2HFE - JenaLib

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Title :   RB+ COMPLEX OF A K CHANNEL WITH AN AMIDE TO ESTER SUBSTITUTION IN THE SELECTIVITY FILTER

Authors :   F. I. Valiyaveetil, R. Mackinnon, T. W. Muir

Date :   23 Jun 06 (Deposition) - 12 Sep 06 (Release) - 16 Nov 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.25

Chains :   Asym. Unit : A,B,C,D
Biol. Unit 1: A,B,C,D  (4x)

Keywords :   Channel, Semi-Synthetic, Ester, Membrane Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   F. I. Valiyaveetil, M. Sekedat, R. Mackinnon, T. W. Muir
Structural And Functional Consequences Of An Amide-To-Ester Substitution In The Selectivity Filter Of A Potassium Channel.
J. Am. Chem. Soc. V. 128 11591 2006
PubMed-ID: 16939283 | Reference-DOI: 10.1021/JA0631955

Molecule 1 - FAB HEAVY CHAIN
	Cell Line	:	HYBRIDOMA CELL LINE
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Taxid	:	562
	Organism Common	:	HOUSE MOUSE
	Organism Scientific	:	MUS MUSCULUS
	Organism Taxid	:	10090

Molecule 2 - FAB LIGHT CHAIN
	Cell Line	:	HYBRIDOMA CELL LINE
	Chains	:	B
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Taxid	:	562
	Organism Common	:	HOUSE MOUSE
	Organism Scientific	:	MUS MUSCULUS
	Organism Taxid	:	10090

Molecule 3 - KCSA CHANNEL
	Chains	:	C
	Engineered	:	YES
	Fragment	:	RESIDUES 1-79
	Other Details	:	THE KCSA PEPTIDE WAS SYNTHESISED BY THE EXPRESSED PROTEIN LIGATION REACTION BETWEEN A RECOMBINANT PEPTIDE THIOESTER AND A SYNTHETIC PEPTIDE CONSISTING OF AN N-TERMINAL CYSTEINE
	Synthetic	:	YES

Molecule 4 - KCSA CHANNEL
	Chains	:	D
	Engineered	:	YES
	Fragment	:	RESIDUES 80-122
	Other Details	:	THE KCSA PEPTIDE WAS SYNTHESISED BY THE EXPRESSED PROTEIN LIGATION REACTION BETWEEN A RECOMBINANT PEPTIDE THIOESTER AND A SYNTHETIC PEPTIDE CONSISTING OF AN N-TERMINAL CYSTEINE
	Synthetic	:	YES

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

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (3, 7)

No.	Name	Count	Type	Full Name
1	B3H	1	Ligand/Ion	(2S)-2-(BUTYRYLOXY)-3-HYDROXYPROPYL NONANOATE
2	GOA	1	Ligand/Ion	GLYCOLIC ACID
3	RB	5	Ligand/Ion	RUBIDIUM ION

Biological Unit 1 (2, 8)

No.	Name	Count	Type	Full Name
1	B3H	4	Ligand/Ion	(2S)-2-(BUTYRYLOXY)-3-HYDROXYPROPYL NONANOATE
2	GOA	4	Ligand/Ion	GLYCOLIC ACID
3	RB	-1	Ligand/Ion	RUBIDIUM ION

Asymmetric Unit (6, 6)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	TYR C:78	BINDING SITE FOR RESIDUE RB C 201
2	AC2	SOFTWARE	VAL C:76 , GLY C:77 , RB C:203	BINDING SITE FOR RESIDUE RB C 202
3	AC3	SOFTWARE	THR C:75 , VAL C:76 , RB C:202 , RB C:204	BINDING SITE FOR RESIDUE RB C 203
4	AC4	SOFTWARE	THR C:75 , RB C:203	BINDING SITE FOR RESIDUE RB C 204
5	AC5	SOFTWARE	GLY C:77 , TYR C:78 , ASP D:80 , LEU D:81 , TYR D:82	BINDING SITE FOR RESIDUE GOA C 79
6	AC6	SOFTWARE	HOH B:253 , PRO C:63 , CYS C:70 , LEU D:86 , ARG D:89 , LEU D:90 , VAL D:93	BINDING SITE FOR RESIDUE B3H D 301

