29MT | pdb_000029mt

Sesterterpene Synthase from Streptomyces mobaraensis (Sestermobaraene Synthase, SmTS1, apo)

PDB DOI: https://doi.org/10.2210/pdb29MT/pdb

Classification: LYASE
Organism(s): Streptomyces mobaraensis
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2026-03-23 Released: 2026-09-02
Deposition Author(s): Troycke, P., Li, H., Yang, K., Dickschat, J.S., Groll, M.
Funding Organization(s): German Research Foundation (DFG)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.70 Å
R-Value Free:
0.202 (Depositor), 0.211 (DCC)
R-Value Work:
0.162 (Depositor), 0.174 (DCC)
R-Value Observed:
0.164 (Depositor)

Starting Model: in silico
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wwPDB Validation 3D Report Full Report

Validation slider image for 29MT

This is version 1.0 of the entry. See complete history.

Literature

Modular Active-Site Architecture Directs Divergent Carbocation Cascades in Sesterterpene Synthases

Troycke, P., Li, H., Yang, K., Dickschat, J.S., Groll, M.

(2026) J Am Chem Soc

DOI: https://doi.org/10.1021/jacs.6c06677

Macromolecule Content

Total Structure Weight: 237.78 kDa
Atom Count: 16,559
Modeled Residue Count: 1,942
Deposited Residue Count: 2,118
Unique protein chains: 1

Macromolecules

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Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Glutamate dehydrogenase/leucine dehydrogenase	A, B, C, D, E A, B, C, D, E, F	353	Streptomyces mobaraensis	Mutation(s): 0 Gene Names: H340_07296
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
TRS Query on TRS Download:Ideal Coordinates CCD File SDF format, chain G [auth B] MOL2 format, chain G [auth B] mmCIF format, chain G [auth B]	G [auth B]	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL C₄ H₁₂ N O₃ LENZDBCJOHFCAS-UHFFFAOYSA-O		Interactions Focus chain G [auth B] Interactions & Density Focus chain G [auth B]
GOL Query on GOL Download:Ideal Coordinates CCD File SDF format, chain J [auth F] SDF format, chain H [auth E] MOL2 format, chain J [auth F] MOL2 format, chain H [auth E] mmCIF format, chain J [auth F] mmCIF format, chain H [auth E]	H [auth E], J [auth F]	GLYCEROL C₃ H₈ O₃ PEDCQBHIVMGVHV-UHFFFAOYSA-N		Interactions Focus chain H [auth E] Focus chain J [auth F] Interactions & Density Focus chain H [auth E] Focus chain J [auth F]
EDO Query on EDO Download:Ideal Coordinates CCD File SDF format, chain I [auth E] SDF format, chain K [auth F] MOL2 format, chain I [auth E] MOL2 format, chain K [auth F] mmCIF format, chain I [auth E] mmCIF format, chain K [auth F]	I [auth E], K [auth F]	1,2-ETHANEDIOL C₂ H₆ O₂ LYCAIKOWRPUZTN-UHFFFAOYSA-N		Interactions Focus chain I [auth E] Focus chain K [auth F] Interactions & Density Focus chain I [auth E] Focus chain K [auth F]
MG Query on MG Download:Ideal Coordinates CCD File SDF format, chain L [auth F] MOL2 format, chain L [auth F] mmCIF format, chain L [auth F]	L [auth F]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions Focus chain L [auth F] Interactions & Density Focus chain L [auth F]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.70 Å
R-Value Free: 0.202 (Depositor), 0.211 (DCC)
R-Value Work: 0.162 (Depositor), 0.174 (DCC)
R-Value Observed: 0.164 (Depositor)

Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 74.82	α = 101.63
b = 81.56	β = 97.98
c = 98.72	γ = 93.9

Software Package:

Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
XSCALE	data scaling
PHASER	phasing

Structure Validation

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View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-09-02

Deposition Author(s):

Dickschat, J.S.

Funding Organization	Location	Grant Number
German Research Foundation (DFG)	Germany	GR 1861/13-1 (project number 542938137)

Revision History (Full details and data files)

Version 1.0: 2026-09-02
Type: Initial release

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.