1ITK - JenaLib

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Asymmetric Unit (Jmol Viewer)

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Biological Unit 1 (Jmol Viewer)

Biol. Unit 1 - sites (Jmol Viewer)

Biological Unit 2 (Jmol Viewer)

Title :   CRYSTAL STRUCTURE OF CATALASE-PEROXIDASE FROM HALOARCULA MARISMORTUI

Authors :   Y. Yamada, T. Fujiwara, T. Sato, N. Igarashi, N. Tanaka

Date :   18 Jan 02 (Deposition) - 28 Aug 02 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.00

Chains :   Asym. Unit : A,B
Biol. Unit 1: A,B  (1x)
Biol. Unit 2: A,B  (2x)

Keywords :   Heme Protein, Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   Y. Yamada, T. Fujiwara, T. Sato, N. Igarashi, N. Tanaka
The 2. 0 A Crystal Structure Of Catalase-Peroxidase From Haloarcula Marismortui.
Nat. Struct. Biol. V. 9 691 2002
PubMed-ID: 12172540 | Reference-DOI: 10.1038/NSB834
(for further references see the PDB file header)

Molecule 1 - CATALASE-PEROXIDASE
	Chains	:	A, B
	EC Number	:	1.11.1.6
	Organism Scientific	:	HALOARCULA MARISMORTUI
	Organism Taxid	:	2238

		1	2
Asymmetric Unit	:	A	B
Biological Unit 1 (1x)	:	A	B
Biological Unit 2 (2x)	:	A	B

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (4, 30)

No.	Name	Count	Type	Full Name
1	CL	16	Ligand/Ion	CHLORIDE ION
2	HEM	2	Ligand/Ion	PROTOPORPHYRIN IX CONTAINING FE
3	SO4	6	Ligand/Ion	SULFATE ION
4	UNX	6	Ligand/Ion	UNKNOWN ATOM OR ION

Biological Unit 1 (3, 14)

No.	Name	Count	Type	Full Name
1	CL	-1	Ligand/Ion	CHLORIDE ION
2	HEM	2	Ligand/Ion	PROTOPORPHYRIN IX CONTAINING FE
3	SO4	6	Ligand/Ion	SULFATE ION
4	UNX	6	Ligand/Ion	UNKNOWN ATOM OR ION

Biological Unit 2 (3, 28)

No.	Name	Count	Type	Full Name
1	CL	-1	Ligand/Ion	CHLORIDE ION
2	HEM	4	Ligand/Ion	PROTOPORPHYRIN IX CONTAINING FE
3	SO4	12	Ligand/Ion	SULFATE ION
4	UNX	12	Ligand/Ion	UNKNOWN ATOM OR ION

