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- PDB-2h4y: Crystal structure of human caspase-1 (Arg286->Lys) in complex wit... -

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Basic information

Entry
Database: PDB / ID: 2h4y
TitleCrystal structure of human caspase-1 (Arg286->Lys) in complex with 3-[2-(2-benzyloxycarbonylamino-3-methyl-butyrylamino)-propionylamino]-4-oxo-pentanoic acid (z-VAD-FMK)
Components
  • (Caspase-1) x 2
  • N-[(benzyloxy)carbonyl]-L-valyl-N-[(2S)-1-carboxy-4-fluoro-3-oxobutan-2-yl]-L-alaninamide
KeywordsHYDROLASE/HYDROLASE INHIBITOR / allosteric site / dimer interface / HYDROLASE / HYDROLASE-HYDROLASE INHIBITOR COMPLEX
Function / homology
Function and homology information


caspase-1 / protease inhibitor complex / AIM2 inflammasome complex assembly / The AIM2 inflammasome / AIM2 inflammasome complex / IPAF inflammasome complex / The IPAF inflammasome / icosanoid biosynthetic process / NLRP1 inflammasome complex / canonical inflammasome complex ...caspase-1 / protease inhibitor complex / AIM2 inflammasome complex assembly / The AIM2 inflammasome / AIM2 inflammasome complex / IPAF inflammasome complex / The IPAF inflammasome / icosanoid biosynthetic process / NLRP1 inflammasome complex / canonical inflammasome complex / positive regulation of interleukin-18 production / CARD domain binding / cytokine precursor processing / NLRP3 inflammasome complex / osmosensory signaling pathway / Interleukin-1 processing / Interleukin-37 signaling / positive regulation of tumor necrosis factor-mediated signaling pathway / pattern recognition receptor signaling pathway / cysteine-type endopeptidase activator activity involved in apoptotic process / signaling receptor ligand precursor processing / TP53 Regulates Transcription of Caspase Activators and Caspases / pyroptotic inflammatory response / cytokine binding / protein autoprocessing / The NLRP3 inflammasome / Pyroptosis / Purinergic signaling in leishmaniasis infection / protein maturation / positive regulation of interleukin-1 beta production / cellular response to mechanical stimulus / NOD1/2 Signaling Pathway / cellular response to type II interferon / kinase binding / positive regulation of inflammatory response / SARS-CoV-1 activates/modulates innate immune responses / cellular response to lipopolysaccharide / regulation of inflammatory response / regulation of apoptotic process / endopeptidase activity / defense response to virus / microtubule / positive regulation of canonical NF-kappaB signal transduction / defense response to bacterium / cysteine-type endopeptidase activity / apoptotic process / nucleolus / signal transduction / protein-containing complex / proteolysis / identical protein binding / plasma membrane / cytosol / cytoplasm
Similarity search - Function
Caspase recruitment domain / Caspase-like / CARD domain / CARD caspase recruitment domain profile. / Caspase recruitment domain / Rossmann fold - #1460 / Peptidase C14 family / Peptidase family C14A, His active site / Caspase family histidine active site. / Peptidase C14, caspase non-catalytic subunit p10 ...Caspase recruitment domain / Caspase-like / CARD domain / CARD caspase recruitment domain profile. / Caspase recruitment domain / Rossmann fold - #1460 / Peptidase C14 family / Peptidase family C14A, His active site / Caspase family histidine active site. / Peptidase C14, caspase non-catalytic subunit p10 / Peptidase family C14A, cysteine active site / Caspase family cysteine active site. / Caspase family p10 domain profile. / Peptidase C14A, caspase catalytic domain / Caspase, interleukin-1 beta converting enzyme (ICE) homologues / Peptidase C14, p20 domain / Caspase family p20 domain profile. / : / Caspase domain / Caspase-like domain superfamily / Death-like domain superfamily / Alpha-Beta Plaits / Rossmann fold / 2-Layer Sandwich / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
N-[(benzyloxy)carbonyl]-L-valyl-N-[(1S)-1-(carboxymethyl)-3-fluoro-2-oxopropyl]-L-alaninamide / Caspase-1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 1.9 Å
AuthorsScheer, J.M. / Wells, J.A. / Romanowski, M.J.
CitationJournal: J.Mol.Biol. / Year: 2008
Title: An allosteric circuit in caspase-1.
Authors: Datta, D. / Scheer, J.M. / Romanowski, M.J. / Wells, J.A.
History
DepositionMay 25, 2006Deposition site: RCSB / Processing site: RCSB
Revision 1.0Mar 11, 2008Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Advisory / Atomic model ...Advisory / Atomic model / Database references / Derived calculations / Non-polymer description / Structure summary / Version format compliance
Revision 1.2Dec 12, 2012Group: Other
Revision 1.3Oct 20, 2021Group: Database references / Derived calculations / Category: database_2 / struct_conn / struct_ref_seq_dif
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _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_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_ref_seq_dif.details
Revision 1.4Aug 30, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model
Revision 1.5Oct 30, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Caspase-1
B: Caspase-1
C: N-[(benzyloxy)carbonyl]-L-valyl-N-[(2S)-1-carboxy-4-fluoro-3-oxobutan-2-yl]-L-alaninamide


Theoretical massNumber of molelcules
Total (without water)30,5723
Polymers30,5723
Non-polymers00
Water3,405189
1
A: Caspase-1
B: Caspase-1
C: N-[(benzyloxy)carbonyl]-L-valyl-N-[(2S)-1-carboxy-4-fluoro-3-oxobutan-2-yl]-L-alaninamide

A: Caspase-1
B: Caspase-1
C: N-[(benzyloxy)carbonyl]-L-valyl-N-[(2S)-1-carboxy-4-fluoro-3-oxobutan-2-yl]-L-alaninamide


Theoretical massNumber of molelcules
Total (without water)61,1456
Polymers61,1456
Non-polymers00
Water1086
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation8_775-y+2,-x+2,-z+1/21
Buried area17290 Å2
ΔGint-96 kcal/mol
Surface area20140 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)63.343, 63.343, 141.607
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number96
Space group name H-MP43212
Components on special symmetry positions
IDModelComponents
11B-430-

HOH

DetailsHeterotetramer (dimer of two heterodimers). Each heterodimer is represented by chains A (the p20 subunit) and B (the p10 subunit) of human caspase-1.

