Lactoferrin from human milk
SIGMA/61326 - ~80% (GE)
CAS Number: 936541-36-5
MDL Number: MFCD00164307
Product Type: Chemical
| assay | ~80% (GE) |
| biological source | human milk |
| cation traces | Fe: ≤400 mg/kg |
| form | solid |
| InChI | 1S/C35H53N9O12/c1-16(2)27 |
| InChI key | QCBUWCQOKPLTDZ-PKRULZLPSA |
| mol wt | 82.4 kDa |
| Quality Level | 100  |
| solubility | H2O: 1 mg/mL, clear to very faintly hazy, colorless to faintly yellow |
| storage temp. | 2-8°C |
| UniProt accession no. | P02788  |
| Application: | Lactoferrin was used for development of lactoferrin immunosensor. |
| Biochem/physiol Actions: | Lactoferrin is an iron binding protein. It is structurally similar to transferrin, the plasma iron transport protein; but lactoferrin has a much higher affinity for iron (250 fold). It is very abundant in colostrum and small amounts can also be found in tears, saliva, mucous secretions and in the secondary granules of neutrophils. It is made by mucosal epithelium and neutrophils and is released by these cells in response to inflammatory stimuli. Bacterial growth is inhibited by its ability to sequester iron and also permeabilize bacterial cell walls by binding to lipopolysaccharides through its N-terminus. Lactoferrin can inhibit viral infection by binding tightly to the viral envelope protein. This prevents cell-virus fusion by blocking the binding domain. Lactoferrin appears to activate host defense systems in part by stimulating the release of interleukin-8, a neutrophil activator. It may also be involved in antibody and interleukin synthesis, lymphocyte proliferation and complement activation. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ~80% (GE) |
| Storage Temp. | 2-8°C |
| UNSPSC | 12352202 |