Asymmetric Unit (30, 30)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	GLN A:239 , ARG A:243 , HOH A:2349	BINDING SITE FOR RESIDUE SO4 A 732
02	AC2	SOFTWARE	PRO A:282 , ILE A:283 , ARG B:684	BINDING SITE FOR RESIDUE SO4 A 733
03	AC3	SOFTWARE	LYS A:580 , ILE A:592 , THR A:593 , ARG A:594	BINDING SITE FOR RESIDUE SO4 A 734
04	AC4	SOFTWARE	ARG A:684 , HOH A:2724 , PRO B:282 , ILE B:283 , HOH B:2473	BINDING SITE FOR RESIDUE SO4 A 735
05	AC5	SOFTWARE	GLN B:239 , ARG B:243 , HOH B:2372	BINDING SITE FOR RESIDUE SO4 B 732
06	AC6	SOFTWARE	LYS B:580 , ILE B:592 , THR B:593 , ARG B:594 , HOH B:2192	BINDING SITE FOR RESIDUE SO4 B 733
07	AC7	SOFTWARE	SER A:212 , ASN A:220 , PRO A:224 , ASN A:236	BINDING SITE FOR RESIDUE CL A 2001
08	AC8	SOFTWARE	SER A:612 , GLY B:44	BINDING SITE FOR RESIDUE CL A 2002
09	AC9	SOFTWARE	GLY A:44 , SER B:612	BINDING SITE FOR RESIDUE CL B 2003
10	BC1	SOFTWARE	VAL A:581 , ASP A:582 , GLY A:583 , ASN A:603 , HOH A:2155	BINDING SITE FOR RESIDUE CL A 2004
11	BC2	SOFTWARE	TRP A:331 , LYS A:376 , ARG A:377	BINDING SITE FOR RESIDUE CL A 2005
12	BC3	SOFTWARE	PRO A:566 , GLU A:567 , THR A:569 , ALA A:571 , PRO A:572 , HOH A:2086 , HOH A:2319	BINDING SITE FOR RESIDUE CL A 2006
13	BC4	SOFTWARE	TRP A:187 , LYS B:21	BINDING SITE FOR RESIDUE CL A 2007
14	BC5	SOFTWARE	LYS A:710 , GLU B:47 , GLN B:145	BINDING SITE FOR RESIDUE CL B 2008
15	BC6	SOFTWARE	GLU A:47 , GLN A:145 , HOH A:2591 , LYS B:710	BINDING SITE FOR RESIDUE CL A 2009
16	BC7	SOFTWARE	LYS A:21 , TRP B:187	BINDING SITE FOR RESIDUE CL A 2010
17	BC8	SOFTWARE	GLU A:491 , HOH A:2129	BINDING SITE FOR RESIDUE CL A 2011
18	BC9	SOFTWARE	GLY A:481 , ARG A:487 , PHE A:574 , HOH A:2057 , HOH A:2062 , HOH A:2169	BINDING SITE FOR RESIDUE CL A 2012
19	CC1	SOFTWARE	HOH A:2215	BINDING SITE FOR RESIDUE CL A 2013
20	CC2	SOFTWARE	ASN A:220 , HOH A:2044	BINDING SITE FOR RESIDUE CL A 2014
21	CC3	SOFTWARE	GLY B:108	BINDING SITE FOR RESIDUE CL B 2015
22	CC4	SOFTWARE	VAL B:581 , ASP B:582 , GLY B:583 , ASN B:603 , HOH B:2256	BINDING SITE FOR RESIDUE CL B 2016
23	CC5	SOFTWARE	TRP A:429 , HOH A:2095 , HOH A:2632	BINDING SITE FOR RESIDUE UNX A 2017
24	CC6	SOFTWARE	SER B:212 , ASN B:220 , PRO B:224 , ASN B:236	BINDING SITE FOR RESIDUE UNX B 2018
25	CC7	SOFTWARE	GLY B:481 , ARG B:487 , PHE B:574 , HOH B:2046 , HOH B:2160 , HOH B:2165	BINDING SITE FOR RESIDUE UNX B 2019
26	CC8	SOFTWARE	TRP B:331 , LYS B:376 , ARG B:377	BINDING SITE FOR RESIDUE UNX B 2020
27	CC9	SOFTWARE	VAL B:213 , ASN B:220 , HOH B:2148 , HOH B:2301	BINDING SITE FOR RESIDUE UNX B 2021
28	DC1	SOFTWARE	MET B:427 , TRP B:429 , HOH B:2227	BINDING SITE FOR RESIDUE UNX B 2022
29	DC2	SOFTWARE	PRO A:88 , LEU A:89 , ARG A:92 , TRP A:95 , PRO A:221 , LEU A:254 , ILE A:255 , GLY A:258 , HIS A:259 , PHE A:261 , GLY A:262 , LYS A:263 , VAL A:264 , HIS A:265 , THR A:304 , SER A:305 , TRP A:311 , THR A:371 , TRP A:403 , HOH A:2019 , HOH A:2071 , HOH A:2102 , HOH A:2645	BINDING SITE FOR RESIDUE HEM A 800
30	DC3	SOFTWARE	PRO B:88 , TRP B:95 , PRO B:221 , LEU B:254 , ILE B:255 , GLY B:258 , HIS B:259 , GLY B:262 , LYS B:263 , VAL B:264 , HIS B:265 , THR B:304 , SER B:305 , TRP B:311 , THR B:371 , PHE B:399 , TRP B:403 , HOH B:2042 , HOH B:2117 , HOH B:2210	BINDING SITE FOR RESIDUE HEM B 800

