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(-) Description

Title :  STRUCTURAL STUDIES ON CORN NITRATE REDUCTASE: REFINED STRUCTURE OF THE CYTOCHROME B REDUCTASE FRAGMENT AT 2.5 ANGSTROMS, ITS ADP COMPLEX AND AN ACTIVE SITE MUTANT AND MODELING OF THE CYTOCHROME B DOMAIN
 
Authors :  G. Lu, Y. Lindqvist, G. Schneider
Date :  01 Feb 95  (Deposition) - 20 Apr 95  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.70
Chains :  Asym./Biol. Unit :  A
Keywords :  Oxidoreductase, Nitrogenous Acceptor, Nitrate Assimilating Enzyme (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  G. Lu, Y. Lindqvist, G. Schneider, U. Dwivedi, W. Campbell
Structural Studies On Corn Nitrate Reductase: Refined Structure Of The Cytochrome B Reductase Fragment At 2. 5 A, Its Adp Complex And An Active-Site Mutant And Modeling Of The Cytochrome B Domain.
J. Mol. Biol. V. 248 931 1995
PubMed-ID: 7760334  |  Reference-DOI: 10.1006/JMBI.1995.0273
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - NITRATE REDUCTASE
    Chains: A
    EC Number: 1.6.6.1
    Engineered: YES
    Organ: LEAF
    Organism Scientific: ZEA MAYS
    Organism Taxid: 4577

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (2, 2)
No.NameCountTypeFull Name
1ADP1Ligand/IonADENOSINE-5'-DIPHOSPHATE
2FAD1Ligand/IonFLAVIN-ADENINE DINUCLEOTIDE

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREARG A:62 , ALA A:63 , TYR A:64 , THR A:65 , LEU A:79 , VAL A:80 , LYS A:81 , TYR A:83 , PHE A:84 , PHE A:91 , GLY A:94 , GLY A:95 , LEU A:96 , MET A:97 , THR A:98 , SER A:146 , THR A:149 , PRO A:150BINDING SITE FOR RESIDUE FAD A 271
2AC2SOFTWARELYS A:81 , TYR A:83 , ASN A:175 , ARG A:176 , ALA A:224 , PRO A:244 , PRO A:246 , MET A:247 , PHE A:250 , ALA A:251BINDING SITE FOR RESIDUE ADP A 272

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1Gly A:114 -Pro A:115
2Gln A:162 -Pro A:163

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1CNF)

(-) Exons   (0, 0)

(no "Exon" information available for 1CNF)

(-) 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:260
 aligned with NIA1_MAIZE | P17571 from UniProtKB/Swiss-Prot  Length:621

    Alignment length:260
                                   371       381       391       401       411       421       431       441       451       461       471       481       491       501       511       521       531       541       551       561       571       581       591       601       611       621
           NIA1_MAIZE   362 EKIHCRLVGKKELSRDVRLFRFSLPSPDQVLGLPIGKHIFVCASIEGKLCMRAYTPTSMVDEIGHFDLLVKVYFKNEHPKFPNGGLMTQYLDSLPVGSYIDVKGPLGHVEYTGRGSFVINGKQRHASRLAMICGGSGITPMYQIIQAVLRDQPEDHTEMHLVYANRTEDDILLRDELDRWAAEYPDRLKVWYVIDQVKRPEEGWKYSVGFVTEAVLREHVPEGGDDTLALACGPPPMIQFAISPNLEKMKYDMANSFVVF 621
               SCOP domains d1cnfa1 A:11-124 Nitrate reductase core domain                                                                    d1cnfa2 A:125-270 Nitrate reductase                                                                                                                SCOP domains
               CATH domains 1cnfA01 A:11-116 Translation factors                                                                      1cnfA02 A:117-269 Nucleotide-binding domain of ferredoxin-NADP reductase (FNR) module                                                                    - CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeeeeeeeee..eeeeeee..............eeeeeeee..eeeeeee..........eeeeeee..............hhhhhhhh.....eeeeeeee..ee......eee..eee...eeeeeee...hhhhhhhhhhhhh.......eeeeeeee........hhhhhhhhhh....eeeeeee............ee....hhhhhhh.......eeeeee..hhhhh...hhhhh.....hhhheee. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1cnf A  11 GRIHCRLVAKKELSRDVRLFRFSLPSPDQVLGLPIGKHIFVCATIEGKLCMRAYTPTSMVDEIGHFDLLVKVYFKNEHPKFPNGGLMTQYLDSLPVGSYIDVKGPLGHVEYTGRGSFVINGKQRNARRLAMICGGSGITPMYQIIQAVLRDQPEDHTEMHLVYANRTEDDILLRDELDRWAAEYPDRLKVWYVIDQVKRPEEGWKYSVGFVTEAVLREHVPEGGDDTLALACGPPPMIQFAISPNLEKMKYDMANSFVVF 270
                                    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
   Legend:   → Mismatch (orange background)
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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  (2, 2)

Asymmetric/Biological Unit
(-)
Class: All beta proteins (24004)
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (2, 2)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (7, 7)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (NIA1_MAIZE | P17571)
molecular function
    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:0030151    molybdenum ion binding    Interacting selectively and non-covalently with molybdenum (Mo) ions.
    GO:0009703    nitrate reductase (NADH) activity    Catalysis of the reaction: nitrite + NAD+ + H2O = nitrate + NADH + 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: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: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.

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 Related Entries

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        NIA1_MAIZE | P17571: 1cne 2cnd

(-) Related Entries Specified in the PDB File

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