Unbalance reactions about FAD/Oxygen

[JHL-452b]

There appear to be a few unbalanced reactions which FAD/Oxygen have involved

Current behavior:

ID	Reaction	Cause of imbalance
MAR08415	2 H+ + 2 O2- --> FAD + FADH2	{'charge': -4, 'H': 62, 'C': 54, 'N': 18, 'O': 26, 'P': 4}
MAR03984	2 FADH2 --> FAD + 2 H2O	{'charge': 2, 'H': -31, 'O': -13, 'C': -27, 'N': -9, 'P': -2}
MAR12372	2 CoA + FAD + 2 H2O + 2 NAD+ + 3'-S-hydroxy-pravastatin-CoA --> 2 acetyl-CoA + 2 FADH2 + 2 H+ + 2 NADH + 3'-S-hydroxy-pravastatin-tetranor-CoA	{'charge': -2, 'C': 27, 'H': 31, 'N': 9, 'O': 13, 'P': 2}

I traced the modification history of these reactions and found that they were modified in PR670 and resulted in an imbalance. There are obvious imbalance errors in these reactions and may even lead to model inconsistencies.

Proposed changes

Modify the reaction back to its original form.

ID	Reaction now	Reaction before
MAR08415	2 H+ + 2 O2- --> FAD + FADH2	2 H+ + 2 O2- --> H2O2 + O2
MAR03984	2 FADH2 --> FAD + 2 H2O	2 H2O2 --> 2 H2O + O2
MAR12372	2 CoA + FAD + 2 H2O + 2 NAD+ + 3'-S-hydroxy-pravastatin-CoA --> 2 acetyl-CoA + 2 FADH2 + 2 H+ + 2 NADH + 3'-S-hydroxy-pravastatin-tetranor-CoA	2 CoA + 2 H2O + 2 NAD+ + O2 + 3'-S-hydroxy-pravastatin-CoA --> 2 acetyl-CoA + 2 H+ + 2 H2O2 + 2 NADH + 3'-S-hydroxy-pravastatin-tetranor-CoA

[feiranl]

Nice catch! @Devlin-Moyer It would be great if you can double check this. Thanks!

[Devlin-Moyer]

ah yep those reactions are all definitely unbalanced and should be reverted to their earlier forms; sorry for not noticing them back in #670

[feiranl]

Thanks for checking! @Devlin-Moyer . @JHL-452b go ahead and make the PR.