1c51

PHOTOSYNTHETIC REACTION CENTER AND CORE ANTENNA SYSTEM (TRIMERIC), ALPHA CARBON ONLY

Method: X-RAY DIFFRACTION D_max: 117.5 Å Quality: EXCELLENT

▼

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

No usable UniProt protein identity is available for this entry.

七张关系表仍保留该条目的 assembly 与组成信息，但缺少统一蛋白身份时，不能可靠建立跨 PDB 的同蛋白Chain接。

Assembly Composition of the Current Entry

Assembly	Oligomeric State	实体与Construct证据	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer 蛋白 24 / DNA 0 / RNA 0 / 其他Polymer 0 PDB declaration: 24-meric	Entity 1：PROTEIN (PHOTOSYSTEM I: SUBUNIT PSAA) × 3 Entity 2：PROTEIN (PHOTOSYSTEM I: SUBUNIT PSAB ) × 3 Entity 3：PROTEIN (PHOTOSYSTEM I: SUBUNIT PSAC) × 3 Entity 4：PROTEIN (PHOTOSYSTEM I: SUBUNIT PSAD) × 3 Entity 5：PROTEIN (PHOTOSYSTEM I: SUBUNIT PSAE) × 3 Entity 6：PROTEIN (PHOTOSYSTEM I: SUBUNIT PSAF) × 3 Entity 7：PROTEIN (PHOTOSYSTEM I: SUBUNIT PSAK) × 3 Entity 8：PROTEIN (PHOTOSYSTEM I: SUBUNIT PSAL) × 3 缺少 UniProt 身份时不显示参考序列区间	Not recorded	CLA CHLOROPHYLL A × 216 PQN PHYLLOQUINONE × 6 SF4 IRON/SULFUR CLUSTER × 9	X-RAY DIFFRACTION X-ray crystallization conditions：pH 6.4；pH 6.4	Resolution 4.00 Å

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.

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

Download Download SAXS (.dat) P(r) (.pr.out) CIF

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	1c51
Deposition date deposition_date	1999-10-21
Structure title title	PHOTOSYNTHETIC REACTION CENTER AND CORE ANTENNA SYSTEM (TRIMERIC), ALPHA CARBON ONLY
Keywords keywords	;PHOTOSYNTHESIS, PHOTOSYNTHETIC REACTION CENTER, OXYGENIC PHOTOSYNTHESIS, CORE- ANTENNA LIGHT-HARVESTING SYSTEM, THERMOPHILIC CYANOBACTERIUM, HELIX-BUNDLE MEMBRANE PROTEIN, PHOTOSYNTHESIS-ELECTRON TRANSPORT COMPLEX ;; PHOTOSYNTHESIS/ELECTRON TRANSPORT
Experimental Method method	X-RAY DIFFRACTION

▼

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier	40.52 Å
Radius of gyration Rg (electron density) rg_electron	40.09 Å
Forward intensity I(0) i0	765476000.00
Molecular weight molecular_weight	227390.0 kDa
Excluded volume excluded_volume	434350 Å³
Envelope volume envelope_volume	317590 Å³
Hydration-shell volume shell_volume	67478 Å³
Envelope diameter envelope_diameter	132.8 Å
Shell Rg shell_rg	45.25 Å
Envelope Rg envelope_rg	37.72 Å
Shape Rg shape_rg	38.59 Å
Total Rg total_rg	40.84 Å
Total atoms total_atoms	1828
Residues n_residues	—
Spherical-harmonic order n_harmonics	20
q range q_range	— – 0.5000 Å⁻¹
Data points n_points	101
Shell type shell_type	directional
Solvent electron density solvent_density	0.3340 e/Å³
Shell contrast contrast_shell	0.0300 e/Å³
CRYSOL version crysol_version	4.1.3

▼

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax	117.5 Å
Rg (real space) rg_real	40.31 Å
Rg uncertainty (real space) rg_real_error	0.42 Å
I(0) (real space) i0_real	7.6530e+08
I(0) uncertainty (real space) i0_real_error	1.0090e+07
Rg (reciprocal space) rg_reciprocal	40.51 Å
I(0) (reciprocal space) i0_reciprocal	765600000.0000
Solution quality estimate total_estimate	0.9035
Solution quality rating solution_quality	EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks	2
Primary peak position r_peak_primary	48.2 Å
Skewness Skewness skewness	0.173
Kurtosis Kurtosis kurtosis	-0.435
Angular range angular_range	— – 0.1950 Å⁻¹
Current regularization parameter α current_alpha	0.0000
Highest regularization parameter α highest_alpha	157600000.0000
Real-space data points n_real_points	40
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.001; Oscil: 0.950; Stabil: 0.995; Sysdev: 1.000; Positv: 1.000; Valcen: 0.968; Smooth: 0.937

▶

5. Crystallography and Experiment 5. Crystallography & Experiment

▶

6. Entities and Polymers Entities & Polymers (11)

Entity 1 Entity 1 polymer

Description description	PROTEIN (PHOTOSYSTEM I: SUBUNIT PSAA)
Molecular weight formula_weight	50825.8 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	3672

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Entity 2 Entity 2 polymer

Description description	PROTEIN (PHOTOSYSTEM I: SUBUNIT PSAB )
Molecular weight formula_weight	52698.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

