If you go to the Protein Database, you can download the
following files to examine these protein structures using RasMol (available below).

Alternatively, you may download the structures directly from this site by option/clicking on the name to the right (you must download the file, rather than opening it as a webpage).

PDB code	Protein
1BCF	bacterioferritin
1BPI	bovine pancreatic trypsin inhibitor
1BAV	carboxypeptidase (tetramer)
1BBE	collagen
1PEX	collagenase (b-propeller)
1ENR	concanavalin A
1CRN	crambin
1COP	cro repressor
1BBH	cytochrome c' (dimer)
3CYR	cytochrome c3
1ENH	engrailed homeodomain
1DUB	enoyl-CoA hydratase
1AG9	flavodoxin (dimer)
1EMA	green fluorescent protein
1A3N 1HGA 1BBB 1B86	hemoglobin For take-home exam (2003): T-state R-state (CO-bound) T-state (BPG bound)
1A3R 1A2Y	Immunoglobulins: anti-rhinoviral peptide (co-crysta1) antilysozyme Fv fragment (co-crysta1)
104M	myoglobin
2HMQ	myohemerythrin (dimer)
1PKL	pyruvate kinase (octamer)
1AO6	serum albumin
1SLK	silk model 1
2SLK	silk model 2
1SYN	thymidylate synthase
2TBV	tomato bushy stunt virus (trimer)
1AMK	triose phosphate isomerase
1LXA	UDP N-GlcNac acyltransferase
1AKS 1A0J	trypsin monomer trypsin tetramer (benzamidine complex)
1GCT	chymotrypsin
1BE6	subtilisin
1TLP	thermolysin (phosphoramidon complex)
1RUV	ribonuclease
1GLK	hexokinase (glucose complex)
2ONE 7ENL	enolase dimer: chain A complexed with 2-PGA, chain B complexed with 2-PEP monomer complexed with 2-PGA
1DLD	lactate dehydrogenase (theoretical model of NADH/pyruvate complex)
1MIG	catalytic antibody (hapten complex)
1EKX 1Q95 3AT1 2AT1 5AT1 4AT1	aspartate transcarbamylase: homotrimer of catalytic subunits complexed to PALA T state (PAM bound) (3AT1 biological coords) R state (PAM, malonate bound) (2AT1 biological coords) T state (CTP complex) (5AT1 biological coords) T state? (ATP complex) (4AT1 biological coords)
1PFK 6PFK	phosphofructokinase: dimer (FBP/ADP complex) tetramer (T state)
1FUM	succinate dehydrogenase (fumarate reductase)
1BCC 2BCC 3BCC IBGY	cytochrome bc1: bc1 (UQ at Qi site) bc1 (stigmatellin at Qo site) bc1 (antimycin A/stigmatellin complex) cyt bc1 homodimer
1AR1	cytochrome oxidase (bound to antibody)
1MAB 1BMF 1EFR 1Q01	F1Fo ATP synthase: alpha/beta(ADP+Pi)/gamma F1(alpha3/beta3/gamma subcomplex) bound to efrapeptin inhibitor F1Fo substructure (has c ring)
5PRC	purple bacterial reaction center
1BH3	Porin monomer
1GT0	Nitrogenase
1BL8	Potassium channel
1AGP	Ras (GMP-PNP) complex
1BKD	Ras-GEF complex
1A09	Src SH2 domain bound to Tyr-Pi analog
1CLL	Calmodulin with 4 Ca^2+
1CDL	Ca^2+/CaM bound to peptide of myosin light chain kinase
1AO6	Ca^2+/CaM-dependent kinase
6TNA	tRNA (Phe, yeast)
5TRA	tRNA (Ser, yeast) - has extra loop
1QRT	Gln-tRNA synthetase (class I)
1ASZ	Asp-tRNA synthetase (class II)
4BDP	DNA polymerase I with DNA
1EFA	Lac repressor (helix-turn-helix)
1TRO	Trp repressor (helix-turn-helix)
1ENH	engrailed homeodomain
1D66	Gal4 (Zn finger)
1YSA	Gcn4 (Leu zipper)
1AN2	Max (helix-loop-helix)
1CMA	Met repressor (beta-strand)

RasMol files:
For PC: Program & help in zip file

For Mac: Program & help in stuffit file

Download these files and unzip/unstuff them. They should be able to work immediately.