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(-) Description

Title :  THE X-RAY STRUCTURE OF FERRIC ESCHERICHIA COLI FLAVOHEMOGLOBIN REVEALS AN UNESPECTED GEOMETRY OF THE DISTAL HEME POCKET
 
Authors :  A. Ilari, K. A. Johnson, A. Bonamore, A. Farina, A. Boffi
Date :  13 Feb 02  (Deposition) - 06 Aug 02  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.19
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (12x)
Keywords :  Oxidoreductase, Nadp, Heme, Flavoprotein, Fad, Iron Transpor (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  A. Ilari, A. Bonamore, A. Farina, K. A. Johnson, A. Boffi
The X-Ray Structure Of Ferric Escherichia Coli Flavohemoglobin Reveals An Unexpected Geometry Of The Distal Heme Pocket
J. Biol. Chem. V. 277 23725 2002
PubMed-ID: 11964402  |  Reference-DOI: 10.1074/JBC.M202228200

(-) Compounds

Molecule 1 - FLAVOHEMOPROTEIN
    ChainsA
    EC Number1.6.99.7
    Organism ScientificESCHERICHIA COLI
    Organism Taxid562
    SynonymFLAVOHEMOGLOBIN, DIHYDROPTERIDINE REDUCTASE, HEMOGLOBIN-LIKE PROTEIN, DIHYDROPTERIDINE REDUCTASE, FERRISIDEROPHORE REDUCTASE B, NITRIC OXIDE DIOXYGENASE, NOD

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit A
Biological Unit 1 (12x)A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (4, 5)

Asymmetric Unit (4, 5)
No.NameCountTypeFull Name
1CL1Ligand/IonCHLORIDE ION
2FAD1Ligand/IonFLAVIN-ADENINE DINUCLEOTIDE
3HEM1Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
4NA2Ligand/IonSODIUM ION
Biological Unit 1 (2, 24)
No.NameCountTypeFull Name
1CL-1Ligand/IonCHLORIDE ION
2FAD12Ligand/IonFLAVIN-ADENINE DINUCLEOTIDE
3HEM12Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
4NA-1Ligand/IonSODIUM ION

(-) Sites  (5, 5)

Asymmetric Unit (5, 5)
No.NameEvidenceResiduesDescription
1AC1SOFTWARELYS A:40 , PHE A:43 , GLN A:201 , GLU A:202BINDING SITE FOR RESIDUE NA A1399
2AC2SOFTWAREGLN A:271 , HIS A:294 , HIS A:302 , ALA A:303 , HOH A:2137BINDING SITE FOR RESIDUE NA A1400
3AC3SOFTWAREGLY A:51BINDING SITE FOR RESIDUE CL A1401
4AC4SOFTWAREASN A:44 , SER A:46 , GLN A:48 , ASN A:50 , TYR A:188 , ARG A:204 , GLN A:205 , TYR A:206 , SER A:207 , ALA A:220 , VAL A:221 , LYS A:222 , GLU A:224 , GLU A:225 , GLY A:227 , GLN A:228 , VAL A:229 , SER A:230 , VAL A:269 , THR A:272 , GLU A:388 , PHE A:390 , HOH A:2095 , HOH A:2103 , HOH A:2187 , HOH A:2188 , HOH A:2189BINDING SITE FOR RESIDUE FAD A1397
5AC5SOFTWARELEU A:39 , ASN A:44 , GLN A:53 , ALA A:56 , LEU A:57 , ALA A:60 , ILE A:61 , ILE A:81 , LYS A:84 , HIS A:85 , PHE A:88 , ILE A:90 , GLN A:94 , TYR A:95 , VAL A:98 , LEU A:127 , PRO A:392 , HIS A:393 , HOH A:2190 , HOH A:2191BINDING SITE FOR RESIDUE HEM A1398

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (2, 2)

Asymmetric Unit (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1GLOBINPS01033 Globin family profile.HMP_ECOLI1-134  1A:1-134
2FAD_FRPS51384 Ferredoxin reductase-type FAD binding domain profile.HMP_ECOLI150-255  1A:150-255
Biological Unit 1 (2, 24)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1GLOBINPS01033 Globin family profile.HMP_ECOLI1-134  12A:1-134
2FAD_FRPS51384 Ferredoxin reductase-type FAD binding domain profile.HMP_ECOLI150-255  12A:150-255

(-) Exons   (0, 0)

(no "Exon" information available for 1GVH)

(-) 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:396
 aligned with HMP_ECOLI | P24232 from UniProtKB/Swiss-Prot  Length:396

