Structure of PDB 4enq Chain A

Receptor sequence
>4enqA (length=725) Species: 83333 (Escherichia coli K-12) [Search protein sequence]
LAPEDGSHRPAAEPTPPGAQPTAPGSLKAPDTRNEKLNSLEDVRKGSENY
ALTTNQGVRIADDQNSLRAGSRGPTLLEDFILREKITHFDHERIPERIVH
ARGSAAHGYFQPYKSLSDITKADFLSDPNKITPVFVRFSTVQGGAGSADT
VRDIRGFATKFYTEEGIFDLVGNNTPIFFIQDAHKFPDFVHAVKPEPHWA
IPQGQSAHDTFWDYVSLQPETLHNVMWAMSDRGIPRSYRTMEGFGIHTFR
LINAEGKATFVRFHWKPLAGKASLVWDEAQKLTGRDPDFHRRELWEAIEA
GDFPEYELGFQLIPEEDEFKFDFDLLDPTKLIPEELVPVQRVGKMVLNRN
PDNFFAENEQAAFHPGHIVPGLDFTNDPLLQGRLFSYTDTQISRLGGPNF
HEIPINRPTCPYHNFQRDGMHRMGIDTNPANYEPNSINDNWPRETPPGPK
RGGFESYQERVEGNKVRERSPSFGEYYSHPRLFWLSQTPFEQRHIVDGFS
FDLSKVVRPYIRERVVDQLAHIDLTLAQAVAKNLGIELTDDQLNITPPPD
VNGLKKDPSLSLYAIPDGDVKGRVVAILLNDEVRSADLLAILKALKAKGV
HAKLLYSRMGEVTADDGTVLPIAATFAGAPSLTVDAVIVPCGNIADIADN
GDANYYLMEAYKHLKPIALAGDARKFKATIKIADQGEEGIVEADSADGSF
MDELLTLMAAHRVWSRIPKIDKIPA
3D structure
PDB4enq Influence of main channel structure on H(2)O(2) access to the heme cavity of catalase KatE of Escherichia coli.
ChainA
Resolution1.9 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) H128 N201 H392
Catalytic site (residue number reindexed from 1) H100 N173 H364
Enzyme Commision number 1.11.1.6: catalase.
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 HDD A R125 V127 H128 R165 V199 G200 N201 F206 F214 I274 H275 F391 L407 R411 S414 Y415 T418 Q419 R97 V99 H100 R137 V171 G172 N173 F178 F186 I246 H247 F363 L379 R383 S386 Y387 T390 Q391
Gene Ontology
Molecular Function
GO:0004096 catalase activity
GO:0004601 peroxidase activity
GO:0005506 iron ion binding
GO:0020037 heme binding
GO:0042802 identical protein binding
GO:0046872 metal ion binding
Biological Process
GO:0006972 hyperosmotic response
GO:0006974 DNA damage response
GO:0006979 response to oxidative stress
GO:0042744 hydrogen peroxide catabolic process
GO:0098869 cellular oxidant detoxification
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:4enq, PDBe:4enq, PDBj:4enq
PDBsum4enq
PubMed22820098
UniProtP21179|CATE_ECOLI Catalase HPII (Gene Name=katE)

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