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Crystal structure of bacillus halodurans ribonuclease H1 K196A in complex with an RNA/DNA hybrid: reaction in 4 mm MN2+ and 200 mm K+ for 240 S at 21 C
Analyse Crystal structure of bacillus halodurans ribonuclease H1 K196A in complex with… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.
- PDB
- 6DPK
- Type
- protein + DNA + RNA
- Length
- 147 residues
- Chains
- 4
- Method
- x-ray diffraction
- Collection
- MolNFT v1 / PDB
- Contract
- 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
- Owner
- 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
- Molecule
- Ribonuclease H; 5'-R(*AP*CP*AP*U)-3' portion of cleaved RNA 5'- R(*AP*CP*AP*UP*CP*G)-3'…
- EC
- 3.1.26.4
- UniProt
- Q9KEI9
- Ligands
- MN, K, IOD
Structure
x-ray diffraction · 4 distinct chains · 36% helix, 26% strand (DSSP).
| Chain | Molecule | Type | Residues | Secondary structure | UniProt |
|---|---|---|---|---|---|
| A | Ribonuclease H (EC 3.1.26.4) | protein | 135 | 36% helix, 26% strand | Q9KEI9 |
| B | 5'-R(*AP*CP*AP*U)-3' portion of cleaved RNA 5'- R(*AP*CP*AP*UP*CP*G)-3' | rna | 4 | — | — |
| b | 5'-R(P*CP*G)-3' portion of cleaved RNA (5'- R(*AP*CP*AP*UP*CP*G)-3') | rna | 2 | — | — |
| C | DNA (5'-D(*CP*GP*AP*TP*GP*T)-3') | dna | 6 | — | — |
Ligands and binding sites
- MN · Manganese (II) ion · metal · 4 copies · chains A, b, B
- K · Potassium ion · metal · 2 copies · chains A, B, b, C
- IOD · Iodide ion · ion · 3 copies · chains A
- EDO · 1,2-ethanediol · additive · 5 copies · chains A, C
- GOL · Glycerol · additive · 4 copies · chains A, b, C
Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.
Interfaces
6 interfaces between chains.
- A–C · 436 Ų buried · 15 hydrogen bonds · protein-nucleic
- A–b · 275 Ų buried · 11 hydrogen bonds · protein-nucleic
- A–B · 268 Ų buried · 14 hydrogen bonds · protein-nucleic
- B–C · 188 Ų buried · 18 hydrogen bonds · nucleic-nucleic
- b–C · 146 Ų buried · 8 hydrogen bonds · nucleic-nucleic
Compared structures
- 6DPK · Crystal Structure of Bacillus Halodurans Ribonuclease H1 K196A in Complex with an RNA/DNA… · the same entry in another collection · chain A against A, TM-score 1.00
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 Q9KEI9
- Elsewhere: RCSB PDB 6DPK · PDBe 6DPK · UniProt Q9KEI9
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