24434
For the Pfr state of the bathy phytochrome from Pseudomonas aeruginosa ( PaBphP ) the very good agreement between calculated Raman spectra of the tetrapyrrole cofactor , obtained by quantum - mechanical / molecular - mechanical hybrid methods , and the experimental resonance Raman ( RR ) spectra confirms important conclusions derived from the previous crystallographic analyses , particularly the ZZEssa configuration of the chromophore and its attachment to the thiol side chain of Cys12 via the exocyclic vinyl group of ring A .
 Chemical: tetrapyrrole; Chemical: thiol; Chemical: Cys12; Chemical: vinyl
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: tetrapyrrole; Chemical: thiol; Chemical: Cys12; Chemical: vinyl