Mw 19000.9 by amino acid sequence

composition

Protein, ≥85%

UniProt accession no.

P62157

storage temp.

−20°C

Gene Information

bovine ... CALM(100297344)

General description

Calmodulin from bovine takes up a dumb-bell-structure. Two calcium binding EF hand loops, antiparallel β-sheet and three α-helices comprises a lobe. It has a central helix connecting the lobes. Calmodulin can bind four calcium molecules in a cooperative interaction pattern.

Application

Calmodulin bovine has been used inin vitro phosphorylation assay of recombinant retinoic acid-inducible gene I protein. It has also been used in the endoprotease Glu-C proteolysis and deamidation studies.

Biochem/physiol Actions

Ca2+ binding protein that is required for activation of cyclic nucleotide-dependent phosphodiesterase. It is also a cofactor/activator of nitric oxide synthase, calcineurin, and many kinases including ATPase, myosin light chain kinase, and CAM kinase I, II, and III. It mediates ryanodine receptor activation by cyclic ADP-ribose and is involved in intracellular Ca2+ homeostasis.
Calmodulin from bovine undergoes conformational changes upon calcium binding. It binds to sphingosylphosphorylcholine and inhibit calcineurin and phosphodiesterase enzymes.

Physical properties

Sequence:
MGSSHHHHHHSSGLVPRGSHMADQLTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMARKMKDTDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEEVDEMIREADIDGDGQVNYEEFVQMMTAK

Preparation Note

Produced using animal component-free materials.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Osvědčení o analýze (COA)

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Miljan Simonovic et al.
The Journal of biological chemistry, 281(45), 34333-34340 (2006-09-02)
AlphaII-spectrin is a major cortical cytoskeletal protein contributing to membrane organization and integrity. The Ca2+-activated binding of calmodulin to an unstructured insert in the 11th repeat unit of alphaII-spectrin enhances the susceptibility of spectrin to calpain cleavage but abolishes its
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Nature structural & molecular biology, 20(9), 1085-1092 (2013-07-31)
Calmodulin (CaM) is a universal regulatory protein that communicates the presence of calcium to its molecular targets and correspondingly modulates their function. This key signaling protein is important for controlling the activity of hundreds of membrane channels and transporters. However
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Intraprotein electron transfer between the FMN and heme domains in endothelial nitric oxide synthase holoenzyme.
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