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(-) Description

Title :  CRYSTAL STRUCTURE OF THE NERVE TISSUE MINI-HEMOGLOBIN FROM THE NEMERTEAN WORM CEREBRATULUS LACTEUS
 
Authors :  A. Pesce, M. Nardini, S. Dewilde, E. Geuens, K. Yamauchi, P. Ascenzi, A. F. Riggs, L. Moens, M. Bolognesi
Date :  09 Jan 02  (Deposition) - 15 May 02  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.50
Chains :  Asym./Biol. Unit :  A
Keywords :  Nerve Tissue, Mini-Hemoglobin, Protein Cavities, Oxygen Transport, Oxygen Storage/Transport Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  A. Pesce, M. Nardini, S. Dewilde, E. Geuens, K. Yamauchi, P. Ascenzi, A. F. Riggs, L. Moens, M. Bolognesi
The 109 Residue Nerve Tissue Minihemoglobin From Cerebratulus Lacteus Highlights Striking Structural Plasticity Of The Alpha-Helical Globin Fold
Structure V. 10 725 2002
PubMed-ID: 12015154  |  Reference-DOI: 10.1016/S0969-2126(02)00763-3
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - NEURAL GLOBIN
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET3A
    Expression System Taxid: 562
    Organism Common: MILKY RIBBON-WORM
    Organism Scientific: CEREBRATULUS LACTEUS
    Organism Taxid: 6221
    Synonym: MINI-HEMOGLOBIN

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (4, 4)
No.NameCountTypeFull Name
1ACT1Ligand/IonACETATE ION
2HEM1Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
3OXY1Ligand/IonOXYGEN MOLECULE
4SO41Ligand/IonSULFATE ION

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREMET A:0 , VAL A:1 , TRP A:3 , ARG A:68 , HOH A:157 , HOH A:158 , HOH A:161 , HOH A:221 , HOH A:258BINDING SITE FOR RESIDUE SO4 A 152
2AC2SOFTWAREASN A:2 , HIS A:93 , HOH A:172BINDING SITE FOR RESIDUE ACT A 153
3AC3SOFTWAREMET A:0 , PHE A:10 , TYR A:21 , LYS A:24 , PHE A:25 , GLN A:44 , LYS A:47 , LEU A:65 , HIS A:69 , ARG A:72 , VAL A:74 , PHE A:79 , OXY A:150 , HOH A:169 , HOH A:173 , HOH A:179 , HOH A:184 , HOH A:201 , HOH A:242 , HOH A:258BINDING SITE FOR RESIDUE HEM A 144
4AC4SOFTWARETYR A:11 , PHE A:25 , GLN A:44 , HEM A:144BINDING SITE FOR RESIDUE OXY A 150

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1KR7)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1KR7)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1KR7)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1KR7)

(-) Exons   (0, 0)

(no "Exon" information available for 1KR7)

(-) 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:110
 aligned with GLBN_CERLA | O76242 from UniProtKB/Swiss-Prot  Length:110

    Alignment length:110
                                    10        20        30        40        50        60        70        80        90       100       110
           GLBN_CERLA     1 MVNWAAVVDDFYQELFKAHPEYQNKFGFKGVALGSLKGNAAYKTQAGKTVDYINAAIGGSADAAGLASRHKGRNVGSAEFHNAKACLAKACSAHGAPDLGHAIDDILSHL 110
               SCOP domains d1kr7a_ A: Nerve tissue mini-hemoglobin (neural globin)                                                        SCOP domains
               CATH domains 1kr7A00 A:0-109 Globins                                                                                        CATH domains
               Pfam domains -Globin-1kr7A01 A:1-87                                                                  ---------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhh...hhhhhhhhhhhhhhhhhhh....hhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------- Transcript
                 1kr7 A   0 MVNWAAVVDDFYQELFKAHPEYQNKFGFKGVALGSLKGNAAYKTQAGKTVDYINAAIGGSADAAGLASRHKGRNVGSAEFHNAKACLAKACSAHGAPDLGHAIDDILSHL 109
                                     9        19        29        39        49        59        69        79        89        99       109
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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, 1)

Asymmetric/Biological Unit
(-)
Class: All alpha proteins (14657)

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Mainly Alpha (13335)

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Clan: Globin (291)

(-) Gene Ontology  (6, 6)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (GLBN_CERLA | O76242)
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: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: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: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.

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  1kr7
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 Related Entries

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

UniProtKB/Swiss-Prot
        GLBN_CERLA | O76242: 1v07 2vyy 2vyz 2xkg 2xkh 2xki 4avd 4ave 4f68 4f69 4f6b 4f6d 4f6f 4f6g 4f6i 4f6j

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 1KR7)