SAXSdb — 2j96

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

PHYCOERYTHROCYANIN ALPHA CHAIN

OrganismNot specified

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PHEA_MASLA
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–162； UniProt 1–162 Author chain B； PDBConstruct 1–162； UniProt 1–162

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	2j96
Deposition date deposition_date	2006-11-02
Structure title title	The E-configuration of alfa-Phycoerythrocyanin
Keywords keywords	;ELECTRON TRANSPORT, Z- TO E-ISOMERIZATION, TRANSPORT, CHROMOPHORE, BILE PIGMENT, PHYCOBILISOME, PHOTOSYNTHESIS, LIGHT HARVESTING, PHYCOBILIPROTEINS ;; PHOTOSYNTHESIS
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.

2j96__assembly_1__model_1

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

Download this curve (.dat)

2j96__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2j96__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	26.06 Å
Rg (electron density)	25.93 Å
Total Rg	26.36 Å
Atom count	2564
Residues	324
Excluded volume	45328 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2j96__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 (3)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d2j96a_
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.1.1.3 — Phycocyanin-like phycobilisome proteins

Domain ID domain_id	d2j96b_
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.1.1.3 — Phycocyanin-like phycobilisome proteins

CATH v4.4 (2 domains)

Domain ID domain_id	2j96A00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	490 — Globin-like
Homologous superfamily homologous superfamily	20 — Phycocyanins

Domain ID domain_id	2j96B00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	490 — Globin-like
Homologous superfamily homologous superfamily	20 — Phycocyanins

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Unit-cell length a length_a	129.808 Å
Unit-cell length b length_b	102.598 Å
Unit-cell length c length_c	32.146 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	94.48 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

Space group space_group	C 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	—

Resolution resolution	2.250 Å
Low-resolution limit resolution_low	50.000 Å
R factor r_factor	0.2350
R_work r_work	0.2350
R_free r_free	0.3086

Description description	PHYCOERYTHROCYANIN ALPHA CHAIN
Molecular weight formula_weight	17581.7 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	2890

The E-configuration of alfa-Phycoerythrocyanin

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

PHYCOERYTHROCYANIN ALPHA CHAIN

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

2j96__assembly_1__model_1

2j96__assembly_1__model_1 | I(q)

2j96__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) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Description description	PHYCOVIOLOBILIN
Molecular weight formula_weight	588.7 kDa
Source method src_method	syn
Copy count entity_count	2

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	326

The E-configuration of alfa-Phycoerythrocyanin

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

PHYCOERYTHROCYANIN ALPHA CHAIN

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

2j96__assembly_1__model_1

2j96__assembly_1__model_1 | I(q)

2j96__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) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)