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(-) Description

Title :  STRUCTURE OF HELICOBACTER PYLORI CATALASE WITH FORMIC ACID BOUND
 
Authors :  P. C. Loewen, X. Carpena, R. Perez-Luque, C. Rovira, R. Haas, S. Odenbre P. Nicholls, I. Fita
Date :  02 Sep 03  (Deposition) - 30 Mar 04  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.60
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A,B  (2x)
Keywords :  Beta Barrel, Azide Complex, Formate Complex, Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  P. C. Loewen, X. Carpena, C. Rovira, A. Ivancich, R. Perez-Luque, R. Haas, S. Obenbreit, P. Nicholls, I. Fita
Structure Of Helicobacter Pylori Catalase, With And Without Formic Acid Bound, At 1. 6 A Resolution
Biochemistry V. 43 3089 2004
PubMed-ID: 15023060  |  Reference-DOI: 10.1021/BI035663I

(-) Compounds

Molecule 1 - KATA CATALASE
    Chains: A, B
    EC Number: 1.11.1.6
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PSO100
    Expression System Strain: UM255
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: KATA (HP0875)
    Organism Scientific: HELICOBACTER PYLORI
    Organism Taxid: 210

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit : AB
Biological Unit 1 (2x): AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 39)

Asymmetric Unit (3, 39)
No.NameCountTypeFull Name
1AZI1Ligand/IonAZIDE ION
2FMT36Ligand/IonFORMIC ACID
3HEM2Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
Biological Unit 1 (3, 78)
No.NameCountTypeFull Name
1AZI2Ligand/IonAZIDE ION
2FMT72Ligand/IonFORMIC ACID
3HEM4Ligand/IonPROTOPORPHYRIN IX CONTAINING FE

(-) Sites  (39, 39)