    Alignment length:396
                                    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      
            HMP_ECOLI     1 MLDAQTIATVKATIPLLVETGPKLTAHFYDRMFTHNPELKEIFNMSNQRNGDQREALFNAIAAYASNIENLPALLPAVEKIAQKHTSFQIKPEQYNIVGEHLLATLDEMFSPGQEVLDAWGKAYGVLANVFINREAEIYNENASKAGGWEGTRDFRIVAKTPRSALITSFELEPVDGGAVAEYRPGQYLGVWLKPEGFPHQEIRQYSLTRKPDGKGYRIAVKREEGGQVSNWLHNHANVGDVVKLVAPAGDFFMAVADDTPVTLISAGVGQTPMLAMLDTLAKAGHTAQVNWFHAAENGDVHAFADEVKELGQSLPRFTAHTWYRQPSEADRAKGQFDSEGLMDLSKLEGAFSDPTMQFYLCGPVGFMQFTAKQLVDLGVKQENIHYECFGPHKVL 396
               SCOP domains d1gvha1 A:1-146 Flavohemoglobin, N-terminal domain                                                                                                d1gvha2 A:147-253 Flavohemoglobin, central domain                                                          d1gvha3 A:254-396 Flavohemoglobin, C-terminal domain                                                                                            SCOP domains
               CATH domains 1gvhA01 A:1-148 Globins                                                                                                                             1gvhA02 A:149-254 Translation factors                                                                     1gvhA03 A:255-396 Nucleotide-binding domain of ferredoxin-NADP reductase (FNR) module                                                          CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh......eeeeeeeeeee....eeeeeeee.............eeeeee........eeeeee.........eeeeee....hhhhhhhhhh.....eeeeeeee............eeeeee...hhhhhhhhhhhhhh.....eeeeeee.......hhhhhhhhhhh...eeeeeee...hhhhhhhh...ee...hhhhh.........eeeee.hhhhhhhhhhhhhhh..hhh.eeee........ Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE GLOBIN  PDB: A:1-134 UniProt: 1-134                                                                                                   ---------------FAD_FR  PDB: A:150-255 UniProt: 150-255                                                                   --------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1gvh A   1 MLDAQTIATVKATIPLLVETGPKLTAHFYDRMFTHNPELKEIFNMSNQRNGDQREALFNAIAAYASNIENLPALLPAVEKIAQKHTSFQIKPEQYNIVGEHLLATLDEMFSPGQEVLDAWGKAYGVLANVFINREAEIYNENASKAGGWEGTRDFRIVAKTPRSALITSFELEPVDGGAVAEYRPGQYLGVWLKPEGFPHQEIRQYSLTRKPDGKGYRIAVKREEGGQVSNWLHNHANVGDVVKLVAPAGDFFMAVADDTPVTLISAGVGQTPMLAMLDTLAKAGHTAQVNWFHAAENGDVHAFADEVKELGQSLPRFTAHTWYRQPSEADRAKGQFDSEGLMDLSKLEGAFSDPTMQFYLCGPVGFMQFTAKQLVDLGVKQENIHYECFGPHKVL 396
                                    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      

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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  (3, 3)

Asymmetric Unit

(-) CATH Domains  (3, 3)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (15, 15)

Asymmetric Unit(hide GO term definitions)
Chain A   (HMP_ECOLI | P24232)
molecular function
    GO:0071949    FAD binding    Interacting selectively and non-covalently with the oxidized form, FAD, of flavin-adenine dinucleotide, the coenzyme or the prosthetic group of various flavoprotein oxidoreductase enzymes.
    GO:0005504    fatty acid binding    Interacting selectively and non-covalently with fatty acids, aliphatic monocarboxylic acids liberated from naturally occurring fats and oils by hydrolysis.
    GO:0020037    heme binding    Interacting selectively and non-covalently with heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring.
    GO:0032843    hydroperoxide reductase activity    Catalysis of the reaction: 2 RSH + ROOH = RSSR + ROH + H2O. This reaction is the thiol-dependent conversion of an organic hydroperoxide to the corresponding alcohol.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0008941    nitric oxide dioxygenase activity    Catalysis of the reaction: 2 NO + 2 O2 + NADPH + H+ = 2 nitrate + NADP+.
    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:0019825    oxygen binding    Interacting selectively and non-covalently with oxygen (O2).
    GO:0005344    oxygen transporter activity    Enables the directed movement of oxygen into, out of or within a cell, or between cells.
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.
    GO:0015671    oxygen transport    The directed movement of oxygen (O2) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0051409    response to nitrosative 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 a nitrosative stress stimulus. Nitrosative stress is a state often resulting from exposure to high levels of nitric oxide (NO) or the highly reactive oxidant peroxynitrite, which is produced following interaction of NO with superoxide anions.
    GO:0009636    response to toxic substance    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 a toxic stimulus.
    GO:0006810    transport    The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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