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The crystal structure of plant specific calcium binding protein AtCBL2 in complex with the regulatory domain of AtCIPK14

X-ray diffraction
1.2Å resolution
PDB entry 2zfd coloured by chain, front view.
PDB entry 2zfd coloured by chain, side view.
PDB entry 2zfd coloured by chain, top view.
Source organism: Arabidopsis thaliana
Assembly composition:
hetero dimer (preferred)
Entry contents: 2 distinct polypeptide molecules

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Calcineurin B-like protein 2 and CBL-interacting serine/threonine-protein kinase 14
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Multimeric state: hetero dimer
Accessible surface area: 14459.34 Å2
Buried surface area: 3618.69 Å2
Dissociation area: 1,600.96 Å2
Dissociation energy (ΔGdiss): 25.17 kcal/mol
Dissociation entropy (TΔSdiss): 11.83 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-185275

Macromolecules

Calcineurin B-like protein 2
Chain: A
Length: 226 amino acids
Theoretical weight: 25.84 KDa
Source organism: Arabidopsis thaliana
Expression system: Escherichia coli
UniProt:
  • Canonical: Q8LAS7 (Residues: 1-226; Coverage: 100%)
Gene names: At5g55990, CBL2, MDA7.3, SCABP1
Pfam: EF hand
InterPro:
CATH: EF-hand
SCOP: Calmodulin-like
Calcineurin B-like protein 2 in PDB entry 2zfd, assembly 1, front view.
Calcineurin B-like protein 2 in PDB entry 2zfd, assembly 1, side view.
Calcineurin B-like protein 2 in PDB entry 2zfd, assembly 1, top view.
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CBL-interacting serine/threonine-protein kinase 14
Chain: B
Length: 123 amino acids
Theoretical weight: 14.06 KDa
Source organism: Arabidopsis thaliana
Expression system: Escherichia coli
UniProt:
  • Canonical: Q9LZW4 (Residues: 305-427; Coverage: 28%)
Gene names: At5g01820, CIPK14, PKS24, SR1, SnRK3.15, T20L15.90
Pfam: NAF domain
InterPro:
CATH: Kinase associated domain 1, KA1
CBL-interacting serine/threonine-protein kinase 14 in PDB entry 2zfd, assembly 1, front view.
CBL-interacting serine/threonine-protein kinase 14 in PDB entry 2zfd, assembly 1, side view.
CBL-interacting serine/threonine-protein kinase 14 in PDB entry 2zfd, assembly 1, top view.
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