FEV_KEGG.Experiments.25 module

Context

Similar to 21, only with a different Class and Order, to see if the distribution of new enzymes by majority threshold is comparable between very different Classes.

Question

Taking a complete set of organisms, forming a group (Desulfobacterales, Order) and a super group (Deltaproteobacteria, Class) of organisms, how many functions occur in the majority network of the group, but not in the majority network of the super group? For varying majority-percentages.

Method

Same as 21, only different Class and Order. - Create a group of all organisms of Order to be found in KEGG. - Create a super group of all organisms of Class to be found in KEGG, including the same organsims as the group of Order. - REPEAT for varying majority-percentages: - Calculate majority substance-ec graphs for both groups. Leaving only EC numbers which occur in all organisms of the group. - Calculate the difference of the two sets of majority EC numbers, leaving only the EC numbers which occur in Order majority, but not in Class majority. - Print the amount of EC numbers and their percentage of all EC numbers in Order, ie. how many of the EC numbers in Order do not exist in Class majority.

Result

224/238 -> 94.1% of EC numbers in Desulfobacterales are new, compared to Deltaproteobacteria majority @ 100% majority for both
 63/238 -> 26.5% of EC numbers in Desulfobacterales are new, compared to Deltaproteobacteria majority @ 90% majority for both
 65/299 -> 21.7% of EC numbers in Desulfobacterales are new, compared to Deltaproteobacteria majority @ 80% majority for both
 49/333 -> 14.7% of EC numbers in Desulfobacterales are new, compared to Deltaproteobacteria majority @ 70% majority for both
 37/373 ->  9.9% of EC numbers in Desulfobacterales are new, compared to Deltaproteobacteria majority @ 60% majority for both
 56/418 -> 13.4% of EC numbers in Desulfobacterales are new, compared to Deltaproteobacteria majority @ 50% majority for both
 45/470 ->  9.6% of EC numbers in Desulfobacterales are new, compared to Deltaproteobacteria majority @ 40% majority for both
 49/526 ->  9.3% of EC numbers in Desulfobacterales are new, compared to Deltaproteobacteria majority @ 30% majority for both
 59/602 ->  9.8% of EC numbers in Desulfobacterales are new, compared to Deltaproteobacteria majority @ 20% majority for both
 93/736 -> 12.6% of EC numbers in Desulfobacterales are new, compared to Deltaproteobacteria majority @ 10% majority for both

Conclusion

In contrast to Spirochaetes/Brachyspirales from 21, ther percentage of new EC numbers quickly drops. Since both groups are calculated with the same decreasing majority threshold, the percentage of new EC numbers even oscillates. Deltaproteobacteria/Desulfobacterales seem much less diverse than Spirochaetes/Brachyspirales.

FEV_KEGG.Experiments.25.groupEcGraph(taxonomy)[source]
FEV_KEGG.Experiments.25.supergroupEcGraph(taxonomy)[source]