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(-) Description

Title :  STRUCTURE DETERMINATION AND REFINEMENT OF HOMOTETRAMERIC HEMOGLOBIN FROM URECHIS CAUPO AT 2.5 ANGSTROMS RESOLUTION
 
Authors :  M. Hackert, P. Kolatkar, S. R. Ernst, C. M. Ogata, W. A. Hendrickson, E. A. Merritt, R. P. Phizackerley
Date :  03 Dec 91  (Deposition) - 31 Oct 93  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.50
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A,B  (2x)
Keywords :  Oxygen Transport (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  P. R. Kolatkar, S. R. Ernst, M. L. Hackert, C. M. Ogata, W. A. Hendrickson, E. A. Merritt, R. P. Phizackerley
Structure Determination And Refinement Of Homotetrameric Hemoglobin From Urechis Caupo At 2. 5 A Resolution.
Acta Crystallogr. , Sect. B V. 48 191 1992
PubMed-ID: 1515107  |  Reference-DOI: 10.1107/S0108768191012363
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - HEMOGLOBIN (CYANO MET)
    Chains: A, B
    Engineered: YES
    Gene: CDNA
    Organism Scientific: URECHIS CAUPO
    Organism Taxid: 6431

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit : AB
Biological Unit 1 (2x): AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 4)

Asymmetric Unit (2, 4)
No.NameCountTypeFull Name
1CYN2Ligand/IonCYANIDE ION
2HEM2Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
Biological Unit 1 (2, 8)
No.NameCountTypeFull Name
1CYN4Ligand/IonCYANIDE ION
2HEM4Ligand/IonPROTOPORPHYRIN IX CONTAINING FE

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREPHE A:44 , GLN A:64 , VAL A:68 , HEM A:143BINDING SITE FOR RESIDUE CYN A 142
2AC2SOFTWAREGLN B:64 , HEM B:143BINDING SITE FOR RESIDUE CYN B 142
3AC3SOFTWARETYR A:33 , PHE A:43 , PHE A:44 , LYS A:46 , GLN A:64 , LYS A:90 , SER A:93 , HIS A:94 , ILE A:99 , HIS A:103 , PHE A:104 , CYN A:142BINDING SITE FOR RESIDUE HEM A 143
4AC4SOFTWARETYR B:33 , PHE B:43 , LYS B:46 , GLN B:64 , VAL B:68 , TYR B:71 , LYS B:90 , SER B:93 , HIS B:94 , ILE B:99 , HIS B:103 , PHE B:104 , LEU B:107 , CYN B:142 , HOH B:448 , HOH B:504 , HOH B:604BINDING SITE FOR RESIDUE HEM B 143

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 2)

Asymmetric Unit (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1GLOBINPS01033 Globin family profile.HBF1_URECA3-141
 		  2A:2-140
B:2-140
Biological Unit 1 (1, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1GLOBINPS01033 Globin family profile.HBF1_URECA3-141
 		  4A:2-140
B:2-140

(-) Exons   (0, 0)

(no "Exon" information available for 1ITH)

(-) 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:141
 aligned with HBF1_URECA | P06148 from UniProtKB/Swiss-Prot  Length:142

    Alignment length:141
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141 
           HBF1_URECA     2 GLTTAQIKAIQDHWFLNIKGCLQAAADSIFFKYLTAYPGDLAFFHKFSSVPLYGLRSNPAYKAQTLTVINYLDKVVDALGGNAGALMKAKVPSHDAMGITPKHFGQLLKLVGGVFQEEFSADPTTVAAWGDAAGVLVAAMK 142
               SCOP domains d1itha_ A: Hemoglobin                                                                                                                         SCOP domains
               CATH domains 1ithA00 A:1-141 Globins                                                                                                                       CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhh.......hhhhh..hhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -GLOBIN  PDB: A:2-140 UniProt: 3-141                                                                                                        - PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1ith A   1 GLTAAQIKAIQDHWFLNIKGCLQAAADSIFFKYLTAYPGDLAFFHKFSSVPLYGLRSNPAYKAQTLTVINYLDKVVDALGGNAGALMKAKVPSHDAMGITPKHFGQLLKLVGGVFQEEFSADPTTVAAWGDAAGVLVAAMK 141
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140 


Chain B from PDB  Type:PROTEIN  Length:141
 aligned with HBF1_URECA | P06148 from UniProtKB/Swiss-Prot  Length:142

    Alignment length:141
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141 
           HBF1_URECA     2 GLTTAQIKAIQDHWFLNIKGCLQAAADSIFFKYLTAYPGDLAFFHKFSSVPLYGLRSNPAYKAQTLTVINYLDKVVDALGGNAGALMKAKVPSHDAMGITPKHFGQLLKLVGGVFQEEFSADPTTVAAWGDAAGVLVAAMK 142
               SCOP domains d1ithb_ B: Hemoglobin                                                                                                                         SCOP domains
               CATH domains 1ithB00 B:1-141 Globins                                                                                                                       CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhh.......hhhhh..hhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -GLOBIN  PDB: B:2-140 UniProt: 3-141                                                                                                        - PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1ith B   1 GLTAAQIKAIQDHWFLNIKGCLQAAADSIFFKYLTAYPGDLAFFHKFSSVPLYGLRSNPAYKAQTLTVINYLDKVVDALGGNAGALMKAKVPSHDAMGITPKHFGQLLKLVGGVFQEEFSADPTTVAAWGDAAGVLVAAMK 141
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140
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  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 alpha proteins (14657)

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (6, 6)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (HBF1_URECA | P06148)
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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