SAXSdb — 2iiz

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

Melanin biosynthesis protein TyrA, putative

Shewanella oneidensis

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	SODIUM ION × 2 PROTOPORPHYRIN IX CONTAINING FE × 2 1,2-ETHANEDIOL × 4 ISOPROPYL ALCOHOL × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8EIU4_SHEON
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–312； UniProt 1–311

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	2iiz
Deposition date deposition_date	2006-09-28
Structure title title	Crystal structure of putative melanin biosynthesis protein TyrA with bound heme (NP_716371.1) from Shewanella Oneidensis at 2.30 A resolution
Keywords keywords	;NP_716371.1, putative melanin biosynthesis protein TyrA, Structural Genomics, PSI-2, Protein Structure Initiative, Joint Center for Structural Genomics, JCSG, Structural Genomics-Unknown function COMPLEX ;; 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.

2iiz__assembly_1__model_1

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

Download this curve (.dat)

2iiz__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2iiz__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	27.89 Å
Rg (electron density)	26.82 Å
Total Rg	27.57 Å
Atom count	4994
Residues	588
Excluded volume	88262 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2iiz__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	Melanin biosynthesis protein TyrA, putative
Molecular weight formula_weight	36469.8 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	2614

GMDIQNMPREQLGVCAEGNLHSVYLMFNANDNVESQLRPCIANVAQYIYELTDQYSDSAFNGFVAIGANYWDSLYPESRPEMLKPFPAMQEGNREAPAIEYDLFVHLRCDRYDILHLVANEISQMFEDLVELVEEERGFRFMDSRDLTGFVDGTENPKGRHRQEVALVGSEDPEFKGGSYIHVQKYAHNLSKWHRLPLKKQEDIIGRTKQDNIEYESEDKPLTSHIKRVNLKDENGKSIEILRQSMPYGSLKEQGLMFISTCRTPDHFEKMLHSMVFGDGAGNHDHLMHFTSALTGSSFFAPSLDFLMQFDN

Source Source

Source organism organism	Shewanella oneidensis
NCBI taxonomy ID ncbi_taxonomy_id	70863
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	SODIUM ION
Molecular weight formula_weight	23.0 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	PROTOPORPHYRIN IX CONTAINING FE
Molecular weight formula_weight	616.5 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 non-polymer

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

Entity 5 Entity 5 non-polymer

Description description	ISOPROPYL ALCOHOL
Molecular weight formula_weight	60.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 6 Entity 6 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	112

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6. Fold Classification (SCOP + CATH) 1 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d2iiza_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.4 — Dimeric alpha+beta barrel
Family Family family	d.58.4.14 — Dyp-type peroxidase-like

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Unit-cell length a length_a	94.837 Å
Unit-cell length b length_b	94.837 Å
Unit-cell length c length_c	116.666 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 43 21 2
Space-group number int_tables_number	96
Crystal system crystal_system	—

Resolution resolution	2.300 Å
Low-resolution limit resolution_low	19.800 Å
R factor r_factor	0.2080
R_work r_work	0.2050
R_free r_free	0.2660

Crystal structure of putative melanin biosynthesis protein TyrA with bound heme (NP_716371.1) from Shewanella Oneidensis at 2.30 A resolution

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

Melanin biosynthesis protein TyrA, putative

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

2iiz__assembly_1__model_1

2iiz__assembly_1__model_1 | I(q)

2iiz__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) 1 domains

SCOP 2.08 (1 domains)

7. Citations (1)

Crystal structure of putative melanin biosynthesis protein TyrA with bound heme (NP_716371.1) from Shewanella Oneidensis at 2.30 A resolution

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

Melanin biosynthesis protein TyrA, putative

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

2iiz__assembly_1__model_1

2iiz__assembly_1__model_1 | I(q)

2iiz__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) 1 domains

SCOP 2.08 (1 domains)

7. Citations (1)