9-18-08 - Methanotrophy Methane-> methanol-> formaldehyde...

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Methanotrophy Methane ---> methanol ---> formaldehyde Formaldehyde Serine pathway Ribulose monophosphate pathway GAP 2-PG
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H C H H H Fe 2+ O Fe 2+ O O Fe 3+ O Fe 3+ O - O - + H + Fe 3+ O Fe 3+ OH O - Fe 4+ O Fe 4+ OH - 2- O + H + Fe 4+ O Fe 4+ O 2- + H 2 O Fe 4+ O Fe 4+ O 2- H C H H Fe 4+ O Fe 3+ O - H H C H H Fe 3+ O Fe 3+ HO + 2 e - Fe 2+ O Fe 2+
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Methanol dehydrogenase H C H H O N HN COO - COO - O O - OOC H B N HN COO - COO - O O - - OOC H H A N HN COO - COO - OH OH - OOC - 2 e - , 2 H + N HN COO - COO - O O - OOC
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PQQ ---> cytochrome c L ---> cytochrome c H Cyctochrome c H ---> cytochrome c oxidase ---> O 2
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3 Ru5P + 3 Formaldehyde 3 Hu6P 3 F6P 4 GAP + 2 DHAP Formaldehyde assimilation: Ribulose monophosphate pathway 1 GAP 3 GAP 2 DHAP C3 + C3 = C6 C6 + C3 = C4 + C5 C4 + C3 = C7 C7 + C3 = 2 C5 3 formaldehyde + ATP = GAP + ADP
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CHOH O OH OH CH 2 OH H B H+ CHOH O OH CH 2 H B H H O H+ C O 2 2 H B H+ C 2 2 O H B H+ C 2 2 O HO
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Formaldehyde assimilation: Serine pathway Net rxn: 2 formaldehyde + CO 2 + 2 ATP + NADH + FAD ----> 2-phosphoglycerate + NAD + + FADH 2 + 2 ADP
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N + O - 2- O 3 PO NH 2 - O O O Schiff Base Formation N + O - 2- O 3 PO N + H H O - O H H H N O - 2- O 3 N + H O - O H H N O - 2- O 3 N + H O - O H H N + O - 2- O 3 N + H O - O H H H Schiff Base Hydrolysis N + O - 2- O 3 H NH 3 + O - O H H O O O - O O - O O - O O - O O - O O - B H+
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N + O - 2- O 3 PO NH 2 - O O O H Schiff Base Formation N + O - 2- O 3 PO N + H H H O - O H H H B N O - 2- O 3 N + H H O - O H H N O - 2- O 3 N + H H O - O H H H A N + O - 2- O 3 N + H H O - O H H H Schiff Base Hydrolysis N + O - 2- O 3 H H NH 3 + O - O H H O
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COO - C NH 3 + H CH 2 OH N + 2- O 3 PO O - H C H O Schiff Base Formation N + 2- O 3 PO O - H C H COO - C NH + H CH 2 O H N 2- O 3 PO O - H C H COO - C
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9-18-08 - Methanotrophy Methane-> methanol-> formaldehyde...

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