SAXSdb — 1pt1

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

Aspartate 1-decarboxylase

Escherichia coli

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	SULFATE ION × 8 water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PAND_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 18–143； UniProt 1–126 Author chain B； PDBConstruct 18–143； UniProt 1–126

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	1pt1
Deposition date deposition_date	2003-06-22
Structure title title	Unprocessed Pyruvoyl Dependent Aspartate Decarboxylase with Histidine 11 Mutated to Alanine
Keywords keywords	Decarboxylase, Pantothenate pathway, Protein self-processing, 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.

1pt1__assembly_1__model_1

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

Download this curve (.dat)

1pt1__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1pt1__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	22.60 Å
Rg (electron density)	21.46 Å
Total Rg	22.23 Å
Atom count	3588
Residues	464
Excluded volume	63030 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1pt1__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	Aspartate 1-decarboxylase
Molecular weight formula_weight	15712.8 kDa
EC 编号 ec_number	4.1.1.11
Mutation mutation	H11A
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	2047

MRGSHHHHHHGLVPRGSMIRTMLQGKLARVKVTHADLHYEGSCAIDQDFLDAAGILENEAIDIWNVTNGKRFSTYAIAAERGSRIISVNGAAAHCASVGDIVIIASFVTMPDEEARTWRPNVAYFEGDNEMKRTAKAIPVQVA

Source Source

Source organism organism	Escherichia coli
NCBI taxonomy ID ncbi_taxonomy_id	562
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	237

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6. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d1pt1a1
Class class	b — All beta proteins
Fold Fold fold	b.52 — Double psi beta-barrel
Superfamily Superfamily superfamily	b.52.2 — ADC-like
Family Family family	b.52.2.1 — Pyruvoyl dependent aspartate decarboxylase, ADC

Domain ID domain_id	d1pt1a2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d1pt1b_
Class class	b — All beta proteins
Fold Fold fold	b.52 — Double psi beta-barrel
Superfamily Superfamily superfamily	b.52.2 — ADC-like
Family Family family	b.52.2.1 — Pyruvoyl dependent aspartate decarboxylase, ADC

CATH v4.4 (2 domains)

Domain ID domain_id	1pt1A00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	40 — Barwin-like endoglucanases
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1pt1B00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	40 — Barwin-like endoglucanases
Homologous superfamily homologous superfamily	20 —

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Unit-cell length a length_a	70.952 Å
Unit-cell length b length_b	70.952 Å
Unit-cell length c length_c	217.081 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	24

Space group space_group	P 61 2 2
Space-group number int_tables_number	178
Crystal system crystal_system	—

Resolution resolution	1.900 Å
Low-resolution limit resolution_low	23.440 Å
R factor r_factor	0.1500
R_work r_work	0.1485
R_free r_free	0.1696

Unprocessed Pyruvoyl Dependent Aspartate Decarboxylase with Histidine 11 Mutated to Alanine

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

Aspartate 1-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

1pt1__assembly_1__model_1

1pt1__assembly_1__model_1 | I(q)

1pt1__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (3 domains)

CATH v4.4 (2 domains)

7. Citations (4)

Unprocessed Pyruvoyl Dependent Aspartate Decarboxylase with Histidine 11 Mutated to Alanine

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

Aspartate 1-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

1pt1__assembly_1__model_1

1pt1__assembly_1__model_1 | I(q)

1pt1__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (3 domains)

CATH v4.4 (2 domains)

7. Citations (4)