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So, I was going through this lecture about ABC transporter and one point about it confused me. ABC transporter is not the same as an ATPase but let's take an example of Cystic Fibrosis Transmembrane Regulator. In it 2 molecules of ATP bind with the channel and then they undergo hydrolysis in order for Chloride ion movement to occur. So,if hydrolysis is occurring when ATP was bound to the channel then shouldn't it also function as an ATPase or is it so that it is binding and the channel isn't doing the function of hydrolysis, some other molecule is and it is just using that energy.

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  • $\begingroup$ "ABC transporter is not an ATPase" - according to whom? $\endgroup$ – Bryan Krause Sep 11 at 16:28
  • $\begingroup$ They told me that an ABC transporter is not the same thing as an ATPase $\endgroup$ – user53517 Sep 11 at 16:46
  • $\begingroup$ Can you provide a quote? "ABC transporter is not the same thing as an ATPase" is true just like "an automobile is not the same thing as a vehicle" is true. "ABC transporter is not an ATPase" is false in general, though may be true for a specific ABC family member. $\endgroup$ – Bryan Krause Sep 11 at 16:49
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    $\begingroup$ See on the topmost of lecture where they write what topic they are teaching, they wrote that ABC transporters are not ATPases but the teacher that was doing lecture said that an ABC transporter is not the same thing as an ATPase. Well by the way can you tell me the difference between the two statements as they seem kinda same to me. $\endgroup$ – user53517 Sep 11 at 16:53
  • $\begingroup$ Also, should I edit the question's statement to make it better $\endgroup$ – user53517 Sep 11 at 16:54

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