Chimera
Aileen Zaydel
1S0V
DNA non-template
RNA
polymerase
RNA transcript
DNA template
Tyr639
Ligands (Mg ion)
Biological Assembly
DNA nontemplate
1S0V
DNA nontemplate
DNA template
Tyr639
RNA
polymerase
RNA transcript
Mg ion
Tyrosine 639, as part of the RNA polymerase, determines between ribose and
deoxyribose substrates. Once Tyr639 checks the sugar, the RNA polymerase can
interact with the Mg ion to bind the RNA transcript to the DNA template.
1HHO
Chain A
Chain B
Complete biological assembly
1HHO
Histidine
92B
Heme
Oxygen
Heme, coordinating histidine, and bound oxygen.
1MBO & 2HHB
Hemoglobin
Myoglobin
Myoglobin has a few extra residues at the end of its chain, interfering with
its ability to bind with additional chains.
1MBO & 2HHB
Hydrophobic
Hydrophillic
Myoglobin
Hemoglobin
Hemoglobin has a more concentrated hydrophobic area in the region where each
of its chains can bind to another chain. Myoglobin has dispersed hydrophobic
areas so it does not have an affinity to bind with additional chains