SAXSdb — 1ixl

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

hypothetical protein PH1136

Pyrococcus horikoshii

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	water × 1	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	O58863_PYRHO
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–131； UniProt 1–131

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	1ixl
Deposition date deposition_date	2002-06-27
Structure title title	Crystal structure of uncharacterized protein PH1136 from Pyrococcus horikoshii
Keywords keywords	alpha+beta, hot-dog-fold, STRUCTURAL GENOMICS, UNKNOWN FUNCTION; STRUCTURAL GENOMICS, UNKNOWN FUNCTION
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.

1ixl__assembly_1__model_1

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

Download this curve (.dat)

1ixl__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1ixl__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	15.98 Å
Rg (electron density)	14.89 Å
Total Rg	16.13 Å
Atom count	1027
Residues	127
Excluded volume	18851 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1ixl__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1ixl__assembly_2__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 (2)

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d1ixla_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.38 — Thioesterase/thiol ester dehydrase-isomerase
Superfamily Superfamily superfamily	d.38.1 — Thioesterase/thiol ester dehydrase-isomerase
Family Family family	d.38.1.5 — PaaI/YdiI-like

CATH v4.4 (1 domains)

Domain ID domain_id	1ixlA00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	129 — Thiol Ester Dehydrase; Chain A
Homologous superfamily homologous superfamily	10 — Hotdog Thioesterase

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Unit-cell length a length_a	57.500 Å
Unit-cell length b length_b	57.500 Å
Unit-cell length c length_c	79.500 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	6

Space group space_group	P 31 2 1
Space-group number int_tables_number	152
Crystal system crystal_system	—

Resolution resolution	1.940 Å
Low-resolution limit resolution_low	10.000 Å
R factor r_factor	—
R_work r_work	0.1990
R_free r_free	0.2390

Description description	hypothetical protein PH1136
Molecular weight formula_weight	14893.1 kDa
Source method src_method	man
Copy count entity_count	1

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	1116

Crystal structure of uncharacterized protein PH1136 from Pyrococcus horikoshii

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

hypothetical protein PH1136

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

1ixl__assembly_1__model_1

1ixl__assembly_1__model_1 | I(q)

1ixl__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)

Source organism organism	Pyrococcus horikoshii
NCBI taxonomy ID ncbi_taxonomy_id	53953
Host organism host_organism	Escherichia coli BL21(DE3)

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	89

Crystal structure of uncharacterized protein PH1136 from Pyrococcus horikoshii

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

hypothetical protein PH1136

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

1ixl__assembly_1__model_1

1ixl__assembly_1__model_1 | I(q)

1ixl__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)