_EC 3.4.22.15 cathepsin L. 69 PDB entries  
EC 3.-.-.- Hydrolases. [51,972 PDB entries]
EC 3.4.-.- Acting on peptide bonds (peptidases). [15,920 PDB entries]
EC 3.4.22.- Cysteine endopeptidases. [2,934 PDB entries]
EC 3.4.22.15 cathepsin L. [69 PDB entries]
1cjl

Reaction: Specificity close to that of papain. As compared to cathepsin B, cathepsin L exhibits higher activity toward protein substrates, but has little activity on Z-Arg-Arg-NHMec, and no peptidyl-dipeptidase activity.
Comments: A lysosomal enzyme that is readily inhibited by the diazomethane inhibitor Z-Phe-Phe-CHN2 or the epoxide inhibitor E-64. Belongs to peptidase family C1.
Links:   [IntEnz]   [ExPASy]   [KEGG]  

There are 69 PDB entries in enzyme class E.C.3.4.22.15

  PDB code Protein
1cjl
Crystal structure of a cysteine protease proform
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: human cdna. Expressed in: pichia pastoris. Expression_system_taxid: 4922. Other_details: first residue (thr) changed to ser
Chain: A (307 residues) CATH domain: 3.90.70.10
1cs8
Crystal structure of procathepsin l
Source: Homo sapiens. Human. Organism_taxid: 9606. Expressed in: pichia pastoris. Expression_system_taxid: 4922.
Chain: A (316 residues) CATH domain: 3.90.70.10
1icf
Crystal structure of mhc class ii associated p41 ii fragment in complex with cathepsin l
Source: Homo sapiens. Human. Organism_taxid: 9606. Organ: kidney. Organ: kidney
Chains: A, B, C, D (175 residues) CATH domain: 3.90.70.10
1mhw
Design of non-covalent inhibitors of human cathepsin l. From the 96- residue proregion to optimized tripeptides
Source: Homo sapiens. Human. Organism_taxid: 9606. Expressed in: pichia pastoris. Expression_system_taxid: 4922. Synthetic: yes
Chains: A, C, B, D (174 residues) CATH domain: 3.90.70.10
2nqd
Crystal structure of cysteine protease inhibitor, chagasin, in complex with human cathepsin l
Source: Trypanosoma cruzi. Organism_taxid: 5693. Expressed in: escherichia coli bl21. Expression_system_taxid: 511693. Homo sapiens. Human. Organism_taxid: 9606. Expressed in: pichia pastoris. Expression_system_taxid: 4922.
Chain: B (221 residues) CATH domain: 3.90.70.10
2p86
The high resolution crystal structure of rhodesain, the major cathepsin l protease from t. Brucei rhodesiense, bound to inhibitor k11002
Source: Trypanosoma brucei rhodesiense. Organism_taxid: 31286. Strain: rhodesiense. Gene: rhodesain. Expressed in: pichia pastoris. Expression_system_taxid: 4922.
Chain: A (215 residues) CATH domain: 3.90.70.10
2vhs
Cathsilicatein, a chimera
Source: Homo sapiens. Human. Organism_taxid: 9606. Expressed in: pichia pastoris. Expression_system_taxid: 4922. Other_details: this is chimera, engineered
Chains: A, B, C, D (215 residues) CATH domain: 3.90.70.10
2xu1
Cathepsin l with a nitrile inhibitor
Source: Homo sapiens. Human. Organism_taxid: 9606. Expressed in: spodoptera frugiperda. Expression_system_taxid: 7108. Expression_system_cell_line: sf9.
