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(-) Description

Title :  STRUCTURAL AND BIOCHEMICAL ANALYSIS OF THE LINK BETWEEN ENZYMATIC ACTIVITY AND OLIGOMERIZATION IN AHPC, A BACTERIAL PEROXIREDOXIN.
 
Authors :  D. Parsonage, D. S. Youngblood, G. N. Sarma, Z. A. Wood, P. A. Karplus, L.
Date :  28 Dec 04  (Deposition) - 16 Aug 05  (Release) - 09 May 12  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.30
Chains :  Asym. Unit :  A,B,C,D,E
Biol. Unit 1:  A,B,C,D,E  (2x)
Keywords :  Ahpc, Peroxiredoxin, Peroxidase, Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  D. Parsonage, D. S. Youngblood, G. N. Sarma, Z. A. Wood, P. A. Karplus, L. B. Poole
Analysis Of The Link Between Enzymatic Activity And Oligomeric State In Ahpc, A Bacterial Peroxiredoxin.
Biochemistry V. 44 10583 2005
PubMed-ID: 16060667  |  Reference-DOI: 10.1021/BI050448I

(-) Compounds

Molecule 1 - ALKYL HYDROPEROXIDE REDUCTASE SUBUNIT C
    ChainsA, B, C, D, E
    EC Number1.11.1.15
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    GeneAHPC
    MutationYES
    Organism ScientificSALMONELLA TYPHIMURIUM
    Organism Taxid602
    SynonymALKYL HYDROPEROXIDE REDUCTASE PROTEIN C22

 Structural Features

(-) Chains, Units

  12345
Asymmetric Unit ABCDE
Biological Unit 1 (2x)ABCDE

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 8)

Asymmetric Unit (1, 8)
No.NameCountTypeFull Name
1SO48Ligand/IonSULFATE ION
Biological Unit 1 (1, 16)
No.NameCountTypeFull Name
1SO416Ligand/IonSULFATE ION

(-) Sites  (8, 8)

Asymmetric Unit (8, 8)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREPRO B:47 , SER B:85 , GLU B:86 , THR B:87BINDING SITE FOR RESIDUE SO4 B 812
2AC2SOFTWAREPRO B:47 , LEU B:50 , ARG B:119 , HOH B:2064BINDING SITE FOR RESIDUE SO4 B 802
3AC3SOFTWARESER D:85 , GLU D:86 , THR D:87BINDING SITE FOR RESIDUE SO4 D 814
4AC4SOFTWAREPRO C:47 , SER C:85 , GLU C:86 , THR C:87BINDING SITE FOR RESIDUE SO4 C 813
5AC5SOFTWARETYR A:38 , CYS A:46 , GLU A:49 , LEU A:50 , ARG A:119 , HOH A:1064BINDING SITE FOR RESIDUE SO4 A 801
6AC6SOFTWARETYR C:38 , VAL C:45 , PRO C:47 , GLU C:49 , ARG C:119 , HOH C:3064BINDING SITE FOR RESIDUE SO4 C 803
7AC7SOFTWARECYS D:46 , PRO D:47 , GLU D:49 , LEU D:50 , ARG D:119 , ARG D:142BINDING SITE FOR RESIDUE SO4 D 804
8AC8SOFTWARETYR E:38 , VAL E:45 , PRO E:47 , GLU E:49 , LEU E:50 , ARG E:119BINDING SITE FOR RESIDUE SO4 E 805

(-) SS Bonds  (3, 3)

Asymmetric Unit
No.Residues
1A:46 -B:165
2A:165 -B:46
3C:46 -D:165

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1YEX)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 5)

Asymmetric Unit (1, 5)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1THIOREDOXIN_2PS51352 Thioredoxin domain profile.AHPC_SALTY2-157
 
 
 
 
  5A:1-156
B:1-156
C:1-156
D:1-156
E:1-156
Biological Unit 1 (1, 10)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1THIOREDOXIN_2PS51352 Thioredoxin domain profile.AHPC_SALTY2-157
 
 
 
 
  10A:1-156
B:1-156
C:1-156
D:1-156
E:1-156

(-) Exons   (0, 0)

(no "Exon" information available for 1YEX)

(-) 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:167
 aligned with AHPC_SALTY | P0A251 from UniProtKB/Swiss-Prot  Length:187

