Question

What are some of the 'in vivo' functions of the phospholipases, which cleave phospholipids? @Biology

Answer 1

in vivo means within the cell

Answer 2

yes and cell is itself means living i didnt mention mam becoz i thought u wer getin cnfused in statement by that word
Table 1. Identified Human Phospholipase A1
Group Name Phospholipase activity Triacylglycerol hydrolase activity Enzymatic or Physiological Function
Intracellular PA-PLA1 Phosphatidate specific X spermiogenesis
p125 Phosphatidate specific ? COPII vesicle organization
KIA0725p Phosphatidate specific X membrane trafficking from Golgi
Extracellular PS-PLA1 Phosphatidate and lysophosphatidic acid specific X Lysophosphatidic acid production
mPA-PLA1α Phosphatidate specific X Lysophosphatidic acid production
mPA-PLA1β Phosphatidate specific X Lysophosphatidic acid production
Pancreatic lipase tick tick intestinal triacylglycerol hydrolysis
Lipoprotein lipase tick tick hydrolyze mainly triacylglycerol in plasma
Hepatic lipase tick tick hydrolyze triacylglycerol and phospholipids in plasma
Endothelial lipase tick tick hydrolyze mainly phospholipids in plasma
Pancreatic lipase related protein-1 ? ? regulate phospholipids in vivo
Pancreatic lipase related protein-2 tick tick intestinal triacylglycerol hydrolysis
Pancreatic lipase related protein-3 ? ? ?
mPA-PLA1, membrane-associated phosphatidic acid preferring phospholipase A1; PA-PLA1, phosphatidic acid specific phospholipase A1; PS-PLA1, phosphatidylserine selective phospholipase A1.

Answer 3

orry the chart get mess up better u luk this ssite
http://lipidlibrary.aocs.org/animbio/phospholipases/index.htm

Answer 4

now THAT's graphic :D

okay, seriously. the main purpose of lipases is digestion. the cell membranes of former living things you eat is made out of phospholipids that need to be digested. that is point A.

point B: phospholipases often start the synthesis chains of handy other molecules like prostaglandins (the ouchy-ouchy-molecule) or IP3, a second messenger in cell signal pathways (phospholipase C).

point C: many toxins of snakes (or bees, for that matter) contain phospholipase A2. the lipase will digest the cell membranes and as such kill smaller organisms by poking holes into their cell membranes.


I hope I could help. :-)

Answer 5

Thanks, Heena and Schleifspur. You did help :D.

Answer 6

well i dunno more about it i just posted a link if it help u den ur thnx is accepted coz den i deserve it :)

Answer 7

It's okay