3TMH: Dual-specific A-kinase anchoring protein 2

Crystal structure of dual-specific A-kinase anchoring protein 2 in complex with cAMP-dependent protein kinase A type II alpha and PDZK1. Determined by X-ray diffraction at 3.8 Å resolution. Released 5 Sept 2012.

Method
X-ray diffraction
Resolution
3.8 Å
Organisms
Homo sapiens, Rattus norvegicus
Chains
10
Atoms
3,553
Mol. weight
65.26 kDa
Released
5 Sept 2012

Explore 3TMH in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

3TMH contains 22 α-helices and 29 β-strands across 10 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chains A and E: 4 helices, 8 β-strands

ElementResiduesLengthSheet
β-strand376-38271
β-strand38412
β-strand38712
β-strand391-39551
β-strand401-40221
α-helix406-4072
α-helix411-4144
α-helix4211
β-strand422-42651
β-strand429-43021
α-helix436-44510
β-strand449-45571
Chains B and F: 2 helices, 0 β-strands
ElementResiduesLengthSheet
α-helix9-2113
α-helix29-4214
Chain C: 2 helices, 0 β-strands
ElementResiduesLengthSheet
α-helix9-2113
α-helix29-4012
Chains D and L: 1 helix, 1 β-strand
ElementResiduesLengthSheet
α-helix637-65115
β-strand657-66151
Chain G: 2 helices, 0 β-strands
ElementResiduesLengthSheet
α-helix9-2113
α-helix29-3810
Chain H: 1 helix, 1 β-strand
ElementResiduesLengthSheet
α-helix641-65111
β-strand657-66153
Chain I: 3 helices, 10 β-strands
ElementResiduesLengthSheet
β-strand376-38275
β-strand38416
β-strand38716
β-strand391-39555
β-strand39617
β-strand39817
β-strand401-40225
α-helix411-4144
α-helix4211
β-strand422-42655
β-strand429-43025
α-helix436-44510
β-strand449-45575

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Na(+)/H(+) exchange regulatory cofactor NHE-RF3A, E, Iprotein87Homo sapiensQ5T2W1 (AlphaFold model)
cAMP-dependent protein kinase type II-alpha regulatory subunitB, C, F, Gprotein48Rattus norvegicusP12368 (AlphaFold model)
A-kinase anchor protein 10, mitochondrialD, H, Lprotein45Homo sapiensO43572 (AlphaFold model)
Sequence of entity 1 (A, E, I), FASTA
>3TMH_1 Na(+)/H(+) exchange regulatory cofactor NHE-RF3 (chains A, E, I)
GSKPKLCRLAKGENGYGFHLNAIRGLPGSFIKEVQKGGPADLAGLEDEDVIIEVNGVNVL
DEPYEKVVDRIQSSGKNVTLLVCGKKA
Sequence of entity 2 (B, C, F, G), FASTA
>3TMH_2 cAMP-dependent protein kinase type II-alpha regulatory subunit (chains B, C, F, G)
GSHMGHIQIPPGLTELLQGYTVEVLRQQPPDLVDFAVEYFTRLREARR
Sequence of entity 3 (D, H, L), FASTA
>3TMH_3 A-kinase anchor protein 10, mitochondrial (chains D, H, L)
GSPEFVQGNTDEAQEELAWKIAKMIVSDVMQQAQYDQPLEKSTKL

Primary citation

Differential mode of D-AKAP2 to PKA isoforms: Insights from D-AKAP2 PKA RII PDZK1 ternary complex structure. Sarma, G.N., Phan, R.H., Sankaran, B. et al. To be published.

Other PDB entries of the same protein (UniProt Q5T2W1 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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