2QU0 - JenaLib

Asymmetric Unit (Jmol Viewer)

Asym. Unit - sites (Jmol Viewer)

Biological Unit 1 (Jmol Viewer)

Biol. Unit 1 - sites (Jmol Viewer)

Biological Unit 2 (Jmol Viewer)

Biological Unit 3 (Jmol Viewer)

Title :   CRYSTAL STRUCTURE DETERMINATION OF SHEEP METHEMOGLOBIN AT 2.7 ANGSTROM RESOLUTION

Authors :   K. Neelagandan, Pon. Sathya Moorthy, M. Balasubramanian, S. Sundaresan, M. N. Ponnuswamy

Date :   03 Aug 07 (Deposition) - 05 Aug 08 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.70

Chains :   Asym. Unit : A,B,C,D
Biol. Unit 1: A,B,C,D  (1x)
Biol. Unit 2: A,B  (1x)
Biol. Unit 3: C,D  (1x)

Keywords :   Hemoglobin, Ovis Aries, Hanging Drop, Quarternary Structure, Heme, Iron, Metal-Binding, Polymorphism, Transport, Oxygen Storage, Oxygen Transport (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   K. Neelagandan, Pon. Sathya Moorthy, M. Balasubramanian, S. Sundaresan, M. N. Ponnuswamy
Crystal Structure Determination Of Sheep(Ovis Aries) Methemoglobin At 2. 7 Angstrom Resolution
To Be Published
PubMed: search
(for further references see the PDB file header)

Molecule 1 - HEMOGLOBIN SUBUNIT ALPHA-1/2
	Chains	:	A, C
	Organism Common	:	SHEEP
	Organism Scientific	:	OVIS ARIES
	Organism Taxid	:	9940
	Synonym	:	HEMOGLOBIN ALPHA-1/2 CHAIN, ALPHA-1/2-GLOBIN
	Tissue	:	ERYTHROCYTE

Molecule 2 - HEMOGLOBIN SUBUNIT BETA
	Chains	:	B, D
	Organism Common	:	SHEEP
	Organism Scientific	:	OVIS ARIES
	Organism Taxid	:	9940
	Synonym	:	HEMOGLOBIN BETA CHAIN, BETA-GLOBIN
	Tissue	:	ERYTHROCYTE

		1	2	3	4
Asymmetric Unit	:	A	B	C	D
Biological Unit 1 (1x)	:	A	B	C	D
Biological Unit 2 (1x)	:	A	B
Biological Unit 3 (1x)	:			C	D

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (1, 4)

No.	Name	Count	Type	Full Name
1	HEM	4	Ligand/Ion	PROTOPORPHYRIN IX CONTAINING FE

Biological Unit 1 (1, 4)

No.	Name	Count	Type	Full Name
1	HEM	4	Ligand/Ion	PROTOPORPHYRIN IX CONTAINING FE

Biological Unit 2 (1, 2)

No.	Name	Count	Type	Full Name
1	HEM	2	Ligand/Ion	PROTOPORPHYRIN IX CONTAINING FE

Biological Unit 3 (1, 2)

No.	Name	Count	Type	Full Name
1	HEM	2	Ligand/Ion	PROTOPORPHYRIN IX CONTAINING FE

Asymmetric Unit (4, 4)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	TYR A:42 , PHE A:43 , HIS A:45 , HIS A:58 , LYS A:61 , LEU A:83 , HIS A:87 , LEU A:91 , ASN A:97 , PHE A:98 , HOH A:147 , LYS C:16 , ASP C:116	BINDING SITE FOR RESIDUE HEM A 142
2	AC2	SOFTWARE	PHE B:41 , PHE B:42 , HIS B:44 , HIS B:63 , LYS B:66 , SER B:70 , PHE B:71 , HIS B:92 , LEU B:96 , ASN B:102 , PHE B:103 , LEU B:106 , LEU B:141 , HOH B:151	BINDING SITE FOR RESIDUE HEM B 147
3	AC3	SOFTWARE	TYR C:42 , HIS C:45 , HIS C:58 , LYS C:61 , LEU C:83 , HIS C:87 , LEU C:91 , ASN C:97 , PHE C:98 , LEU C:101 , HOH C:150	BINDING SITE FOR RESIDUE HEM C 142
4	AC4	SOFTWARE	PHE D:41 , PHE D:42 , HIS D:44 , PHE D:45 , HIS D:63 , LYS D:66 , SER D:70 , HIS D:92 , LEU D:96 , ASN D:102 , LEU D:106 , HOH D:150	BINDING SITE FOR RESIDUE HEM D 147

