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5xnn

Structure of M-LHCII and CP24 complexes in the stacked C2S2M2-type PSII-LHCII supercomplex from Pisum sativum

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Chlorophyll a-b binding protein 8, chloroplastic

OrganismNot specified

UniProt P27490

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 4 Chlorophyll a-b binding protein, chloroplastic × 1 （Q04918） Light harvesting chlorophyll a/b-binding protein Lhcb6, CP24 × 1 CHLOROPHYLL B × 23 CHLOROPHYLL A × 30 (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 ;(3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL ; × 4 ;(1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL ; × 3 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 4 BETA-CAROTENE × 1 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
5xnl 5xnm 5xnn 5xno 6yp7 9ifm

6 assemblies

View Construct and Data Evidence
UniProt name CB28_PEA
Isoform —
PDB entities 1
Chains and sequence ranges Author chain 1； PDBConstruct 1–232； UniProt 37–268 Author chain 2； PDBConstruct 1–232； UniProt 37–268

Chlorophyll a-b binding protein, chloroplastic

OrganismNot specified

UniProt Q04918

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 4 Chlorophyll a-b binding protein 8, chloroplastic × 2 （P27490） Light harvesting chlorophyll a/b-binding protein Lhcb6, CP24 × 1 CHLOROPHYLL B × 23 CHLOROPHYLL A × 30 (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 ;(3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL ; × 4 ;(1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL ; × 3 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 4 BETA-CAROTENE × 1 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
5xnl 5xnm 5xnn 5xno

4 assemblies

View Construct and Data Evidence
UniProt name Q04918_PEA
Isoform —
PDB entities 2
Chains and sequence ranges Author chain 3； PDBConstruct 1–243； UniProt 23–265

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_id5xnn
Deposition date deposition_date2017-05-23
Structure title titleStructure of M-LHCII and CP24 complexes in the stacked C2S2M2-type PSII-LHCII supercomplex from Pisum sativum
Keywords keywordsPhotosystem II, M-LHCII and CP24 complexes, PSII-LHCII, C2S2M2 supercomplex, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method methodELECTRON MICROSCOPY
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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.

5xnn__assembly_1__model_1

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

Download this curve (.dat)

5xnn__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

5xnn__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）36.13 Å
Rg (electron density)34.84 Å
Total Rg35.39 Å
Atom count10020
Residues854
Excluded volume185080 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 5xnn__assembly_1__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 (10)

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6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

Domain ID domain_id5xnn301
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology3460 — Chlorophyll a-b binding protein
Homologous superfamily homologous superfamily10 — Chlorophyll a/b binding protein domain
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7. Citations (1)