SAXSdb — 1jf4

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

monomer hemoglobin component IV

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	PROTOPORPHYRIN IX CONTAINING FE × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	GLB4_GLYDI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–147； UniProt 1–147

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	1jf4
Deposition date deposition_date	2001-06-20
Structure title title	Crystal Structure Of Component IV Glycera Dibranchiata Monomeric Hemoglobin
Keywords keywords	Glycera, monomer hemoglobin, OXYGEN STORAGE-TRANSPORT COMPLEX; OXYGEN STORAGE/TRANSPORT
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.

1jf4__assembly_1__model_1

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

Download this curve (.dat)

1jf4__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1jf4__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	15.76 Å
Rg (electron density)	14.36 Å
Total Rg	15.50 Å
Atom count	1099
Residues	147
Excluded volume	19496 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1jf4__assembly_1__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 (3)

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d1jf4a_
Class class	a — All alpha proteins
Fold Fold fold	a.1 — Globin-like
Superfamily Superfamily superfamily	a.1.1 — Globin-like
Family Family family	a.1.1.2 — Globins

CATH v4.4 (1 domains)

Domain ID domain_id	1jf4A00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	490 — Globin-like
Homologous superfamily homologous superfamily	10 — Globins

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Unit-cell length a length_a	60.940 Å
Unit-cell length b length_b	33.000 Å
Unit-cell length c length_c	40.760 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	109.61 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	2

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	1.400 Å
Low-resolution limit resolution_low	10.000 Å
R factor r_factor	—
R_work r_work	0.1890
R_free r_free	0.2130

Description description	monomer hemoglobin component IV
Molecular weight formula_weight	15049.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	1174

Crystal Structure Of Component IV Glycera Dibranchiata Monomeric Hemoglobin

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

monomer hemoglobin component IV

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

1jf4__assembly_1__model_1

1jf4__assembly_1__model_1 | I(q)

1jf4__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

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)

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

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	75

Crystal Structure Of Component IV Glycera Dibranchiata Monomeric Hemoglobin

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

monomer hemoglobin component IV

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

1jf4__assembly_1__model_1

1jf4__assembly_1__model_1 | I(q)

1jf4__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

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)