Asymmetric Unit

No.	Residues
1	A:22	-	A:96
2	A:145	-	A:200
3	B:23	-	B:88
4	B:134	-	B:194

Asymmetric Unit

No.	Residues
1	Phe A:151	-	Pro A:152
2	Glu A:153	-	Pro A:154
3	Trp A:193	-	Pro A:194
4	Ser B:7	-	Pro B:8
5	Trp B:94	-	Pro B:95
6	Tyr B:140	-	Pro B:141

(no "SAP(SNP)/Variant" information available for 2HFE)

(no "PROSITE Motif" information available for 2HFE)

(no "Exon" information available for 2HFE)

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:219
 aligned with Q569B4_RAT | Q569B4 from UniProtKB/TrEMBL  Length:468

    Alignment length:225
                                                                                       79                                                                                                                                                                    
                                                                                     78 |                                                                                                                                                                    
                                    29        39        49        59        69        |-|       88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238     
           Q569B4_RAT    20 EVQILETGGGLVKPGGSLRLSCATSGFNFNDYFMNWVRQAPGKGLEWVVQIRNKNYNYG-TYYAESLEGRVTISRDDSKSSVYLQVTSFRPEDTAIYYCTRSRPYYGYNYFDYWGQGVMVTVSSAETTAPSVYPLAPGTALKSNSMVTLGCLVKGYFPEPVTVTWNSGALSSGVHTFPAVLQSGLYTLTSSVTVPSSTWPSQTVTCNVAHPASSTKVDKKIVPRN 243
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 2hfeA01 A:1-118 Immunoglobulins                                                                                             2hfeA02 A:119-217 Immunoglobulins                                                                  -- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...ee...eeee.....eeeeeee........eeeeeee.....eeeeeee..---....eee.......eeeeee....eeeeee...hhhhheeeeeeee.---......ee...eeeee........eeeee..........eeeeeeeeeee.....eeee........eee...ee....eeeeeeeeee.hhh.....eeeeehhhhh..eeee..... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2hfe A   1 QVQLQQPGAELVKPGASVKLSCKASGYTFTSDWIHWVKQRPGHGLEWIGEIIP---SYGRANYNEKIQKKATLTADKSSSTAFMQLSSLTSEDSAVYYCARER---GDGYFAVWGAGTTVTVSSAKTTPPSVYPLAPGSAAQTNSMVTLGCLVKGYFPEPVTVTWNSGSLSSGVHTFPAVLQSDLYTLSSSVTVPSSSWPSETVTCNVAHPASSTKVDKKIVPRD 219
                                    10        20        30        40        50  |   | 57        67        77        87        97  |   |104       114       124       134       144       154       164       174       184       194       204       214     
                                                                               53  54                                           100 101

Chain B from PDB  Type:PROTEIN  Length:211
                                                                                                                                                                                                                                                   
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 2hfeB01 B:1-108 Immunoglobulins                                                                             2hfeB02 B:109-211 Immunoglobulins                                                                       CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eee...eeee.....eeeeeee.......eeeeee......eeeee...ee.......eeeeee..eeeeee...hhhhh.eeeeee......ee...eeeee.......eeeee..hhhhhhhh.eeeeeeeeee.....eeeeee..eee...eeeee.........eeeeeeeeehhhhhhh..eeeeeee.......eeeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2hfe B   1 DILLTQSPAILSVSPGERVSFSCRASQSIGTDIHWYQQRTNGSPRLLIKYASESISGIPSRFSGSGSGTDFTLSINSVESEDIANYYCQQSNRWPFTFGSGTKLEIKRADAAPTVSIFPPSSEQLTSGGASVVCFLNNFYPKDINVKWKIDGSERQNGVLNSWTDQDSKDSTYSMSSTLTLTKDEYERHNSYTCEATHKTSTSPIVKSFNR 211
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210

