SAXSdb — 1xiz

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

putative phosphotransferase system mannitol/fructose-specific IIA domain

Salmonella typhimurium

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 monomer	Monomer	Protein 1	water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8ZL18_SALTY
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 3–159； UniProt 1–157 Author chain B； PDBConstruct 3–159； UniProt 1–157

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	1xiz
Deposition date deposition_date	2004-09-22
Structure title title	Structural Genomics, The crystal structure of domain IIA of putative phosphotransferase system specific for mannitol/fructose from Salmonella typhimurium
Keywords keywords	Structural genomics, IIA domain, protein structure initiative, Midwest Center for Structural Genomics, MCSG, PSI, 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.

1xiz__assembly_1__model_1

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

Download this curve (.dat)

1xiz__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1xiz__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	16.12 Å
Rg (electron density)	14.45 Å
Total Rg	15.58 Å
Atom count	1234
Residues	155
Excluded volume	21910 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1xiz__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1xiz__assembly_2__model_1`	monomeric （1）	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) 6 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1xiza1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.112 — Phoshotransferase/anion transport protein
Superfamily Superfamily superfamily	d.112.1 — Phoshotransferase/anion transport protein
Family Family family	d.112.1.1 — IIA domain of mannitol-specific and ntr phosphotransferase EII

Domain ID domain_id	d1xiza2
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	d1xizb1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.112 — Phoshotransferase/anion transport protein
Superfamily Superfamily superfamily	d.112.1 — Phoshotransferase/anion transport protein
Family Family family	d.112.1.1 — IIA domain of mannitol-specific and ntr phosphotransferase EII

Domain ID domain_id	d1xizb2
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

CATH v4.4 (2 domains)

Domain ID domain_id	1xizA00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	930 — Mannitol-specific EII; Chain A
Homologous superfamily homologous superfamily	10 — Mannitol-specific EII; Chain A

Domain ID domain_id	1xizB00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	930 — Mannitol-specific EII; Chain A
Homologous superfamily homologous superfamily	10 — Mannitol-specific EII; Chain A

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Unit-cell length a length_a	47.875 Å
Unit-cell length b length_b	48.138 Å
Unit-cell length c length_c	123.883 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 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	33.950 Å
R factor r_factor	0.2030
R_work r_work	0.2030
R_free r_free	0.2760

Description description	putative phosphotransferase system mannitol/fructose-specific IIA domain
Molecular weight formula_weight	18024.4 kDa
Source method src_method	man
Copy count entity_count	2

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	2639

Structural Genomics, The crystal structure of domain IIA of putative phosphotransferase system specific for mannitol/fructose from Salmonella typhimurium

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

putative phosphotransferase system mannitol/fructose-specific IIA domain

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

1xiz__assembly_1__model_1

1xiz__assembly_1__model_1 | I(q)

1xiz__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) 6 domains

SCOP 2.08 (4 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Source organism organism	Salmonella typhimurium
NCBI taxonomy ID ncbi_taxonomy_id	602
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	164

Structural Genomics, The crystal structure of domain IIA of putative phosphotransferase system specific for mannitol/fructose from Salmonella typhimurium

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

putative phosphotransferase system mannitol/fructose-specific IIA domain

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

1xiz__assembly_1__model_1

1xiz__assembly_1__model_1 | I(q)

1xiz__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) 6 domains

SCOP 2.08 (4 domains)

CATH v4.4 (2 domains)

7. Citations (1)