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- PDB-8x4q: Apo structure of L-tryptophan specific decarboxylase PsiD -

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Basic information

Entry
Database: PDB / ID: 8x4q
TitleApo structure of L-tryptophan specific decarboxylase PsiD
Components(L-tryptophan decarboxylase) x 2
KeywordsOXIDOREDUCTASE / decarboxylase / psilocybin / L-tryptophan / psilocin / tryptamine
Function / homology
Function and homology information


L-tryptophan decarboxylase / L-tryptophan decarboxylase activity / psilocybin biosynthetic process / phosphatidylserine decarboxylase activity / phosphatidylethanolamine biosynthetic process / mitochondrion
Similarity search - Function
L-tryptophan decarboxylase PsiD-like / Phophatidylserine decarboxylase / Phosphatidylserine decarboxylase-related / Phosphatidylserine decarboxylase
Similarity search - Domain/homology
L-tryptophan decarboxylase
Similarity search - Component
Biological speciesPsilocybe cubensis (magic mushroom)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.55 Å
AuthorsMeng, C.Y. / Wen, Y. / Guo, W.T. / Wu, B.X.
Funding support1items
OrganizationGrant numberCountry
Not funded
CitationJournal: Nat Commun / Year: 2025
Title: Structural basis for psilocybin biosynthesis.
Authors: Meng, C. / Guo, W. / Xiao, C. / Wen, Y. / Zhu, X. / Zhang, Q. / Liang, Y. / Li, H. / Xu, S. / Qiu, Y. / Chen, H. / Lin, W.J. / Wu, B.
History
DepositionNov 15, 2023Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Nov 20, 2024Provider: repository / Type: Initial release
Revision 1.1Apr 2, 2025Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: L-tryptophan decarboxylase
C: L-tryptophan decarboxylase
E: L-tryptophan decarboxylase
G: L-tryptophan decarboxylase
I: L-tryptophan decarboxylase
K: L-tryptophan decarboxylase
L: L-tryptophan decarboxylase
J: L-tryptophan decarboxylase
H: L-tryptophan decarboxylase
F: L-tryptophan decarboxylase
D: L-tryptophan decarboxylase
B: L-tryptophan decarboxylase


Theoretical massNumber of molelcules
Total (without water)298,23612
Polymers298,23612
Non-polymers00
Water15,637868
1
A: L-tryptophan decarboxylase
B: L-tryptophan decarboxylase


Theoretical massNumber of molelcules
Total (without water)49,7062
Polymers49,7062
Non-polymers00
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3790 Å2
ΔGint-23 kcal/mol
Surface area16200 Å2
MethodPISA
2
C: L-tryptophan decarboxylase
D: L-tryptophan decarboxylase


Theoretical massNumber of molelcules
Total (without water)49,7062
Polymers49,7062
Non-polymers00
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3850 Å2
ΔGint-23 kcal/mol
Surface area15810 Å2
MethodPISA
3
E: L-tryptophan decarboxylase
F: L-tryptophan decarboxylase


Theoretical massNumber of molelcules
Total (without water)49,7062
Polymers49,7062
Non-polymers00
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3830 Å2
ΔGint-24 kcal/mol
Surface area15820 Å2
MethodPISA
4
G: L-tryptophan decarboxylase
H: L-tryptophan decarboxylase


Theoretical massNumber of molelcules
Total (without water)49,7062
Polymers49,7062
Non-polymers00
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3830 Å2
ΔGint-19 kcal/mol
Surface area15750 Å2
MethodPISA
5
I: L-tryptophan decarboxylase
J: L-tryptophan decarboxylase


Theoretical massNumber of molelcules
Total (without water)49,7062
Polymers49,7062
Non-polymers00
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3920 Å2
ΔGint-23 kcal/mol
Surface area16180 Å2
MethodPISA
6
K: L-tryptophan decarboxylase
L: L-tryptophan decarboxylase


Theoretical massNumber of molelcules
Total (without water)49,7062
Polymers49,7062
Non-polymers00
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3890 Å2
ΔGint-23 kcal/mol
Surface area16200 Å2
MethodPISA
Unit cell
Length a, b, c (Å)82.285, 120.763, 128.456
Angle α, β, γ (deg.)90.000, 99.432, 90.000
Int Tables number4
Space group name H-MP1211
Space group name HallP2yb
Symmetry operation#1: x,y,z
#2: -x,y+1/2,-z

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Components

#1: Protein
L-tryptophan decarboxylase


Mass: 45684.344 Da / Num. of mol.: 6
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Psilocybe cubensis (magic mushroom) / Gene: psiD / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: P0DPA6
#2: Protein/peptide
L-tryptophan decarboxylase / Psilocybin biosynthesis decarboxylase


Mass: 4021.680 Da / Num. of mol.: 6
Source method: isolated from a genetically manipulated source
Details: The S403 was processed to a pyruvoyl group / Source: (gene. exp.) Psilocybe cubensis (magic mushroom) / Gene: psiD / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: P0DPA6, L-tryptophan decarboxylase
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 868 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestY
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: 2.11 Å3/Da / Density % sol: 41.72 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop
Details: 0.2 M Ammonium acetate, 0.1 M Sodium citrate pH 5.6, 30% w/v Polyethylene glycol 4,000

