SAXSdb — 29mu

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1. Protein Identity and Related Structures Protein Identity & Related Structures

Glutamate dehydrogenase/leucine dehydrogenase

Streptomyces mobaraensis

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	MAGNESIUM ION × 4 PYROPHOSPHATE 2- × 2 water × 2	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	MAGNESIUM ION × 2 PYROPHOSPHATE 2- × 1 PHOSPHATE ION × 1 water × 2	Consistent with protein count
3	Protein homooligomer	Homooligomer	Protein 2	MAGNESIUM ION × 2 PYROPHOSPHATE 2- × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	M3CB08_STRM1
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–359； UniProt 2–359 Author chain B； PDBConstruct 2–359； UniProt 2–359 Author chain C； PDBConstruct 2–359； UniProt 2–359 Author chain D； PDBConstruct 2–359； UniProt 2–359 Author chain E； PDBConstruct 2–359； UniProt 2–359 Author chain F； PDBConstruct 2–359； UniProt 2–359

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	29mu
Deposition date deposition_date	2026-03-23
Last revision last_revision	2026-04-08
Structure title title	Sesterterpene Synthase from Streptomyces mobaraensis (Sestermobaraene Synthase, SmTS1) in complex with pyrophosphate (PPi)
Keywords keywords	;Type I Terpene Synthases, Terpene Cyclization Mechanism, Carbocation Cascade, Enzyme Engineering, Active Site Mutagenesis, Chemodiversity, LYASE ;; LYASE
Experimental Method method	X-RAY DIFFRACTION

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

29mu__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

29mu__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

29mu__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	26.49 Å
Rg (electron density)	25.38 Å
Total Rg	26.27 Å
Atom count	5466
Residues	688
Excluded volume	96276 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`29mu__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`29mu__assembly_2__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`29mu__assembly_3__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Description description	Glutamate dehydrogenase/leucine dehydrogenase
Molecular weight formula_weight	40176.2 kDa
Source method src_method	man
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F
Atom count atom_count	16303

STLNPVPDDFLTFYCPIPGEVGPDGDKRVERTLAWVRSYDFGSGDDMANTMYAHTGVTLVTHLFPHATGDLAQALDDYNTWAFLANDLTVPDHRTVRTTDAVRLIARWTQILRIPHIFDDTSPGEAALGDALSRLRQLTTPVQFDRFAKGQARWLWGQAWEAHVREHDSRMTVNEHLTLGYAVGGPEATPPIVEVAEGIEVPERELASLPVRAAVDAAMTTAVFDNQRYSYFKESAHAQPKRSMFDTILHNNPGRTLQEAMHEGVAIRDRALACYLRLRDRILPHASPQLRQYLAGLDLVLSGHLTFAAKALRYLTPGHAVTITPTPPPHLPTEPLPYPAVAWWWDQIDPHSARQRDLG

Source Source

Source organism organism	Streptomyces mobaraensis
NCBI taxonomy ID ncbi_taxonomy_id	35621
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 2 Entity 2 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	8

Entity 3 Entity 3 non-polymer

Description description	PYROPHOSPHATE 2-
Molecular weight formula_weight	176.0 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 4 Entity 4 non-polymer

Description description	PHOSPHATE ION
Molecular weight formula_weight	95.0 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	83

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Unit-cell length a length_a	181.440 Å
Unit-cell length b length_b	228.690 Å
Unit-cell length c length_c	63.060 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	24

Space group space_group	P 21 21 2
Space-group number int_tables_number	18
Crystal system crystal_system	—

Resolution resolution	2.800 Å
Low-resolution limit resolution_low	30.000 Å
R factor r_factor	0.2279
R_work r_work	0.2266
R_free r_free	0.2519

Sesterterpene Synthase from Streptomyces mobaraensis (Sestermobaraene Synthase, SmTS1) in complex with pyrophosphate (PPi)

1. Protein Identity and Related Structures Protein Identity & Related Structures

Glutamate dehydrogenase/leucine dehydrogenase

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

29mu__assembly_1__model_1

29mu__assembly_1__model_1 | I(q)

29mu__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

7. Citations (1)

Sesterterpene Synthase from Streptomyces mobaraensis (Sestermobaraene Synthase, SmTS1) in complex with pyrophosphate (PPi)

1. Protein Identity and Related Structures Protein Identity & Related Structures

Glutamate dehydrogenase/leucine dehydrogenase

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

29mu__assembly_1__model_1

29mu__assembly_1__model_1 | I(q)

29mu__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

7. Citations (1)