(no "SS Bond" information available for 2QU0)

(no "Cis Peptide Bond" information available for 2QU0)

Asymmetric Unit (10, 20)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
01	UniProt	VAR_HBA_SHEEP_001 *	G	16	D	HBA_SHEEP	---	---	A/C	G	15	D
02	UniProt	VAR_HBA_SHEEP_002 *	G	20	S	HBA_SHEEP	---	---	A/C	G	19	S
03	UniProt	VAR_HBB_SHEEP_001 *	N	49	S	HBB_SHEEP	---	---	B/D	N	50	S
04	UniProt	VAR_HBB_SHEEP_002 *	P	57	A	HBB_SHEEP	---	---	B/D	P	58	A
05	UniProt	VAR_HBA_SHEEP_003 *	D	76	Y	HBA_SHEEP	---	---	A/C	D	75	Y
06	UniProt	VAR_HBA_SHEEP_004 *	L	114	H	HBA_SHEEP	---	---	A/C	L	113	H
07	UniProt	VAR_HBA_SHEEP_005 *	N	116	S	HBA_SHEEP	---	---	A/C	N	115	S
08	UniProt	VAR_HBB_SHEEP_003 *	N	119	S	HBB_SHEEP	---	---	B/D	N	120	S
09	UniProt	VAR_HBB_SHEEP_004 *	D	128	E	HBB_SHEEP	---	---	B/D	D	129	E
10	UniProt	VAR_HBB_SHEEP_005 *	K	143	R	HBB_SHEEP	---	---	B/D	K	144	R
	* ID not provided by source

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Biological Unit 1 (10, 20)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
01	UniProt	VAR_HBA_SHEEP_001 *	G	16	D	HBA_SHEEP	---	---	A/C	G	15	D
02	UniProt	VAR_HBA_SHEEP_002 *	G	20	S	HBA_SHEEP	---	---	A/C	G	19	S
03	UniProt	VAR_HBB_SHEEP_001 *	N	49	S	HBB_SHEEP	---	---	B/D	N	50	S
04	UniProt	VAR_HBB_SHEEP_002 *	P	57	A	HBB_SHEEP	---	---	B/D	P	58	A
05	UniProt	VAR_HBA_SHEEP_003 *	D	76	Y	HBA_SHEEP	---	---	A/C	D	75	Y
06	UniProt	VAR_HBA_SHEEP_004 *	L	114	H	HBA_SHEEP	---	---	A/C	L	113	H
07	UniProt	VAR_HBA_SHEEP_005 *	N	116	S	HBA_SHEEP	---	---	A/C	N	115	S
08	UniProt	VAR_HBB_SHEEP_003 *	N	119	S	HBB_SHEEP	---	---	B/D	N	120	S
09	UniProt	VAR_HBB_SHEEP_004 *	D	128	E	HBB_SHEEP	---	---	B/D	D	129	E
10	UniProt	VAR_HBB_SHEEP_005 *	K	143	R	HBB_SHEEP	---	---	B/D	K	144	R
	* ID not provided by source

