SAXSdb — 9s7j

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

pyruvate decarboxylase

Neoasaia chiangmaiensis

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	MAGNESIUM ION × 4 THIAMINE DIPHOSPHATE × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	A0A1U9KM35_9PROT
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 21–578； UniProt 1–558 Author chain B； PDBConstruct 21–578； UniProt 1–558 Author chain C； PDBConstruct 21–578； UniProt 1–558 Author chain D； PDBConstruct 21–578； UniProt 1–558

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	9s7j
Deposition date deposition_date	2025-08-04
Structure title title	Cryo-EM (200kV) structure of pyruvate decarboxylase from Neoasaia chiangmaiensis
Keywords keywords	metabolic enzyme pyruvate decarboxylase CO2 fixation, CYTOSOLIC PROTEIN; CYTOSOLIC PROTEIN
Experimental Method method	ELECTRON MICROSCOPY

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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.

9s7j__assembly_1__model_1

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

Download this curve (.dat)

9s7j__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9s7j__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	37.57 Å
Rg (electron density)	36.61 Å
Total Rg	37.17 Å
Atom count	16816
Residues	2212
Excluded volume	297210 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9s7j__assembly_1__model_1`	tetrameric （4）	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 (3)

Entity 1 Entity 1 polymer

Description description	pyruvate decarboxylase
Molecular weight formula_weight	62184.2 kDa
EC 编号 ec_number	4.1.1.1
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	16816

MGSSHHHHHHSSGLVPRGSHMAYTVGMYLAERLAQIGLKHHFAVAGDYNLVLLDQLLLNKDMEQIYCCNELNCGFSAEGYARAQGAAAAVVTFSVGAISAMNAIGGAYAENLPVILISGAPNSNDHGSGHVLHHTIGTTDYGYQLEMVRHLTCAAESIVSAENAPAKIDHVIRTALRERKPAYLEIACNVAGAECVRPGPVSSLLPETPSDLTSLQAALDASLAWLAPRDRVVLLVGSKLRAADAQAVSVELADRMGCAVTIMAAAKGFFPEDHPCYRGLYWGEVSSPGVQELVESADGIICLAPVFNDYSTVGWNAWPKGDNVLLAEPDRVTVAGRSYEGIALRDFIKGMTARALSKPVTAQGTTAPRLELAQAKGDAPLTNDEMTRQIQALLNRDTTLTAETGDSWFNATRMNLPGGARVELEMQWGHIGWSVPSAFGNAMGSQDRRHVLMVGDGSFQLTAQEVAQMIRYELPVIIFLVNNRGYVIEIAIHDGPYNYIKNWDYAGLIAAFNAGEGHGLGLHAKTGDELQDAIEKAVANKRGPTLIECSIARDDCTSELVNWGKRVAATNSRRPAAD

Source Source

Source organism organism	Neoasaia chiangmaiensis
NCBI taxonomy ID ncbi_taxonomy_id	320497
Host organism host_organism	Escherichia coli

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	4

Entity 3 Entity 3 non-polymer

Description description	THIAMINE DIPHOSPHATE
Molecular weight formula_weight	425.3 kDa
Source method src_method	syn
Copy count entity_count	4

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 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	—

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	triclinic

Resolution resolution	2.85 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	314682

Cryo-EM (200kV) structure of pyruvate decarboxylase from Neoasaia chiangmaiensis

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

pyruvate decarboxylase

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

9s7j__assembly_1__model_1

9s7j__assembly_1__model_1 | I(q)

9s7j__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

7. Citations (1)

Cryo-EM (200kV) structure of pyruvate decarboxylase from Neoasaia chiangmaiensis

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

pyruvate decarboxylase

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

9s7j__assembly_1__model_1

9s7j__assembly_1__model_1 | I(q)

9s7j__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

7. Citations (1)