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Biopolymers consisting of amino acids that fold into 3D shapes and perform a large number of functions in living organisms.

6 votes

What is the transmembrane 'Positive-Inside Rule' nowadays? Has the definition changed over t...

During synthesis most membrane proteins (ignoring peroxisomal and mitochondrial proteins, which are a whole other topic) are inserted into the ER membrane by the Sec translocon. … So, for membrane proteins found in the endosome, for example, amino acid residues in the lumen are actually "outside" not "inside". …
UbuntingBiochemist's user avatar