11345
In addition , 26 amino acid residues , K69 , D88 , E94 , D134 , R154 , K169 , H197 , D233 , G235 , G236 , G237 , F238 , E274 , G276 , R277 , Y278 , K294 , Y323 , Y331 , D332 , C360 , D361 , D364 , G387 , Y389 , and F397 ( mouse ODC numbering ) , all of which are implicated in the formation of the pyridoxal phosphate - binding domain and the substrate - binding domain and in dimer stabilization with the eukaryotic ODCs , were also conserved in S . ruminantium LDC .
 ODC, ODCs, LDC
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 ODC, ODCs, LDC