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Title :  THEORETICAL STRUCTURE OF NITROGENASE MOLYBDENUM-IRON PROTEIN ALPHA CHAIN
 
Authors :  A. Srinivasareddy, K. Narayana, G. Rambabu
Date :  12 Apr 02  (Deposition) - 01 May 02  (Release) - 01 May 02  (Revision)
Method :  THEORETICAL MODEL
Resolution :  NOT APPLICABLE
Chains :  Theor. Model :  A
Keywords :  Oxidoreductase, Nitrogen Fixation, Molybdenum, Iron-Sulfur (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  A. Srinivasareddy, K. Narayana, G. Rambabu
Theoretical Structure Of Nitrogenase Molybdenum-Iron Protein Alpha Chain
To Be Published
PubMed: search
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - NITROGENASE MOLYBDENUM-IRON PROTEIN ALPHA CHAIN
    Chains: A
    EC Number: 1.18.6.1
    Organism Common: BACTERIA
    Organism Scientific: RHIZOBIUM SP. COWPEA
    Strain: IRC78
    Synonym: NITROGENASE COMPONENT I, DINITROGENASE

 Structural Features

(-) Chains, Units

  
Theoretical Model : 

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 1LFX)

(-) Sites  (0, 0)

(no "Site" information available for 1LFX)

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (1, 1)

Theoretical Model
No.Residues
1Gly A:457 -Pro A:458

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (2, 2)

Theoretical Model (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1NITROGENASE_1_1PS00699 Nitrogenases component 1 alpha and beta subunits signature 1.NIFD_RHICP86-93  1A:86-93
2NITROGENASE_1_2PS00090 Nitrogenases component 1 alpha and beta subunits signature 2.NIFD_RHICP157-171  1A:157-171

(-) Exons   (0, 0)

(no "Exon" information available for 1LFX)

(-) Sequences/Alignments

Theoretical Model
   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:500
 aligned with NIFD_RHICP | P06769 from UniProtKB/Swiss-Prot  Length:500

    Alignment length:500
                                    10        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       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490       500
           NIFD_RHICP     1 MSLASTQSIAEIRARNKELIQEVLKVYPEKTAKRRAKHLNVHQAGKSDCGVKSNIKSIPGVMTIRGCAYAGSKGVVWGPIKDMVHISHGPVGCGQYSWGSRRNYYVGTTGIDSFVTLQFTFDFREKDIVFGGDKKLVKILDEIQELFPLNNGITIQSECPIGLIGDDIEAVSRAKSKEYGGKTIVPVRCEGFRGVSQSLGHHIANDAVRDWIFDQVEADGKPKVEPTPYDVAIIGDYNIGGDAWSSRILLEEMGLRVIAQWSGDGSLAELEANVEGKLNILHCYRSMNYISRHMEEKFGIPWCEYNFFGPSKIAESLRRIAGYFDDKIKEGAERVIEKYQPLVNAVIAKYRPRLEGKTVMLYVGGLRSRHVIGAYEDLGMEVIGTGYEFGHNDDYQRTAQHYVKDGTLIHDDVNGYEFERFVEKLQPDLVGSGIKEKYVFQKMGGPFRQMHSWDYSGPYHGYDGFAIFARDMDMAINSPVWKKTKAPWKEASRAKLLAAE 500
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .......hhhhhhh...hhhhhhhh..hhhhhhhhhhheee.........................hhhhhhh..........eeeee...hhhhhhh....................ee...hhhhhhhhhhhhhhhhhhhhhhhh.....eeeeehhhhhhhh.hhhhhhhhhhhh.....eeee........hhhhhhhhhhhhhhhhhhhhhh............eeeee...hhhhhhhhhhhhhhhh..eeeee.....hhhhhhhhhhh.eeee.hhhhhhhhhhhhhhhhh..eee....hhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..eeee....hhhhhhhhhhhhh..eeeeeee...hhhhhhhhhhhh.....eeee..hhhhhhhhhhhhh..eeeehhhhhhhhhhhh..eee..hhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhh............... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------NITROGEN---------------------------------------------------------------NITROGENASE_1_2----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1lfx A   1 MSLASTQSIAEIRARNKELIQEVLKVYPEKTAKRRAKHLNVHQAGKSDCGVKSNIKSIPGVMTIRGCAYAGSKGVVWGPIKDMVHISHGPVGCGQYSWGSRRNYYVGTTGIDSFVTLQFTFDFREKDIVFGGDKKLVKILDEIQELFPLNNGITIQSECPIGLIGDDIEAVSRAKSKEYGGKTIVPVRCEGFRGVSQSLGHHIANDAVRDWIFDQVEADGKPKVEPTPYDVAIIGDYNIGGDAWSSRILLEEMGLRVIAQWSGDGSLAELEANVEGKLNILHCYRSMNYISRHMEEKFGIPWCEYNFFGPSKIAESLRRIAGYFDDKIKEGAERVIEKYQPLVNAVIAKYRPRLEGKTVMLYVGGLRSRHVIGAYEDLGMEVIGTGYEFGHNDDYQRTAQHYVKDGTLIHDDVNGYEFERFVEKLQPDLVGSGIKEKYVFQKMGGPFRQMHSWDYSGPYHGYDGFAIFARDMDMAINSPVWKKTKAPWKEASRAKLLAAE 500
                                    10        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       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490       500
   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  (0, 0)

(no "SCOP Domain" information available for 1LFX)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1LFX)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (10, 10)

Theoretical Model(hide GO term definitions)
Chain A   (NIFD_RHICP | P06769)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0018697    carbonyl sulfide nitrogenase activity    Catalysis of the reaction: carbonyl sulfide + 2 H+ + 2 e- = hydrogen sulfide + carbon monoxide.
    GO:0051536    iron-sulfur cluster binding    Interacting selectively and non-covalently with an iron-sulfur cluster, a combination of iron and sulfur atoms.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0016163    nitrogenase activity    Catalysis of the reaction: 8 reduced ferredoxin + 8 H+ + nitrogen + 16 ATP = 8 oxidized ferredoxin + 2 NH3 + 16 ADP + 16 phosphate.
    GO:0000166    nucleotide binding    Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
    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:0009399    nitrogen fixation    The process in which nitrogen is taken from its relatively inert molecular form (N2) in the atmosphere and converted into nitrogen compounds useful for other chemical processes, such as ammonia, nitrate and nitrogen dioxide.
    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:0016612    molybdenum-iron nitrogenase complex    An enzyme complex containing a molybdenum-iron cluster found in many species. It is composed of two proteins, dinitrogenase and nitrogenase reductase; dinitrogenase, the molybdenum-iron protein, is tetrameric with an alpha2-beta2 structure, and nitrogenase reductase is a homodimer.

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    Gly A:457 - Pro A:458   [ RasMol ]  
 

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 Related Entries

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(-) Related Entries Specified in the PDB File

1g20 1G20 CHAIN A HAS 70% SEQUENCE SIMILARITY (E 0.0) WITH NITROGENASE MOLYBDENUM-IRON PROTEIN ALPHA CHAIN
1n2c 1N2C CHAIN A HAS 70% SEQUENCE SIMILARITY (E 0.0) WITH NITROGENASE MOLYBDENUM-IRON PROTEIN ALPHA CHAIN