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Title :   CRYSTAL STRUCTURE OF THE SOLUBLE PART OF A MAGNESIUM TRANSPORTER

Authors :   R. Sugadev, S. K. Burley, S. Swaminathan, New York Sgx Research Cen Structural Genomics (Nysgxrc)

Date :   12 Feb 07 (Deposition) - 20 Mar 07 (Release) - 24 Oct 12 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.16

Chains :   Asym./Biol. Unit : A,B

Keywords :   Magnesium Transporter, 10001B, Structural Genomics, Psi-2, Protein Structure Initiative, Nysgxrc, New York Sgx Research Center For Structural Genomics, Transport Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   S. Ragumani, J. M. Sauder, S. K. Burley, S. Swaminathan
Structural Studies On Cytosolic Domain Of Magnesium Transporter Mgte From Enterococcus Faecalis.
Proteins V. 78 487 2010
PubMed-ID: 19787770 | Reference-DOI: 10.1002/PROT.22585

Molecule 1 - MAGNESIUM TRANSPORTER
	Atcc	:	700802
	Chains	:	A, B
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI BL21(DE3)
	Expression System Plasmid	:	PSGX3
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	469008
	Expression System Vector Type	:	PLASMID
	Fragment	:	RESIDUES 2-285
	Gene	:	MGTE, EF_2668
	Organism Scientific	:	ENTEROCOCCUS FAECALIS
	Organism Taxid	:	226185
	Strain	:	V583

		1	2
Asymmetric/Biological Unit	:	A	B

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (2, 32)

No.	Name	Count	Type	Full Name
1	MG	10	Ligand/Ion	MAGNESIUM ION
2	MSE	22	Mod. Amino Acid	SELENOMETHIONINE

Asymmetric Unit (10, 10)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	HOH A:410 , HOH A:469 , HOH A:480 , ARG B:227 , ASP B:230 , HOH B:420	BINDING SITE FOR RESIDUE MG B 400
02	AC2	SOFTWARE	ARG A:227 , ASP A:230 , HOH A:487 , HOH B:409 , HOH B:461 , HOH B:462	BINDING SITE FOR RESIDUE MG A 401
03	AC3	SOFTWARE	ASP A:102 , ALA A:140 , HOH A:470 , HOH A:471 , HOH A:472 , HOH A:481	BINDING SITE FOR RESIDUE MG A 402
04	AC4	SOFTWARE	ASP B:102 , ALA B:140 , HOH B:463 , HOH B:464 , HOH B:465	BINDING SITE FOR RESIDUE MG B 403
05	AC5	SOFTWARE	GLU B:71 , HOH B:410 , HOH B:466 , HOH B:467 , HOH B:468 , HOH B:477	BINDING SITE FOR RESIDUE MG B 404
06	AC6	SOFTWARE	TYR A:174 , TYR A:176 , ALA A:233 , PRO A:235 , HOH A:411 , HOH A:473	BINDING SITE FOR RESIDUE MG A 405
07	AC7	SOFTWARE	ASP A:98 , ASP A:251 , HOH A:413 , HOH A:423 , HOH A:425 , HOH A:430	BINDING SITE FOR RESIDUE MG A 406
08	AC8	SOFTWARE	GLU B:136 , GLU B:259 , HOH B:412 , HOH B:469	BINDING SITE FOR RESIDUE MG B 407
09	AC9	SOFTWARE	ASP B:98 , ASP B:251 , HOH B:415 , HOH B:416 , HOH B:470 , HOH B:471	BINDING SITE FOR RESIDUE MG B 408
10	BC1	SOFTWARE	GLU A:71 , HOH A:456 , HOH A:476 , HOH A:477 , HOH A:478 , HOH A:479	BINDING SITE FOR RESIDUE MG A 409

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

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

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

Asymmetric/Biological Unit (1, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CBS	PS51371	CBS domain profile.	MGTE_ENTFA	142-205 206-262	4	A:142-205 B:142-205 A:206-262 B:206-261

(no "Exon" information available for 2OUX)

Asymmetric/Biological 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:257
 aligned with MGTE_ENTFA | Q830V1 from UniProtKB/Swiss-Prot  Length:453

