Retinol Binding Protein from human urine
SIGMA/R9388 - buffered aqueous solution
Synonym: CRBP; Cellular retinol binding protein; RBP; RBP-1; Retinol Binding Protein I
MDL Number: MFCD00165761
Product Type: Chemical
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| assay | ≥85% (SDS-GE) |
| biological source | human urine |
| form | buffered aqueous solution |
| Quality Level | 200  |
| shipped in | dry ice |
| storage temp. | −20°C |
| technique(s) | cell culture | embryo: suitable |
| transfection: suitable | |
| UniProt accession no. | P09455  |
| Application: | Retinol Binding Protein from human urine has been used: • as one of the protein in microinjecting mesencephalic cavity of chicken eggs to monitor embryonic cerebrospinal fluid/embryonic serum protein transfer • as an additive in basal medium for RNA transfection experiments • in the antibody-derivatized affinity pipettes preparation for the capture of affinity proteins |
| Biochem/physiol Actions: | Inflammation induced by lipopolysaccharide (LPS) exposure caused a reduction in the level of retinol binding protein produced by the liver. |
| Biochem/physiol Actions: | Retinol Binding Protein (RBP) is a specific protein for the transport of vitamin A. The apo-RBP, formed after delivering retinol to the tissues is catabolized by the kidney. The plasma concentration of RBP is less in diabetes mellitus patients. RBP binds to the carrier protein transerythrin, to prevent its loss during glomerular filtration. RBP is implicated in initial neurogenesis and neuroepithelial cell proliferation. RBP is responsible for blepharophimosis syndrome (BPES). |
| General description: | Retinol Binding Protein (RBP) is a member of lipocalin superfamily. The normal concentration of RBP in serum is 40 to 50 μg/mL and has a molecular weight of 21 kDa. It has a turnover rate of 4 to 24 h. RBP is produced in the liver in response to retinol binding trigger. It is also produced in kidney, sertoli cells of testis. RBP contains a single globular domain and a highly conserved N-terminal region. It has eight antiparallel β sheets in the centre which binds retinol. In human chromosome, the gene encoding RBP is localised at 3q23. |
| Physical form: | Solution in 10 mM sodium phosphate, pH 7.4, 150 mM NaCl, and 0.05% NaN3 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 2 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥85% (SDS-GE) |
| Storage Temp. | −20°C |
| UNSPSC | 12352202 |