Chains: A, B, C, D (215 residues) CATH domain: 3.90.70.10
2xu3
Cathepsin l with a nitrile inhibitor
Source: Homo sapiens. Human. Organism_taxid: 9606. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (220 residues) CATH domain: 3.90.70.10
2xu4
Cathepsin l with a nitrile inhibitor
Source: Homo sapiens. Human. Organism_taxid: 9606. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (217 residues) CATH domain: 3.90.70.10
2xu5
Cathepsin l with a nitrile inhibitor
Source: Homo sapiens. Human. Organism_taxid: 9606. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (216 residues) CATH domain: 3.90.70.10
2yj2
Cathepsin l with a nitrile inhibitor
Source: Homo sapiens. Human. Organism_taxid: 9606. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (219 residues) CATH domain: 3.90.70.10
2yj8
Cathepsin l with a nitrile inhibitor
Source: Homo sapiens. Human. Organism_taxid: 9606. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (219 residues) CATH domain: 3.90.70.10
2yj9
Cathepsin l with a nitrile inhibitor
Source: Homo sapiens. Human. Organism_taxid: 9606. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (216 residues) CATH domain: 3.90.70.10
2yjb
Cathepsin l with a nitrile inhibitor
Source: Homo sapiens. Human. Organism_taxid: 9606. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (220 residues) CATH domain: 3.90.70.10
2yjc
Cathepsin l with a nitrile inhibitor
Source: Homo sapiens. Human. Organism_taxid: 9606. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (219 residues) CATH domain: 3.90.70.10
3bc3
Exploring inhibitor binding at the s subsites of cathepsin l
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl. Expressed in: pichia pastoris. Expression_system_taxid: 4922
Chains: A, B (215 residues) CATH domain: 3.90.70.10
3f75
Activated toxoplasma gondii cathepsin l (tgcpl) in complex with its propeptide
Source: Toxoplasma gondii. Organism_taxid: 383379. Strain: rh. Gene: cpl. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chains: A, P (223 residues) CATH domain: 3.90.70.10
3h89
A combined crystallographic and molecular dynamics study of cathepsin- l retro-binding inhibitors(compound 4)
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: catehpsin l. Expressed in: saccharomyces cerevisiae. Expression_system_taxid: 4932
Chains: A, B, C, D, E, F (215 residues) CATH domain: 3.90.70.10
3h8b
A combined crystallographic and molecular dynamics study of cathepsin- l retro-binding inhibitors(compound 9)
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: cathepsin l. Expressed in: saccharomyces cerevisiae. Expression_system_taxid: 4932
Chains: A, B, C, D, E, F (215 residues) CATH domain: 3.90.70.10
3h8c
A combined crystallographic and molecular dynamics study of cathepsin- l retro-binding inhibitors (compound 14)
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: cathepsin l. Expressed in: saccharomyces cerevisiae. Expression_system_taxid: 4932
Chains: A, B (215 residues) CATH domain: 3.90.70.10
3hha
Crystal structure of cathepsin l in complex with az12878478
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl1, ctsl. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chains: A, B, C, D (220 residues) CATH domain: 3.90.70.10
3hwn
Cathepsin l with az13010160
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl1, ctsl. Expressed in: escherichia coli. Expression_system_taxid: 562
Chains: A, B, C, D (213 residues) CATH domain: 3.90.70.10
3iv2
Crystal structure of mature apo-cathepsin l c25a mutant
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl1, ctsl. Expressed in: pichia pastoris. Expression_system_taxid: 4922
Chains: A, B (219 residues) CATH domain: 3.90.70.10
3k24
Crystal structure of mature apo-cathepsin l c25a mutant in complex with gln-leu-ala peptide
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl1, ctsl. Expressed in: pichia pastoris. Expression_system_taxid: 4922. Synthetic: yes. Other_details: synthetic peptide
Chains: A, B (220 residues) CATH domain: 3.90.70.10
3kse
Unreduced cathepsin l in complex with stefin a
Source: Homo sapiens. Human. Organism_taxid: 9606. Expressed in: pichia pastoris. Expression_system_taxid: 4922. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008.
Chains: A, B, C (220 residues) CATH domain: 3.90.70.10
3of8
Structural basis for reversible and irreversible inhibition of human cathepsin l by their respective dipeptidyl glyoxal and diazomethylketone inhibitors
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl1, ctsl. Expressed in: pichia pastoris. Expression_system_taxid: 4922.
