Primary Citation PubMed: 15537538
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Minimal functional sites allow a classification of zinc sites in proteins.
(2011) PLoS One 6
PubMed: 22043316 | PubMedCentral: PMC3197139 | DOI: 10.1371/journal.pone.0026325
For example, in a Zn-site of yeast RNA polymerase II (PDB code 1twf  ) the two zinc ligands on the α-helix are adjacent in the sequence (whereas in 72% of the cases they are separa... ed by two residues), thereby enforcing a configuration where the axes of the β-hairpin and the α-helix are almost perpendicular.
In the classical classification of zinc fingers given by Grishin  , some of the Zn-sites belonging to this cluster were placed into two different groups, i.e., the “TAZ2 domain-like” group (including, e.g., a zinc necklace of the transcriptional adaptor protein CBP, PDB code 1f81  ) and the “short zinc-binding loops” group (including, e.g., a zinc necklace of RNA polymerase II, PDB code 1twf  ).
Publication Year: 2011
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