Talk:Ligand (biochemistry)

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The second graph is wrong. The curves should be sigmoidal, like in the figure of the article Dose-response relationship.--InfoCan (talk) 15:10, 20 October 2008 (UTC)

I agree with InforCan if no compelling argument is offered. Furthermore do molecular biologist/biochemists really use a lowercase "kd"? As a chemist I follow the convention that all equilibrium constants should represented in the upper case often italicized as in "Kd". Lowercase is reserved for kinetics so "kd" would the rate at which a substrate dissociates.-- (talk) 16:01, 22 January 2009 (UTC).

I agree that the second graph was wrong: however, it should not be sigmoidal because the axes are linear-linear; the sigmodial shape will only appear on a log-linear plot. I've now replaced the original image for this page with one properly (I hope) comparing the binding of two ligands with different affinity.(Klbrain)


This (here) is how I understand ligand, however, why there are two articles about ligands? What is it, that makes ligand different topic, I see it is defined differently there, however I do not understand the distinction or if there is context dependence of it.. or what .. I would assume the meaning here is more general, can it be understood as primary meaning?--Reo + 02:11, 30 December 2012 (UTC)

Propose merging Protein ligand into this article[edit]

I'd like to propose that we merge Protein ligand into this article. Please discuss here. Klortho (talk) 01:46, 25 April 2013 (UTC)


Are hormons considered ligands? Generally they are. And antigens are ligands for their antibodies. The word is used for many types of molecules which bind transporter proteins (or for storage), regulator proteins, antibodies, ect. And in hemoglobin (caption of the first picture) oxygen is the ligand and the hemo is a prosthetic group (not a ligand).--Miguelferig (talk) 00:45, 15 July 2013 (UTC)