Chain: A (221 residues) CATH domain: 3.90.70.10
3of9
Structural basis for irreversible inhibition of human cathepsin l by a diazomethylketone inhibitor
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl1, ctsl. Expressed in: pichia pastoris. Expression_system_taxid: 4922.
Chain: A (221 residues) CATH domain: 3.90.70.10
3qj3
Structure of digestive procathepsin l2 proteinase from tenebrio molitor larval midgut
Source: Tenebrio molitor. Yellow mealworm beetle. Organism_taxid: 7067. Gene: pcal2. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chains: A, B (319 residues) CATH domain: 3.90.70.10
3qt4
Structure of digestive procathepsin l 3 of tenebrio molitor larval midgut
Source: Tenebrio molitor. Yellow mealworm beetle. Organism_taxid: 7067. Gene: pcal3. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (304 residues) CATH domain: 3.90.70.10
4axl
Human cathepsin l apo form with zn
Source: Homo sapiens. Human. Organism_taxid: 9606. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (220 residues) CATH domain: 3.90.70.10
4axm
Triazine cathepsin inhibitor complex
Source: Homo sapiens. Human. Organism_taxid: 9606. Expressed in: escherichia coli. Expression_system_taxid: 562
Chains: A, B, F, I, L, O (218 residues) CATH domain: 3.90.70.10
5f02
Cathepsin l in complex with (2s,4r)-4-(2-chloro-4-methoxy- benzenesulfonyl)-1-[3-(5-chloro-pyridin-2-yl)-azetidine-3-carbonyl]- pyrrolidine-2-carboxylic acid (1-cyano-cyclopropyl)-amide
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (219 residues) CATH domain: 3.90.70.10
5i4h
Caught in the act: the crystal structure of cleaved cathepsin l bound to the active site of cathepsin l
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella pastoris gs115. Expression_system_taxid: 644223. Expression_system_taxid: 644223
Chains: A, B (106 residues)
5mae
Cathepsin l in complex with (2s,4r)-4-(2-chloro-4-methoxy- benzenesulfonyl)-1-[3-(5-chloro-pyridin-2-yl)-azetidine-3-carbonyl]- pyrrolidine-2-car boxylic acid (1-cyano-cyclopropyl)-amide
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (217 residues)
5maj
Cathepsin l in complex with 4-[cyclopentyl(imidazo[1,2-a]pyridin-2- ylmethyl)amino]-6-morpholino-1,3,5-triazine-2-carbonitrile
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (219 residues)
5mqy
Cathepsin l in complex with 4-[1,3-benzodioxol-5-ylmethyl(2- phenoxyethyl)amino]-5-fluoropyrimidine-2-carbonitrile
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (216 residues)
6ezp
Cathepsin l in complex with (3s,14e)-19-chloro-n-(1-cyanocyclopropyl)- 5-oxo-12,17-dioxa-4-azatricyclo[16.2.2.06,11]docosa-1(21),6(11),7,9, 14,18(22),19-heptaene-3-carboxamide
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (217 residues)
6ezx
Cathepsin l in complex with (3s,14e)-19-chloro-n-(1-cyanocyclopropyl)- 5-oxo-17-oxa-4-azatricyclo[16.2.2.06,11]docosa-1(21),6,8,10,14, 18(22),19-heptaene-3-carboxamide
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: escherichia coli. Expression_system_taxid: 562
Chains: A, B (217 residues)
6f06
Cathepsin l in complex with (3s,14e)-8-(azetidin-3-yl)-19-chloro-n-(1- cyanocyclopropyl)-5-oxo-12,17-dioxa-4-azatricyclo[16.2.2.06, 11]docosa-1(21),6,8,10,14,18(22),19-heptaene-3-carboxamide
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: escherichia coli. Expression_system_taxid: 562
Chains: A, B (220 residues)
6jd0
Structure of mutant human cathepsin l, engineered for gag binding
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (314 residues)
6jd8
Structure of a proline specific mutant of human cathepsin l
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (314 residues)
7avm
Crystal structure of pro-rhodesain c150a
Source: Trypanosoma brucei rhodesiense. Organism_taxid: 31286. Gene: rhodesain. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008
Chain: A (307 residues)
7qkb
Crystal structure of human cathepsin l in complex with covalently bound gc376
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223
Chains: A, B, C, D (220 residues)
7qkc
Crystal structure of human cathepsin l after incubation with sulfo- calpeptin
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223
Chains: A, B, C, D (220 residues)
7qkd