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

Asymmetric Unit

No.	Residues
1	Ala A:118	-	Pro A:119
2	Glu A:491	-	Pro A:492
3	Ala B:118	-	Pro B:119
4	Glu B:491	-	Pro B:492

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

Asymmetric Unit (2, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	PEROXIDASE_2	PS00436	Peroxidases active site signature.	KATG2_HALMA	87-98	2	A:87-98 B:87-98
2	PEROXIDASE_1	PS00435	Peroxidases proximal heme-ligand signature.	KATG2_HALMA	251-261	2	A:251-261 B:251-261

Biological Unit 1 (2, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	PEROXIDASE_2	PS00436	Peroxidases active site signature.	KATG2_HALMA	87-98	2	A:87-98 B:87-98
2	PEROXIDASE_1	PS00435	Peroxidases proximal heme-ligand signature.	KATG2_HALMA	251-261	2	A:251-261 B:251-261

Biological Unit 2 (2, 8)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	PEROXIDASE_2	PS00436	Peroxidases active site signature.	KATG2_HALMA	87-98	4	A:87-98 B:87-98
2	PEROXIDASE_1	PS00435	Peroxidases proximal heme-ligand signature.	KATG2_HALMA	251-261	4	A:251-261 B:251-261

(no "Exon" information available for 1ITK)

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:707
 aligned with KATG2_HALMA | O59651 from UniProtKB/Swiss-Prot  Length:731

