Featured Service

Strategy design for effective protein expression and purification

    Novoprotein strategy design team possesses years of experience in helping customer to determine the right strategies for their recombinant

Protein Expression and Purification

In current economic environment, scientists are facing unprecedented challenging. This requires scientists to optimize their precious resource. Recombinant p

E. coli Expression System

The E. coli expression system is the most widely used expression system for recombinant proteins. Advantages of using E. coli for p

more

Highlight Products

Human LBP-32/MGR is a repressor of the P450scc in human choriocarcinoma cell line JEG-3.

Steroid hormones regulate a wide range of physiologic functions in humans. The cholesterol side-chain cleavage enzyme P450scc regulates the initial step of biosynthesis of all steroid hormones. We investigated the expression of P450scc by studying a potential regulator of P450scc, LBP-32/MGR. Using a Northern blot, we found that LBP-32/MGR mRNA was expressed mainly in the human placenta. Using radiation hybrid mapping, we identified LBP-32/MGR on human chromosome 2p25. Recombinant LBP-32/MGR protein bound preferentially to a DNA fragment from the promoter of P450scc in vitro and exhibited clear nuclear localization in transfected cells. Luciferase reporter gene assays showed that LBP-32/MGR specifically repressed transcriptional activation of the human P450scc promoter. Because placental P450scc expression is essential for pregnancy and steroid biosynthesis, the placental expression and transcriptional repressor activity of LBP-32/MGR in JEG-3 cells suggest it has a role as a transcriptional modulator of steroid biosynthesis.

Placenta2007 Feb-Mar,28(2-3).

Protein Name:LBP
Gene Name:LBP

Cat.No.Price/SizeQtyCart
C370

Recombinant Human LBP
(CatNo. C370)

Recombinant Human Lipopolysaccharide-Binding Protein/LBP produced by transfected human cells is a secreted protein with sequence (Ala26-Val481) of human LBP fused with a polyhistidine tag at the C-terminus.

Lipopolysaccharide binding protein (LBP) is a plasma protein, belongs to a member of structurally and functionally related proteins which includes bactericidal permeability-increasing protein (BPI), plasma cholesteryl ester transfer protein (CETP) and phospholipid transfer protein (PLTP). It is involved in the acute-phase immunologic response to gram-negative bacterial infections. In cooperation with BPI. LBP binds LPS and interacts with the CD14 receptor, most likely playing a role in regulating LPS-dependent monocyte responses. Studies suggest that LBP is necessary for the rapid acute-phase response to LPS but not for the clearance of LPS from circulation. Finally, t The LBP gene is found on chromosome 20, directly downstream of the BPI gene.