Crystal structure of human cathepsin l in complex with covalently bound mg132
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223
Chains: A, B, C, D (220 residues)
7w33
The crystal structure of human ctsl in complex with 14a
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008
Chain: A (220 residues)
7w34
The crystal structure of human ctsl in complex with 14b
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008
Chain: A (220 residues)
7z3t
Crystal structure of apo human cathepsin l
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223
Chains: A, B, C, D (220 residues)
7z58
Crystal structure of human cathepsin l in complex with covalently bound calpeptin
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223
Chains: A, B, C, D (220 residues)
7zs7
Crystal structure of human cathepsin l with covalently bound calpain inhibitor vi
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223
Chains: A, B, C, D (220 residues)
7zvf
Crystal structure of human cathepsin l in complex with covalently bound clik148
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223
Chains: A, B, C, D (220 residues)
7zxa
Crystal structure of human cathepsin l with covalently bound aloxistatin (e-64d)
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223
Chains: A, B, C, D (220 residues)
8a4u
Crystal structure of human cathepsin l with caa0225
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223
Chains: A, B, C, D (220 residues)
8a4v
Crystal structure of human cathepsin l with covalently bound e-64
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223
Chains: A, B, C, D (220 residues)
8a4w
Crystal structure of human cathepsin l with covalently bound cathepsin l inhibitor iv
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223
Chains: A, B, C, D (220 residues)
8a4x
Crystal structure of human cathepsin l with covalently bound calpain inhibitor iii
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223
Chains: A, B, C, D (220 residues)
8a5b
Crystal structure of human cathepsin l in complex with covalently bound mg-101
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223. Synthetic: yes. Synthetic construct. Organism_taxid: 32630
Chains: A, B, C, D (220 residues)
8ahv
Crystal structure of human cathepsin l in complex with calpain inhibitor xii
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223
Chains: A, B, C, D (220 residues)
8b4f
Crystal structure of human cathepsin l forming a thiohemiacetal with n-boc-2-aminoacetaldehyde
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223
Chains: A, B, C, D (220 residues)
8c77
Human cathepsin l after reaction with the thiocarbazate inhibitor cid 16725315
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223
Chains: A, B, C, D (220 residues)
8gx2
The crystal structure of human ctsl in complex with 14c
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008
Chains: A, B (220 residues)
8het
Crystal structure of ctsl in complex with e64d
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (219 residues)
8hfv
Crystal structure of ctsl in complex with k777
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl. Expressed in: escherichia coli. Expression_system_taxid: 562
Chains: A, B, C, D (220 residues)
8ofa
Crystal structure of human cathepsin l interacting with tosyl phenylalanyl chloromethyl ketone (tpck)
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223
Chains: A, B, C, D (220 residues)
8oza
Human cathepsin l in complex with covalently bound ca-074 methyl ester
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223
Chains: A, B, C, D (220 residues)
8prx
Crystal structure of human cathepsin l after reaction with the bound ketoamide inhibitor 13b
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223
Chains: A, B, C, D (220 residues)
8qkb
Crystal structure of human cathepsin l in complex with the vinyl sulfone inhibitor k777
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl, ctsl1. Expressed in: komagataella phaffii gs115. Expression_system_taxid: 644223
Chains: A, B, C, D (220 residues)
8uac
Cathepsin l in complex with ac1115
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: ctsl. Expressed in: escherichia coli 'bl21-gold(de3)plyss ag'. Expression_system_taxid: 866768
Chains: A, B (215 residues)