    Alignment length:714
                                    27        37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287       297       307       317       327       337       347       357       367       377       387       397       407       417       427       437       447       457       467       477       487       497       507       517       527       537       547       557       567       577       587       597       607       617       627       637       647       657       667       677       687       697       707       717       727    
          KATG2_HALMA    18 KRPKSNQDWWPSKLNLEILDQNARDVGPVEDDFDYAEEFQKLDLEAVKSDLEELMTSSQDWWPADYGHYGPLFIRMAWHSAGTYRTADGRGGAAGGRQRFAPINSWPDNANLDKARRLLLPIKQKYGQKISWADLMILAGNVAIESMGFKTFGYAGGREDAFEEDKAVNWGPEDEFETQERFDEPGEIQEGLGASVMGLIYVNPEGPDGNPDPEASAKNIRQTFDRMAMNDKETAALIAGGHTFGKVHGADDPEENLGPEPEAAPIEQQGLGWQNKNGNSKGGEMITSGIEGPWTQSPTEWDMGYINNLLDYEWEPEKGPGGAWQWAPKSEELKNSVPDAHDPDEKQTPMMLTTDIALKRDPDYREVMETFQENPMEFGMNFAKAWYKLTHRDMGPPERFLGPEVPDEEMIWQDPLPDADYDLIGDEEIAELKEEILDSDLSVSQLVKTAWASASTYRDSDKRGGANGARLRLEPQKNWEVNEPEQLETVLGTLENIQTEFNDSRSDGTQVSLADLIVLGGNAAVEQAAANAGYDVEIPFEPGRVDAGPEHTDAPSFDALKPKVDGVRNYIQDDITRPAEEVLVDNADLLNLTASELTALIGGMRSIGANYQDTDLGVFTDEPETLTNDFFVNLLDMGTEWEPAADSEHRYKGLDRDTGEVKWEATRIDLIFGSNDRLRAISEVYGSADAEKKLVHDFVDTWSKVMKLDRFDLE 731
               SCOP domains d1itka1 A:18-423 Catalase-peroxidase KatG                                                                                                                                                                                                                                                                                                                                                                             d1itka2 A:424-731 Catalase-peroxidase KatG                                                                                                                                                                                                                                                                           SCOP domains
               CATH domains -----------------------------------1itkA01 A:53-182,A:403-414  [code=1.10.520.10, no name defined]                                                                   --------------------------------------------------1itkA02 A:233-266,A:303-402       ------------------------------------1itkA02 A:233-266,A:303-402 Peroxidase, domain 2                                                    1itkA01     ---------------------1itkA03 A:436-580,A:710-731  [code=1.10.520.10, no name defined]                                                                                 1itkA04 A:581-709 Peroxidase, domain 2                                                                                           1itkA03                CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .....hhhh.......hhhh..............hhhhhhh..hhhhhhhhhhhh..............hhhhhhhhhhhh..............................hhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhh..................................................................hhhhhhhhhhhhh.....hhhhhhhhhhh...........hhhh.....................-------...................hhhhhhhh..eeeee.....eeeee........................hhhhhhhh.hhhhhhhhhhhh.hhhhhhhhhhhhhhhhh..................................hhhhhhhhhhhhh....hhhhhhhhhhhh.............................hhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhh......................hhhh......ee....ee.......hhhhhhhhhhh....hhhhhhhhhhhhhh.....................hhhhhhh...eeeee......eeeeee.....eeeeeehhhhhhh..hhhhhhhhhh.....hhhhhhhhhhhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------PEROXIDASE_2--------------------------------------------------------------------------------------------------------------------------------------------------------PEROXIDASE_-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1itk A  18 KRPKSNQDWWPSKLNLEILDQNARDVGPVEDDFDYAEEFQKLDLEAVKSDLEELMTSSQDWWPADYGHYGPLFIRMAWHSAGTYRTADGRGGAAGGRQRFAPINSWPDNANLDKARRLLLPIKQKYGQKISWADLMILAGNVAIESMGFKTFGYAGGREDAFEEDKAVNWGPEDEFETQERFDEPGEIQEGLGASVMGLIYVNPEGPDGNPDPEASAKNIRQTFDRMAMNDKETAALIAGGHTFGKVHGADDPEENLGPEPEAAPIEQQGLGWQNKN-------MITSGIEGPWTQSPTEWDMGYINNLLDYEWEPEKGPGGAWQWAPKSEELKNSVPDAHDPDEKQTPMMLTTDIALKRDPDYREVMETFQENPMEFGMNFAKAWYKLTHRDMGPPERFLGPEVPDEEMIWQDPLPDADYDLIGDEEIAELKEEILDSDLSVSQLVKTAWASASTYRDSDKRGGANGARLRLEPQKNWEVNEPEQLETVLGTLENIQTEFNDSRSDGTQVSLADLIVLGGNAAVEQAAANAGYDVEIPFEPGRVDAGPEHTDAPSFDALKPKVDGVRNYIQDDITRPAEEVLVDNADLLNLTASELTALIGGMRSIGANYQDTDLGVFTDEPETLTNDFFVNLLDMGTEWEPAADSEHRYKGLDRDTGEVKWEATRIDLIFGSNDRLRAISEVYGSADAEKKLVHDFVDTWSKVMKLDRFDLE 731
                                    27        37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287      |  -    |  307       317       327       337       347       357       367       377       387       397       407       417       427       437       447       457       467       477       487       497       507       517       527       537       547       557       567       577       587       597       607       617       627       637       647       657       667       677       687       697       707       717       727    
                                                                                                                                                                                                                                                                                                              294     302

Chain B from PDB  Type:PROTEIN  Length:714
 aligned with KATG2_HALMA | O59651 from UniProtKB/Swiss-Prot  Length:731

