1ppr

PERIDININ-CHLOROPHYLL-PROTEIN OF AMPHIDINIUM CARTERAE

Method: X-RAY DIFFRACTION

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

PERIDININ-CHLOROPHYLL PROTEIN

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 3	CHLOROPHYLL A × 6 PERIDININ × 24 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 6 water × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PCP1_AMPCA
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain M； PDBConstruct 1–312； UniProt 58–369 Author chain N； PDBConstruct 1–312； UniProt 58–369 Author chain O； PDBConstruct 1–312； UniProt 58–369

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	1ppr
Deposition date deposition_date	1996-03-06
Structure title title	PERIDININ-CHLOROPHYLL-PROTEIN OF AMPHIDINIUM CARTERAE
Keywords keywords	LIGHT HARVESTING PROTEIN, PHOTOSYNTHESIS, CAROTENOIDS, DINOFLAGELLATES, 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.

1ppr__assembly_1__model_1

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

Download this curve (.dat)

1ppr__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1ppr__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	35.47 Å
Rg (electron density)	33.76 Å
Total Rg	34.47 Å
Atom count	8736
Residues	936
Excluded volume	162640 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1ppr__assembly_1__model_1`	trimeric （3）	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	PERIDININ-CHLOROPHYLL PROTEIN
Molecular weight formula_weight	32535.1 kDa
Source method src_method	nat
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	M,N,O
Atom count atom_count	9152

DEIGDAAKKLGDASYAFAKEVDWNNGIFLQAPGKLQPLEALKAIDKMIVMGAAADPKLLKAAAEAHHKAIGSISGPNGVTSRADWDNVNAALGRVIASVPENMVMDVYDSVSKITDPKVPAYMKSLVNGADAEKAYEGFLAFKDVVKKSQVTSAAGPATVPSGDKIGVAAQQLSEASYPFLKEIDWLSDVYMKPLPGVSAQQSLKAIDKMIVMGAQADGNALKAAAEAHHKAIGSIDATGVTSAADYAAVNAALGRVIASVPKSTVMDVYNAMAGVTDTSIPLNMFSKVNPLDANAAAKAFYTFKDVVQAAQ

Entity 2 Entity 2 non-polymer

Description description	CHLOROPHYLL A
Molecular weight formula_weight	893.5 kDa
Source method src_method	syn
Copy count entity_count	6

Entity 3 Entity 3 non-polymer

Description description	PERIDININ
Molecular weight formula_weight	630.8 kDa
Source method src_method	syn
Copy count entity_count	24

Entity 4 Entity 4 non-polymer

Description description	DIGALACTOSYL DIACYL GLYCEROL (DGDG)
Molecular weight formula_weight	949.3 kDa
Source method src_method	syn
Copy count entity_count	6

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	416

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6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

Domain ID domain_id	d1pprm1
Class class	a — All alpha proteins
Fold Fold fold	a.131 — Peridinin-chlorophyll protein
Superfamily Superfamily superfamily	a.131.1 — Peridinin-chlorophyll protein
Family Family family	a.131.1.1 — Peridinin-chlorophyll protein

Domain ID domain_id	d1pprm2
Class class	a — All alpha proteins
Fold Fold fold	a.131 — Peridinin-chlorophyll protein
Superfamily Superfamily superfamily	a.131.1 — Peridinin-chlorophyll protein
Family Family family	a.131.1.1 — Peridinin-chlorophyll protein

Domain ID domain_id	d1pprn1
Class class	a — All alpha proteins
Fold Fold fold	a.131 — Peridinin-chlorophyll protein
Superfamily Superfamily superfamily	a.131.1 — Peridinin-chlorophyll protein
Family Family family	a.131.1.1 — Peridinin-chlorophyll protein

Domain ID domain_id	d1pprn2
Class class	a — All alpha proteins
Fold Fold fold	a.131 — Peridinin-chlorophyll protein
Superfamily Superfamily superfamily	a.131.1 — Peridinin-chlorophyll protein
Family Family family	a.131.1.1 — Peridinin-chlorophyll protein

Domain ID domain_id	d1ppro1
Class class	a — All alpha proteins
Fold Fold fold	a.131 — Peridinin-chlorophyll protein
Superfamily Superfamily superfamily	a.131.1 — Peridinin-chlorophyll protein
Family Family family	a.131.1.1 — Peridinin-chlorophyll protein

Domain ID domain_id	d1ppro2
Class class	a — All alpha proteins
Fold Fold fold	a.131 — Peridinin-chlorophyll protein
Superfamily Superfamily superfamily	a.131.1 — Peridinin-chlorophyll protein
Family Family family	a.131.1.1 — Peridinin-chlorophyll protein

CATH v4.4 (6 domains)

Domain ID domain_id	1pprM01
Class class	1 — Mainly Alpha
Architecture architecture	40 — Alpha solenoid
Topology topology	10 — Peridinin-chlorophyll Protein, Chain M
Homologous superfamily homologous superfamily	10 — Peridinin-chlorophyll A binding

Domain ID domain_id	1pprM02
Class class	1 — Mainly Alpha
Architecture architecture	40 — Alpha solenoid
Topology topology	10 — Peridinin-chlorophyll Protein, Chain M
Homologous superfamily homologous superfamily	10 — Peridinin-chlorophyll A binding

Domain ID domain_id	1pprN01
Class class	1 — Mainly Alpha
Architecture architecture	40 — Alpha solenoid
Topology topology	10 — Peridinin-chlorophyll Protein, Chain M
Homologous superfamily homologous superfamily	10 — Peridinin-chlorophyll A binding

Domain ID domain_id	1pprN02
Class class	1 — Mainly Alpha
Architecture architecture	40 — Alpha solenoid
Topology topology	10 — Peridinin-chlorophyll Protein, Chain M
Homologous superfamily homologous superfamily	10 — Peridinin-chlorophyll A binding

Domain ID domain_id	1pprO01
Class class	1 — Mainly Alpha
Architecture architecture	40 — Alpha solenoid
Topology topology	10 — Peridinin-chlorophyll Protein, Chain M
Homologous superfamily homologous superfamily	10 — Peridinin-chlorophyll A binding

Domain ID domain_id	1pprO02
Class class	1 — Mainly Alpha
Architecture architecture	40 — Alpha solenoid
Topology topology	10 — Peridinin-chlorophyll Protein, Chain M
Homologous superfamily homologous superfamily	10 — Peridinin-chlorophyll A binding

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Unit-cell length a length_a	198.426 Å
Unit-cell length b length_b	116.296 Å
Unit-cell length c length_c	67.025 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	94.89 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	12

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

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	40.000 Å
R factor r_factor	0.1790
R_work r_work	0.1790
R_free r_free	0.2010

PERIDININ-CHLOROPHYLL-PROTEIN OF AMPHIDINIUM CARTERAE

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

PERIDININ-CHLOROPHYLL PROTEIN

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

1ppr__assembly_1__model_1

1ppr__assembly_1__model_1 | I(q)

1ppr__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

CATH v4.4 (6 domains)

7. Citations (2)

PERIDININ-CHLOROPHYLL-PROTEIN OF AMPHIDINIUM CARTERAE

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

PERIDININ-CHLOROPHYLL PROTEIN

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

1ppr__assembly_1__model_1

1ppr__assembly_1__model_1 | I(q)

1ppr__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

CATH v4.4 (6 domains)

7. Citations (2)