1IWH - JenaLib

Title :   CRYSTAL STRUCTURE OF HORSE CARBONMONOXYHEMOGLOBIN-BEZAFIBRATE COMPLEX AT 1.55A RESOLUTION: A NOVEL ALLOSTERIC BINDING SITE IN R-STATE HEMOGLOBIN

Authors :   N. Shibayama, S. Miura, J. R. H. Tame, T. Yonetani, S. -Y. Park

Date :   15 May 02 (Deposition) - 02 Oct 02 (Release) - 16 Nov 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.55

Chains :   Asym. Unit : A,B
Biol. Unit 1: A,B  (2x)

Keywords :   Horse, Hemoglobin, Ligand-Bezafibrate, Carbonmonoxyhemoglobin, Oxygen Storage-Transport Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   N. Shibayama, S. Miura, J. R. H. Tame, T. Yonetani, S. -Y. Park
Crystal Structure Of Horse Carbonmonoxyhemoglobin-Bezafibrate Complex At 1. 55A Resolution. A Novel Allosteric Binding Site In R-State Hemoglobin
J. Biol. Chem. V. 277 38791 2002
PubMed-ID: 12122004 | Reference-DOI: 10.1074/JBC.M205461200

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (3, 5)

Sites (5, 5)

Asymmetric Unit (5, 5)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	TYR A:42 , HIS A:58 , LYS A:61 , ASN A:82 , LEU A:83 , LEU A:86 , HIS A:87 , LEU A:91 , VAL A:93 , ASN A:97 , PHE A:98 , LEU A:101 , LEU A:136 , CMO A:143 , PEM A:501 , HOH A:1007 , HOH A:1070 , HOH A:1119 , HOH A:1126 , HOH A:1127 , HOH A:1181 , HOH A:1229	BINDING SITE FOR RESIDUE HEM A 142
2	AC2	SOFTWARE	HIS A:58 , VAL A:62 , HIS A:87 , HEM A:142	BINDING SITE FOR RESIDUE CMO A 143
3	AC3	SOFTWARE	THR B:238 , PHE B:241 , PHE B:242 , HIS B:263 , LYS B:266 , SER B:270 , LEU B:288 , HIS B:292 , LEU B:296 , ASN B:302 , PHE B:303 , LEU B:306 , LEU B:341 , CMO B:348 , HOH B:1051 , HOH B:1130 , HOH B:1180 , HOH B:1241	BINDING SITE FOR RESIDUE HEM B 347
4	AC4	SOFTWARE	HIS B:263 , VAL B:267 , HIS B:292 , HEM B:347	BINDING SITE FOR RESIDUE CMO B 348
5	AC5	SOFTWARE	ALA A:57 , LYS A:60 , LYS A:61 , ASP A:64 , ALA A:65 , LEU A:68 , HEM A:142 , HOH A:1001 , HOH A:1053 , HOH A:1091 , HOH A:1273	BINDING SITE FOR RESIDUE PEM A 501

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (2, 2)

PROSITE Motifs (1, 2)

Exons (0, 0)

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 HBA_HORSE | P01958 from UniProtKB/Swiss-Prot  Length:142

    Alignment length:141
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141 
            HBA_HORSE     2 VLSAADKTNVKAAWSKVGGHAGEYGAEALERMFLGFPTTKTYFPHFDLSHGSAQVKAHGKKVGDALTLAVGHLDDLPGALSNLSDLHAHKLRVDPVNFKLLSHCLLSTLAVHLPNDFTPAVHASLDKFLSSVSTVLTSKYR 142
               SCOP domains d1iwha_ A: Hemoglobin, alpha-chain                                                                                                            SCOP domains
               CATH domains 1iwhA00 A:1-141 Globins                                                                                                                       CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) -----------------------F-----------------------------------Q--------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -GLOBIN  PDB: A:2-141 UniProt: 3-142                                                                                                          PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1iwh A   1 VLSAADKTNVKAAWSKVGGHAGEYGAEALERMFLGFPTTKTYFPHFDLSHGSAQVKAHGKKVGDALTLAVGHLDDLPGALSNLSDLHAHKLRVDPVNFKLLSHCLLSTLAVHLPNDFTPAVHASLDKFLSSVSTVLTSKYR 141
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140

Chain B from PDB  Type:PROTEIN  Length:146
 aligned with HBB_HORSE | P02062 from UniProtKB/Swiss-Prot  Length:146

    Alignment length:146
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140      
            HBB_HORSE     1 VQLSGEEKAAVLALWDKVNEEEVGGEALGRLLVVYPWTQRFFDSFGDLSNPGAVMGNPKVKAHGKKVLHSFGEGVHHLDNLKGTFAALSELHCDKLHVDPENFRLLGNVLVVVLARHFGKDFTPELQASYQKVVAGVANALAHKYH 146
               SCOP domains d1iwhb_ B: Hemoglobin, beta-chain                                                                                                                  SCOP domains
               CATH domains 1iwhB00 B:201-346 Globins                                                                                                                          CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) --GLOBIN  PDB: B:203-346 UniProt: 3-146                                                                                                            PROSITE (2)
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1iwh B 201 VQLSGEEKAAVLALWDKVNEEEVGGEALGRLLVVYPWTQRFFDSFGDLSNPGAVMGNPKVKAHGKKVLHSFGEGVHHLDNLKGTFAALSELHCDKLHVDPENFRLLGNVLVVVLARHFGKDFTPELQASYQKVVAGVANALAHKYH 346
                                   210       220       230       240       250       260       270       280       290       300       310       320       330       340

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 (2, 2)

CATH Domains (1, 2)

Pfam Domains (0, 0)

Gene Ontology (8, 16)

Asymmetric Unit(hide GO term definitions)

Chain A (HBA_HORSE | P01958)

molecular function
	GO:0020037	heme binding	Interacting selectively and non-covalently with heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring.
	GO:0005506	iron ion binding	Interacting selectively and non-covalently with iron (Fe) ions.
	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.
cellular component
	GO:0005833	hemoglobin complex	An iron-containing, oxygen carrying complex. In vertebrates it is made up of two pairs of associated globin polypeptide chains, each chain carrying a noncovalently bound heme prosthetic group.

Chain B (HBB_HORSE | P02062)

molecular function
	GO:0020037	heme binding	Interacting selectively and non-covalently with heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring.
	GO:0005506	iron ion binding	Interacting selectively and non-covalently with iron (Fe) ions.
	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.
cellular component
	GO:0005833	hemoglobin complex	An iron-containing, oxygen carrying complex. In vertebrates it is made up of two pairs of associated globin polypeptide chains, each chain carrying a noncovalently bound heme prosthetic group.

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