Dictionary » C » Carboxylase

Carboxylase

Carboxylase

1. One of several carboxy-lyases, trivially named carboxylases or decarboxylases (EC subclass 4.1.1), catalyzing the addition of co2 to all or part of another molecule to create an additional -COOH group (e.g., ribulose-1,5-bisphosphate carboxylase).

2. Obsolete name for pyruvate decarboxylase.


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Re: Photosynthesis/carbon fixing

No, the level of rubisco carboxylase. In the first example, rubisco carboxylase is normal level and the oxygen evolution is consistently higher than CO2 uptake. In the second example, rubisco carboxylase is at 40% its normal level. O2 ...

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by johnboy
Fri May 25, 2012 4:28 pm
 
Forum: Botany Discussion
Topic: Photosynthesis/carbon fixing
Replies: 8
Views: 4109

Photosynthesis/carbon fixing

... graphs. In all the graphs the oxygen levels, illumination and temperature are constant. The only variation is the level of the enzyme rubisco carboxylase which is set at normal for the first graph, 40% of normal in the second and 10% of normal in the third. The x-axis represents the uptake ...

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by johnboy
Thu May 24, 2012 11:48 am
 
Forum: Botany Discussion
Topic: Photosynthesis/carbon fixing
Replies: 8
Views: 4109

Please help!

... Oxaloacetate is a compound (C4O5) in the tricarboxylic acid cycle, it is an isomer of Malate, after the action of Malate Dehydrogenase or Pyruvate Carboxylase, and is a compund which has been formed (sometimes oxaloacetate, sometimes acetyl, depending on the end compound that will be produced) ...

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by billyfisher100
Sat Jan 21, 2012 1:13 pm
 
Forum: Cell Biology
Topic: Please help!
Replies: 10
Views: 5816

Re: bifunctional proteins

It's hard to beat RuBisCO (Ribulose bisphosphate carboxylase/oxygenase) as an extremely abundant example of a protein that catalyzes several reactions (though at a single active site). Also, what about the proteins involved in developmental patterning ...

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by jonmoulton
Tue Nov 03, 2009 4:32 pm
 
Forum: Molecular Biology
Topic: bifunctional proteins
Replies: 4
Views: 4665

Converting Glucose to Fat or ATP?

... For example, AMP regulates fatty acid synthesis and catabolism by controlling availability of malonyl-CoA." "Regulation of Acetyl-CoA Carboxylase by local metabolites: * Palmitoyl-CoA, the product of Fatty Acid Synthase, promotes the inactive conformation of Acetyl-CoA Carboxylase ...

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by MrMistery
Sun Dec 14, 2008 3:48 pm
 
Forum: Cell Biology
Topic: Converting Glucose to Fat or ATP?
Replies: 13
Views: 32601
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