1U4E - JenaLib

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Title :   CRYSTAL STRUCTURE OF CYTOPLASMIC DOMAINS OF GIRK1 CHANNEL

Authors :   S. Pegan, C. Arrabit, W. Zhou, W. Kwiatkowski, P. A. Slesinger, S. Choe

Date :   24 Jul 04 (Deposition) - 08 Mar 05 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.09

Chains :   Asym. Unit : A
Biol. Unit 1: A  (4x)

Keywords :   Metal Transport (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   S. Pegan, C. Arrabit, W. Zhou, W. Kwiatkowski, A. Collins, P. A. Slesinger, S. Choe
Cytoplasmic Domain Structures Of Kir2. 1 And Kir3. 1 Show Sites For Modulating Gating And Rectification
Nat. Neurosci. V. 8 279 2005
PubMed-ID: 15723059 | Reference-DOI: 10.1038/NN1411

Molecule 1 - G PROTEIN-ACTIVATED INWARD RECTIFIER POTASSIUM CHANNEL 1
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI BL21(DE3)
	Expression System Plasmid	:	PHIS8
	Expression System Strain	:	BL21 (DE3)
	Expression System Taxid	:	469008
	Expression System Vector Type	:	PLASMID
	Fragment	:	CYTOPLASMIC DOMAIN
	Gene	:	KCNJ3, GIRK1, KGA
	Organism Common	:	HOUSE MOUSE
	Organism Scientific	:	MUS MUSCULUS
	Organism Taxid	:	10090
	Synonym	:	GIRK1

		1
Asymmetric Unit	:	A
Biological Unit 1 (4x)	:	A

Summary Information (see also Sequences/Alignments below)

(no "Ligand,Modified Residues,Ions" information available for 1U4E)

(no "Site" information available for 1U4E)

(no "SS Bond" information available for 1U4E)

(no "Cis Peptide Bond" information available for 1U4E)

(no "SAP(SNP)/Variant" information available for 1U4E)

(no "PROSITE Motif" information available for 1U4E)

Asymmetric Unit (3, 3)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.1	ENSRNOT00000007335	1	ENSRNOE00000051326	chr3:37068553-37069431	879	KCNJ3_RAT	1-234	234	1	A:42-234 (gaps)	193
1.2	ENSRNOT00000007335	2	ENSRNOE00000235482	chr3:37078339-37078555	217	KCNJ3_RAT	235-307	73	1	A:235-307	73
1.3	ENSRNOT00000007335	3	ENSRNOE00000051882	chr3:37256141-37258387	2247	KCNJ3_RAT	307-501	195	1	A:307-370	64

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:200
 aligned with KCNJ3_MOUSE | P63250 from UniProtKB/Swiss-Prot  Length:501

    Alignment length:329
                                    51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361         
          KCNJ3_MOUSE    42 KRQRFVDKNGRCNVQHGNLGSETSRYLSDLFTTLVDLKWRWNLFIFILTYTVAWLFMASMWWVIAYTRGDLNKAHVGNYTPCVANVYNFPSAFLFFIETEATIGYGYRYITDKCPEGIILFLFQSILGSIVDAFLIGCMFIKMSQPKKRAETLMFSEHAVISMRDGKLTLMFRVGNLRNSHMVSAQIRCKLLKSRQTPEGEFLPLDQLELDVGFSTGADQLFLVSPLTICHVIDAKSPFYDLSQRSMQTEQFEVVVILEGIVETTGMTCQARTSYTEDEVLWGHRFFPVISLEEGFFKVDYSQFHATFEVPTPPYSVKEQEEMLLMSSP 370
               SCOP domains d1u4ea_ A: automate                                                                                                                                 d matches                                                                                                                                                                             SCOP domains
               CATH domains 1u4eA00 A:42-370 G                                                                                                                                  protein-activated inward rectifier potassium channel 1                                                                                                                                CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .............eeee..---------------------------------------------------------------------------------------------------------------------------------....eee...eeeeee..eeeeeeeeee.....eeeeeeeeeeeeeee.....eeeeeeee.................eeeeee..........hhhhhh....eeeeeeeeee.....eeeeeeeee...eee.eee...eeee..eeeee.hhh..eee......hhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1u4e A  42 KRQRFVDKNGRCNVQHGNL---------------------------------------------------------------------------------------------------------------------------------RAETLMFSEHAVISMRDGKLTLMFRVGNLRNSHMVSAQIRCKLLKSRQTPEGEFLPLDQLELDVGFSTGADQLFLVSPLTICHVIDAKSPFYDLSQRSMQTEQFEVVVILEGIVETTGMTCQARTSYTEDEVLWGHRFFPVISLEEGFFKVDYSQFHATFEVPTPPYSVKEQEEMLLMSSP 370
                                    51        |-         -         -         -         -         -         -         -         -         -         -         -         -       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361         
                                             60                                                                                                                               190

