In a hypothetical situation of environmental exposure to various metals simultaneously, choose the alternative that presents to which metal the enz...
In a hypothetical situation of environmental exposure to various metals simultaneously, choose the alternative that presents to which metal the enzyme would mainly bind.
A low molecular weight protein has almost 30% of its structure composed of cysteine amino acids, which implies the occurrence of multiple free thiol domains to neutralize the reactive nature of metals.
This class of metalloproteins differs from others by the number of different metals that can bind, both in vivo and in vitro to various metals, which bind through sulfur bridges and terminals present in sulfhydryl radicals.
Zinc.
Arsenic.
A low molecular weight protein has almost 30% of its structure composed of cysteine amino acids, which implies the occurrence of multiple free thiol domains to neutralize the reactive nature of metals.
This class of metalloproteins differs from others by the number of different metals that can bind, both in vivo and in vitro to various metals, which bind through sulfur bridges and terminals present in sulfhydryl radicals.
Zinc.
Arsenic.
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Ed 
Com base na descrição fornecida, a alternativa correta é "Zinco". Isso ocorre porque a descrição menciona que a proteína de baixo peso molecular tem múltiplos domínios tiol livres para neutralizar a natureza reativa dos metais. O zinco é um metal que pode se ligar a esses domínios tiol, formando pontes de enxofre e terminais presentes em radicais sulfidrílicos. O arsênico, por outro lado, não é mencionado como um metal que se liga a esses domínios tiol.
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