8SR6: Eukaryotic huntingtin interacting protein B

Crystal structure of legAS4 from Legionella pneumophila subsp. pneumophila with histone H3 (3-17)peptide. Determined by X-ray diffraction at 2.22 Å resolution. Released 13 Mar 2024.

Method
X-ray diffraction
Resolution
2.22 Å
Organisms
Legionella pneumophila subsp. pneumophila, Homo sapiens
Chains
2
Atoms
3,964
Mol. weight
54.75 kDa
Ligands
SAH
Released
13 Mar 2024

Explore 8SR6 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

8SR6 contains 31 α-helices and 31 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: 31 helices, 28 β-strands

ElementResiduesLengthSheet
α-helix84-863
α-helix89-968
α-helix103-1053
β-strand10611
β-strand117-12152
α-helix123-1286
β-strand131-13552
β-strand13913
β-strand144-14744
β-strand151-15445
α-helix155-16410
β-strand173-17645
β-strand179-18245
β-strand18711
α-helix189-1924
β-strand194-19524
β-strand202-20984
β-strand212-21984
β-strand22313
α-helix2271
β-strand22812
α-helix2291
β-strand230-23124
β-strand23616
α-helix238-2436
α-helix256-2627
α-helix264-2663
β-strand268-27147
β-strand27618
α-helix277-2793
β-strand28118
β-strand286-28947
α-helix291-2988
α-helix302-3043
α-helix310-3123
α-helix315-3162
β-strand31719
β-strand318-31927
β-strand320110
β-strand326110
α-helix327-3282
β-strand33519
α-helix337-3448
α-helix347-3559
α-helix371-38010
α-helix386-39712
β-strand405111
β-strand411111
α-helix412-4198
α-helix422-43413
α-helix441-4444
β-strand446112
α-helix454-4607
α-helix464-47310
α-helix477-4826
α-helix487-50014
α-helix506-51712
α-helix519-5213
α-helix525-5317
Chain B: 0 helices, 3 β-strands
ElementResiduesLengthSheet
β-strand5112
β-strand1016
β-strand1415

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Eukaryotic huntingtin interacting protein BAprotein451Legionella pneumophila subsp. pneumophilaQ5ZUS4 (AlphaFold model)
Histone 3 peptideBprotein15Homo sapiensQ6NXT2 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>8SR6_1 Eukaryotic huntingtin interacting protein B (chains A)
NADEWIDTSKIMLDLHIDNMSSSDYIPSAIDRTDLVMVQSVHLLRKTGGRGLFAREDIPK
GTCIGIYTGEVYSEQEFEQYLKEHVGSDKSYAMYVGGRVIDAARKGNLTRYINFSDSQDN
AEFVETTLNRKKVAKVITTKNIKAGQQLLINYNTYEEQASRYYYFLNPGDGWLSAQEFYQ
TYQSQYRLEQMPYNLEGFDLKAGDRVLMTQIGRIILANYSLAKEQELNASDIDLPFLKVG
SDEKILDFDEADTFTPLMAACYLGQVENVKWLIEHGANIDQQQSHSGHCPLSLTLKGYSL
AKDTQKYIDIIQLLIKNQVNLLVHDRSDKTFLHNAALVLNNLDFQSVVKFLIGQNPIDIN
EYFTYIDENDFDIVMHCYNNKLFDKALVLLAFYPDYFKRNYMSDNEGHNQFNINAFRKAI
KDFNSNERSILLMQLRESGLHLPEDLLEQLG
Sequence of entity 2 (B), FASTA
>8SR6_2 Histone 3 peptide (chains B)
TKQTARKSTGGKAPR

Ligands and cofactors

IDNameFormulaCopies
SAHS-adenosyl-L-homocysteineC14 H20 N6 O5 S1

Water and common crystallization additives (K, EDO, PEG, GOL) are not listed.

Primary citation

The SET and ankyrin domains of the secreted Legionella pneumophila histone methyltransferase work together to modify host chromatin. Rolando, M., Wah Chung, I.Y., Xu, C. et al. mBio (2023) 14:e0165523-e0165523. DOI 10.1128/mbio.01655-23 · PubMed

Other PDB entries of the same protein (UniProt Q5ZUS4 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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