Chain A from PDB  Type:PROTEIN  Length:200
 aligned with KCNJ3_RAT | P63251 from UniProtKB/Swiss-Prot  Length:501

    Alignment length:329
                                    51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361         
            KCNJ3_RAT    42 KRQRFVDKNGRCNVQHGNLGSETSRYLSDLFTTLVDLKWRWNLFIFILTYTVAWLFMASMWWVIAYTRGDLNKAHVGNYTPCVANVYNFPSAFLFFIETEATIGYGYRYITDKCPEGIILFLFQSILGSIVDAFLIGCMFIKMSQPKKRAETLMFSEHAVISMRDGKLTLMFRVGNLRNSHMVSAQIRCKLLKSRQTPEGEFLPLDQLELDVGFSTGADQLFLVSPLTICHVIDAKSPFYDLSQRSMQTEQFEVVVILEGIVETTGMTCQARTSYTEDEVLWGHRFFPVISLEEGFFKVDYSQFHATFEVPTPPYSVKEQEEMLLMSSP 370
               SCOP domains d1u4ea_ A: automate                                                                                                                                 d matches                                                                                                                                                                             SCOP domains
               CATH domains 1u4eA00 A:42-370 G                                                                                                                                  protein-activated inward rectifier potassium channel 1                                                                                                                                CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .............eeee..---------------------------------------------------------------------------------------------------------------------------------....eee...eeeeee..eeeeeeeeee.....eeeeeeeeeeeeeee.....eeeeeeee.................eeeeee..........hhhhhh....eeeeeeeeee.....eeeeeeeee...eee.eee...eeee..eeeee.hhh..eee......hhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.1  PDB: A:42-234 (gaps) UniProt: 1-234 [INCOMPLETE]                                                                                                                                       Exon 1.2  PDB: A:235-307 UniProt: 235-307                                --------------------------------------------------------------- Transcript 1 (1)
           Transcript 1 (2) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.3  PDB: A:307-370 UniProt: 307-501 [INCOMPLETE]           Transcript 1 (2)
                 1u4e A  42 KRQRFVDKNGRCNVQHGNL---------------------------------------------------------------------------------------------------------------------------------RAETLMFSEHAVISMRDGKLTLMFRVGNLRNSHMVSAQIRCKLLKSRQTPEGEFLPLDQLELDVGFSTGADQLFLVSPLTICHVIDAKSPFYDLSQRSMQTEQFEVVVILEGIVETTGMTCQARTSYTEDEVLWGHRFFPVISLEEGFFKVDYSQFHATFEVPTPPYSVKEQEEMLLMSSP 370
                                    51        |-         -         -         -         -         -         -         -         -         -         -         -         -       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361         
                                             60                                                                                                                               190

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( (-)

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Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: All beta proteins (24004)

Fold: Immunoglobulin-like beta-sandwich (7299)

Superfamily: E set domains (509)

Family: Cytoplasmic domain of inward rectifier potassium channel (19)

Protein domain: automated matches (13)

Mouse (Mus musculus) [TaxId: 10090] (9)

d1u4ea_

Asymmetric Unit

Classes(

)

Architectures( (-)

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Topologies( (-)

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Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Beta (13760)

Architecture: Sandwich (5577)

Topology: Immunoglobulin-like (3897)

Homologous Superfamily: G protein-activated inward rectifier potassium channel 1 (21)

House mouse (Mus musculus) (5)

1u4eA00

A:42-370

(no "Pfam Domain" information available for 1U4E)

Asymmetric Unit(hide GO term definitions)