    Alignment length:167
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       
           AHPC_SALTY     2 SLINTKIKPFKNQAFKNGEFIEVTEKDTEGRWSVFFFYPADFTFVCPTELGDVADHYEELQKLGVDVYSVSTDTHFTHKAWHSSSETIAKIKYAMIGDPTGALTRNFDNMREDEGLADRATFVVDPQGIIQAIEVTAEGIGRDASDLLRKIKAAQYVAAHPGEVCPA 168
               SCOP domains d1yexa1 A:1-166 Alkyl hydroperoxide reductase AhpC                                                                                                                    - SCOP domains
               CATH domains 1yexA00 A:1-167 Glutaredoxin                                                                                                                                            CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..........eeeeee..eeeeee.hhh...eeeeee.........hhhhhhhhhhhhhhhhh.eeeeeee..hhhhhhhhhh.hhhhhh...eeee...hhhhhhh...........eeeeee.....eeeeeee......hhhhhhhhhhhhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE THIOREDOXIN_2  PDB: A:1-156 UniProt: 2-157                                                                                                                  ----------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1yex A   1 SLINTKIKPFKNQAFKNGEFIEVTEKDTEGRWSVFFFYPADFTFVCPTELGDVADHYEELQKLGVDVYSVSTDTHFDHKAWHSSSETIAKIKYAMIGDPTGALTRNFDNMREDEGLADRATFVVDPQGIIQAIEVTAEGIGRDASDLLRKIKAAQYVAAHPGEVCPA 167
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       

Chain B from PDB  Type:PROTEIN  Length:165
 aligned with AHPC_SALTY | P0A251 from UniProtKB/Swiss-Prot  Length:187

    Alignment length:165
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161     
           AHPC_SALTY     2 SLINTKIKPFKNQAFKNGEFIEVTEKDTEGRWSVFFFYPADFTFVCPTELGDVADHYEELQKLGVDVYSVSTDTHFTHKAWHSSSETIAKIKYAMIGDPTGALTRNFDNMREDEGLADRATFVVDPQGIIQAIEVTAEGIGRDASDLLRKIKAAQYVAAHPGEVC 166
               SCOP domains d1yexb_ B: Alkyl hydroperoxide reductase AhpC                                                                                                                         SCOP domains
               CATH domains 1yexB00 B:1-165 Glutaredoxin                                                                                                                                          CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..........eeeeee..eeeeee.hhhh..eeeeee.........hhhhhhhhhhhhhhhhh.eeeeeee..hhhhhhhhhh.hhhhhh...eeee...hhhhhhh...........eeeeee.....eeeeeee......hhhhhhhhhhhhhhhhhh..... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE THIOREDOXIN_2  PDB: B:1-156 UniProt: 2-157                                                                                                                  --------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1yex B   1 SLINTKIKPFKNQAFKNGEFIEVTEKDTEGRWSVFFFYPADFTFVCPTELGDVADHYEELQKLGVDVYSVSTDTHFDHKAWHSSSETIAKIKYAMIGDPTGALTRNFDNMREDEGLADRATFVVDPQGIIQAIEVTAEGIGRDASDLLRKIKAAQYVAAHPGEVC 165
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160     

Chain C from PDB  Type:PROTEIN  Length:163
 aligned with AHPC_SALTY | P0A251 from UniProtKB/Swiss-Prot  Length:187

    Alignment length:163
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161   
           AHPC_SALTY     2 SLINTKIKPFKNQAFKNGEFIEVTEKDTEGRWSVFFFYPADFTFVCPTELGDVADHYEELQKLGVDVYSVSTDTHFTHKAWHSSSETIAKIKYAMIGDPTGALTRNFDNMREDEGLADRATFVVDPQGIIQAIEVTAEGIGRDASDLLRKIKAAQYVAAHPGE 164
               SCOP domains d1yexc_ C: Alkyl hydroperoxide reductase AhpC                                                                                                                       SCOP domains
               CATH domains 1yexC00 C:1-163 Glutaredoxin                                                                                                                                        CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..........eeeeee..eeeeee.hhh...eeeeee.........hhhhhhhhhhhhhhhhh.eeeeeee..hhhhhhhhhhhh........eeee...hhhhhhh...........eeeeee.....eeeeeee......hhhhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE THIOREDOXIN_2  PDB: C:1-156 UniProt: 2-157                                                                                                                  ------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1yex C   1 SLINTKIKPFKNQAFKNGEFIEVTEKDTEGRWSVFFFYPADFTFVCPTELGDVADHYEELQKLGVDVYSVSTDTHFDHKAWHSSSETIAKIKYAMIGDPTGALTRNFDNMREDEGLADRATFVVDPQGIIQAIEVTAEGIGRDASDLLRKIKAAQYVAAHPGE 163
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160   

Chain D from PDB  Type:PROTEIN  Length:166
 aligned with AHPC_SALTY | P0A251 from UniProtKB/Swiss-Prot  Length:187