    Alignment length:714
                                    27        37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287       297       307       317       327       337       347       357       367       377       387       397       407       417       427       437       447       457       467       477       487       497       507       517       527       537       547       557       567       577       587       597       607       617       627       637       647       657       667       677       687       697       707       717       727    
          KATG2_HALMA    18 KRPKSNQDWWPSKLNLEILDQNARDVGPVEDDFDYAEEFQKLDLEAVKSDLEELMTSSQDWWPADYGHYGPLFIRMAWHSAGTYRTADGRGGAAGGRQRFAPINSWPDNANLDKARRLLLPIKQKYGQKISWADLMILAGNVAIESMGFKTFGYAGGREDAFEEDKAVNWGPEDEFETQERFDEPGEIQEGLGASVMGLIYVNPEGPDGNPDPEASAKNIRQTFDRMAMNDKETAALIAGGHTFGKVHGADDPEENLGPEPEAAPIEQQGLGWQNKNGNSKGGEMITSGIEGPWTQSPTEWDMGYINNLLDYEWEPEKGPGGAWQWAPKSEELKNSVPDAHDPDEKQTPMMLTTDIALKRDPDYREVMETFQENPMEFGMNFAKAWYKLTHRDMGPPERFLGPEVPDEEMIWQDPLPDADYDLIGDEEIAELKEEILDSDLSVSQLVKTAWASASTYRDSDKRGGANGARLRLEPQKNWEVNEPEQLETVLGTLENIQTEFNDSRSDGTQVSLADLIVLGGNAAVEQAAANAGYDVEIPFEPGRVDAGPEHTDAPSFDALKPKVDGVRNYIQDDITRPAEEVLVDNADLLNLTASELTALIGGMRSIGANYQDTDLGVFTDEPETLTNDFFVNLLDMGTEWEPAADSEHRYKGLDRDTGEVKWEATRIDLIFGSNDRLRAISEVYGSADAEKKLVHDFVDTWSKVMKLDRFDLE 731
               SCOP domains d1itkb1 B:18-423 Catalase-peroxidase KatG                                                                                                                                                                                                                                                                                                                                                                             d1itkb2 B:424-731 Catalase-peroxidase KatG                                                                                                                                                                                                                                                                           SCOP domains
               CATH domains -----------------------------------1itkB01 B:53-182,B:403-414  [code=1.10.520.10, no name defined]                                                                   --------------------------------------------------1itkB02 B:233-266,B:303-402       ------------------------------------1itkB02 B:233-266,B:303-402 Peroxidase, domain 2                                                    1itkB01     ---------------------1itkB03 B:436-580,B:710-731  [code=1.10.520.10, no name defined]                                                                                 1itkB04 B:581-709 Peroxidase, domain 2                                                                                           1itkB03                CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .....hhhh.......hhhh..............hhhhhhh..hhhhhhhhhhhh..............hhhhhhhhhhhh..............................hhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhh..................................................................hhhhhhhhhhhhh.....hhhhhhhhhhh...........hhhh...............................................hhhhhhhh..eeeee.....eeeee........................hhhhhhhh.hhhhhhhhhhhh.hhhhhhhhhhhhhhhhh..................................hhhhhhhhhhhhh....hhhhhhhhhhhh.............................hhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhh......................hhhh......ee....ee.......hhhhhhhhhhh....hhhhhhhhhhhhhh.....................hhhhhhh...eeeee.......eeeee.....eeeee.hhhhhhh..hhhhhhhhhh.....hhhhhhhhhhhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------PEROXIDASE_2--------------------------------------------------------------------------------------------------------------------------------------------------------PEROXIDASE_-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1itk B  18 KRPKSNQDWWPSKLNLEILDQNARDVGPVEDDFDYAEEFQKLDLEAVKSDLEELMTSSQDWWPADYGHYGPLFIRMAWHSAGTYRTADGRGGAAGGRQRFAPINSWPDNANLDKARRLLLPIKQKYGQKISWADLMILAGNVAIESMGFKTFGYAGGREDAFEEDKAVNWGPEDEFETQERFDEPGEIQEGLGASVMGLIYVNPEGPDGNPDPEASAKNIRQTFDRMAMNDKETAALIAGGHTFGKVHGADDPEENLGPEPEAAPIEQQGLGWQNKNGNSKGGEMITSGIEGPWTQSPTEWDMGYINNLLDYEWEPEKGPGGAWQWAPKSEELKNSVPDAHDPDEKQTPMMLTTDIALKRDPDYREVMETFQENPMEFGMNFAKAWYKLTHRDMGPPERFLGPEVPDEEMIWQDPLPDADYDLIGDEEIAELKEEILDSDLSVSQLVKTAWASASTYRDSDKRGGANGARLRLEPQKNWEVNEPEQLETVLGTLENIQTEFNDSRSDGTQVSLADLIVLGGNAAVEQAAANAGYDVEIPFEPGRVDAGPEHTDAPSFDALKPKVDGVRNYIQDDITRPAEEVLVDNADLLNLTASELTALIGGMRSIGANYQDTDLGVFTDEPETLTNDFFVNLLDMGTEWEPAADSEHRYKGLDRDTGEVKWEATRIDLIFGSNDRLRAISEVYGSADAEKKLVHDFVDTWSKVMKLDRFDLE 731
                                    27        37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287       297       307       317       327       337       347       357       367       377       387       397       407       417       427       437       447       457       467       477       487       497       507       517       527       537       547       557       567       577       587       597       607       617       627       637       647       657       667       677       687       697       707       717       727

