Sandbox Reserved 817: Difference between revisions
From Proteopedia
Jump to navigationJump to search
No edit summary |
No edit summary |
||
| Line 18: | Line 18: | ||
=== Post translational modification === | === Post translational modification === | ||
BACE1 is synthetised in the endoplasmamic reticulum as an inactive precursor, pro BACE1. This precursor is then maturated in the Golgi apparatus. It undergoes glycosylation of 4 residues : <scene name='56/568015/Asn/1'>Asn(153), Asn(172), Asn(223) and Asn(354) </scene>. This has a role in the activity. 3 cysteine residues of the cytosolic tail are also palmitoylated , it is has a role in the localization of the mature enzyme. The propeptide domain is clived between Arg 45 and Glu 46 by a proprotein convertase (protease). This clivage is known to increase the activity of the enzyme. | BACE1 is synthetised in the endoplasmamic reticulum as an inactive precursor, pro-BACE1. This precursor is then maturated in the Golgi apparatus. It undergoes glycosylation of 4 residues : <scene name='56/568015/Asn/1'>Asn(153), Asn(172), Asn(223) and Asn(354) </scene>. This has a role in the activity of BACE1. 3 cysteine residues of the cytosolic tail are also palmitoylated , it is has a role in the localization of the mature enzyme. The propeptide domain is then clived between Arg 45 and Glu 46 of pro-BACE1 by a proprotein convertase (protease). This clivage is known to increase the activity of the enzyme. | ||
[[Image:App cleavage.png|right|400px|thumb|'''Figure 1 :''' cleavage of APP by the amyloidogenic and non amyloidogenic pathways'']] | [[Image:App cleavage.png|right|400px|thumb|'''Figure 1 :''' cleavage of APP by the amyloidogenic and non amyloidogenic pathways'']] | ||
