MolNFT v1 · #20027 · protein
Crystal structure of the cyanobacterial metallothionein repressor smtb in the ZN1-form (one ZN(II) per dimer)
1R23 · Transcriptional repressor smtb: “Crystal structure of the cyanobacterial metallothionein repressor smtb in the ZN1-form (one ZN(II) per dimer)”. X-ray diffraction, 1 ligand (ZN). MolNFT v1 #20027 on GenesisL1: 3D structure, binding…
- PDB
- 1R23
- Type
- protein
- Length
- 201 residues
- Chains
- 2
- Method
- x-ray diffraction
- Collection
- MolNFT v1 / PDB
- Contract
- 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
- Owner
- 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
- Molecule
- Transcriptional repressor smtb
- UniProt
- P30340
- Ligands
- ZN
Structure
x-ray diffraction · 2 distinct chains · 62% helix, 13% strand (DSSP).
| Chain | Molecule | Type | Residues | Secondary structure | UniProt |
|---|---|---|---|---|---|
| A | Transcriptional repressor smtb | protein | 104 | 61% helix, 13% strand | P30340 |
| B | Transcriptional repressor smtb | protein | 97 | 63% helix, 13% strand | P30340 |
Ligands and binding sites
- ZN · Zinc ion · metal · chains A, B
Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.
Interfaces
1 interface between chains.
- A–B · 2094 Ų buried · 18 hydrogen bonds · protein-protein
Compared structures
- 1R23 · Crystal structure of the cyanobacterial metallothionein repressor SmtB in the Zn1-form… · the same entry in another collection · chain A against A, TM-score 1.00
- P30340 · AlphaFold monomer V2.0 prediction for transcriptional repressor smtb (P30340) · a predicted model of the same protein · chain B against A, TM-score 0.97
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 P30340
- Elsewhere: RCSB PDB 1R23 · PDBe 1R23 · UniProt P30340
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