Chain A (KCNJ3_RAT | P63251)

molecular function
	GO:0015467	G-protein activated inward rectifier potassium channel activity	Enables the transmembrane transfer of a potassium ion by an inwardly-rectifying voltage-gated channel, where the inward rectification is due to a voltage-dependent block of the channel pore by a G protein. An inwardly rectifying current-voltage relation is one where at any given driving force the inward flow of K+ ions exceeds the outward flow for the opposite driving force.
	GO:0005242	inward rectifier potassium channel activity	Enables the transmembrane transfer of a potassium ion by an inwardly-rectifying voltage-gated channel. An inwardly rectifying current-voltage relation is one where at any given driving force the inward flow of K+ ions exceeds the outward flow for the opposite driving force. The inward-rectification is due to a voltage-dependent block of the channel pore by a specific ligand or ligands, and as a result the macroscopic conductance depends on the difference between membrane voltage and the K+ equilibrium potential rather than on membrane voltage itself.
	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).
	GO:0005244	voltage-gated ion channel activity	Enables the transmembrane transfer of an ion by a voltage-gated channel. An ion is an atom or group of atoms carrying an electric charge by virtue of having gained or lost one or more electrons. 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:0010107	potassium ion import	The directed movement of potassium ions into a cell or organelle.
	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:0034765	regulation of ion transmembrane transport	Any process that modulates the frequency, rate or extent of the directed movement of ions from one side of a membrane to the other.
	GO:0051602	response to electrical stimulus	Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an electrical stimulus.
	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:0030315	T-tubule	Invagination of the plasma membrane of a muscle cell that extends inward from the cell surface around each myofibril. The ends of T-tubules make contact with the sarcoplasmic reticulum membrane.
	GO:0009986	cell surface	The external part of the cell wall and/or plasma membrane.
	GO:0009897	external side of plasma membrane	The leaflet of the plasma membrane that faces away from the cytoplasm and any proteins embedded or anchored in it or attached to its surface.
	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:0005887	integral component of plasma membrane	The component of the plasma 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.

Chain A (KCNJ3_MOUSE | P63250)

molecular function
	GO:0015467	G-protein activated inward rectifier potassium channel activity	Enables the transmembrane transfer of a potassium ion by an inwardly-rectifying voltage-gated channel, where the inward rectification is due to a voltage-dependent block of the channel pore by a G protein. An inwardly rectifying current-voltage relation is one where at any given driving force the inward flow of K+ ions exceeds the outward flow for the opposite driving force.
	GO:0005242	inward rectifier potassium channel activity	Enables the transmembrane transfer of a potassium ion by an inwardly-rectifying voltage-gated channel. An inwardly rectifying current-voltage relation is one where at any given driving force the inward flow of K+ ions exceeds the outward flow for the opposite driving force. The inward-rectification is due to a voltage-dependent block of the channel pore by a specific ligand or ligands, and as a result the macroscopic conductance depends on the difference between membrane voltage and the K+ equilibrium potential rather than on membrane voltage itself.
	GO:0005244	voltage-gated ion channel activity	Enables the transmembrane transfer of an ion by a voltage-gated channel. An ion is an atom or group of atoms carrying an electric charge by virtue of having gained or lost one or more electrons. 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:0010107	potassium ion import	The directed movement of potassium ions into a cell or organelle.
	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:0034765	regulation of ion transmembrane transport	Any process that modulates the frequency, rate or extent of the directed movement of ions from one side of a membrane to the other.
	GO:0051602	response to electrical stimulus	Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an electrical stimulus.
	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:0030315	T-tubule	Invagination of the plasma membrane of a muscle cell that extends inward from the cell surface around each myofibril. The ends of T-tubules make contact with the sarcoplasmic reticulum membrane.
	GO:0009986	cell surface	The external part of the cell wall and/or plasma membrane.
	GO:0009897	external side of plasma membrane	The leaflet of the plasma membrane that faces away from the cytoplasm and any proteins embedded or anchored in it or attached to its surface.
	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:0005887	integral component of plasma membrane	The component of the plasma 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.

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	KCNJ3_RAT \| P63251
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UniProtKB/Swiss-Prot
	KCNJ3_MOUSE \| P63250	:	1n9p 2qks 3k6n
	KCNJ3_RAT \| P63251	:	1n9p

1n9p	THE SAME PROTEIN WITH SOME DIFFERENT LOCAL CONFORMATIONS
1p7b	THE CYTOPLASMIC DOMAIN OF KIRBAC1.1 CHANNEL IS HOMOLOGOUS TO THE ONE OF GIRK CHANNEL

Description

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Ligands, Modified Residues, Ions (0, 0)

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Exons (3, 3)

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SCOP Domains (1, 1)

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