1.3.1.33 chloroplast - 9507 -, 393843, 393858, 689772, 689784, 697680, 700758, 741157, 762710, 763107 1.3.1.33 chloroplast isoform POR1 9507 741255 1.3.1.33 cytoplasm nuclear-encoded cytoplasmically sythesized, posttranslationally processed on import into plastids 5737 393839, 393854, 393856 1.3.1.33 cytosol PORA precursor, pPORA 5829 700814 1.3.1.33 etioplast - 9513 393833, 393834, 393836, 393838, 393839, 393842, 393843, 393855, 393857, 393858, 393859, 393865, 393866, 689394, 689772, 697892 1.3.1.33 etioplast etioplast internal membrane 9513 393837, 393839, 393842, 393847 1.3.1.33 etioplast etioplast membrane 9513 393832, 393852, 393857 1.3.1.33 etioplast from prolamellar body to stroma of etioplast 9513 689396 1.3.1.33 etioplast membrane bound 9513 393835, 393845 1.3.1.33 etioplast prolamellar body 9513 657112 1.3.1.33 etioplast the enzyme (LPOR) binds more strongly to etioplast inner membranes than to thylakoid membranes 9513 763100 1.3.1.33 etioplast the enzyme (LPOR) exists as a ternary complex of protochlorophyllidee-NADPH-LPOR to form paracrystalline prolamellar bodies (PLBs) in etioplasts 9513 -, 763334 1.3.1.33 etioplast prolamellar body - 9541 393833, 393834, 393837, 393842, 393843, 393844, 393845, 393851, 393855, 393857, 393858, 393861, 393866, 654842, 656908, 656982, 700758 1.3.1.33 etioplast prolamellar body contains two photochemically active forms of the enzyme: protochlorophyllide oxidoreductase POR-PChlide640 and POR-PChlide650. Resuspension of prolamellar bodies in media with a pH below 6.8 leads to a rapid conversuion of POR-PChlide650 to POR-PChlide 640 and a dramatic reorganization of the membrane system of the prolamellar body. The disappearence of POR-PChlide 650 and the reorganization of the prolamellar body are irreversible 9541 393866 1.3.1.33 etioplast prolamellar body peripheral membrane protein 9541 393858 1.3.1.33 membrane - 16020 697892 1.3.1.33 membrane associated with 16020 758042 1.3.1.33 membrane LPOR is an integral monotopic membrane protein which is permanently attached to one side of the plastid inner membrane. Tubuloreticular prolamellar body membrane, envelope membrane 16020 763100 1.3.1.33 nucleus - 5634 740071 1.3.1.33 plasma membrane - 5886 393849, 393850 1.3.1.33 plastid - 9536 393839, 393843, 393844, 393853, 393854, 393856, 393858, 676012, 689784, 700758, 700814, 740071, 741337 1.3.1.33 plastid import of isoform PorA into plastids of cotyledons is substrate-dependent and organ-specific 9536 676494 1.3.1.33 plastid inner plastid membrane 9536 393856 1.3.1.33 plastid nucleus-encoded enzyme is synthesized as a larger precursor in the cytosol and imported into the plastid in a substrate-dependent manner. Plastid envelope membrane proteins, called protochlorophyllide-dependent translocon proteins, Ptcs, interact with pPORA during import. Partial suppression of pPORB import in white light 9536 657010 1.3.1.33 plastid outside the plastid in the area of the plasmalemma 9536 393844 1.3.1.33 plastid plastid membrane 9536 393841 1.3.1.33 plastid plastid membrane-associated 9536 393858 1.3.1.33 prothylakoid - 42649 393837, 393857 1.3.1.33 thylakoid - 9579 393858 1.3.1.33 thylakoid the enzyme (LPOR) binds more strongly to etioplast inner membranes than to thylakoid membranes 9579 763100 1.3.1.33 thylakoid thylakoid-membrane-bound 9579 393840