Entity 3 Entity 3 polymer

Description description	PROTEIN (PHOTOSYSTEM I: SUBUNIT PSAC)
Molecular weight formula_weight	6571.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Entity 4 Entity 4 polymer

Description description	PROTEIN (PHOTOSYSTEM I: SUBUNIT PSAD)
Molecular weight formula_weight	10656.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	D

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Entity 5 Entity 5 polymer

Description description	PROTEIN (PHOTOSYSTEM I: SUBUNIT PSAE)
Molecular weight formula_weight	6400.9 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Entity 6 Entity 6 polymer

Description description	PROTEIN (PHOTOSYSTEM I: SUBUNIT PSAF)
Molecular weight formula_weight	13039.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	F

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Entity 7 Entity 7 polymer

Description description	PROTEIN (PHOTOSYSTEM I: SUBUNIT PSAK)
Molecular weight formula_weight	6656.2 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	K

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Entity 8 Entity 8 polymer

Description description	PROTEIN (PHOTOSYSTEM I: SUBUNIT PSAL)
Molecular weight formula_weight	10230.6 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	L

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Entity 9 Entity 9 non-polymer

Description description	CHLOROPHYLL A
Molecular weight formula_weight	893.5 kDa
Source method src_method	syn
Copy count entity_count	72

Entity 10 Entity 10 non-polymer

Description description	PHYLLOQUINONE
Molecular weight formula_weight	450.7 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 11 Entity 11 non-polymer

Description description	IRON/SULFUR CLUSTER
Molecular weight formula_weight	351.6 kDa
Source method src_method	syn
Copy count entity_count	3

▼

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (8 domains)

Domain ID domain_id	d1c51a_
Class class	i — Low resolution protein structures
Fold Fold fold	i.5 — Photosystems
Superfamily Superfamily superfamily	i.5.1 — Photosystems
Family Family family	i.5.1.1 — Photosystems

Domain ID domain_id	d1c51b_
Class class	i — Low resolution protein structures
Fold Fold fold	i.5 — Photosystems
Superfamily Superfamily superfamily	i.5.1 — Photosystems
Family Family family	i.5.1.1 — Photosystems

Domain ID domain_id	d1c51c_
Class class	i — Low resolution protein structures
Fold Fold fold	i.5 — Photosystems
Superfamily Superfamily superfamily	i.5.1 — Photosystems
Family Family family	i.5.1.1 — Photosystems

Domain ID domain_id	d1c51d_
Class class	i — Low resolution protein structures
Fold Fold fold	i.5 — Photosystems
Superfamily Superfamily superfamily	i.5.1 — Photosystems
Family Family family	i.5.1.1 — Photosystems

Domain ID domain_id	d1c51e_
Class class	i — Low resolution protein structures
Fold Fold fold	i.5 — Photosystems
Superfamily Superfamily superfamily	i.5.1 — Photosystems
Family Family family	i.5.1.1 — Photosystems

Domain ID domain_id	d1c51f_
Class class	i — Low resolution protein structures
Fold Fold fold	i.5 — Photosystems
Superfamily Superfamily superfamily	i.5.1 — Photosystems
Family Family family	i.5.1.1 — Photosystems

Domain ID domain_id	d1c51k_
Class class	i — Low resolution protein structures
Fold Fold fold	i.5 — Photosystems
Superfamily Superfamily superfamily	i.5.1 — Photosystems
Family Family family	i.5.1.1 — Photosystems

Domain ID domain_id	d1c51l_
Class class	i — Low resolution protein structures
Fold Fold fold	i.5 — Photosystems
Superfamily Superfamily superfamily	i.5.1 — Photosystems
Family Family family	i.5.1.1 — Photosystems

▶

8. Citations (6)

▶

Unit-cell length a length_a	286.000 Å
Unit-cell length b length_b	286.000 Å
Unit-cell length c length_c	167.000 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	6

Space group space_group	P 63
Space-group number int_tables_number	173
Crystal system crystal_system	—

Resolution resolution	4.000 Å
Low-resolution limit resolution_low	60.000 Å
R factor r_factor	—
R_work r_work	—
R_free r_free	—

fit	/app/data/saxs_computation/c5/1c51/1c51.fit
pddf	/app/data/pr_computation/c5/1c51/1c51.pr.out
profile	/app/data/saxs_computation/c5/1c51/1c51.dat

PHOTOSYNTHETIC REACTION CENTER AND CORE ANTENNA SYSTEM (TRIMERIC), ALPHA CARBON ONLY

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

Assembly Composition of the Current Entry

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

2. Structure Basics 2. Structure Basics

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

5. Crystallography and Experiment 5. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

6. Entities and Polymers Entities & Polymers (11)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 polymer

Polymer Polymer

Entity 5 Entity 5 polymer

Polymer Polymer

Entity 6 Entity 6 polymer

Polymer Polymer

Entity 7 Entity 7 polymer

Polymer Polymer

Entity 8 Entity 8 polymer

Polymer Polymer

Entity 9 Entity 9 non-polymer

Entity 10 Entity 10 non-polymer

Entity 11 Entity 11 non-polymer

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (8 domains)

8. Citations (6)

9. Files and Curves (10)

Files (7)

Curves (3)