    Alignment length:166
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161      
           AHPC_SALTY     2 SLINTKIKPFKNQAFKNGEFIEVTEKDTEGRWSVFFFYPADFTFVCPTELGDVADHYEELQKLGVDVYSVSTDTHFTHKAWHSSSETIAKIKYAMIGDPTGALTRNFDNMREDEGLADRATFVVDPQGIIQAIEVTAEGIGRDASDLLRKIKAAQYVAAHPGEVCP 167
               SCOP domains d1yexd_ D: Alkyl hydroperoxide reductase AhpC                                                                                                                          SCOP domains
               CATH domains 1yexD00 D:1-166 Glutaredoxin                                                                                                                                           CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..........eeeeee..eeeeeehhhhh..eeeeee.........hhhhhhhhhhhhhhhhh.eeeeeee..hhhhhhhhhhhhhhhhh...eeee...hhhhhhh...........eeeeee.....eeeeeee......hhhhhhhhhhhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE THIOREDOXIN_2  PDB: D:1-156 UniProt: 2-157                                                                                                                  ---------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1yex D   1 SLINTKIKPFKNQAFKNGEFIEVTEKDTEGRWSVFFFYPADFTFVCPTELGDVADHYEELQKLGVDVYSVSTDTHFDHKAWHSSSETIAKIKYAMIGDPTGALTRNFDNMREDEGLADRATFVVDPQGIIQAIEVTAEGIGRDASDLLRKIKAAQYVAAHPGEVCP 166
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160      

Chain E from PDB  Type:PROTEIN  Length:165
 aligned with AHPC_SALTY | P0A251 from UniProtKB/Swiss-Prot  Length:187

    Alignment length:165
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161     
           AHPC_SALTY     2 SLINTKIKPFKNQAFKNGEFIEVTEKDTEGRWSVFFFYPADFTFVCPTELGDVADHYEELQKLGVDVYSVSTDTHFTHKAWHSSSETIAKIKYAMIGDPTGALTRNFDNMREDEGLADRATFVVDPQGIIQAIEVTAEGIGRDASDLLRKIKAAQYVAAHPGEVC 166
               SCOP domains d1yexe_ E: Alkyl hydroperoxide reductase AhpC                                                                                                                         SCOP domains
               CATH domains 1yexE00 E:1-165 Glutaredoxin                                                                                                                                          CATH domains
           Pfam domains (1) --AhpC-TSA-1yexE01 E:3-133                                                                                                           -------------------1-cysPrx_C-1y Pfam domains (1)
           Pfam domains (2) --AhpC-TSA-1yexE02 E:3-133                                                                                                           -------------------1-cysPrx_C-1y Pfam domains (2)
           Pfam domains (3) --AhpC-TSA-1yexE03 E:3-133                                                                                                           -------------------1-cysPrx_C-1y Pfam domains (3)
           Pfam domains (4) --AhpC-TSA-1yexE04 E:3-133                                                                                                           -------------------1-cysPrx_C-1y Pfam domains (4)
           Pfam domains (5) --AhpC-TSA-1yexE05 E:3-133                                                                                                           -------------------1-cysPrx_C-1y Pfam domains (5)
         Sec.struct. author ..........eeeeee..eeeeee.hhh...eeeeee.........hhhhhhhhhhhhhhhhhheeeeeee..hhhhhhhhh..hhhhhh...eeee...hhhhhhh...........eeeeee.....eeeeeee......hhhhhhhhhhhhhhhhhh..... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE THIOREDOXIN_2  PDB: E:1-156 UniProt: 2-157                                                                                                                  --------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1yex E   1 SLINTKIKPFKNQAFKNGEFIEVTEKDTEGRWSVFFFYPADFTFVCPTELGDVADHYEELQKLGVDVYSVSTDTHFDHKAWHSSSETIAKIKYAMIGDPTGALTRNFDNMREDEGLADRATFVVDPQGIIQAIEVTAEGIGRDASDLLRKIKAAQYVAAHPGEVC 165
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160     

   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, 5)

Asymmetric Unit

(-) CATH Domains  (1, 5)

Asymmetric Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (2, 10)

Asymmetric Unit

(-) Gene Ontology  (7, 7)

Asymmetric Unit(hide GO term definitions)
Chain A,B,C,D,E   (AHPC_SALTY | P0A251)
molecular function
    GO:0016209    antioxidant activity    Inhibition of the reactions brought about by dioxygen (O2) or peroxides. Usually the antioxidant is effective because it can itself be more easily oxidized than the substance protected. The term is often applied to components that can trap free radicals, thereby breaking the chain reaction that normally leads to extensive biological damage.
    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:0051920    peroxiredoxin activity    Catalysis of the reaction: 2 R'-SH + ROOH = R'-S-S-R' + H2O + ROH.
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: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.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        AHPC_SALTY | P0A2511n8j 1yep 1yf0 1yf1 3emp 4ma9 4mab 4xra 4xrd 4xs1 4xs4 4xs6 4xs8 4xts

(-) Related Entries Specified in the PDB File

1kyg SAME PROTEIN WITHOUT MUTATION.