Asymmetric Unit (39, 39)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREARG A:47 , ARG A:344 , FMT A:1713 , FMT A:1735 , ARG B:47 , TYR B:345BINDING SITE FOR RESIDUE AZI A 2600
02AC2SOFTWAREASP A:46 , ARG A:53 , VAL A:54 , VAL A:55 , HIS A:56 , ARG A:93 , GLY A:112 , VAL A:127 , GLY A:128 , ASN A:129 , ALA A:139 , PHE A:142 , GLY A:197 , SER A:198 , HIS A:199 , PHE A:315 , MET A:331 , ARG A:335 , SER A:338 , TYR A:339 , THR A:342 , HIS A:343 , ARG A:346 , FMT A:1701 , HOH A:2606 , HOH A:2629 , HOH A:2668BINDING SITE FOR RESIDUE HEM A 550
03AC3SOFTWAREASP B:46 , ARG B:53 , VAL B:54 , VAL B:55 , HIS B:56 , ARG B:93 , GLY B:112 , PHE B:113 , ALA B:114 , VAL B:127 , GLY B:128 , ASN B:129 , ALA B:139 , PHE B:142 , GLY B:197 , SER B:198 , PHE B:315 , MET B:331 , ARG B:335 , SER B:338 , TYR B:339 , THR B:342 , HIS B:343 , ARG B:346 , FMT B:1702 , HOH B:1739 , HOH B:1745 , HOH B:1792BINDING SITE FOR RESIDUE HEM B 550
04AC4SOFTWAREHIS A:56 , ASN A:129 , PHE A:134 , PHE A:142 , HEM A:550BINDING SITE FOR RESIDUE FMT A 1701
05AC5SOFTWAREHIS B:56 , VAL B:97 , ASN B:129 , PHE B:134 , HEM B:550BINDING SITE FOR RESIDUE FMT B 1702
06AC6SOFTWAREARG B:108 , ASP B:109 , PRO B:110 , PHE B:135 , GLN B:149 , VAL B:180BINDING SITE FOR RESIDUE FMT B 1703
07AC7SOFTWAREGLN A:149 , VAL A:163 , TRP A:167 , MET A:181 , HOH A:3041BINDING SITE FOR RESIDUE FMT A 1704
08AC8SOFTWAREGLN B:149 , PRO B:158 , VAL B:163 , FMT B:1707 , HOH B:1827 , HOH B:2015 , HOH B:2224BINDING SITE FOR RESIDUE FMT B 1705
09AC9SOFTWAREPRO A:158 , HIS A:160 , HOH A:2784 , HOH A:2855BINDING SITE FOR RESIDUE FMT A 1706
10BC1SOFTWAREFMT B:1705 , HOH B:1977 , HOH B:2112BINDING SITE FOR RESIDUE FMT B 1707
11BC2SOFTWAREHIS B:160 , GLU B:450 , SER B:451 , HIS B:454 , HOH B:1817 , HOH B:1986BINDING SITE FOR RESIDUE FMT B 1708
12BC3SOFTWAREASP A:183 , ARG A:184 , VAL A:223 , GLU A:440 , HOH A:2717 , HOH A:2732BINDING SITE FOR RESIDUE FMT A 1709
13BC4SOFTWARELYS A:58 , ARG A:101 , GLY A:102 , ARG A:151 , ASN A:156 , FMT A:1734 , HOH A:2845 , HOH A:2890BINDING SITE FOR RESIDUE FMT A 1710
14BC5SOFTWARELYS A:150 , ARG A:151 , HOH A:2607 , HOH A:2652 , HOH A:3040BINDING SITE FOR RESIDUE FMT A 1711
15BC6SOFTWAREALA B:57 , LYS B:58 , GLY B:59 , ARG B:101 , TYR B:306 , GLU B:311 , FMT B:1720 , HOH B:2207BINDING SITE FOR RESIDUE FMT B 1712
16BC7SOFTWAREARG A:47 , TYR A:345 , AZI A:2600 , HOH A:2654 , ARG B:344BINDING SITE FOR RESIDUE FMT A 1713
17BC8SOFTWAREASN A:130 , TRP A:179 , ARG A:184 , ASP A:194 , HOH A:2694BINDING SITE FOR RESIDUE FMT A 1714
18BC9SOFTWARETYR A:371 , TYR B:371BINDING SITE FOR RESIDUE FMT A 1715
19CC1SOFTWAREPRO A:352 , GLN A:353 , PRO A:359 , PHE A:363 , HOH A:2791 , HOH A:2860 , ALA B:11BINDING SITE FOR RESIDUE FMT A 1716
20CC2SOFTWARETYR B:285 , THR B:286 , HOH B:2133BINDING SITE FOR RESIDUE FMT B 1717
21CC3SOFTWAREPHE A:247 , ALA A:251 , ASN A:302 , HOH A:2725BINDING SITE FOR RESIDUE FMT A 1718
22CC4SOFTWARELYS A:77 , GLY A:323 , SER A:396 , ALA A:397 , ARG A:398BINDING SITE FOR RESIDUE FMT A 1719
23CC5SOFTWARELYS B:58 , ARG B:101 , GLY B:102 , ARG B:151 , ASN B:156 , FMT B:1712 , HOH B:2050 , HOH B:2207BINDING SITE FOR RESIDUE FMT B 1720
24CC6SOFTWAREHOH A:2634 , ARG B:49 , ARG B:101 , HOH B:1801 , HOH B:1916 , HOH B:2050 , HOH B:2085 , HOH B:2177BINDING SITE FOR RESIDUE FMT B 1721
25CC7SOFTWAREASP A:194 , HIS A:218 , THR A:219 , HOH A:2928BINDING SITE FOR RESIDUE FMT A 1722
26CC8SOFTWAREVAL A:223 , LYS A:224 , HOH A:2688 , HOH A:2978BINDING SITE FOR RESIDUE FMT A 1723
27CC9SOFTWARELYS A:188 , HOH A:2688 , HOH A:2925BINDING SITE FOR RESIDUE FMT A 1724
28DC1SOFTWARELYS A:188 , LEU A:226 , HOH A:2925 , HOH A:2956BINDING SITE FOR RESIDUE FMT A 1725
29DC2SOFTWAREVAL B:223 , LYS B:224 , HOH B:1830BINDING SITE FOR RESIDUE FMT B 1726
30DC3SOFTWAREASP B:183 , HIS B:225 , GLU B:440BINDING SITE FOR RESIDUE FMT B 1727
31DC4SOFTWARELYS B:188 , LYS B:224 , HOH B:1830 , HOH B:2143BINDING SITE FOR RESIDUE FMT B 1728
32DC5SOFTWARESER B:182 , ASP B:183 , ARG B:184 , TYR B:432 , LEU B:436 , GLU B:440 , HOH B:1897 , HOH B:2000 , HOH B:2225BINDING SITE FOR RESIDUE FMT B 1729
33DC6SOFTWARETYR A:371 , FMT A:1735 , PRO B:51 , TYR B:345BINDING SITE FOR RESIDUE FMT A 1730
34DC7SOFTWARELEU B:336 , PHE B:337 , ASP B:341 , ARG B:344 , FMT B:1736BINDING SITE FOR RESIDUE FMT B 1731
35DC8SOFTWARELEU A:336 , PHE A:337 , ARG A:344 , FMT A:1733BINDING SITE FOR RESIDUE FMT A 1732
36DC9SOFTWAREALA A:318 , ARG A:344 , FMT A:1732 , HOH A:2787 , THR B:36 , LEU B:39 , GLU B:40 , HOH B:1800 , HOH B:2160BINDING SITE FOR RESIDUE FMT A 1733
37EC1SOFTWAREALA A:57 , LYS A:58 , GLY A:59 , ARG A:101 , TYR A:306 , GLU A:311 , FMT A:1710 , HOH A:2845BINDING SITE FOR RESIDUE FMT A 1734
38EC2SOFTWAREARG A:344 , FMT A:1730 , AZI A:2600 , HOH A:2727 , HOH A:2867 , ARG B:47 , TYR B:345BINDING SITE FOR RESIDUE FMT A 1735
39EC3SOFTWARETHR A:36 , LEU A:39 , GLU A:40 , ALA B:318 , ARG B:344 , FMT B:1731 , HOH B:1917 , HOH B:2011 , HOH B:2179BINDING SITE FOR RESIDUE FMT B 1736

