Note: If you have trouble downloading these files, please tell me (jlittle@u.arizona.edu).

Identity	Type	Comments
*434repressor	helix-turn-helix	Similar in structure and function to lambda repressor
Arc	Beta ribbon	A repressor made by phage P22
*CAP	Helix-turn-helix	Prokaryotic activator. Bends DNA ~90 degrees.
*engrailed	Helix-turn-helix	A regulator of development in flies. Some minor groove contacts.
Gal4	Zn finger (2 Zn- 6 Cys)	Yeast activator
GCN4	Leucine zipper	Yeast activator
glucocorticoid recp.	glucocorticoid receptor	Zinc finger protein
*IHF	Unclassified	Prokaryotic, bends DNA, binds to minor groove
lambda repressor	helix-turn-helix	Bacteriophage lambda CI repressor
*MCM1: alpha2	alpha2 is helix-turn-helix	Yeast protein important in mating type switching
*MetJ	Beta ribbon	Prokaryotic repressor
MyoD	Helix-loop-helix	Eukaryotic activator
*nucleosome	unclassified	Structure of the nucleosome
*TBP1sub	unclassified	One subunit of the yeast TBP structure. Script file TBPbend.spt shows details of a sharp bend.
*TBP&TF2A		Complex of TBP and TFIIA
*TBP&TF2B		Complex of TBP and TFIIB
*YeastTBP	Unclassified	Yeast TATA-binding protein; bends DNA, binds minor groove
Zif268	Zinc finger	3 fingers, Cys4 type eukaryotic

A few other new high-resolution structures. These are large enough to be rather overwhelming!

RNA polymerase	unclassified	Prokaryotic enzyme, from Thermus aquaticus, 3.3 Å resolution. Link is to PDB. Structure does not contain DNA.
RNA polymerase holoenzyme		The same enzyme in complex with the s factor, 4.0 Å resolution. Shows clearly the disposition of s in the holoenzyme.
RNA polymerase open complex		A complex of RNA polymerase holoenzyme with a DNA fragment that resembles part of an open complex. Resolution is only 6.5 Å, but it allows the authors to build a model for the open complex itself.
eukaryotic RNA polymerase II elongation complex	complex containing protein, DNA and nascent mRNA	Yeast RNA polymerase II in the act of transcribing a DNA duplex, at 3.3 Å resolution. Only portions of the DNA and RNA are visible. Interestingly, it shows that the DNA is bent almost 90 degrees. Link is to PDB.
50S subunit of ribosome	RNA-protein complex	Large subunit of prokaryotic ribosome at 2.4 Å. Link is to PDB.
30S subunit of ribosome	RNA-protein complex	Small subunit of prokaryotic ribosome at 3.0 Å. Link is to PDB.