MolNFT v1 · #18211 · protein
Structure of phycocyanin from cyanidium caldarium at 1.65A resolution
1PHN: “Structure of phycocyanin from cyanidium caldarium at 1.65A resolution”. X-ray diffraction, 2 ligands (CYC, PEB), 3 pockets (best druggability 0.63). MolNFT v1 #18211 on GenesisL1: 3D structure, binding sites and pockets in GL1X.
- PDB
- 1PHN
- Type
- protein
- Length
- 334 residues
- Chains
- 2
- Method
- x-ray diffraction
- Collection
- MolNFT v1 / PDB
- Contract
- 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
- Owner
- 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
- Molecule
- Phycocyanin
- UniProt
- P00306, P00311
- Ligands
- CYC, PEB
- Pockets
- 3 · best druggability 0.63
Structure
x-ray diffraction · 2 distinct chains · 77% helix, 0% strand (DSSP).
| Chain | Molecule | Type | Residues | Secondary structure | UniProt |
|---|---|---|---|---|---|
| A | Phycocyanin | protein | 162 | 79% helix, 0% strand | P00306 |
| B | Phycocyanin | protein | 172 | 76% helix, 0% strand | P00311 |
Ligands and binding sites
Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.
Pockets
3 pockets found on a 1 Å grid, 2 with a druggability of 0.5 or more.
| Volume (ų) | Druggability | Buriedness | Lining residues | Inside | |
|---|---|---|---|---|---|
| 1 | 207 | 0.63 | 0.83 | 31 | PEB |
| 2 | 206 | 0.59 | 0.80 | 32 | CYC |
| 3 | 53 | 0.33 | 0.78 | 15 | empty |
Interfaces
1 interface between chains.
- A–B · 1615 Ų buried · 15 hydrogen bonds · protein-protein
Modifications
Observed in the structure: 3 cofactor, 1 modified (phycocyanobilin attachment, phycoerythrobilin attachment, nonstandard).
Compared structures
- 1PHN · Structure of phycocyanin from cyanidium caldarium at 1.65A resolution · the same entry in another collection · chain A against A, TM-score 1.00
- P00306 · AlphaFold monomer V2.0 prediction for C-phycocyanin alpha chain (P00306) · a predicted model of the same protein · chain A against A, TM-score 0.99
- P00311 · AlphaFold monomer V2.0 prediction for C-phycocyanin beta chain (P00311) · a predicted model of the same protein · chain B against A, TM-score 0.95
Analyse
- Open in the research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides and crosslinks on the 3D structure
- Every structure of UniProt P00306
- Every structure of UniProt P00311
- Elsewhere: RCSB PDB 1PHN · PDBe 1PHN · UniProt P00306 · UniProt P00311
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