| Description | Esterase, also known as carboxyl ester hydrolases, are a member of the hydrolytic enzyme superfamily. Esterase is widely present in organisms, such as helping to digest esters in food in the digestive system, and also participating in biological processes such as fatty acid metabolism within cells. Esterase, also known as carboxyl ester hydrolases, are a member of the hydrolytic enzyme superfamily. Esterase is widely present in organisms, such as helping to digest esters in food in the digestive system, and also participating in biological processes such as fatty acid metabolism within cells. Esterase is widely used in industry, such as in the production of biodiesel, food additives, and cosmetics. ≥15U /mg powder, ≥100 U/mg protein. Source: Porcine liver.Properties The molecular weight of esterase monomer is approximately 66kDa. It is a serine enzyme with two active sites on each molecule, which dissociates into active half molecules in the presence of dilute acid or concentrated saltStabilityEsterase acts on water-soluble carboxylic acid esters containing short chain fatty acids. Its function comes from the catalytic triad of Ser, His, and Asp/Glu, which is stable in the form of a triad under low temperature and low pH conditions.Application1、Used for kinetic resolution and asymmetric synthesis in organic chemistry.2、Used to reveal fluorescence in the UV visible spectrum.3、Used in pharmaceutical and industrial applications to catalyze the hydrolysis of pentaacetyl catechins and epicatechin.4、It is used to develop an alternative experimental scheme based on gel for screening bead binding catalytic activity in aqueous media.Attention1、 Avoid contact with skin and eyes.2、 For your safety and health, please wear Lab coat and disposable gloves... Read More | Inquire | Inquire | Purity:>95%, by SDS-PAGE visualized with Coomassie® Blue StainingDescription:Human B7 homolog 3 (B7-H3) is a member of the B7 family of immune proteins that provide signals for the regulation of immune responses. Other family members include B7-1, B7-2, B7-H1/PD-L1, B7-H2, and PD-L2. B7 Purity:>95%, by SDS-PAGE visualized with Coomassie® Blue StainingDescription:Human B7 homolog 3 (B7-H3) is a member of the B7 family of immune proteins that provide signals for the regulation of immune responses. Other family members include B7-1, B7-2, B7-H1/PD-L1, B7-H2, and PD-L2. B7 family proteins are type I transmembrane immunoglobulin (Ig) superfamily members that contain extracellular Ig V‑like and Ig C‑like domains with a short cytoplasmic tail. Among the family members there is about 20 - 40% amino acid (aa) sequence identity. B7-H3 was initially reported to be a 316 aa type I transmembrane precursor protein that contained a signal sequence, an extracellular region with one V‑type and one C‑type Ig domain, a transmembrane segment and a short cytoplasmic tail. Subsequent studies have identified a second 110 kDa form whose precursor is 534 aa in length. Termed 4IgB7-H3 or B7-H3b, this molecule has two additional Ig-like domains (one V‑type and one C‑type) and shows a ubiquituous expression pattern. It would appear that the human 4Ig form is the principal, if not the only form of B7-H3. Its precursor contains a 26 aa signal sequence, a 435 aa extracellular region, a 31 aa transmembrane domain, and a 42 aa cytoplasmic tail. The four Ig-like domains alternate between V‑type and C‑type, and apparently are the consequence of a V‑C type tandem duplication. B7-H3b is expressed on dendritic cells as well as activated T, B and NK cells. The mouse gene differs from that of human in that it cannot code for four Ig-like domains; only a V‑type:C‑type pair. Human B7-H3b binding to an undefined receptor has shown to be inhibitory to NK cell illing and cytokine release. It also seems to be required for late stage osteoblast differentiation... Read More | Purity:>90%, by SDS-PAGE visualized with Coomassie® Blue Staining.Description：SOD2 is part of the iron/manganese superoxide dismutase family. It encodes a mitochondrial protein that forms a homotetramer and binds one manganese ion per subunit. SOD2 binds to the superoxide byproducts Purity:>90%, by SDS-PAGE visualized with Coomassie® Blue Staining.Description：SOD2 is part of the iron/manganese superoxide dismutase family. It encodes a mitochondrial protein that forms a homotetramer and binds one manganese ion per subunit. SOD2 binds to the superoxide byproducts of oxidative phosphorylation and converts them to hydrogen peroxide and diatomic oxygen. Mutations in SOD2 gene have been associated with idiopathic cardiomyopathy (IDC), premature aging, sporadic motor neuron disease, and cancer. SOD2 destroys radicals which are usually produced within the cells and which are toxic to biological systems... Read More |