Catalogue number
CYT-413
Synonyms
Resistin-like beta, RELM beta, Cysteine-rich secreted protein FIZZ2, Colon and small intestine-specific cysteine-rich protein, Cysteine-rich secreted protein A12-alpha-like 1, Colon carcinoma-related gene protein, RELM-b, XCP2, HXCP2.
Introduction
RELM-beta (Resistin-Like Molecule-beta) is a member of a recently identified family of secreted proteins containing a conserved cystein-rich C-terminus. The RELM family consists of resistin (also called FIZZ3), RELM-alfa (FIZZ1), RELM-beta (FIZZ2) and RELM-gamma. Only resisistin and RELM-beta were found in humans whereas all four RELM family members were identified in rodents.
RELM-beta appears to be produced as a homodimer exclusively by intestinal goblet cells and can be found in high quantities in stool. Remarkably, stool of germ-free mice displaying sterile intestinal tract does not contain RELM-beta until bacterial colonization takes place after pathogen-free mice entered natural environment. Some, but not all, colon carcinoma cell lines secrete RELM-beta into the cell culture supernatant.
The physiological function of RELM-beta is not known. High doses of recombinant RELM-beta showed hyperglycemic effects including lowered glucose disposal and increased hepatic glucose production in mice.
Description
Mouse RELM-b Recombinant produced in E.Coli is a monomeric, non-glycosylated, polypeptide chain containing 83 amino acids and having a molecular mass of 8.9kDa.
The Mouse RETNLB is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Physical Appearance
Brownish lyophilized powder.
Formulation
The protein was lyophilized from a concentrated (1mg/ml) protein solution containing 10mM Acetic Acid with 2:1 mannitol to protein.
Solubility
Reconstitute at 0.1 mg/ml with sterile pyrogen free water.
Stability
Lyophilized RETNLB is stable at -20°C. After reconstitution the protein should be kept at all times at -20°C. It is recommended to add a carrier protein (0.1% HSA or BSA) for long term storage.
Purity
Greater than 97% as determined by SDS-PAGE.
Amino acid sequence
MQCSFESLVD QRIKEALSRQ EPKTISCTSV TSSGRLASCP AGMVVTGCAC GYGCGSWDIR NGNTCHCQCS VMDWASARCC RMA.
Safety Data Sheet
Usage
ProSpecs products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
