SAXSdb — 3e2d

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

Alkaline phosphatase

Vibrio sp. G15-21

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	ZINC ION × 4 MAGNESIUM ION × 2 SULFATE ION × 11 1,2-ETHANEDIOL × 3 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q93P54_9VIBR
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–502； UniProt 20–521 Author chain B； PDBConstruct 1–502； UniProt 20–521

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	3e2d
Deposition date deposition_date	2008-08-05
Structure title title	The 1.4 A crystal structure of the large and cold-active Vibrio sp. alkaline phosphatase
Keywords keywords	cold-adaptation, metalloenzyme, dimer, psychrophilic bacteria, HYDROLASE; HYDROLASE
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.

3e2d__assembly_1__model_1

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

Download this curve (.dat)

3e2d__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3e2d__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	29.97 Å
Rg (electron density)	29.11 Å
Total Rg	29.88 Å
Atom count	7873
Residues	1004
Excluded volume	138760 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3e2d__assembly_1__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 (6)

Entity 1 Entity 1 polymer

Description description	Alkaline phosphatase
Molecular weight formula_weight	55425.8 kDa
EC 编号 ec_number	3.1.3.1
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	8989

AEIKNVILMIGDGMGPQQVGLLETYANQAPNSIYKGNKTAIYQLAQEGVIGSSLTHPEDAIVVDSACSATMLATGIYSSSEVIGIDSQGNHVETVLEKAKKAGKATGLVSDTRLTHATPASFAAHQPHRSLENQIASDMLATGADVMLSGGLRHWIPKSTNDKGETYKQLEKLTQGDVYLKSKRKDDRNLLTEAEKDGYQLAFNRNMLDDAKGDKLLGLFAYSGMDDGIAYSNKKKSGERTQPSLKEMTQKALNILSKDEDGFFLMVEGGQIDWAGHSNDAGTMLHELLKFDEAIQTVYEWAKDREDTIVIVTADHETGSFGFSYSSNDLPKPQKRSGEAFADRDYAPNFNFGAFDILDGLYNQKQSYYGMISEFQKLDKSLQTPEKLAEIVNKNSEFPITAEQAKNVLASKPNPYRLAQHKYLSAEEVPAINDFDAFFPYNDRGNLLAREQATGQNIVWGTGTHTHTPVNVFAWGPAEKILPVSKIMHHSELGEYIKQQVN

Source Source

Source organism organism	Vibrio sp. G15-21
NCBI taxonomy ID ncbi_taxonomy_id	169049
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 3 Entity 3 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	11

Entity 5 Entity 5 non-polymer

Description description	1,2-ETHANEDIOL
Molecular weight formula_weight	62.1 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 6 Entity 6 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	847

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6. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

Domain ID domain_id	3e2dA01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	720 — Alkaline Phosphatase, subunit A
Homologous superfamily homologous superfamily	10 — Alkaline Phosphatase, subunit A

Domain ID domain_id	3e2dA02
Class class	6 — Special
Architecture architecture	20 — Other non-globular
Topology topology	370 — Rhinovirus 14, subunit 4
Homologous superfamily homologous superfamily	140 —

Domain ID domain_id	3e2dA03
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1200 — Non-ribosomal Peptide Synthetase Peptidyl Carrier Protein; Chain A
Homologous superfamily homologous superfamily	140 — Alkaline phosphatase, crown domain

Domain ID domain_id	3e2dA04
Class class	4 — Few Secondary Structures
Architecture architecture	10 — Irregular
Topology topology	80 — Rhinovirus 14, subunit 4
Homologous superfamily homologous superfamily	410 — Alkaline phosphatase, crown domain, central beta-sheet

Domain ID domain_id	3e2dB01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	720 — Alkaline Phosphatase, subunit A
Homologous superfamily homologous superfamily	10 — Alkaline Phosphatase, subunit A

Domain ID domain_id	3e2dB02
Class class	6 — Special
Architecture architecture	20 — Other non-globular
Topology topology	370 — Rhinovirus 14, subunit 4
Homologous superfamily homologous superfamily	140 —

Domain ID domain_id	3e2dB03
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1200 — Non-ribosomal Peptide Synthetase Peptidyl Carrier Protein; Chain A
Homologous superfamily homologous superfamily	140 — Alkaline phosphatase, crown domain

Domain ID domain_id	3e2dB04
Class class	4 — Few Secondary Structures
Architecture architecture	10 — Irregular
Topology topology	80 — Rhinovirus 14, subunit 4
Homologous superfamily homologous superfamily	410 — Alkaline phosphatase, crown domain, central beta-sheet

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Unit-cell length a length_a	118.240 Å
Unit-cell length b length_b	165.980 Å
Unit-cell length c length_c	57.480 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	8

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

Resolution resolution	1.400 Å
Low-resolution limit resolution_low	19.700 Å
R factor r_factor	0.1560
R_work r_work	0.1554
R_free r_free	0.1665

The 1.4 A crystal structure of the large and cold-active Vibrio sp. alkaline phosphatase

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

Alkaline phosphatase

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

3e2d__assembly_1__model_1

3e2d__assembly_1__model_1 | I(q)

3e2d__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 (6)

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 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

7. Citations (1)

The 1.4 A crystal structure of the large and cold-active Vibrio sp. alkaline phosphatase

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

Alkaline phosphatase

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

3e2d__assembly_1__model_1

3e2d__assembly_1__model_1 | I(q)

3e2d__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 (6)

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 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

7. Citations (1)