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1QWM)

(-) Cis Peptide Bonds  (2, 2)

Asymmetric Unit
No.Residues
1Thr A:384 -Pro A:385
2Thr B:384 -Pro B:385

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1QWM)

(-) PROSITE Motifs  (3, 6)

Asymmetric Unit (3, 6)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CATALASE_3PS51402 catalase family profile.CATA_HELPY5-489
 		  2A:5-489
B:5-489
2CATALASE_2PS00438 Catalase proximal active site signature.CATA_HELPY45-61
 		  2A:45-61
B:45-61
3CATALASE_1PS00437 Catalase proximal heme-ligand signature.CATA_HELPY335-343
 		  2A:335-343
B:335-343
Biological Unit 1 (3, 12)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CATALASE_3PS51402 catalase family profile.CATA_HELPY5-489
 		  4A:5-489
B:5-489
2CATALASE_2PS00438 Catalase proximal active site signature.CATA_HELPY45-61
 		  4A:45-61
B:45-61
3CATALASE_1PS00437 Catalase proximal heme-ligand signature.CATA_HELPY335-343
 		  4A:335-343
B:335-343

(-) Exons   (0, 0)

(no "Exon" information available for 1QWM)

(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:490
 aligned with CATA_HELPY | P77872 from UniProtKB/Swiss-Prot  Length:505

