Structural basis for selectivity of a small molecule, S1-binding, sub-micromolar inhibitor of urokinase type plasminogen activator. Determined by X-ray diffraction at 1.47 Å resolution. Released 22 Dec 2000.
Explore 1C5L in 3D Show helices and sheets RCSB PDB PDBe
1C5L contains 17 α-helices and 25 β-strands across 3 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.
| Element | Residues | Length | Sheet |
|---|---|---|---|
| β-strand | 17 | 1 | 2 |
| β-strand | 20-21 | 2 | 3 |
| α-helix | 22-23 | 2 | |
| β-strand | 30-35 | 6 | 4 |
| β-strand | 39-46 | 8 | 4 |
| β-strand | 51-54 | 4 | 4 |
| α-helix | 56-58 | 3 | |
| β-strand | 60-60A | 2 | 5 |
| α-helix | 60B-60D | 3 | |
| β-strand | 60F-60G | 2 | 5 |
| α-helix | 61-63 | 3 | |
| β-strand | 64-68 | 5 | 4 |
| β-strand | 72 | 1 | 6 |
| β-strand | 81-83 | 3 | 4 |
| β-strand | 85-90 | 6 | 4 |
| β-strand | 95 | 1 | 7 |
| β-strand | 100 | 1 | 7 |
| β-strand | 104-108 | 5 | 4 |
| α-helix | 111-114 | 4 | |
| α-helix | 120-121 | 2 | |
| β-strand | 122 | 1 | 3 |
| α-helix | 123-124 | 2 | |
| α-helix | 126-129C | 7 | |
| β-strand | 135-140 | 6 | 3 |
| β-strand | 154 | 1 | 6 |
| β-strand | 156-162 | 7 | 3 |
| α-helix | 165-170 | 6 | |
| α-helix | 175-176 | 2 | |
| β-strand | 180-183 | 4 | 3 |
| α-helix | 186-186B | 3 | |
| β-strand | 189 | 1 | 2 |
| β-strand | 198-202 | 5 | 3 |
| β-strand | 207-215 | 9 | 3 |
| β-strand | 226-230 | 5 | 3 |
| α-helix | 232-234 | 3 | |
| α-helix | 235-245 | 11 |
| Element | Residues | Length | Sheet |
|---|---|---|---|
| α-helix | 56-58 | 3 | |
| α-helix | 61-63 | 3 |
| Element | Residues | Length | Sheet |
|---|---|---|---|
| β-strand | 1G | 1 | 1 |
| β-strand | 1D | 1 | 1 |
| α-helix | 8-10 | 3 | |
| α-helix | 14C-14I | 7 |
| Molecule | Chains | Type | Length | Organism | UniProt |
|---|---|---|---|---|---|
| thrombin | L | protein | 36 | Homo sapiens | P00734 (AlphaFold model) |
| thrombin | H | protein | 259 | Homo sapiens | P00734 (AlphaFold model) |
| Hirudin | I | protein | 10 | Hirudo medicinalis | P01050 (AlphaFold model) |
>1C5L_1 thrombin (chains L) TFGSGEADCGLRPLFEKKSLEDKTERELLESYIDGR
>1C5L_2 thrombin (chains H) IVEGSDAEIGMSPWQVMLFRKSPQELLCGASLISDRWVLTAAHCLLYPPWDKNFTENDLL VRIGKHSRTRYERNIEKISMLEKIYIHPRYNWRENLDRDIALMKLKKPVAFSDYIHPVCL PDRETAASLLQAGYKGRVTGWGNLKETWTANVGKGQPSVLQVVNLPIVERPVCKDSTRIR ITDNMFCAGYKPDEGKRGDACEGDSGGPFVMKSPFNNRWYQMGIVSWGEGCDRDGKYGFY THVFRLKKWIQKVIDQFGE
>1C5L_3 Hirudin (chains I) DFEEIPEEYL
| ID | Name | Formula | Copies |
|---|---|---|---|
| CA | Calcium ion | Ca | 1 |
Water and common crystallization additives (NA) are not listed.
Structural basis for selectivity of a small molecule, S1-binding, submicromolar inhibitor of urokinase-type plasminogen activator. Katz, B.A., Mackman, R., Luong, C. et al. Chem Biol (2000) 7:299-312. DOI 10.1016/S1074-5521(00)00104-6 · PubMed
Other PDB entries of the same protein (UniProt P00734 (AlphaFold model), which also has an AlphaFold model), best resolution first:
MolViewer shows 1C5L directly in your browser with nothing to install. Switch between cartoon, ball-and-stick, spacefill and surface views, color by chain, secondary structure or B-factor, measure distances, angles and dihedrals, and share or embed the view.