Recombinant Human Calumenin/CALU

Instruction Manual!

Product name:	Recombinant Human Calumenin/CALU
Source:	Human Cells
Purity:	Greater than 95% as determined by reducing SDS-PAGE.
Buffer Formulation:	Lyophilized from a 0.2 μm filtered solution of 20mM PB,150mM NaCl,pH7.4.
Applications:	Applications:SDS-PAGE; WB; ELISA; IP.
Storage:	Avoid repeated freeze/thaw cycles. Store at 2-8 oC for one month. Aliquot and store at -80 oC for 12 months.
UOM:	100ug/50ug/200ug/1mg/1g

Source	Human Cells
Description	Recombinant Human Calumenin is produced by our Mammalian expression system and the target gene encoding Lys20-Phe315 is expressed with a 6His tag at the C-terminus.
Names	Calumenin, Crocalbin, IEF SSP 9302, CALU
Accession #	O43852
Formulation	Lyophilized from a 0.2 μm filtered solution of 20mM PB,150mM NaCl,pH7.4.
Shipping	The product is shipped at ambient temperature.
Reconstitution	Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100 μg/ml. Dissolve the lyophilized protein in ddH2O. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
Storage	Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
Purity	Greater than 95% as determined by reducing SDS-PAGE.
Endotoxin	Less than 0.1 ng/µg (1 IEU/µg) as determined by LAL test.
Amino Acid Sequence	KPTEKKDRVHHEPQLSDKVHNDAQSFDYDHDAFLGAEEAKTFDQLTPEESKERLGKIVSKIDGDK DGFVTVDELKDWIKFAQKRWIYEDVERQWKGHDLNEDGLVSWEEYKNATYGYVLDDPDPDDGFNY KQMMVRDERRFKMADKDGDLIATKEEFTAFLHPEEYDYMKDIVVQETMEDIDKNADGFIDLEEYI GDMYSHDGNTDEPEWVKTEREQFVEFRDKNRDGKMDKEETKDWILPSDYDHAEAEARHLVYESDQ NKDGKLTKEEIVDKYDLFVGSQATDFGEALVRHDEFVDHHHHHH
Background	Calumenin is a secreted calcium-binding protein that belongs to the CREC family. Calumenin contains six EF-hand domains and is expressed at high levels in the heart, placenta and skeletal muscle. Human Calumenin is synthesized as a 315 amino acid precursor that contains a 19 amino acid signal sequence, and a 296 amino acid mature chain. Calumenin localizes to the endoplasmic reticulum (ER) and sarcoplasmic reticulum (SR) of mammalian tissues which plays a role in ER functions as protein folding and sorting. Calumenin is involved in the regulation of vitamin K-dependent carboxylation of multiple N-terminal glutamate residues. It seems to inhibit γ-carboxylase GGCX.