    Alignment length:490
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490
           CATA_HELPY     1 MVNKDVKQTTAFGAPVWDDNNVITAGPRGPVLLQSTWFLEKLAAFDRERIPERVVHAKGSGAYGTFTVTKDITKYTKAKIFSKVGKKTECFFRFSTVAGERGSADAVRDPRGFAMKYYTEEGNWDLVGNNTPVFFIRDAIKFPDFIHTQKRDPQTNLPNHDMVWDFWSNVPESLYQVTWVMSDRGIPKSFRHMDGFGSHTFSLINAKGERFWVKFHFHTMQGVKHLTNEEAAEVRKYDPDSNQRDLFNAIARGDFPKWKLSIQVMPEEDAKKYRFHPFDVTKIWYLQDYPLMEVGIVELNKNPENYFAEVEQAAFSPANVVPGIGYSPDRMLQGRLFSYGDTHRYRLGVNYPQIPVNKPRCPFHSSSRDGYMQNGYYGSLQNYTPSSLPGYKEDKSARDPKFNLAHIEKEFEVWNWDYRADDSDYYTQPGDYYRSLPADEKERLHDTIGESLAHVTHKEIVDKQLEHFKKADPKYAEGVKKALEKHQKMM 490
               SCOP domains d1qwma_ A: Catalase I                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..................................hhhhhhhhhhhh............eeeeeeeeee.........hhhhh....eeeeeeeee................eeeeeeee..eeeeeeee........hhhhhhhhhhhhh........hhhhhhhhhhhh..hhhhhhhhhhhhhh..hhhhh.ee....eeee.....eeeeeeeeee.......hhhhhhhhhhhh.hhhhhhhhhhhhh....eeeeeeeeee.hhh.....................eeeeeeeeee...hhhhhh.............ee...hhhhhhhhhhhhhhhhhhhh.hhhhhhhhh...................................hhhhh....hhhhh.........hhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ----CATALASE_3  PDB: A:5-489 UniProt: 5-489                                                                                                                                                                                                                                                                                                                                                                                                                                                              - PROSITE (1)
                PROSITE (2) --------------------------------------------CATALASE_2       ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------CATALASE_--------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1qwm A   1 MVNKDVKQTTAFGAPVWDDNNVITAGPRGPVLLQSTWFLEKLAAFDRERIPERVVHAKGSGAYGTFTVTKDITKYTKAKIFSKVGKKTECFFRFSTVAGERGSADAVRDPRGFAMKYYTEEGNWDLVGNNTPVFFIRDAIKFPDFIHTQKRDPQTNLPNHDMVWDFWSNVPESLYQVTWVMSDRGIPKSFRHMDGFGSHTFSLINAKGERFWVKFHFHTMQGVKHLTNEEAAEIRKHDPDSNQRDLFDAIARGDYPKWKLSIQVMPEEDAKKYRFHPFDVTKIWYTQDYPLMEVGIVELNKNPENYFAEVEQAAFTPANVVPGIGYSPDRMLQGRLFSYGDTHRYRLGVNYPQIPVNKPRCPFHSSSRDGYMQNGYYGSLQNYTPSSLPGYKEDKSARDPKFNLAHIEKEFEVWNWDYRADDSDYYTQPGDYYRSLPADEKERLHDTIGESLAHVTHKEIVDKQLEHFKKADPKYAEGVKKALEKHQKMM 490
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490


Chain B from PDB  Type:PROTEIN  Length:490
 aligned with CATA_HELPY | P77872 from UniProtKB/Swiss-Prot  Length:505

