2RAX: Borealin

Crystal structure of Borealin (20-78) bound to Survivin (1-120). Determined by X-ray diffraction at 3.3 Å resolution. Released 30 Oct 2007.

Method
X-ray diffraction
Resolution
3.3 Å
Organism
Homo sapiens
Chains
6
Atoms
4,279
Mol. weight
67.34 kDa
Ligands
ZN
Released
30 Oct 2007

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

Secondary structure: helices and β-sheets

2RAX contains 31 α-helices and 15 β-strands across 6 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: 7 helices, 4 β-strands

ElementResiduesLengthSheet
α-helix11-133
α-helix15-206
α-helix35-384
β-strand43-4531
β-strand55-5731
β-strand63-6421
α-helix73-808
α-helix85-873
α-helix93-953
β-strand9712
α-helix98-11518
Chain B: 3 helices, 1 β-strand
ElementResiduesLengthSheet
α-helix24-5936
α-helix63-664
β-strand6912
α-helix70-734
Chain E: 7 helices, 4 β-strands
ElementResiduesLengthSheet
α-helix11-133
α-helix15-206
α-helix35-384
β-strand43-4533
β-strand55-5733
β-strand63-6423
α-helix73-808
α-helix85-873
α-helix93-953
β-strand9714
α-helix98-11821
Chain F: 3 helices, 1 β-strand
ElementResiduesLengthSheet
α-helix24-6037
α-helix63-675
β-strand6914
α-helix70-734
Chain X: 8 helices, 4 β-strands
ElementResiduesLengthSheet
α-helix8-136
α-helix15-206
α-helix35-384
α-helix39-413
β-strand43-4535
β-strand55-5735
β-strand63-6425
α-helix73-808
α-helix85-884
α-helix93-953
β-strand9716
α-helix98-11821
Chain Y: 3 helices, 1 β-strand
ElementResiduesLengthSheet
α-helix24-6037
α-helix63-664
β-strand6916
α-helix70-734

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Baculoviral IAP repeat-containing protein 5A, E, Xprotein123Homo sapiensO15392 (AlphaFold model)
BorealinB, F, Yprotein68Homo sapiensQ53HL2 (AlphaFold model)
Sequence of entity 1 (A, E, X), FASTA
>2RAX_1 Baculoviral IAP repeat-containing protein 5 (chains A, E, X)
GSHMGAPTLPPAWQPFLKDHRISTFKNWPFLEGCACTPERMAEAGFIHCPTENEPDLAQC
FFCFKELEGWEPDDDPIEEHKKHSSGCAFLSVKKQFEELTLGEFLKLDRERAKNKIAKET
NNK
Sequence of entity 2 (B, F, Y), FASTA
>2RAX_2 Borealin (chains B, F, Y)
MKLASFLKDFDREVEIRIKQIESDRQNLLKEVDNLYNIEILRLPKALREMNWLDYFALGG
WSHPQFEK

Ligands and cofactors

IDNameFormulaCopies
ZNZinc ionZn3

Primary citation

The mitotic regulator Survivin binds as a monomer to its functional interactor Borealin. Bourhis, E., Hymowitz, S.G., Cochran, A.G. J Biol Chem (2007) 282:35018-35023. DOI 10.1074/jbc.M706233200 · PubMed

Other PDB entries of the same protein (UniProt O15392 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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