Hepatic lipase often found bound to HSPG, heparan sulfate proteoglycans (HSPG), keeping HL inactive and unable to bind to HDL (high density lipoprotein) or IDL (intermediate density lipoprotein). When it is free in the bloodstream, however, it is found associated with HDL to maintain it inactive. This is because the triacylglycerides in HDL serve as a substrate, but the lipoprotein contains proteins around the triacylglycerides that can prevent the triacylglycerides from being broken down by HL. One of the principal functions of hepatic lipase is to convert intermediate-density lipoprotein (IDL) to low-density lipoprotein (LDL). Hepatic lipase thus plays an important role in
Adjective phrase An attributive adjective (phrase) precedes the noun of a noun phrase (e.g. "a very happy" man). A predicative adjective (phrase) follows a linking verb and serves to describe the preceding subject, e.g. "The man is very happy". The adjective phrases are underlined in the following example sentences. The head adjective in each of these phrases is in bold, and how the adjective phrase is functioning—attributively or predicatively—is stated to the right of each example: The distinguishing characteristic of an attributive adjective phrase is that it appears inside the noun phrase that it modifies. An interesting trait of these phrases in