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Biological Unit 2 (10, 10)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
01	UniProt	VAR_HBA_SHEEP_001 *	G	16	D	HBA_SHEEP	---	---	A	G	15	D
02	UniProt	VAR_HBA_SHEEP_002 *	G	20	S	HBA_SHEEP	---	---	A	G	19	S
03	UniProt	VAR_HBB_SHEEP_001 *	N	49	S	HBB_SHEEP	---	---	B	N	50	S
04	UniProt	VAR_HBB_SHEEP_002 *	P	57	A	HBB_SHEEP	---	---	B	P	58	A
05	UniProt	VAR_HBA_SHEEP_003 *	D	76	Y	HBA_SHEEP	---	---	A	D	75	Y
06	UniProt	VAR_HBA_SHEEP_004 *	L	114	H	HBA_SHEEP	---	---	A	L	113	H
07	UniProt	VAR_HBA_SHEEP_005 *	N	116	S	HBA_SHEEP	---	---	A	N	115	S
08	UniProt	VAR_HBB_SHEEP_003 *	N	119	S	HBB_SHEEP	---	---	B	N	120	S
09	UniProt	VAR_HBB_SHEEP_004 *	D	128	E	HBB_SHEEP	---	---	B	D	129	E
10	UniProt	VAR_HBB_SHEEP_005 *	K	143	R	HBB_SHEEP	---	---	B	K	144	R
	* ID not provided by source

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Biological Unit 3 (10, 10)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
01	UniProt	VAR_HBA_SHEEP_001 *	G	16	D	HBA_SHEEP	---	---	C	G	15	D
02	UniProt	VAR_HBA_SHEEP_002 *	G	20	S	HBA_SHEEP	---	---	C	G	19	S
03	UniProt	VAR_HBB_SHEEP_001 *	N	49	S	HBB_SHEEP	---	---	D	N	50	S
04	UniProt	VAR_HBB_SHEEP_002 *	P	57	A	HBB_SHEEP	---	---	D	P	58	A
05	UniProt	VAR_HBA_SHEEP_003 *	D	76	Y	HBA_SHEEP	---	---	C	D	75	Y
06	UniProt	VAR_HBA_SHEEP_004 *	L	114	H	HBA_SHEEP	---	---	C	L	113	H
07	UniProt	VAR_HBA_SHEEP_005 *	N	116	S	HBA_SHEEP	---	---	C	N	115	S
08	UniProt	VAR_HBB_SHEEP_003 *	N	119	S	HBB_SHEEP	---	---	D	N	120	S
09	UniProt	VAR_HBB_SHEEP_004 *	D	128	E	HBB_SHEEP	---	---	D	D	129	E
10	UniProt	VAR_HBB_SHEEP_005 *	K	143	R	HBB_SHEEP	---	---	D	K	144	R
	* ID not provided by source

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Asymmetric Unit (1, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	GLOBIN	PS01033	Globin family profile.	HBB_SHEEP	2-145	2	B:3-146 D:3-146
1	GLOBIN	PS01033	Globin family profile.	HBA_SHEEP	3-142	2	A:2-141 C:2-141

Biological Unit 1 (1, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	GLOBIN	PS01033	Globin family profile.	HBB_SHEEP	2-145	2	B:3-146 D:3-146
1	GLOBIN	PS01033	Globin family profile.	HBA_SHEEP	3-142	2	A:2-141 C:2-141

Biological Unit 2 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	GLOBIN	PS01033	Globin family profile.	HBB_SHEEP	2-145	1	B:3-146 -
1	GLOBIN	PS01033	Globin family profile.	HBA_SHEEP	3-142	1	A:2-141 -

Biological Unit 3 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	GLOBIN	PS01033	Globin family profile.	HBB_SHEEP	2-145	1	- D:3-146
1	GLOBIN	PS01033	Globin family profile.	HBA_SHEEP	3-142	1	- C:2-141

(no "Exon" information available for 2QU0)

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_SHEEP | P68240 from UniProtKB/Swiss-Prot  Length:142

