1A5H: Tissue plasminogen activator

Catalytic domain of human two-chain tissue plasminogen activator complex of a bis-benzamidine. Determined by X-ray diffraction at 2.9 Å resolution. Released 20 Apr 1999.

Method
X-ray diffraction
Resolution
2.9 Å
Organism
Homo sapiens
Chains
4
Atoms
4,213
Mol. weight
58.75 kDa
Ligands
BBA
Released
20 Apr 1999

Explore 1A5H in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

1A5H contains 23 α-helices and 36 β-strands across 2 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.

Chain A: 12 helices, 18 β-strands

ElementResiduesLengthSheet
β-strand1711
β-strand20-2122
α-helix24-263
β-strand30-3563
α-helix381
β-strand39-48103
β-strand51-5443
α-helix56-594
α-helix61-633
β-strand64-6853
β-strand7214
β-strand81-90103
β-strand104-10853
α-helix1091
α-helix120-1212
β-strand12212
α-helix123-1253
α-helix130-1312
β-strand135-14062
β-strand15414
β-strand156-16272
α-helix163-1642
α-helix169B-1713
β-strand180-18452
β-strand18911
β-strand198-20362
β-strand206-215102
β-strand226-23052
α-helix231-2344
α-helix235-2417
Chain B: 11 helices, 18 β-strands
ElementResiduesLengthSheet
β-strand1715
β-strand20-2126
α-helix24-263
β-strand30-3677
β-strand38-48117
β-strand51-5447
α-helix56-594
α-helix61-633
β-strand64-6857
β-strand7218
β-strand81-90107
β-strand104-10857
α-helix1091
α-helix120-1212
β-strand12216
α-helix123-1253
α-helix130-1312
β-strand135-14066
β-strand15418
β-strand156-16276
α-helix163-1642
α-helix169A-1703
β-strand180-18456
β-strand18915
β-strand198-20366
β-strand206-215106
β-strand226-23056
α-helix231-2344
α-helix235-2417

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Tissue plasminogen activatorC, Dprotein7Homo sapiensP00750 (AlphaFold model)
Tissue plasminogen activatorA, Bprotein252Homo sapiensP00750 (AlphaFold model)
Sequence of entity 1 (C, D), FASTA
>1A5H_1 TISSUE PLASMINOGEN ACTIVATOR (chains C, D)
TCGLRQY
Sequence of entity 2 (A, B), FASTA
>1A5H_2 TISSUE PLASMINOGEN ACTIVATOR (chains A, B)
IKGGLFADIASHPWQAAIFAKHRRSPGERFLCGGILISSCWILSAAHCFQERFPPHHLTV
ILGRTYRVVPGEEEQKFEVEKYIVHKEFDDDTYDNDIALLQLKSDSSRCAQESSVVRTVC
LPPADLQLPDWTECELSGYGKHEALSPFYSERLKEAHVRLYPSSRCTSQHLLNRTVTDNM
LCAGDTRSGGPQANLHDACQGDSGGPLVCLNDGRMTLVGIISWGLGCGQKDVPGVYTKVT
NYLDWIRDNMRP

Ligands and cofactors

IDNameFormulaCopies
BBA2,7-bis-(4-amidinobenzylidene)-cycloheptan-1-oneC23 H28 N4 O2

Primary citation

Structural mapping of the active site specificity determinants of human tissue-type plasminogen activator. Implications for the design of low molecular weight substrates and inhibitors. Renatus, M., Bode, W., Huber, R. et al. J Biol Chem (1997) 272:21713-21719. DOI 10.1074/jbc.272.35.21713 · PubMed

Other PDB entries of the same protein (UniProt P00750 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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