7U0T: Human Calcineurin A - Calcineurin B fusion

Crystal Structure of a human Calcineurin A - Calcineurin B fusion bound to FKBP12 and FK-520. Determined by X-ray diffraction at 2.45 Å resolution. Released 3 Aug 2022.

Method
X-ray diffraction
Resolution
2.45 Å
Organism
Homo sapiens
Chains
2
Atoms
2,400
Mol. weight
44.76 kDa
Ligands
KXX, CA
Released
3 Aug 2022

Explore 7U0T in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

7U0T contains 19 α-helices and 14 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: 15 helices, 6 β-strands

ElementResiduesLengthSheet
α-helix-45--433
α-helix-40--2120
α-helix16-2712
β-strand3711
α-helix39-424
α-helix46-483
α-helix54-618
β-strand6911
α-helix71-788
α-helix79-813
β-strand8212
α-helix87-9812
β-strand105-10623
α-helix108-11912
α-helix120-1223
α-helix125-13915
β-strand147-14823
α-helix149-1568
α-helix157-1593
α-helix161-1633
β-strand16712
Chain B: 4 helices, 8 β-strands
ElementResiduesLengthSheet
β-strand2-874
β-strand21-30104
β-strand35-3844
α-helix39-424
β-strand46-4944
α-helix57-648
β-strand71-7664
α-helix78-803
β-strand8715
β-strand9115
α-helix921
β-strand97-106104

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Serine/threonine-protein phosphatase 2B catalytic subunit gamma isoform,Calcineurin subunit B type…Aprotein244Homo sapiensP48454 (AlphaFold model), P63098 (AlphaFold model)
Peptidylprolyl isomeraseBprotein150Homo sapiensP62942 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>7U0T_1 Serine/threonine-protein phosphatase 2B catalytic subunit gamma isoform,Calcineurin subunit B type 1 fusion (chains A)
MSGSHHHHHHHHGGENLYFQGSSPHPYWLPNFMDVFTWSLPFVGEKVTEMLVNVLNICGG
GSSGGSTSGGSSGGGGNEASYPLEMCSHFDADEIKRLGKRFKKLDLDNSGSLSVEEFMSL
PELQQNPLVQRVIDIFDTDGNGEVDFKEFIEGVSQFSVKGDKEQKLRFAFRIYDMDKDGY
ISNGELFQVLKMMVGNNLKDTQLQQIVDKTIINADKDGDGRISFEEFCAVVGGLDIHKKM
VVDV
Sequence of entity 2 (B), FASTA
>7U0T_2 Peptidylprolyl isomerase (chains B)
MSGSHHHHHHHHGGENLYFQGSGLNDIFEAQKIEWHEGSSGSSGVQVETISPGDGRTFPK
RGQTCVVHYTGMLEDGKKFDSSRDRNKPFKFMLGKQEVIRGWEEGVAQMSVGQRAKLTIS
PDYAYGATGHPGIIPPHATLVFDVELLKLE

Ligands and cofactors

IDNameFormulaCopies
KXX(3S,4R,5S,8R,9E,12S,14S,15R,16S,18R,19R,22R,26aS)-8-ethyl-5,19-dihydroxy-3-{(1E…C43 H69 N O121
CACalcium ionCa4

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

Primary citation

Structure-Guided Synthesis of FK506 and FK520 Analogs with Increased Selectivity Exhibit In Vivo Therapeutic Efficacy against Cryptococcus. Hoy, M.J., Park, E., Lee, H. et al. mBio (2022) 13:e0104922-e0104922. DOI 10.1128/mbio.01049-22 · PubMed

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