1CFD: Calcium-free calmodulin

Calcium-free calmodulin. Determined by solution NMR. Released 7 Dec 1995.

Method: Solution NMR
Organism: Xenopus laevis
Chains: 1
Atoms: 1,166
Mol. weight: 16.72 kDa
Released: 7 Dec 1995

Explore 1CFD in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

1CFD contains 9 α-helices and 4 β-strands across 1 chain. 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: 9 helices, 4 β-strands

Element	Residues	Length	Sheet
α-helix	3-5	3
α-helix	6-17	12
β-strand	26-28	3	1
α-helix	29-38	10
α-helix	45-55	11
β-strand	62-64	3	1
α-helix	65-75	11
α-helix	82-92	11
β-strand	100-101	2	2
α-helix	102-111	10
α-helix	118-127	10
β-strand	135-136	2	2
α-helix	139-146	8

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
Calmodulin	A	protein	148	Xenopus laevis	P0DP33 (AlphaFold model)

Sequence of entity 1 (A), FASTA

>1CFD_1 CALMODULIN (chains A)
ADQLTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGN
GTIDFPEFLTMMARKMKDTDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEE
VDEMIREADIDGDGQVNYEEFVQMMTAK

Primary citation

Solution structure of calcium-free calmodulin. Kuboniwa, H., Tjandra, N., Grzesiek, S. et al. Nat Struct Biol (1995) 2:768-776. DOI 10.1038/nsb0995-768 · PubMed

Other PDB entries of the same protein (UniProt P0DP33 (AlphaFold model), which also has an AlphaFold model), best resolution first:

1IQ5 1.8 Å, Calmodulin/nematode CA2+/Calmodulin dependent kinase kinase fragment
2COL 2.2 Å, Crystal structure analysis of CyaA/C-Cam with Pyrophosphate
4R8G 3.5 Å, Crystal Structure of Myosin-1c tail in complex with Calmodulin
1Y0V 3.6 Å, Crystal structure of anthrax edema factor (EF) in complex with calmodulin and…
1CFC Calcium-free calmodulin
1CFF NMR solution structure of a complex of calmodulin with a binding peptide of the CA2+-pump
1CKK Calmodulin/rat CA2+/CALMODULIN dependent protein kinase fragment
1DMO Calmodulin, NMR, 30 structures
1F70 Refined solution structure of calmodulin N-terminal domain
1F71 Refined solution structure of calmodulin C-terminal domain
1MUX Solution NMR structure of calmodulin/w-7 complex: the basis of diversity in molecular…
1NWD Solution Structure of Ca2+/Calmodulin bound to the C-terminal Domain of Petunia…

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