5AEQ: Neuronal calcium sensor 1

Neuronal calcium sensor (NCS-1)from Rattus norvegicus. Determined by X-ray diffraction at 1.95 Å resolution. Released 18 Feb 2015.

Method
X-ray diffraction
Resolution
1.95 Å
Organism
RATTUS NORVEGICUS
Chains
2
Atoms
2,941
Mol. weight
44.09 kDa
Ligands
CA
Released
18 Feb 2015

Explore 5AEQ in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

5AEQ contains 22 α-helices and 8 β-strands across 2 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.

Chain A: 11 helices, 4 β-strands

ElementResiduesLengthSheet
α-helix10-189
α-helix24-3714
β-strand42-4321
α-helix45-495
α-helix62-7211
β-strand80-8121
α-helix82-9413
α-helix97-10812
β-strand115-11732
α-helix118-13013
α-helix140-1423
α-helix145-15612
β-strand163-16532
α-helix166-17510
α-helix177-1837
Chain B: 11 helices, 4 β-strands
ElementResiduesLengthSheet
α-helix11-188
α-helix24-3714
β-strand4313
α-helix45-5511
α-helix62-7211
β-strand8013
α-helix82-9413
α-helix97-10812
β-strand116-11724
α-helix118-13215
α-helix140-1423
α-helix145-15612
β-strand163-16424
α-helix166-17510
α-helix177-1837

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Neuronal calcium sensor 1A, Bprotein190RATTUS NORVEGICUSP62168 (AlphaFold model)
Sequence of entity 1 (A, B), FASTA
>5AEQ_1 NEURONAL CALCIUM SENSOR 1 (chains A, B)
MGKSNSKLKPEVVEELTRKTYFTEKEVQQWYKGFIKDCPSGQLDAAGFQKIYKQFFPFGD
PTKFATFVFNVFDENKDGRIEFSEFIQALSVTSRGTLDEKLRWAFKLYDLDNDGYITRNE
MLDIVDAIYQMVGNTVELPEEENTPEKRVDRIFAMMDKNADGKLTLQEFQEGSKADPSIV
QALSLYDGLV

Ligands and cofactors

IDNameFormulaCopies
CACalcium ionCa6

Water and common crystallization additives (NA) are not listed.

Primary citation

Neuronal Calcium Sensor-1 Binds the D2 Dopamine Receptor and G-Protein-Coupled Receptor Kinase 1 (Grk1) Peptides Using Different Modes of Interactions. Pandalaneni, S., Karuppiah, V., Saleem, M. et al. J Biol Chem (2015) 290:18744. DOI 10.1074/JBC.M114.627059 · PubMed

Other PDB entries of the same protein (UniProt P62168 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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