MolNFT v1 · #21821 · protein
Protein kinase a variant complex with completely ordered N-terminal helix
1SMH · Camp-dependent protein kinase, alpha-catalytic subunit: “Protein kinase a variant complex with completely ordered N-terminal helix”. X-ray diffraction, 1 ligand (MG8), 6 pockets (best druggability 0.82). MolNFT v1 #21821 on…
- PDB
- 1SMH
- Type
- protein
- Length
- 370 residues
- Chains
- 2
- Method
- x-ray diffraction
- Collection
- MolNFT v1 / PDB
- Contract
- 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
- Owner
- 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
- Molecule
- Camp-dependent protein kinase, alpha-catalytic subunit; Camp-dependent protein kinase…
- EC
- 2.7.1.37
- UniProt
- P00517, P04541
- Ligands
- MG8
- Pockets
- 6 · best druggability 0.82
Structure
x-ray diffraction · 2 distinct chains · 41% helix, 15% strand (DSSP).
| Chain | Molecule | Type | Residues | Secondary structure | UniProt |
|---|---|---|---|---|---|
| A | Camp-dependent protein kinase, alpha-catalytic subunit (EC 2.7.1.37) | protein | 350 | 41% helix, 15% strand | P00517 |
| B | Camp-dependent protein kinase inhibitor, alpha form | protein | 20 | 30% helix, 5% strand | P04541 |
Ligands and binding sites
- MG8 · N-octanoyl-N-methylglucamine · ligand · chains A
- BU3 · (R,R)-2,3-butanediol · additive · 6 copies · chains A, B
Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.
Pockets
6 pockets found on a 1 Å grid, 2 with a druggability of 0.5 or more.
| Volume (ų) | Druggability | Buriedness | Lining residues | Inside | |
|---|---|---|---|---|---|
| 1 | 394 | 0.82 | 0.90 | 41 | empty |
| 2 | 176 | 0.59 | 0.82 | 25 | MG8 |
| 3 | 78 | 0.40 | 0.79 | 17 | BU3 |
| 4 | 76 | 0.30 | 0.73 | 16 | empty |
| 5 | 54 | 0.30 | 0.76 | 18 | empty |
Interfaces
1 interface between chains.
- A–B · 1008 Ų buried · 24 hydrogen bonds · protein-protein
Modifications
Observed in the structure: 2 modified (phosphorylation).
Compared structures
- 1SMH · Protein kinase A variant complex with completely ordered N-terminal helix · 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 P00517
- Every structure of UniProt P04541
- Elsewhere: RCSB PDB 1SMH · PDBe 1SMH · UniProt P00517 · UniProt P04541
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