    Alignment length:141
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141 
            HBA_SHEEP     2 VLSAADKSNVKAAWGKVGGNAGAYGAEALERMFLSFPTTKTYFPHFDLSHGSAQVKGHGEKVAAALTKAVGHLDDLPGTLSDLSDLHAHKLRVDPVNFKLLSHSLLVTLACHLPNDFTPAVHASLDKFLANVSTVLTSKYR 142
               SCOP domains d2qu0a_ A: automated matches                                                                                                                  SCOP domains
               CATH domains 2qu0A00 A:1-141 Globins                                                                                                                       CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) --------------D---S-------------------------------------------------------Y-------------------------------------H-S-------------------------- SAPs(SNPs)
                PROSITE (2) -GLOBIN  PDB: A:2-141 UniProt: 3-142                                                                                                          PROSITE (2)
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2qu0 A   1 VLSAADKSNVKAAWGKVGGNAGAYGAEALERMFLSFPTTKTYFPHFDLSHGSAQVKGHGEKVAAALTKAVGHLDDLPGTLSDLSDLHAHKLRVDPVNFKLLSHSLLVTLACHLPNDFTPAVHASLDKFLANVSTVLTSKYR 141
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140

Chain B from PDB  Type:PROTEIN  Length:145
 aligned with HBB_SHEEP | P02075 from UniProtKB/Swiss-Prot  Length:145

    Alignment length:145
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140     
            HBB_SHEEP     1 MLTAEEKAAVTGFWGKVKVDEVGAEALGRLLVVYPWTQRFFEHFGDLSNADAVMNNPKVKAHGKKVLDSFSNGMKHLDDLKGTFAQLSELHCDKLHVDPENFRLLGNVLVVVLARHHGNEFTPVLQADFQKVVAGVANALAHKYH 145
               SCOP domains d2qu0b_ B: automated matches                                                                                                                      SCOP domains
               CATH domains 2qu0B00 B:2-146 Globins                                                                                                                           CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------S-------A-------------------------------------------------------------S--------E--------------R-- SAPs(SNPs)
                    PROSITE -GLOBIN  PDB: B:3-146 UniProt: 2-145                                                                                                              PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2qu0 B   2 MLTAEEKAAVTGFWGKVKVDEVGAEALGRLLVVYPWTQRFFEHFGDLSNADAVMNNPKVKAHGKKVLDSFSNGMKHLDDLKGTFAQLSELHCDKLHVDPENFRLLGNVLVVVLARHHGNEFTPVLQADFQKVVAGVANALAHKYH 146
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141

Chain C from PDB  Type:PROTEIN  Length:141
 aligned with HBA_SHEEP | P68240 from UniProtKB/Swiss-Prot  Length:142

    Alignment length:141
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141 
            HBA_SHEEP     2 VLSAADKSNVKAAWGKVGGNAGAYGAEALERMFLSFPTTKTYFPHFDLSHGSAQVKGHGEKVAAALTKAVGHLDDLPGTLSDLSDLHAHKLRVDPVNFKLLSHSLLVTLACHLPNDFTPAVHASLDKFLANVSTVLTSKYR 142
               SCOP domains d2qu0c_ C: automated matches                                                                                                                  SCOP domains
               CATH domains 2qu0C00 C:1-141 Globins                                                                                                                       CATH domains
           Pfam domains (1) -----Globin-2qu0C01 C:6-106                                                                               ----------------------------------- Pfam domains (1)
           Pfam domains (2) -----Globin-2qu0C02 C:6-106                                                                               ----------------------------------- Pfam domains (2)
         Sec.struct. author ..hhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhh......hhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) --------------D---S-------------------------------------------------------Y-------------------------------------H-S-------------------------- SAPs(SNPs)
                PROSITE (2) -GLOBIN  PDB: C:2-141 UniProt: 3-142                                                                                                          PROSITE (2)
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2qu0 C   1 VLSAADKSNVKAAWGKVGGNAGAYGAEALERMFLSFPTTKTYFPHFDLSHGSAQVKGHGEKVAAALTKAVGHLDDLPGTLSDLSDLHAHKLRVDPVNFKLLSHSLLVTLACHLPNDFTPAVHASLDKFLANVSTVLTSKYR 141
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140