    Alignment length:257
                                    15        25        35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       
           MGTE_ENTFA     6 EMEEQFALLLETLKNQQMNEFRELFLALHIYEQGQFYQSLDEKDRQHLYNYLSPKELADMFDVIEEDNENMKDYLAEMRPSYAADMLAEMYTDNAVDLLNMLDKSQKAKYLSLLSSEEAGEIKELLHYEDETAGAIMTTEFVSIVANQTVRSAMYVLKNQADMAETIYYVYVVDQENHLVGVISLRDLIVNDDDTLIADILNERVISVHVGDDQEDVAQTIRDYDFLAVPVTDYDDHLLGIVTVDDIIDVIDDEAAS 262
               SCOP domains d2ouxa1 A:6-135 Magnesium transporter MgtE                                                                                        d2ouxa2 A:136-262 Magnesium transporter MgtE                                                                                    SCOP domains
               CATH domains 2ouxA01 A:6-133 MgtE N-terminal domain-like                                                                                     --------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhh.hhhhhhhhhh..hhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhh.........hhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhh.....hhhhhh.....ee....hhhhhhhhhhhhh.......eeeee.....eeeeeehhhhh......hhhhhh......ee...hhhhhhhhhhhhh..eeeee.....eeeeeehhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------CBS  PDB: A:142-205 UniProt: 142-205                            CBS  PDB: A:206-262 UniProt: 206-262                      PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2oux A   6 EmEEQFALLLETLKNQQmNEFRELFLALHIYEQGQFYQSLDEKDRQHLYNYLSPKELADmFDVIEEDNENmKDYLAEmRPSYAADmLAEmYTDNAVDLLNmLDKSQKAKYLSLLSSEEAGEIKELLHYEDETAGAImTTEFVSIVANQTVRSAmYVLKNQADmAETIYYVYVVDQENHLVGVISLRDLIVNDDDTLIADILNERVISVHVGDDQEDVAQTIRDYDFLAVPVTDYDDHLLGIVTVDDIIDVIDDEAAS 262
                             |      15       |25        35        45        55        65        75|      |85     |  95       105|      115       125       135      |145       155   |   165  |    175       185       195       205       215       225       235       245       255       
                             |              23-MSE                                    65-MSE     76-MSE 83-MSE  91-MSE        106-MSE                             142-MSE          159-MSE  168-MSE                                                                                          
                             7-MSE                                                                                  95-MSE

Chain B from PDB  Type:PROTEIN  Length:256
 aligned with MGTE_ENTFA | Q830V1 from UniProtKB/Swiss-Prot  Length:453

    Alignment length:256
                                    15        25        35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245       255      
           MGTE_ENTFA     6 EMEEQFALLLETLKNQQMNEFRELFLALHIYEQGQFYQSLDEKDRQHLYNYLSPKELADMFDVIEEDNENMKDYLAEMRPSYAADMLAEMYTDNAVDLLNMLDKSQKAKYLSLLSSEEAGEIKELLHYEDETAGAIMTTEFVSIVANQTVRSAMYVLKNQADMAETIYYVYVVDQENHLVGVISLRDLIVNDDDTLIADILNERVISVHVGDDQEDVAQTIRDYDFLAVPVTDYDDHLLGIVTVDDIIDVIDDEAA 261
               SCOP domains d2ouxb1 B:6-135 Magnesium transporter MgtE                                                                                        d2ouxb2 B:136-261 Magnesium transporter MgtE                                                                                   SCOP domains
               CATH domains 2ouxB01 B:6-133 MgtE N-terminal domain-like                                                                                     -------------------------------------------------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) ---------------------------MgtE_N-2ouxB01 B:33-136                                                                                 -----------------------------------------------------------------CBS-2ouxB03 B:202-258                                    --- Pfam domains (1)
           Pfam domains (2) ---------------------------MgtE_N-2ouxB02 B:33-136                                                                                 -----------------------------------------------------------------CBS-2ouxB04 B:202-258                                    --- Pfam domains (2)
           Pfam domains (3) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------CBS-2ouxB05 B:202-258                                    --- Pfam domains (3)
           Pfam domains (4) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------CBS-2ouxB06 B:202-258                                    --- Pfam domains (4)
         Sec.struct. author hhhhhhhhhhhhhhh.hhhhhhhhhh..hhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhh.hhhhhhhhhh..hhhhhhhhhh..hhhhhhhhhhh.hhhhhhhhhhhhh....hhhhhh.....ee....hhhhhhhhhhhhh.......eeeee.....eeeeeehhhhhh.....hhhhhh......ee...hhhhhhhhhhhhh..eeeee.....eeeeeehhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------CBS  PDB: B:142-205 UniProt: 142-205                            CBS  PDB: B:206-261 UniProt: 206-262                     PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2oux B   6 EmEEQFALLLETLKNQQmNEFRELFLALHIYEQGQFYQSLDEKDRQHLYNYLSPKELADmFDVIEEDNENmKDYLAEmRPSYAADmLAEmYTDNAVDLLNmLDKSQKAKYLSLLSSEEAGEIKELLHYEDETAGAImTTEFVSIVANQTVRSAmYVLKNQADmAETIYYVYVVDQENHLVGVISLRDLIVNDDDTLIADILNERVISVHVGDDQEDVAQTIRDYDFLAVPVTDYDDHLLGIVTVDDIIDVIDDEAA 261
                             |      15       |25        35        45        55        65        75|      |85     |  95       105|      115       125       135      |145       155   |   165  |    175       185       195       205       215       225       235       245       255      
                             7-MSE          23-MSE                                    65-MSE     76-MSE 83-MSE  91-MSE        106-MSE                             142-MSE          159-MSE  168-MSE                                                                                         
                                                                                                                    95-MSE