    Alignment length:490
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490
           CATA_HELPY     1 MVNKDVKQTTAFGAPVWDDNNVITAGPRGPVLLQSTWFLEKLAAFDRERIPERVVHAKGSGAYGTFTVTKDITKYTKAKIFSKVGKKTECFFRFSTVAGERGSADAVRDPRGFAMKYYTEEGNWDLVGNNTPVFFIRDAIKFPDFIHTQKRDPQTNLPNHDMVWDFWSNVPESLYQVTWVMSDRGIPKSFRHMDGFGSHTFSLINAKGERFWVKFHFHTMQGVKHLTNEEAAEVRKYDPDSNQRDLFNAIARGDFPKWKLSIQVMPEEDAKKYRFHPFDVTKIWYLQDYPLMEVGIVELNKNPENYFAEVEQAAFSPANVVPGIGYSPDRMLQGRLFSYGDTHRYRLGVNYPQIPVNKPRCPFHSSSRDGYMQNGYYGSLQNYTPSSLPGYKEDKSARDPKFNLAHIEKEFEVWNWDYRADDSDYYTQPGDYYRSLPADEKERLHDTIGESLAHVTHKEIVDKQLEHFKKADPKYAEGVKKALEKHQKMM 490
               SCOP domains d1qwmb_ B: Catalase I                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) --------Catalase-1qwmB03 B:9-392                                                                                                                                                                                                                                                                                                                                                                        ------------------------Catalase-rel-1qwmB01 B:417-484                                      ------ Pfam domains (1)
           Pfam domains (2) --------Catalase-1qwmB04 B:9-392                                                                                                                                                                                                                                                                                                                                                                        ------------------------Catalase-rel-1qwmB02 B:417-484                                      ------ Pfam domains (2)
         Sec.struct. author ..................................hhhhhhhhhhhh............eeeeeeeeee.........hhhhh....eeeeeeeee................eeeeeeee..eeeeeeee........hhhhhhhhhhhhh........hhhhhhhhhhhh..hhhhhhhhhhhhhh..hhhhh.ee....eeee.....eeeeeeeeee.......hhhhhhhhhhhh.hhhhhhhhhhhhh....eeeeeeeeee.hhh.....................eeeeeeeeee...hhhhhh.............ee...hhhhhhhhhhhhhhhhhhhh.hhhhhhhhh...................................hhhhh....hhhhh.........hhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ----CATALASE_3  PDB: B:5-489 UniProt: 5-489                                                                                                                                                                                                                                                                                                                                                                                                                                                              - PROSITE (1)
                PROSITE (2) --------------------------------------------CATALASE_2       ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------CATALASE_--------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1qwm B   1 MVNKDVKQTTAFGAPVWDDNNVITAGPRGPVLLQSTWFLEKLAAFDRERIPERVVHAKGSGAYGTFTVTKDITKYTKAKIFSKVGKKTECFFRFSTVAGERGSADAVRDPRGFAMKYYTEEGNWDLVGNNTPVFFIRDAIKFPDFIHTQKRDPQTNLPNHDMVWDFWSNVPESLYQVTWVMSDRGIPKSFRHMDGFGSHTFSLINAKGERFWVKFHFHTMQGVKHLTNEEAAEIRKHDPDSNQRDLFDAIARGDYPKWKLSIQVMPEEDAKKYRFHPFDVTKIWYTQDYPLMEVGIVELNKNPENYFAEVEQAAFTPANVVPGIGYSPDRMLQGRLFSYGDTHRYRLGVNYPQIPVNKPRCPFHSSSRDGYMQNGYYGSLQNYTPSSLPGYKEDKSARDPKFNLAHIEKEFEVWNWDYRADDSDYYTQPGDYYRSLPADEKERLHDTIGESLAHVTHKEIVDKQLEHFKKADPKYAEGVKKALEKHQKMM 490
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 2)

Asymmetric Unit
(-)
Class: Multi-domain proteins (alpha and beta) (2421)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1QWM)

(-) Pfam Domains  (2, 4)

Asymmetric Unit
(-)
Clan: no clan defined [family: Catalase-rel] (18)
(-)
Clan: no clan defined [family: Catalase] (19)

(-) Gene Ontology  (11, 11)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (CATA_HELPY | P77872)
molecular function
    GO:0004096    catalase activity    Catalysis of the reaction: 2 hydrogen peroxide = O2 + 2 H2O.
    GO:0020037    heme binding    Interacting selectively and non-covalently with heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
    GO:0004601    peroxidase activity    Catalysis of the reaction: donor + hydrogen peroxide = oxidized donor + 2 H2O.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
biological process
    GO:0098869    cellular oxidant detoxification    Any process carried out at the cellular level that reduces or removes the toxicity superoxide radicals or hydrogen peroxide.
    GO:0042744    hydrogen peroxide catabolic process    The chemical reactions and pathways resulting in the breakdown of hydrogen peroxide (H2O2).
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0006979    response to oxidative stress    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of oxidative stress, a state often resulting from exposure to high levels of reactive oxygen species, e.g. superoxide anions, hydrogen peroxide (H2O2), and hydroxyl radicals.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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        CATA_HELPY | P77872: 1qwl 2a9e 2iqf

(-) Related Entries Specified in the PDB File

1qwl STRUCTURE OF HELICOBACTER PYLORI CATALASE