Structure of PDB 3ksa Chain B

Receptor sequence
>3ksaB (length=474) Species: 1313 (Streptococcus pneumoniae) [Search protein sequence]
NIQNMSLEDIMGERFGRYSKYIIQDRALPDIRDGLKPVQRRILYSMNKDS
NTFDKSYRKSAKSVGNIMGNFHPHGDSSIYDAMVRMSQNWKNREILVEMH
GNNGSMDGDPPAAMRYTEARLSEIAGYLLQDIEKKTVPFAWNFDDTEKEP
TVLPAAFPNLLVNGSTGISAGYATDIPPHNLAEVIDAAVYMIDHPTAKID
KLMEFLPGPDFPTGAIIQGRDEIKKAYETGKGRVVVRSKTEIEKQIVITE
IPYEINKANLVKKIDDVRVNNKVAGIAVRDESDRDGLRIAIELKKDANTE
LVLNYLFKYTDLQINYNFNMVAIDNFTPRQVGIVPILSSYIAHRREVILA
RSRFDKEKAEKRLHIVEGLIRVISILDEVIALIRASENKADAKENLKVSY
DFTEEQAEAIVTLQLYRLTNTDVVVLQEEEAELREKIAMLAAIIGDERTM
YNLMKKELREVKKKFATPRLSSLE
3D structure
PDB3ksa Structural Basis of Gate-DNA Breakage and Resealing by Type II Topoisomerases
ChainB
Resolution3.3 Å
3D
structure
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Enzymatic activity
Enzyme Commision number 5.6.2.2: DNA topoisomerase (ATP-hydrolyzing).
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 dna B R28 K38 V40 H74 H76 R87 K93 I170 R26 K36 V38 H72 H74 R85 K91 I168
BS02 dna B R117 Y118 I170 G173 R115 Y116 I168 G171
Gene Ontology
Molecular Function
GO:0003677 DNA binding
GO:0003918 DNA topoisomerase type II (double strand cut, ATP-hydrolyzing) activity
GO:0005524 ATP binding
Biological Process
GO:0006259 DNA metabolic process
GO:0006265 DNA topological change
Cellular Component
GO:0005694 chromosome

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:3ksa, PDBe:3ksa, PDBj:3ksa
PDBsum3ksa
PubMed20596531
UniProtP72525|PARC_STRPN DNA topoisomerase 4 subunit A (Gene Name=parC)

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