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(-) Description

Title :  MET150LEU/PHE312CYS VARIANT OF NITRITE REDUCTASE FROM ALCALIGENES FAECALIS
 
Authors :  I. S. Macpherson, F. I. Rosell, M. Scofield, A. G. Mauk, M. E. P. Murphy
Date :  21 Apr 09  (Deposition) - 02 Feb 10  (Release) - 16 Feb 10  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.50
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (3x)
Keywords :  Nitrite Reductase, High-Throughput Screening, Oxidase, Copper, Fad, Flavoprotein, Metal-Binding, Nitrate Assimilation, Oxidoreductase, Periplasm, Pyrrolidone Carboxylic Acid (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  I. S. Macpherson, F. I. Rosell, M. Scofield, A. G. Mauk, M. E. Murphy
Directed Evolution Of Copper Nitrite Reductase To A Chromogenic Reductant.
Protein Eng. Des. Sel. V. 23 137 2010
PubMed-ID: 20083495  |  Reference-DOI: 10.1093/PROTEIN/GZP084

(-) Compounds

Molecule 1 - COPPER-CONTAINING NITRITE REDUCTASE
    Chains: A
    EC Number: 1.7.2.1
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET28A
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Gene: NIR, NIRK
    Organism Scientific: ALCALIGENES FAECALIS
    Organism Taxid: 511
    Strain: S-6
    Synonym: CU-NIR

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit : A
Biological Unit 1 (3x): A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 3)

Asymmetric Unit (2, 3)
No.NameCountTypeFull Name
1CSD1Mod. Amino Acid3-SULFINOALANINE
2CU2Ligand/IonCOPPER (II) ION
Biological Unit 1 (1, 3)
No.NameCountTypeFull Name
1CSD3Mod. Amino Acid3-SULFINOALANINE
2CU-1Ligand/IonCOPPER (II) ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS A:95 , CYS A:136 , PRO A:138 , HIS A:145 , LEU A:150BINDING SITE FOR RESIDUE CU A 340
2AC2SOFTWAREASP A:98 , HIS A:100 , HIS A:135 , HIS A:306BINDING SITE FOR RESIDUE CU A 341

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3H56)

(-) Cis Peptide Bonds  (2, 2)

Asymmetric Unit
No.Residues
1Pro A:22 -Pro A:23
2Val A:68 -Pro A:69

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3H56)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3H56)

(-) Exons   (0, 0)

(no "Exon" information available for 3H56)

(-) 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:336
 aligned with NIR_ALCFA | P38501 from UniProtKB/Swiss-Prot  Length:376

    Alignment length:336
                                    49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279       289       299       309       319       329       339       349       359       369      
            NIR_ALCFA    40 ATAAEIAALPRQKVELVDPPFVHAHSQVAEGGPKVVEFTMVIEEKKIVIDDAGTEVHAMAFNGTVPGPLMVVHQDDYLELTLINPETNTLMHNIDFHAATGALGGGGLTEINPGEKTILRFKATKPGVFVYHCAPPGMVPWHVVSGMNGAIMVLPREGLHDGKGKALTYDKIYYVGEQDFYVPRDENGKYKKYEAPGDAYEDTVKVMRTLTPTHVVFNGAVGALTGDKAMTAAVGEKVLIVHSQANRDTRPHLIGGHGDYVWATGKFNTPPDVDQETWFIPGGAAGAAFYTFQQPGIYAYVNHNLIEAFELGAAAHFKVTGEWNDDLMTSVLAPSG 375
               SCOP domains d3h56a1 A:4-161 automated matches                                                                                                                             d3h56a2 A:162-339 automated matches                                                                                                                                                SCOP domains
               CATH domains -------3h56A01 A:11-158 Cupredoxins -  blue copper proteins                                                                                                3h56A02 A:159-325 Cupredoxins -  blue copper proteins                                                                                                                  -------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .hhhhhhh..eee.....................eeeeeeeeeeeeee......eeeeeee........eeee...eeeeeeee..........ee....hhhhhhhhh.....eeeeeeee....eeeeee.....hhhhhhh...eeeeeee................eeeeeeeeee..............hhhhhhhhhhhhhh.....eeee.......hhhhheeee...eeeeeeee......eeee...eeeee.........eeee........eeeeeeee....eeeeeee.hhhhhhh...eeeeeee................ Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 3h56 A   4 ATAAEIAALPRQKVELVDPPFVHAHSQVAEGGPKVVEFTMVIEEKKIVIDDAGTEVHAMAFNGTVPGPLMVVHQDDYLELTLINPETNTLMHNIDFHAATGALGGGGLTEINPGEKTILRFKATKPGVFVYHCAPPGMVPWHVVSGLNGAIMVLPREGLHDGKGKALTYDKIYYVGEQDFYVPRDENGKYKKYEAPGDAYEDTVKVMRTLTPTHVVFNGAVGALTGDKAMTAAVGEKVLIVHSQANRDTRPHLIGGHGDYVWATGKFNTPPDVDQETWFIPGGAAGAAFYTFQQPGIYAYVNHNLIEAcELGAAAHFKVTGEWNDDLMTSVLAPSG 339
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333      
                                                                                                                                                                                                                                                                                                                                              312-CSD
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
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  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: All beta proteins (24004)

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3H56)

(-) Gene Ontology  (9, 9)

Asymmetric Unit(hide GO term definitions)
Chain A   (NIR_ALCFA | P38501)
molecular function
    GO:0005507    copper ion binding    Interacting selectively and non-covalently with copper (Cu) ions.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0050421    nitrite reductase (NO-forming) activity    Catalysis of the reaction: nitric oxide + H2O + ferricytochrome c = nitrite + ferrocytochrome c + 2 H+.
    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.
biological process
    GO:0019333    denitrification pathway    The reduction of nitrate to dinitrogen by four reactions; each intermediate is transformed to the next lower oxidation state; also part of cellular bioenergetics; the nitrogen compounds can serve as terminal acceptors for electron transport phosphorylation in place of oxygen.
    GO:0042128    nitrate assimilation    The nitrogen metabolic process that encompasses the uptake of nitrate from the environment and reduction to ammonia, and results in the incorporation of nitrogen derived from nitrate into cellular substances.
    GO:0006807    nitrogen compound metabolic process    The chemical reactions and pathways involving organic or inorganic compounds that contain nitrogen.
    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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  3h56
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  1.7.2.1
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 Related Entries

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

UniProtKB/Swiss-Prot
        NIR_ALCFA | P38501: 1aq8 1as6 1as7 1as8 1et5 1et7 1et8 1j9q 1j9r 1j9s 1j9t 1l9o 1l9p 1l9q 1l9r 1l9s 1l9t 1npj 1npn 1ntd 1sjm 1snr 1zdq 1zds 2afn 2b08 2e86 2fjs 2p80 2pp7 2pp8 2pp9 2ppa 2ppc 2ppd 2ppe 2ppf 3h4f 3h4h 4ysc 4yse 5d4h 5d4i 5d4j 5f7a 5f7b

(-) Related Entries Specified in the PDB File

1sjm HIGH RESOLUTION STRUCTURE OF WILD-TYPE NITRITE REDUCTASE FROM ALCALIGENES FAECALIS
3h4h