Here is list of complexes which have free form structures of both subunits.

A lot of protease-inhibitors and antibody complexes are not here.

Numbers have links to pdb file with superposed structures. Complex chains ID-s are always A,B(,C), free structures of protein 1 - 1,2,3,4,5 and free structures of protein 2 - V,W,X,Y,Z. (This is useful when using rasmol and coloring by chain.)

Not more than 5 free structures superposed to the structure of the complex.

001	1a1mAB	Mhc (Major Histocompatibility Antigen)	Beta2-Microglobulin
002	1a4yAB	Ribonuclease Inhibitor	Angiogenin
003	1ahwABC	Immunoglobulin Fab 5G9	Tissue Factor
004	1aipAC	Elongation Factor Tu	Elongation Factor Ts
005	1am4AD	P50-Rhogap	Cdc42Hs (Rhoa/Rac1)
006	1aroPL	T7 RNA Polymerase	T7 Lysozyme
007	1atnAD	Actin Alpha 1	Deoxyribonuclease I
008	1avzBC	Negative Factor	Fyn Tyrosine Kinase
009	1ay7AB	Guanyl-Specific Ribonuclease Sa	Barstar
010	1b27AD	Barnase	Barstar
011	1b41AB	Acetylcholinesterase	Fasciculin-2
012	1bi7AB	Cyclin-Dependent Kinase 6	Multiple Tumor Suppressor
013	1bj1LHW	Fab	Vascular Endothelial Growth Factor
014	1blxAB	Cyclin-Dependent Kinase 6	P19Ink4D (Cyclin-Dependent Kinase 6 Inhibitor)
015	1bmlAC	Plasmin	Streptokinase
016	1bqqTM	Metalloproteinase Inhibitor 2	Membrane-Type Matrix Metalloproteinase (Collagenase/Gelatinase)
017	1br1AB	Myosin	Calmodulin
018	1buhAB	Human Cyclin-Dependent Kinase 2	Cyclin Dependent Kinase Subunit
019	1bvnPT	Alpha-Amylase	Tendamistat (Alpha-Amylase Inhibitor)
020	1bzqAL	Ribonuclease A	Antibody Cab-Rn05
021	1c0fSA	Gelsolin	Actin
022	1c4zAD	Ubiquitin-Protein Ligase E3A	Ubiquitin Conjugating Enzyme E2
023	1cc0AE	Transforming Protein Rhoa	Rho GDP Dissociation Inhibitor
024	1cjkBC	Adenylate Cyclase	Guanine Nucleotide-Binding Protein
025	1d5mAC	Hla Class II Histocompatibility Antigen	Enterotoxin
026	1d9kAB	T-Cell Receptor D10 (Alpha Chain)	(Beta Chain)
027	1df9AC	Nonstructural Protein 1	Bowman-Birk Type Trypsin Inhibitor
028	1doaAB	GTP-Binding Protein	GDP-Dissociation Inhibitor
029	1e96AB	Ras-Related C3 Botulinum Toxin Substrate (Rhoa/Rac1)	Neutrophil Cytosol Factor 2
030	1e9hCD	Human Cyclin-Dependent Kinase 2	Cyclin A
031	1efnAB	Fyn Tyrosine Kinase	Hiv-1 Nef Protein
032	1efxDA	Natural Killer Cell Receptor Kir2Dl2	Hla-Cw3 (Major Histocompatibility Antigen)
033	1exbAE	Kv Beta2 Protein	Potassium Channel Kv1.1
034	1ezsAD	Ecotin	Anionic Trypsin
035	1f34AB	Pepsin A	Major Pepsin Inhibitor Pi-3
036	1f6mAC	Thioredoxin Reductase	Thioredoxin 1
037	1fbvAC	Signal Transduction Protein Cbl	Ubiquitin-Conjugating Enzyme E12-18 Kda
038	1fm9AD	Retinoic Acid Receptor Rxr-Alpha	Peroxisome Proliferator Activated Recept
039	1fqjAB	Chimera Of Guanine Nucleotide-Binding Protein	Regulator Of G-Protein Signaling
040	1g4uSR	Protein Tyrosine Phosphatase Sptp	Ras-Related C3 Botulinum Toxin Substrate
041	1gcqAC	Growth Factor Receptor-Bound Protein 2	Vav Proto-Oncogene
042	1gg2AB	G Protein Gi Alpha	G Protein Gi Beta
043	1glaFG	Glucose-Specific Phosphocarrier	Glycerol Kinase
044	1he1AC	Exoenzyme S	Ras-Related C3 Botulinum Toxin Substrate
045	1he8AB	Phosphatidylinositol 3-Kinase	Transforming Protein P21/H-Ras-1
046	1hiaBI	Kallikrein	Hirustasin
047	1hluAP	Beta-Actin	Profilin
048	1i2mAB	GTP-Binding Nuclear Protein Ran	Regulator Of Chromosome Condensation
049	1i4dAD	Arfaptin 2	Ras-Related C3 Botulinum Toxin Substrate
050	1i4eAB	Early 35 Kda Protein	Caspase-8
051	1i99IE	Alaserpin (Serpin K/Antithrombin)	Anionic Trypsin
052	1ib1AE	14-3-3 Zeta Isoform	Serotonin N-Acetyltransferase
053	1j7dBA	Ubiquitin-Conjugating Enzyme E2-17 Kda	Mms2
054	1jckAB	14.3. D T Cell Antigen Receptor	Staphylococcal Enterotoxin C3
055	1kacAB	Fiber Knob Protein	Coxsackie Virus and Adenovirus Receptor
056	1lfdAB	Ralgds	Ras
057	1qa9AB	Human Cd2 Protein	Human Cd58 Protein
058	1tmqAB	Alpha-Amylase	Ragi Bifunctional Inhibitor
059	1ughEI	Uracil-DNA Glycosylase	Uracil-DNA Glycosylase Inhibitor
060	1viwAB	Alpha-Amylase	Alpha-Amylase-Inhibitor
061	1wq1RG	H-Ras	P120Gap