2WPT: Im2

The crystal structure of Im2 in complex with colicin E9 DNase. Determined by X-ray diffraction at 1.78 Å resolution. Released 2 Jun 2010.

Method
X-ray diffraction
Resolution
1.78 Å
Organism
ESCHERICHIA COLI
Chains
2
Atoms
1,725
Mol. weight
25.49 kDa
Released
2 Jun 2010

Explore 2WPT in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

2WPT contains 14 α-helices and 15 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: 5 helices, 2 β-strands

ElementResiduesLengthSheet
α-helix7-93
β-strand1111
α-helix12-2312
α-helix30-4415
α-helix51-544
α-helix64-7714
β-strand8411
Chain B: 9 helices, 13 β-strands
ElementResiduesLengthSheet
β-strand9-1022
β-strand1213
β-strand1614
α-helix22-265
β-strand32-3325
α-helix341
β-strand3514
α-helix36-427
β-strand46-4722
α-helix50-6314
α-helix65-684
α-helix73-808
α-helix83-853
β-strand8616
α-helix87-882
α-helix89-913
β-strand9317
β-strand9617
β-strand9816
β-strand100-10345
β-strand11513
β-strand119-12245

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Colicin-E2 immunity proteinAprotein86ESCHERICHIA COLIP04482 (AlphaFold model)
Colicin-E9Bprotein134ESCHERICHIA COLIP09883 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>2WPT_1 COLICIN-E2 IMMUNITY PROTEIN (chains A)
MELKHSISDYTEAEFLEFVKKIARAEGATECDDNKLVREFERLTEHPDGSDLIYYPRDDR
EDSPEGIVKEIKEWRAANGKSGFKQG
Sequence of entity 2 (B), FASTA
>2WPT_2 COLICIN-E9 (chains B)
MESKRNKPGKATGKGKPVGDKWLDDAGKDSGAPIPDRIADKLRDKEFKSFDDFRKAVWEE
VSKDPELSKNLNPSNKSSVSKGYSPFTPKNQQVGCRKVYELHHDKPISQGGEVYDMDNIR
VTTPKRHIDIHRGK

Primary citation

The Structural and Energetic Basis for High Selectivity in a High-Affinity Protein-Protein Interaction. Meenan, N.A., Sharma, A., Fleishman, S.J. et al. Proc Natl Acad Sci U S A (2010) 107:10080. DOI 10.1073/PNAS.0910756107 · PubMed

Other PDB entries of the same protein (UniProt P04482 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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