Chain C from PDB  Type:PROTEIN  Length:57
 aligned with KCSA_STRCO | P0A333 from UniProtKB/Swiss-Prot  Length:160

    Alignment length:57
                                    31        41        51        61        71       
           KCSA_STRCO    22 SALHWRAAGAATVLLVIVLLAGSYLAVLAERGAPGAQLITYPRALWWSVETATTVGY  78
               SCOP domains d2hfec1 C:22-78 Potassium channel protein                 SCOP domains
               CATH domains 2hfeC00 C:22-78  [code=1.10.287.70, no name defined]      CATH domains
               Pfam domains --------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------- Transcript
                 2hfe C  22 SALHWRAAGAATVLLVIVLLAGSYLAVLAERGAPGAQLITYPRALWWACETATTVGY  78
                                    31        41        51        61        71

Chain D from PDB  Type:PROTEIN  Length:43
 aligned with KCSA_STRCO | P0A333 from UniProtKB/Swiss-Prot  Length:160

    Alignment length:43
                                    89        99       109       119   
           KCSA_STRCO    80 DLYPVTLWGRLVAVVVMVAGITSFGLVTAALATWFVGREQERR 122
               SCOP domains ------d2hfed1 D:86-119                  --- SCOP domains
               CATH domains 2hfeD00 D:80-122                            CATH domains
               Pfam domains ------------------------------------------- Pfam domains
         Sec.struct. author ........................................... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------- PROSITE
                 Transcript ------------------------------------------- Transcript
                 2hfe D  80 DLYPVTLWGRLVAVVVMVAGITSFGLVTAALATWFVGREQERR 122
                                    89        99       109       119

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(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: Membrane and cell surface proteins and peptides (2046)

Fold: Voltage-gated potassium channels (62)

Superfamily: Voltage-gated potassium channels (62)

Family: Voltage-gated potassium channels (61)

Protein domain: Potassium channel protein (37)

Streptomyces coelicolor [TaxId: 1902] (17)

1a	d2hfec1	C:22-78
1b	d2hfed1	D:86-119

(no "Pfam Domain" information available for 2HFE)

Asymmetric Unit(hide GO term definitions)

Chain A (Q569B4_RAT | Q569B4)

Chain C,D (KCSA_STRCO | P0A333)

molecular function
	GO:0005249	voltage-gated potassium channel activity	Enables the transmembrane transfer of a potassium ion by a voltage-gated channel. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded.
biological process
	GO:0006811	ion transport	The directed movement of charged atoms or small charged molecules into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
	GO:0071805	potassium ion transmembrane transport	A process in which a potassium ion is transported from one side of a membrane to the other.
	GO:0006813	potassium ion transport	The directed movement of potassium ions (K+) 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:0016021	integral component of membrane	The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
	GO:0016020	membrane	A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
	GO:0005886	plasma membrane	The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
	GO:0008076	voltage-gated potassium channel complex	A protein complex that forms a transmembrane channel through which potassium ions may cross a cell membrane in response to changes in membrane potential.

Asymmetric Unit
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	Ligands, Modified Residues, Ions
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	Cis Peptide Bonds
		Glu A:153 - Pro A:154	[ RasMol ]
		Phe A:151 - Pro A:152	[ RasMol ]
		Ser B:7 - Pro B:8	[ RasMol ]
		Trp A:193 - Pro A:194	[ RasMol ]
		Trp B:94 - Pro B:95	[ RasMol ]
		Tyr B:140 - Pro B:141	[ RasMol ]

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	Q569B4_RAT \| Q569B4
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UniProtKB/Swiss-Prot
	KCSA_STRCO \| P0A333	:	1s33 1s5h
UniProtKB/TrEMBL
	Q569B4_RAT \| Q569B4	:	2h8p 2hg5 2j4w

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (3, 7)

Sites (6, 6)

SS Bonds (4, 4)

Cis Peptide Bonds (6, 6)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

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SCOP Domains (1, 2)

CATH Domains (3, 6)

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Gene Ontology (9, 9)

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