Recombinant Human Motilin Protein (C-6His)

Name: Recombinant Human Motilin Protein (C-6His)
Brand: Beta LifeScience
SKU: BL-0919NP
Availability: InStock

BL-0919NP: Greater than 90% as determined by reducing SDS-PAGE. (QC verified)

Collections: Cytokines and growth factors, Other cytokines, Recombinant proteins

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Product Overview

Description	Recombinant Human Motilin is produced by our Mammalian expression system and the target gene encoding Phe26-Lys115 is expressed with a 6His tag at the C-terminus.
Accession	P12872
Synonym	Promotilin; Motilin-associated peptide; MLN
Gene Background	Promotilin is a secreted protein that belongs to the motilin family. Human Promotilin cDNA encodes a 115 amino acid (aa) precursor that contains a 25 aa signal peptide and a 90 aa with motilin and motilin-associated peptide. It plays an important role in the regulation of interdigestive gastrointestinal motility and indirectly causes rhythmic contraction of duodenal and colonic smooth muscle.
Molecular Mass	11.4 KDa
Apmol Mass	15-17 KDa, reducing conditions
Formulation	Lyophilized from a 0.2 μm filtered solution of 20mM PB, 150mM NaCl, pH 7.4.
Endotoxin	Less than 0.1 ng/µg (1 EU/µg) as determined by LAL test.
Purity	Greater than 90% as determined by reducing SDS-PAGE. (QC verified)
Biological Activity	Not tested
Reconstitution	Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100μg/ml. Dissolve the lyophilized protein in distilled water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
Storage	Lyophilized protein should be stored at ≤ -20°C, stable for one year after receipt. Reconstituted protein solution can be stored at 2-8°C for 2-7 days. Aliquots of reconstituted samples are stable at ≤ -20°C for 3 months.
Shipping	The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature listed below.
Usage	For Research Use Only

Target Details

Target Function	Plays an important role in the regulation of interdigestive gastrointestinal motility and indirectly causes rhythmic contraction of duodenal and colonic smooth muscle.
Subcellular Location	Secreted.
Protein Families	Motilin family
Database References	HGNC: 7141 OMIM: 158270 KEGG: hsa:4295 STRING: 9606.ENSP00000388825 UniGene: Hs.2813

Gene Functions References

Hemodialysis improves upper GI symptoms and gastric slow waves in CKD patients. An increase in ghrelin and a decrease in GLP-1 might be involved in the HD-induced improvement in gastric slow waves. PMID: 28566304
motilin-induced phase III contractions signal hunger in healthy subjects and that this system is disturbed in morbidly obese patients--{REVIEW} PMID: 26660537
Motilin stimulates growth hormone secretion and regulates interdigestive migrating contractions and fasting motor patterns in the gastrointestinal tract. [REVIEW] PMID: 22632857
Motilin may directly influence adipocyte functions by stimulating energy storage. PMID: 21771971
Ghrelin covaried with motilin in plasma in irritable bowel syndrome (IBS) but not in plasma from healthy subjects. This suggests the two peptides act together in IBS. PMID: 20338210
Plasma levels of motilin were studied in 16 untreated Celiac disease patients and in an age-matched control group of 18 healthy subjects by radioimmunoassay and by high-performance liquid chromatography (HPLC). PMID: 12732349
Ghrelin and motilin are cosecreted from a prominent endocrine cell population in the small intestine. PMID: 17595255
The abnormal excretion of hormonal factors is closely related to gallstone formation PMID: 18234640
About 35.9% of the patients with a T tube after cholecystectomy and choledochotomy have duodenal-biliary reflux. Most of them have sphincter of Oddi hypomotility and the decreased level of plasma motilin and serum gastrin. PMID: 18609694

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.