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- PDB-1tl9: High resolution crystal structure of calpain I protease core in c... -

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Basic information

Entry
Database: PDB / ID: 1tl9
TitleHigh resolution crystal structure of calpain I protease core in complex with leupeptin
Components
  • Calpain 1, large [catalytic] subunit
  • leupeptin inhibitor
KeywordsHYDROLASE/HYDROLASE INHIBITOR / Covalently-linked inhibitor at the active site cysteine forms a hemithioacetal / hydrolase / HYDROLASE-HYDROLASE INHIBITOR COMPLEX
Function / homology
Function and homology information


calpain-1 / Degradation of the extracellular matrix / positive regulation of leukocyte tethering or rolling / mammary gland involution / calcium-dependent cysteine-type endopeptidase activity / receptor catabolic process / negative regulation of actin filament polymerization / self proteolysis / cornified envelope / regulation of catalytic activity ...calpain-1 / Degradation of the extracellular matrix / positive regulation of leukocyte tethering or rolling / mammary gland involution / calcium-dependent cysteine-type endopeptidase activity / receptor catabolic process / negative regulation of actin filament polymerization / self proteolysis / cornified envelope / regulation of catalytic activity / positive regulation of vascular permeability / response to arsenic-containing substance / response to angiotensin / negative regulation of non-canonical NF-kappaB signal transduction / Neutrophil degranulation / positive regulation of cardiac muscle cell apoptotic process / protein autoprocessing / cytoskeletal protein binding / protein catabolic process / cellular response to hydrogen peroxide / peptidase activity / lysosome / calcium ion binding / enzyme binding / mitochondrion / proteolysis / membrane / plasma membrane / cytosol / cytoplasm
Similarity search - Function
Calpain subdomain III / Peptidase C2, calpain, domain III / calpain_III / Peptidase C2, calpain, large subunit, domain III / Peptidase C2, calpain family / Calpain large subunit, domain III superfamily / Calpain large subunit, domain III / Peptidase C2, calpain, catalytic domain / Calpain family cysteine protease / Cysteine proteinase, calpain-type, catalytic domain profile. ...Calpain subdomain III / Peptidase C2, calpain, domain III / calpain_III / Peptidase C2, calpain, large subunit, domain III / Peptidase C2, calpain family / Calpain large subunit, domain III superfamily / Calpain large subunit, domain III / Peptidase C2, calpain, catalytic domain / Calpain family cysteine protease / Cysteine proteinase, calpain-type, catalytic domain profile. / Calpain-like thiol protease family. / EF-hand domain pair / Cysteine proteinases / Cysteine peptidase, cysteine active site / Eukaryotic thiol (cysteine) proteases cysteine active site. / Cathepsin B; Chain A / Papain-like cysteine peptidase superfamily / EF-Hand 1, calcium-binding site / EF-hand calcium-binding domain. / EF-hand calcium-binding domain profile. / EF-hand domain / EF-hand domain pair / Alpha-Beta Complex / Alpha Beta
Similarity search - Domain/homology
LEUPEPTIN / : / Calpain-1 catalytic subunit
Similarity search - Component
Biological speciesRattus norvegicus (Norway rat)
Actinomycetes Streptomyces roseus MA 839-A1 (bacteria)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 1.8 Å
AuthorsMoldoveanu, T. / Campbell, R.L. / Cuerrier, D. / Davies, P.L.
Citation
Journal: J.Mol.Biol. / Year: 2004
Title: Crystal Structures of Calpain-E64 and -Leupeptin Inhibitor Complexes Reveal Mobile Loops Gating the Active Site
Authors: Moldoveanu, T. / Campbell, R.L. / Cuerrier, D. / Davies, P.L.
#1: Journal: Cell(Cambridge,Mass.) / Year: 2002
Title: A calcium switch aligns the active site of calpain
Authors: Moldoveanu, T. / Hosfield, C.M. / Lim, D. / Elce, J.S. / Jia, Z. / Davies, P.L.
#2: Journal: Nat.Struct.Mol.Biol. / Year: 2003
Title: calpain silencing by a reversible intrinsic mechanism
Authors: Moldoveanu, T. / Hosfield, C.M. / Lim, D. / Jia, Z. / Davies, P.L.
History
DepositionJun 9, 2004Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 2, 2004Provider: repository / Type: Initial release
Revision 1.1Apr 30, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Atomic model / Database references ...Atomic model / Database references / Derived calculations / Non-polymer description / Structure summary / Version format compliance
Revision 1.3Dec 12, 2012Group: Other
Revision 1.4Apr 3, 2024Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / pdbx_struct_conn_angle / struct_conn / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.conn_type_id / _struct_conn.id / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Calpain 1, large [catalytic] subunit
B: leupeptin inhibitor
hetero molecules


