SMTL ID : 6no7.2 (1 other biounit)

Crystal Structure of the full-length wild-type PKA RIa Holoenzyme

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 3.55 Å

Oligo State

hetero-2-2-mer

Ligands

4 x MG: MAGNESIUM ION(Non-covalent)

MG.1: 4 residues within 4Å: Chain A: K.168, N.171, D.184 Ligands: ATP.3 No protein-ligand interaction detected (PLIP) MG.2: 3 residues within 4Å: Chain A: D.166, D.184 Ligands: ATP.3 3 PLIP interactions: 3 interactions with chain A Metal complexes: A:D.166, A:D.184, A:D.184 MG.4: 3 residues within 4Å: Chain C: E.170, N.171 Ligands: ATP.6 1 PLIP interactions: 1 interactions with chain C Metal complexes: C:E.170 MG.5: 5 residues within 4Å: Chain C: D.166, K.168, N.171, D.184 Ligands: ATP.6 2 PLIP interactions: 2 interactions with chain C Metal complexes: C:D.166, C:D.184

2 x ATP: ADENOSINE-5'-TRIPHOSPHATE(Non-covalent)

ATP.3: 21 residues within 4Å: Chain A: L.49, G.50, T.51, G.52, S.53, F.54, V.57, K.72, E.127, D.166, K.168, E.170, L.173, T.183, D.184, F.327, Y.330 Chain B: R.95, A.98 Ligands: MG.1, MG.2 13 PLIP interactions: 11 interactions with chain A, 2 interactions with chain B Hydrogen bonds: A:S.53, A:F.54, A:E.127, A:E.127, A:D.166, A:T.183, A:T.183, A:Y.330, B:R.95, B:A.98 Salt bridges: A:K.72, A:K.72, A:K.168 ATP.6: 18 residues within 4Å: Chain C: G.52, V.57, A.70, K.72, M.120, E.121, Y.122, V.123, E.127, D.166, K.168, E.170, N.171, L.173, T.183, D.184 Ligands: MG.4, MG.5 8 PLIP interactions: 8 interactions with chain C Hydrogen bonds: C:E.121, C:V.123, C:E.127, C:E.127, C:N.171 Salt bridges: C:K.72, C:K.72, C:K.168

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Lu, T.W. et al., Two PKA RI alpha holoenzyme states define ATP as an isoform-specific orthosteric inhibitor that competes with the allosteric activator, cAMP. Proc.Natl.Acad.Sci.USA (2019)

Release Date

2019-07-24

Peptides

cAMP-dependent protein kinase catalytic subunit alpha: AC
cAMP-dependent protein kinase type I-alpha regulatory subunit: BD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
E

C
G

B
F

D
H

cAMP-dependent protein kinase catalytic subunit alpha

cAMP-dependent protein kinase type I-alpha regulatory subunit

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