Assertion: diatom's role | /r/AtLocation | diatom
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Source sentences:
text: Less is known about the role of the other CA found in diatoms, including two other novel CAs, one able to use either Zn or Co as cofactor, the other specific for Cd (Roberts et al. 1997; Cox et al. 2000; Lane et al. 2005; Park et al. 2007; Szabo and Colman 2007).