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 '\|'

Asymmetric Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: All alpha proteins (14657)

Fold: Heme-dependent peroxidases (402)

Superfamily: Heme-dependent peroxidases (402)

Family: Catalase-peroxidase KatG (26)

Protein domain: Catalase-peroxidase KatG (23)

Haloarcula marismortui [TaxId: 2238] (1)

1a	d1itka1	A:18-423
1b	d1itka2	A:424-731
1c	d1itkb1	B:18-423
1d	d1itkb2	B:424-731

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Alpha (13335)

Architecture: Orthogonal Bundle (10391)

Topology: Peroxidase; domain 1 (244)

Homologous Superfamily: [code=1.10.520.10, no name defined] (241)

Haloarcula marismortui. Organism_taxid: 2238 (1)

1a	1itkA03	A:436-580,A:710-731
1b	1itkB03	B:436-580,B:710-731
1c	1itkA01	A:53-182,A:403-414
1d	1itkB01	B:53-182,B:403-414

Topology: Peroxidase; domain 2 (241)

Homologous Superfamily: Peroxidase, domain 2 (241)

Haloarcula marismortui. Organism_taxid: 2238 (1)

2a	1itkA04	A:581-709
2b	1itkB04	B:581-709
2c	1itkA02	A:233-266,A:303-402
2d	1itkB02	B:233-266,B:303-402

(no "Pfam Domain" information available for 1ITK)

Asymmetric Unit(hide GO term definitions)

Chain A,B (KATG2_HALMA | O59651)

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.
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.

Asymmetric Unit
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		BC8	[ RasMol ]	+environment [ RasMol ]
		BC9	[ RasMol ]	+environment [ RasMol ]
		CC1	[ RasMol ]	+environment [ RasMol ]
		CC2	[ RasMol ]	+environment [ RasMol ]
		CC3	[ RasMol ]	+environment [ RasMol ]
		CC4	[ RasMol ]	+environment [ RasMol ]
		CC5	[ RasMol ]	+environment [ RasMol ]
		CC6	[ RasMol ]	+environment [ RasMol ]
		CC7	[ RasMol ]	+environment [ RasMol ]
		CC8	[ RasMol ]	+environment [ RasMol ]
		CC9	[ RasMol ]	+environment [ RasMol ]
		DC1	[ RasMol ]	+environment [ RasMol ]
		DC2	[ RasMol ]	+environment [ RasMol ]
		DC3	[ RasMol ]	+environment [ RasMol ]

	Cis Peptide Bonds
		Ala A:118 - Pro A:119	[ RasMol ]
		Ala B:118 - Pro B:119	[ RasMol ]
		Glu A:491 - Pro A:492	[ RasMol ]
		Glu B:491 - Pro B:492	[ RasMol ]

Biological Units
	Complete Structure
		Biological Unit 1	[ Jena3D ]
		Biological Unit 2	[ Jena3D ]

Jmol
	protein: cartoon or spacefill or dots and stick; nucleic acid: cartoon and stick; ligands: spacefill; active site: stick [ Asym. Unit PNG format \| Asym. Unit - sites PNG format \| Biol. Unit 1 PNG format \| Biol. Unit 1 - sites PNG format \| Biol. Unit 2 PNG format ](automatic orientation, automatically generated)
Molscript
	protein, nucleic acid: cartoon; ligands: spacefill; active site: ball and stick [ mono PDF format \| stereo PDF format ](default orientation, automatically generated)

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	KATG2_HALMA \| O59651
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	KATG2_HALMA \| O59651	:	3uw8 3vlh 3vli 3vlj 3vlk 3vll 3vlm

(no "Related Entries Specified in the PDB File" available for 1ITK)

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (4, 30)

Sites (30, 30)

SS Bonds (0, 0)

Cis Peptide Bonds (4, 4)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (2, 4)

Exons (0, 0)

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SCOP Domains (1, 4)

CATH Domains (2, 8)

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Gene Ontology (9, 9)

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