Chain D from PDB  Type:PROTEIN  Length:145
 aligned with HBB_SHEEP | P02075 from UniProtKB/Swiss-Prot  Length:145

    Alignment length:145
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140     
            HBB_SHEEP     1 MLTAEEKAAVTGFWGKVKVDEVGAEALGRLLVVYPWTQRFFEHFGDLSNADAVMNNPKVKAHGKKVLDSFSNGMKHLDDLKGTFAQLSELHCDKLHVDPENFRLLGNVLVVVLARHHGNEFTPVLQADFQKVVAGVANALAHKYH 145
               SCOP domains d2qu0d_ D: automated matches                                                                                                                      SCOP domains
               CATH domains 2qu0D00 D:2-146 Globins                                                                                                                           CATH domains
           Pfam domains (1) -----Globin-2qu0D01 D:7-111                                                                                   ----------------------------------- Pfam domains (1)
           Pfam domains (2) -----Globin-2qu0D02 D:7-111                                                                                   ----------------------------------- Pfam domains (2)
         Sec.struct. author ....hhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------S-------A-------------------------------------------------------------S--------E--------------R-- SAPs(SNPs)
                    PROSITE -GLOBIN  PDB: D:3-146 UniProt: 2-145                                                                                                              PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2qu0 D   2 MLTAEEKAAVTGFWGKVKVDEVGAEALGRLLVVYPWTQRFFEHFGDLSNADAVMNNPKVKAHGKKVLDSFSNGMKHLDDLKGTFAQLSELHCDKLHVDPENFRLLGNVLVVVLARHHGNEFTPVLQADFQKVVAGVANALAHKYH 146
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141

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 '\|'

Asymmetric Unit

Classes(

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Folds(

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Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

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Class: All alpha proteins (14657)

Fold: Globin-like (1351)

Superfamily: Globin-like (1308)

Family: Globins (1157)

Protein domain: automated matches (99)

Sheep (Ovis aries) [TaxId: 9940] (1)

1a	d2qu0a_	A:
1b	d2qu0b_	B:
1c	d2qu0c_	C:
1d	d2qu0d_	D:

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Alpha (13335)

Architecture: Orthogonal Bundle (10391)

Topology: Globin-like (786)

Homologous Superfamily: Globins (743)

Sheep (Ovis aries) (1)

1a	2qu0B00	B:2-146
1b	2qu0D00	D:2-146
1c	2qu0A00	A:1-141
1d	2qu0C00	C:1-141

Asymmetric Unit

Clans(

)

Families(

)

Organisms( (-)

)

Clan: Globin (291)

Family: Globin (264)

Ovis aries (Sheep) (1)

1a	Globin-2qu0C01	C:6-106
1b	Globin-2qu0C02	C:6-106
1c	Globin-2qu0D01	D:7-111
1d	Globin-2qu0D02	D:7-111

Asymmetric Unit(hide GO term definitions)

Chain A,C (HBA_SHEEP | P68240)

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.
	GO:0005515	protein binding	Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
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,D (HBB_SHEEP | P02075)

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.

Asymmetric Unit
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(no "Cis Peptide Bonds" information available for 2qu0)

Biological Units
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	2qu0
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	HBB_SHEEP \| P02075
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(no "Entries Sharing at Least One Protein Chain" available for 2QU0)

(no "Related Entries Specified in the PDB File" available for 2QU0)

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (1, 4)

Sites (4, 4)

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (10, 20)

PROSITE Motifs (1, 4)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (1, 4)

CATH Domains (1, 4)

Pfam Domains (1, 4)

Gene Ontology (9, 17)

Visualization

Interactive Views

Still Images

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Databases

Analysis Tools

Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File