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Components

#1: Protein Caspase-1


Mass: 19841.824 Da / Num. of mol.: 1 / Fragment: p20 subunit, residues 120-297 / Mutation: R286K
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CASP1, IL1BC, IL1BCE / Plasmid: pRSET / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3) Codon+ / References: UniProt: P29466, caspase-1
#2: Protein Caspase-1


Mass: 10258.755 Da / Num. of mol.: 1 / Fragment: p10 subunit, residues 317-404
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CASP1, IL1BC, IL1BCE / Plasmid: pRSET / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3) Codon+ / References: UniProt: P29466, caspase-1
#3: Protein/peptide N-[(benzyloxy)carbonyl]-L-valyl-N-[(2S)-1-carboxy-4-fluoro-3-oxobutan-2-yl]-L-alaninamide


Type: Peptide-like / Class: Inhibitor / Mass: 471.907 Da / Num. of mol.: 1 / Source method: obtained synthetically
References: N-[(benzyloxy)carbonyl]-L-valyl-N-[(1S)-1-(carboxymethyl)-3-fluoro-2-oxopropyl]-L-alaninamide
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 189 / Source method: isolated from a natural source / Formula: H2O
Has protein modificationY

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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: 2.36 Å3/Da / Density % sol: 47.85 %
Crystal growTemperature: 277 K / Method: vapor diffusion, hanging drop / pH: 6
Details: 0.1 M PIPES, 200 mM Li2SO4, 25% PEG 2000 MME, 10 mM DTT, 3 mM NaN3, 2 mM MgCl2, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K

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Data collection

DiffractionMean temperature: 110 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU300 / Wavelength: 1.54 Å
DetectorType: RIGAKU RAXIS IV / Detector: IMAGE PLATE / Date: Mar 17, 2005
RadiationMonochromator: Ni FILTER / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.54 Å / Relative weight: 1
ReflectionResolution: 1.9→20 Å / Num. obs: 22772 / % possible obs: 96.8 % / Observed criterion σ(F): 1 / Observed criterion σ(I): 5
Reflection shellResolution: 1.9→1.97 Å / % possible all: 90.6

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Processing

Software
NameVersionClassification
REFMAC5.1.19refinement
CrystalCleardata reduction
d*TREKdata scaling
AMoREphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1SC3

1sc3


Resolution: 1.9→20 Å / Cor.coef. Fo:Fc: 0.945 / Cor.coef. Fo:Fc free: 0.924 / SU B: 4.111 / SU ML: 0.117 / TLS residual ADP flag: LIKELY RESIDUAL / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.186 / ESU R Free: 0.159 / Stereochemistry target values: MAXIMUM LIKELIHOOD
RfactorNum. reflection% reflectionSelection details
Rfree0.23548 1070 5.1 %RANDOM
Rwork0.20314 ---
all0.228 20805 --
obs0.20481 19735 88.48 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso mean: 21.984 Å2
Baniso -1Baniso -2Baniso -3
1--0.67 Å20 Å20 Å2
2---0.67 Å20 Å2
3---1.33 Å2
Refinement stepCycle: LAST / Resolution: 1.9→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2019 0 0 189 2208
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0060.0212084
X-RAY DIFFRACTIONr_angle_refined_deg0.8791.9592808
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.2275247
X-RAY DIFFRACTIONr_chiral_restr0.0590.2317
X-RAY DIFFRACTIONr_gen_planes_refined0.0020.021536
X-RAY DIFFRACTIONr_nbd_refined0.1610.2984
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.0790.2172
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.140.263
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.0710.228
X-RAY DIFFRACTIONr_mcbond_it1.3212.51251
X-RAY DIFFRACTIONr_mcangle_it2.30552043
X-RAY DIFFRACTIONr_scbond_it1.5372.5833
X-RAY DIFFRACTIONr_scangle_it2.4575765
LS refinement shellResolution: 1.9→1.966 Å / Total num. of bins used: 15 /
RfactorNum. reflection
Rfree0.338 95
Rwork0.301 1587
Refinement TLS params.Method: refined / Origin x: 60.57 Å / Origin y: 48.496 Å / Origin z: 32.0397 Å
111213212223313233
T0.0398 Å2-0.0067 Å2-0.0107 Å2-0.0418 Å2-0.0165 Å2--0.0309 Å2
L0.7974 °20.1887 °20.0466 °2-0.7509 °2-0.0831 °2--0.6765 °2
S-0.0139 Å °0.0489 Å °-0.0693 Å °-0.0273 Å °0.0248 Å °-0.0015 Å °0.0633 Å °-0.1155 Å °-0.0109 Å °
Refinement TLS group
IDRefine-IDRefine TLS-IDAuth asym-IDLabel asym-IDAuth seq-IDLabel seq-ID
1X-RAY DIFFRACTION1AA132 - 14513 - 26
2X-RAY DIFFRACTION1AA149 - 29730 - 178
3X-RAY DIFFRACTION1BB318 - 4042 - 88
4X-RAY DIFFRACTION1AC5011

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