Recombinant Human Phospholipid transfer protein (PLTP)

Uniprot Id

P55058

Target Species

Human

Target Name

PLTP

Target Full Name

Phospholipid transfer protein

Target Function

Mediates the transfer of phospholipids and free cholesterol from triglyceride-rich lipoproteins (low density lipoproteins or LDL and very low density lipoproteins or VLDL) into high-density lipoproteins (HDL) as well as the exchange of phospholipids between triglyceride-rich lipoproteins themselves. Facilitates the transfer of a spectrum of different lipid molecules, including diacylglycerol, phosphatidic acid, sphingomyelin, phosphatidylcholine, phosphatidylinositol, phosphatidylglycerol, cerebroside and phosphatidyl ethanolamine. Plays an important role in HDL remodeling which involves modulating the size and composition of HDL. Also plays a key role in the uptake of cholesterol from peripheral cells and tissues that is subsequently transported to the liver for degradation and excretion. Two distinct forms of PLTP exist in plasma: an active form that can transfer phosphatidylcholine from phospholipid vesicles to HDL, and an inactive form that lacks this capability.

Target Subcellular Location

Secreted. Nucleus.

Target Protein Families

BPI/LBP/Plunc superfamily, BPI/LBP family

Target Tissue Specificity

Widely expressed. Highest level of expression in the ovary, thymus and placenta, with moderate levels found in the pancreas, small intestine, testis, lung and prostrate. Low level expression in the kidney, liver and spleen, with very low levels found in t

Target Research Area

Transport

Target Synonyms

BPI fold containing family E; BPIFE; HDLCQ9; High density lipoprotein cholesterol level quantitative trait locus 9; included; Lipid transfer protein II; OD107; Phospholipid transfer protein; Plasma phospholipid transfer protein ; Pltp; PLTP_HUMAN

Target Background

The protein encoded by this gene is one of at least two lipid transfer proteins found in human plasma. The encoded protein transfers phospholipids from triglyceride-rich lipoproteins to high density lipoprotein (HDL). In addition to regulating the size of HDL particles, this protein may be involved in cholesterol metabolism. At least two transcript variants encoding different isoforms have been found for this gene.