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: SSRF / Beamline: BL18U1 / Wavelength: 0.97853 Å
DetectorType: DECTRIS PILATUS 6M / Detector: PIXEL / Date: Jul 10, 2023
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.97853 Å / Relative weight: 1
ReflectionResolution: 2.55→30 Å / Num. obs: 80722 / % possible obs: 99.9 % / Redundancy: 6.6 % / Biso Wilson estimate: 37.49 Å2 / CC1/2: 0.992 / Rmerge(I) obs: 0.168 / Rpim(I) all: 0.07 / Rrim(I) all: 0.182 / Net I/σ(I): 9.1
Reflection shellResolution: 2.55→2.69 Å / Redundancy: 6.6 % / Rmerge(I) obs: 0.808 / Mean I/σ(I) obs: 2.2 / Num. unique obs: 11754 / CC1/2: 0.755 / Rpim(I) all: 0.34 / Rrim(I) all: 0.878 / % possible all: 100

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Processing

Software
NameVersionClassification
PHENIX1.21rc1_5156refinement
autoPROC1.20.1_4487data processing
XDSdata reduction
SCALAdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: AlphaFold

Resolution: 2.55→29.37 Å / SU ML: 0.3198 / Cross valid method: FREE R-VALUE / σ(F): 1.34 / Phase error: 23.0393
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
RfactorNum. reflection% reflection
Rfree0.2224 4090 5.07 %
Rwork0.1722 76589 -
obs0.1747 80679 99.94 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.1 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso mean: 34.41 Å2
Refinement stepCycle: LAST / Resolution: 2.55→29.37 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms18150 0 30 868 19048
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.007618656
X-RAY DIFFRACTIONf_angle_d0.893625311
X-RAY DIFFRACTIONf_chiral_restr0.05432715
X-RAY DIFFRACTIONf_plane_restr0.00893346
X-RAY DIFFRACTIONf_dihedral_angle_d6.62472483
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
2.55-2.580.33091310.25882654X-RAY DIFFRACTION99.96
2.58-2.610.28331500.24392584X-RAY DIFFRACTION99.96
2.61-2.640.30531450.23752647X-RAY DIFFRACTION99.93
2.64-2.680.27731340.23742627X-RAY DIFFRACTION99.93
2.68-2.720.28431530.22812616X-RAY DIFFRACTION99.93
2.72-2.750.24741410.21842668X-RAY DIFFRACTION99.96
2.75-2.80.26381340.20632617X-RAY DIFFRACTION99.96
2.8-2.840.27061430.20382616X-RAY DIFFRACTION100
2.84-2.890.29861310.20972632X-RAY DIFFRACTION99.96
2.89-2.940.28171390.2112676X-RAY DIFFRACTION99.96
2.94-2.990.28471270.21842622X-RAY DIFFRACTION99.96
2.99-3.050.2771400.21282663X-RAY DIFFRACTION99.96
3.05-3.110.27021220.20712618X-RAY DIFFRACTION100
3.11-3.180.27411560.21082642X-RAY DIFFRACTION100
3.18-3.250.271410.20012594X-RAY DIFFRACTION100
3.25-3.330.27481390.19382666X-RAY DIFFRACTION100
3.33-3.420.2331560.19122596X-RAY DIFFRACTION100
3.42-3.520.22861330.18252654X-RAY DIFFRACTION99.86
3.52-3.630.23841220.1682661X-RAY DIFFRACTION99.96
3.64-3.760.21631400.16232655X-RAY DIFFRACTION100
3.76-3.910.19281520.15542634X-RAY DIFFRACTION99.93
3.91-4.090.1861460.14742626X-RAY DIFFRACTION100
4.09-4.310.1721420.13532657X-RAY DIFFRACTION99.96
4.31-4.580.20341350.13352656X-RAY DIFFRACTION100
4.58-4.930.17181410.12932634X-RAY DIFFRACTION100
4.93-5.420.17821420.13892659X-RAY DIFFRACTION99.82
5.42-6.20.20211390.15272664X-RAY DIFFRACTION99.96
6.2-7.790.18551610.14972656X-RAY DIFFRACTION99.96
7.79-29.370.1651550.13522695X-RAY DIFFRACTION99.3
Refinement TLS params.Method: refined / Origin x: -22.7452443195 Å / Origin y: -3.02823465971 Å / Origin z: 32.9501162156 Å
111213212223313233
T0.215370723372 Å2-0.00578016033594 Å2-0.0146048716575 Å2-0.206523051865 Å20.0065700167341 Å2--0.220154456457 Å2
L0.129815089746 °20.00277737045156 °2-0.0864593679605 °2-0.0939426813878 °20.104630416692 °2--0.202456345045 °2
S0.00283665188483 Å °-0.0166999473194 Å °0.0126136714709 Å °0.0126198073539 Å °0.0187844440467 Å °-0.0267564125411 Å °-0.000260732794135 Å °0.0431847523588 Å °-0.0205112012782 Å °
Refinement TLS groupSelection details: all

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