FB2026_02 , released June 18, 2026
FB2026_02 , released June 18, 2026
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Term heterogen ID (Ontology) MI:2017 (Molecular Interactions)
Definition The HET records are used to describe non-standard residues, such as prosthetic groups, inhibitors, solvent molecules, and ions for\nwhich coordinates are supplied. Groups are considered HET if they are: \n- not one of the standard amino acids, and \n- not one of the nucleic acids (C, G, A, T, U, and I), and \n- not one of the modified versions of nucleic acids (+C, +G, +A,\n+T, +U, and +I), and \n- not an unknown amino acid or nucleic acid where UNK is used to\nindicate the unknown residue name. \nHet records also describe heterogens for which the chemical identity is unknown, in which case the group is assigned the hetID UNK.[ PubMed:14755292 ]
Also Known As "het"
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