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(-) Description

Title :  AZURIN MUTANT WITH MET 121 REPLACED BY HIS, PH 6.5 CRYSTAL FORM, DATA COLLECTED AT-180 DEGREES CELSIUS
 
Authors :  A. Messerschmidt, L. Prade
Date :  28 Jan 98  (Deposition) - 29 Apr 98  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.91
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Electron Transport, Cuproprotein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  A. Messerschmidt, L. Prade, S. J. Kroes, J. Sanders-Loehr, R. Huber, G. W. Canters
Rack-Induced Metal Binding Vs. Flexibility: Met121His Azurin Crystal Structures At Different Ph.
Proc. Natl. Acad. Sci. Usa V. 95 3443 1998
PubMed-ID: 9520385  |  Reference-DOI: 10.1073/PNAS.95.7.3443
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - AZURIN
    Cellular Location: PERIPLASM
    Chains: A, B
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Gene: AZU
    Expression System Plasmid: PCH11
    Expression System Strain: JM101
    Expression System Taxid: 562
    Gene: AZU
    Mutation: YES
    Organism Scientific: ACHROMOBACTER DENITRIFICANS
    Organism Taxid: 32002

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 4)

Asymmetric/Biological Unit (2, 4)
No.NameCountTypeFull Name
1CU2Ligand/IonCOPPER (II) ION
2SO42Ligand/IonSULFATE ION

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS A:46 , CYS A:112 , HIS A:117 , HIS A:121BINDING SITE FOR RESIDUE CU A 130
2AC2SOFTWAREALA A:75 , GLY A:76 , HIS A:83 , HOH A:161 , HOH A:171 , HOH A:295 , HOH A:302BINDING SITE FOR RESIDUE SO4 A 131
3AC3SOFTWAREHIS B:46 , CYS B:112 , HIS B:117 , HIS B:121BINDING SITE FOR RESIDUE CU B 130
4AC4SOFTWAREALA B:75 , GLY B:76 , HIS B:83 , HOH B:154 , HOH B:219 , HOH B:267 , HOH B:275BINDING SITE FOR RESIDUE SO4 B 131

(-) SS Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1A:3 -A:26
2B:3 -B:26

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1A4B)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1A4B)

(-) PROSITE Motifs  (1, 2)

Asymmetric/Biological Unit (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1COPPER_BLUEPS00196 Type-1 copper (blue) proteins signature.AZUR_ACHDE125-141
 		  2A:105-120
B:105-120

(-) Exons   (0, 0)

(no "Exon" information available for 1A4B)

(-) Sequences/Alignments

Asymmetric/Biological 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:129
 aligned with AZUR_ACHDE | P00280 from UniProtKB/Swiss-Prot  Length:149

    Alignment length:129
                                    30        40        50        60        70        80        90       100       110       120       130       140         
           AZUR_ACHDE    21 AQCEATIESNDAMQYNLKEMVVDKSCKQFTVHLKHVGKMAKVAMGHNWVLTKEADKQGVATDGMNAGLAQDYVKAGDTRVIAHTKVIGGGESDSVTFDVSKLTPGEAYAYFCSFPGHWAMMKGTLKLSN 149
               SCOP domains d1a4ba_ A: Azurin                                                                                                                 SCOP domains
               CATH domains 1a4bA00 A:1-129 Cupredoxins -  blue copper proteins                                                                               CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------- Pfam domains
     Sec.struct. author (1) ..eeeeeeee...eee.eeeee....eeeeeeeeee.........eeeeee...hhhhhhhhhhhhh.............eeeeeee...-------hhhhh.....eeeee........eeeeeeee. Sec.struct. author (1)
     Sec.struct. author (2) ------------------------------------------------------------------------------------------eeeeeeeee------------------------------ Sec.struct. author (2)
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------COPPER_BLUE      -------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1a4b A   1 AQCEATIESNDAMQYDLKEMVVDKSCKQFTVHLKHVGKMAKSAMGHNWVLTKEADKEGVATDGMNAGLAQDYVKAGDTRVIAHTKVIGGGESDSVTFDVSKLTPGEAYAYFCSFPGHWAMHKGTLKLSN 129
                                    10        20        30        40        50        60        70        80        90       100       110       120         


Chain B from PDB  Type:PROTEIN  Length:129
 aligned with AZUR_ACHDE | P00280 from UniProtKB/Swiss-Prot  Length:149

    Alignment length:129
                                    30        40        50        60        70        80        90       100       110       120       130       140         
           AZUR_ACHDE    21 AQCEATIESNDAMQYNLKEMVVDKSCKQFTVHLKHVGKMAKVAMGHNWVLTKEADKQGVATDGMNAGLAQDYVKAGDTRVIAHTKVIGGGESDSVTFDVSKLTPGEAYAYFCSFPGHWAMMKGTLKLSN 149
               SCOP domains d1a4bb_ B: Azurin                                                                                                                 SCOP domains
               CATH domains 1a4bB00 B:1-129 Cupredoxins -  blue copper proteins                                                                               CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------- Pfam domains
     Sec.struct. author (1) ..eeeeeeee...eee.eeeee....eeeeeeeeee.........eeeeee...hhhhhhhhhhhhh.............eeeeeee...-------hhhhh.....eeeee........eeeeeeee. Sec.struct. author (1)
     Sec.struct. author (2) ------------------------------------------------------------------------------------------eeeeeeeee------------------------------ Sec.struct. author (2)
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------COPPER_BLUE      -------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1a4b B   1 AQCEATIESNDAMQYDLKEMVVDKSCKQFTVHLKHVGKMAKSAMGHNWVLTKEADKEGVATDGMNAGLAQDYVKAGDTRVIAHTKVIGGGESDSVTFDVSKLTPGEAYAYFCSFPGHWAMHKGTLKLSN 129
                                    10        20        30        40        50        60        70        80        90       100       110       120
   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/Biological Unit
(-)
Class: All beta proteins (24004)

(-) CATH Domains  (1, 2)

Asymmetric/Biological Unit
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1A4B)

(-) Gene Ontology  (5, 5)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (AZUR_ACHDE | P00280)
molecular function
    GO:0005507    copper ion binding    Interacting selectively and non-covalently with copper (Cu) ions.
    GO:0009055    electron carrier activity    Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
biological process
    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.
cellular component
    GO:0042597    periplasmic space    The region between the inner (cytoplasmic) and outer membrane (Gram-negative Bacteria) or cytoplasmic membrane and cell wall (Fungi and Gram-positive Bacteria).

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 Related Entries

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

UniProtKB/Swiss-Prot
        AZUR_ACHDE | P00280: 1a4a 1a4c 1aiz 1azb 1azc 1uri 2aza

(-) Related Entries Specified in the PDB File

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