Theoretical massNumber of molelcules
Total (without water)39,3144
Polymers39,2342
Non-polymers802
Water5,170287
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area1170 Å2
ΔGint-28 kcal/mol
Surface area15190 Å2
MethodPISA
Unit cell
Length a, b, c (Å)55.670, 68.160, 91.140
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein Calpain 1, large [catalytic] subunit / / Calcium-activated neutral proteinase / CANP / Mu-type / muCANP / Micromolar-calpain


Mass: 38804.551 Da / Num. of mol.: 1 / Fragment: residues 27-356
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Rattus norvegicus (Norway rat) / Gene: CAPN1, CLS1 / Plasmid: pET24d / Species (production host): Escherichia coli / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21 DE3 / References: UniProt: P97571, calpain-1
#2: Protein/peptide leupeptin inhibitor /


Type: Oligopeptide / Class: Enzyme inhibitor / Mass: 429.578 Da / Num. of mol.: 1 / Source method: obtained synthetically
Source: (synth.) Actinomycetes Streptomyces roseus MA 839-A1 (bacteria)
References: NOR: NOR00487, LEUPEPTIN
#3: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Ca
#4: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 287 / Source method: isolated from a natural source / Formula: H2O
Compound detailsTHE LEUPEPTIN IS COVALENTLY CONNECTED TO ACTIVE_SITE CYS 115 OF THE ENZYME TO FORM A HEMITHIOACETAL.
Sequence detailsTHERE IS A DISCREPANCY IN THE NORINE AND PDB NUMBERING, AS NORINE COUNTS ACE AND LEU TOGETHER AS ...THERE IS A DISCREPANCY IN THE NORINE AND PDB NUMBERING, AS NORINE COUNTS ACE AND LEU TOGETHER AS ONE RESIDUE. SO THE DBREF WILL REPORT 4 PDB RESIDUES MATCHING NORINE 3 RESIDUE

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.2 Å3/Da / Density % sol: 44.17 %
Crystal growpH: 6
Details: sodium chloride, calcium chloride, MES, pH 6.0, VAPOR DIFFUSION, HANGING DROP, pH 6.00

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU200 / Wavelength: 1.5418
DetectorType: MARRESEARCH / Detector: IMAGE PLATE / Date: Apr 2, 2004 / Details: OSMIC MIRRORS
RadiationMonochromator: OSMIC MIRRORS / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 1.8→50 Å / Num. obs: 31962 / % possible obs: 95 % / Observed criterion σ(I): 2 / Rmerge(I) obs: 0.069 / Rsym value: 0.072
Reflection shellResolution: 1.8→1.86 Å / Rmerge(I) obs: 0.147 / Mean I/σ(I) obs: 14.9 / Num. measured obs: 3221 / Rsym value: 0.152

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Processing

Software
NameVersionClassification
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
CNS& XFITrefinement
XFITdata reduction
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1KXRB

Resolution: 1.8→50 Å / Cross valid method: THROUGHOUT / σ(F): 2 / Stereochemistry target values: ENGH & HUBER
RfactorNum. reflection% reflectionSelection details
Rfree0.244 1573 -RANDOM
Rwork0.217 ---
obs0.217 31658 93.3 %-
all-33934 --
Refinement stepCycle: LAST / Resolution: 1.8→50 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2617 0 2 287 2906
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.012
X-RAY DIFFRACTIONc_bond_d_na
X-RAY DIFFRACTIONc_bond_d_prot
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_d_na
X-RAY DIFFRACTIONc_angle_d_prot
X-RAY DIFFRACTIONc_angle_deg
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it
X-RAY DIFFRACTIONc_mcangle_it
X-RAY DIFFRACTIONc_scbond_it
X-RAY DIFFRACTIONc_scangle_it

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