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/Biological Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: All alpha proteins (14657)

Fold: alpha-alpha superhelix (690)

Superfamily: MgtE N-terminal domain-like (4)

Family: MgtE N-terminal domain-like (3)

Protein domain: Magnesium transporter MgtE (3)

Enterococcus faecalis [TaxId: 1351] (1)

1a	d2ouxa1	A:6-135
1b	d2ouxb1	B:6-135

Class: Alpha and beta proteins (a+b) (23004)

Fold: CBS-domain pair (75)

Superfamily: CBS-domain pair (75)

Family: CBS-domain pair (50)

Protein domain: Magnesium transporter MgtE (3)

Enterococcus faecalis [TaxId: 1351] (1)

2a	d2ouxa2	A:136-262
2b	d2ouxb2	B:136-261

Asymmetric/Biological Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Alpha (13335)

Architecture: Alpha Horseshoe (399)

Topology: MgtE N-terminal fold (1)

Homologous Superfamily: MgtE N-terminal domain-like (1)

Enterococcus faecalis v583. Organism_taxid: 226185. Strain: v583. (1)

1a	2ouxA01	A:6-133
1b	2ouxB01	B:6-133

Asymmetric/Biological Unit

Clans(

)

Families(

)

Organisms( (-)

)

Clan: FliG (8)

Family: MgtE_N (6)

Enterococcus faecalis (Streptococcus faecalis) (1)

1a	MgtE_N-2ouxB01	B:33-136
1b	MgtE_N-2ouxB02	B:33-136

Clan: no clan defined [family: CBS] (51)

Family: CBS (51)

Enterococcus faecalis (Streptococcus faecalis) (1)

2a	CBS-2ouxB03	B:202-258
2b	CBS-2ouxB04	B:202-258
2c	CBS-2ouxB05	B:202-258
2d	CBS-2ouxB06	B:202-258

Asymmetric/Biological Unit(hide GO term definitions)

Chain A,B (MGTE_ENTFA | Q830V1)

molecular function
	GO:0008324	cation transmembrane transporter activity	Enables the transfer of cation from one side of the membrane to the other.
	GO:0015095	magnesium ion transmembrane transporter activity	Enables the transfer of magnesium (Mg) ions from one side of a membrane to the other.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
biological process
	GO:0098655	cation transmembrane transport	A process in which a cation is transported from one side of a membrane to the other by means of some agent such as a transporter or pore.
	GO:0006812	cation transport	The directed movement of cations, atoms or small molecules with a net positive charge, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
	GO:1903830	magnesium ion transmembrane transport	The directed movement of magnesium ion across a membrane.
	GO:0015693	magnesium ion transport	The directed movement of magnesium (Mg) ions 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.

Asymmetric/Biological Unit
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Description

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Chains, Units

Ligands, Modified Residues, Ions (2, 32)

Sites (10, 10)

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

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