530 / | HD | CHEMISTRY: NATURAL RESINS OR DERIVATIVES; PEPTIDES OR PROTEINS; LIGNINS OR REACTION PRODUCTS THEREOF |
350 | DF | PROTEINS, I.E., MORE THAN 100 AMINO ACID RESIDUES {14} |
400 | .~ Metal containing, e.g., chromoproteins, ferritin, ferredoxins, etc. {1} | |
401 | DF | .~.~> Cytochromes, e.g., chlorophyl, orgotein, etc. |