Table 6.
A comparison of MetaCyc (M) and KEGG (K) reaction attributes, for those attributes where one hundred or more objects have a value for that attribute
|
MetaCyc |
|
KEGG |
|
|---|---|---|---|
| Attribute (M) | Frequency (M) | Attribute (K) | Frequency (K) |
| Physiologically-Relevant? |
10262 |
|
|
| Creation-Date |
10247 |
|
|
| |
|
Rpair |
8292 |
| Creator |
8090 |
|
|
| EC-Number |
7998 |
Enzyme |
7632 |
| Reaction-Direction |
6660 |
|
|
| Orphan? |
5967 |
|
|
| Credits |
2779 |
|
|
| Rxn-Locations |
282 |
|
|
| Spontaneous? | 238 |
Attributes are sorted based on the MetaCyc frequency column. Attribute Physiologically-Relevant? describes whether a reaction occurs in vivo. Reaction-Direction specifies the directionality of the reaction. Orphan? is true when no nucleotide or amino-acid sequence has been determined for any enzyme catalyzing this reaction [39,40]. Rxn-Locations specifies the cellular locations in which a reaction occurs (e.g., cytoplasm or mitochondrion). Spontaneous? specifies whether a reaction occurs spontaneously in living organisms and therefore requires no enzyme. KEGG reaction attribute data are derived from the KEGG REACTION dataset, and thus include glycan reactions.