SAXSdb — 1lia

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

R-PHYCOERYTHRIN

OrganismNot specified

UniProt Q01921

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	R-PHYCOERYTHRIN × 1 （Q01922） PHYCOCYANOBILIN × 4 PHYCOUROBILIN × 1 water × 2	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 2	R-PHYCOERYTHRIN × 1 （Q01922） PHYCOCYANOBILIN × 4 PHYCOUROBILIN × 1 water × 2	Consistent with protein count
3	Protein heterocomplex	Heteromer	Protein 12	R-PHYCOERYTHRIN × 6 （Q01922） PHYCOCYANOBILIN × 24 PHYCOUROBILIN × 6 water × 12	Consistent with protein count
4	Protein heterocomplex	Heteromer	Protein 6	R-PHYCOERYTHRIN × 3 （Q01922） PHYCOCYANOBILIN × 12 PHYCOUROBILIN × 3 water × 6	Consistent with protein count
5	Protein heterocomplex	Heteromer	Protein 6	R-PHYCOERYTHRIN × 3 （Q01922） PHYCOCYANOBILIN × 12 PHYCOUROBILIN × 3 water × 6	Consistent with protein count
6	Protein heterocomplex	Heteromer	Protein 4	R-PHYCOERYTHRIN × 2 （Q01922） PHYCOCYANOBILIN × 8 PHYCOUROBILIN × 2 water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PHEA_POLBO
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–164； UniProt 1–164 Author chain K； PDBConstruct 1–164； UniProt 1–164

R-PHYCOERYTHRIN

OrganismNot specified

UniProt Q01922

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	R-PHYCOERYTHRIN × 1 （Q01921） PHYCOCYANOBILIN × 4 PHYCOUROBILIN × 1 water × 2	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 2	R-PHYCOERYTHRIN × 1 （Q01921） PHYCOCYANOBILIN × 4 PHYCOUROBILIN × 1 water × 2	Consistent with protein count
3	Protein heterocomplex	Heteromer	Protein 12	R-PHYCOERYTHRIN × 6 （Q01921） PHYCOCYANOBILIN × 24 PHYCOUROBILIN × 6 water × 12	Consistent with protein count
4	Protein heterocomplex	Heteromer	Protein 6	R-PHYCOERYTHRIN × 3 （Q01921） PHYCOCYANOBILIN × 12 PHYCOUROBILIN × 3 water × 6	Consistent with protein count
5	Protein heterocomplex	Heteromer	Protein 6	R-PHYCOERYTHRIN × 3 （Q01921） PHYCOCYANOBILIN × 12 PHYCOUROBILIN × 3 water × 6	Consistent with protein count
6	Protein heterocomplex	Heteromer	Protein 4	R-PHYCOERYTHRIN × 2 （Q01921） PHYCOCYANOBILIN × 8 PHYCOUROBILIN × 2 water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PHEB_POLBO
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–177； UniProt 1–177 Author chain L； PDBConstruct 1–177； UniProt 1–177

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	1lia
Deposition date deposition_date	1996-01-29
Structure title title	CRYSTAL STRUCTURE OF R-PHYCOERYTHRIN FROM POLYSIPHONIA AT 2.8 A RESOLUTION
Keywords keywords	LIGHT HARVESTING PROTEIN; LIGHT HARVESTING PROTEIN
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.

1lia__assembly_1__model_1

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

Download this curve (.dat)

1lia__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1lia__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	26.01 Å
Rg (electron density)	25.58 Å
Total Rg	26.18 Å
Atom count	2771
Residues	341
Excluded volume	49363 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1lia__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1lia__assembly_2__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`1lia__assembly_3__model_1`	dodecameric （12）	Success	4.1.3-1-20251215 (887e7ef)	View Download
4	1	`1lia__assembly_4__model_1`	hexameric （6）	Success	4.1.3-1-20251215 (887e7ef)	View Download
5	1	`1lia__assembly_5__model_1`	hexameric （6）	Success	4.1.3-1-20251215 (887e7ef)	View Download
6	1	`1lia__assembly_6__model_1`	tetrameric （4）	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 (5)

Entity 1 Entity 1 polymer

Description description	R-PHYCOERYTHRIN
Molecular weight formula_weight	17855.0 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,K
Atom count atom_count	5676

MKSVITTTISAADAAGRYPSTSDLQSVQGNIQRAAARLEAAEKLGSNHEAVVKEAGDACFSKYGYNKNPGEAGENQEKINKCYRDIDHYMRLINYTLVVGGTGPLDEWGIAGAREVYRTLNLPSAAYIAAFVFTRDRLCIPRDMSAQAGVEFCTALDYLINSLS

Entity 2 Entity 2 polymer

Description description	R-PHYCOERYTHRIN
Molecular weight formula_weight	18737.4 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B,L

MLDAFSRVVVNSDSKAAYVSGSDLQALKTFINDGNKRLDAVNYIVSNSSCIVSDAISGMICENPGLITPGGNCYTNRRMAACLRDGEIILRYVSYALLAGDASVLEDRCLNGLKETYIALGVPTNSTVRAVSIMKAAAVCFISNTASQRKVEVIEGDCSALASEVASYCDRVVAAVS

Entity 3 Entity 3 non-polymer

Description description	PHYCOCYANOBILIN
Molecular weight formula_weight	588.7 kDa
Source method src_method	syn
Copy count entity_count	8

Entity 4 Entity 4 non-polymer

Description description	PHYCOUROBILIN
Molecular weight formula_weight	590.7 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	134

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1liaa_
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	d1liab_
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	d1liak_
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	d1lial_
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 (4 domains)

Domain ID domain_id	1liaA00
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	1liaB00
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	1liaK00
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	1liaL00
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	189.800 Å
Unit-cell length b length_b	189.800 Å
Unit-cell length c length_c	60.100 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	18

Space group space_group	H 3
Space-group number int_tables_number	146
Crystal system crystal_system	—

Resolution resolution	2.800 Å
Low-resolution limit resolution_low	10.000 Å
R factor r_factor	0.1800
R_work r_work	0.1800
R_free r_free	0.1820

CRYSTAL STRUCTURE OF R-PHYCOERYTHRIN FROM POLYSIPHONIA AT 2.8 A RESOLUTION

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

R-PHYCOERYTHRIN

State in the Current Structure

Other States of the Same Protein in the Database

R-PHYCOERYTHRIN

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

1lia__assembly_1__model_1

1lia__assembly_1__model_1 | I(q)

1lia__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (2)

CRYSTAL STRUCTURE OF R-PHYCOERYTHRIN FROM POLYSIPHONIA AT 2.8 A RESOLUTION

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

R-PHYCOERYTHRIN

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

R-PHYCOERYTHRIN

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

1lia__assembly_1__model_1

1lia__assembly_1__model_1 | I(q)

1lia__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (2)