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Title :   CRYSTAL STRUCTURE OF MCP_N AND CACHE DOMAINS OF METHYL-ACCEPTING CHEMOTAXIS PROTEIN FROM VIBRIO CHOLERAE

Authors :   Y. Patskovsky, S. Ozyurt, J. Freeman, S. Hu, D. Smith, S. R. Wasserman, J. M. Sauder, S. K. Burley, S. C. Almo, New York Sgx Research Center For Structural Genomics (Nysgxrc)

Date :   11 Feb 08 (Deposition) - 19 Feb 08 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.50

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

Keywords :   Structural Genomics, Unknown Function, Uncharacterized Protein, Predicted Chemotaxis Protein, Protein Structure Initiative, Psi-2, New York Sgx Research Center For Structural Genomics, Nysgxrc (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   Y. Patskovsky, S. Ozyurt, J. Freeman, S. Hu, D. Smith, K. Bain, S. R. Wasserman, J. M. Sauder, S. K. Burley, S. C. Almo
Crystal Structure Of Mcp_n And Cache N-Terminal Domains Of Methyl-Accepting Chemotaxis Protein From Vibrio Cholerae.
To Be Published
PubMed: search
(for further references see the PDB file header)

Molecule 1 - METHYL-ACCEPTING CHEMOTAXIS PROTEIN
	Atcc	:	39315
	Chains	:	A, B
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	B-PSGX4(BS)
	Expression System Taxid	:	562
	Expression System Vector	:	PET
	Expression System Vector Type	:	PLASMID
	Gene	:	VCA0923
	Organism Scientific	:	VIBRIO CHOLERAE O1 BIOVAR ELTOR STR. N16961
	Organism Taxid	:	243277
	Strain	:	EL TOR INABA N16961 / SEROTYPE O1

		1	2
Asymmetric/Biological Unit	:	A	B

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (3, 8)

No.	Name	Count	Type	Full Name
1	ALA	2	Mod. Amino Acid	ALANINE
2	MG	2	Ligand/Ion	MAGNESIUM ION
3	MSE	4	Mod. Amino Acid	SELENOMETHIONINE

Asymmetric Unit (4, 4)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	VAL A:274 , GLU A:277 , HOH A:524 , HOH A:563 , HOH A:612 , HOH A:796	BINDING SITE FOR RESIDUE MG A 501
2	AC2	SOFTWARE	SER B:78 , SER B:272 , ASP B:273 , HOH B:580 , HOH B:822	BINDING SITE FOR RESIDUE MG B 501
3	AC3	SOFTWARE	TRP A:141 , TRP A:147 , ARG A:152 , TRP A:154 , TYR A:170 , ASP A:172 , SER A:173 , PHE A:199 , ASP A:201	BINDING SITE FOR RESIDUE ALA A 502
4	AC4	SOFTWARE	TRP B:141 , TRP B:147 , ARG B:152 , TRP B:154 , TYR B:170 , ASP B:172 , SER B:173 , PHE B:199 , ASP B:201	BINDING SITE FOR RESIDUE ALA B 502

(no "SS Bond" information available for 3C8C)

(no "Cis Peptide Bond" information available for 3C8C)

(no "SAP(SNP)/Variant" information available for 3C8C)

(no "PROSITE Motif" information available for 3C8C)

(no "Exon" information available for 3C8C)

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:241
 aligned with Q9KL26_VIBCH | Q9KL26 from UniProtKB/TrEMBL  Length:652

    Alignment length:242
                                    70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300  
         Q9KL26_VIBCH    61 EIRSMVSDSVDEIVDGVSKTTAEVINGRKSIAQYATSLIENNPEPDNVRTIISQPLIKNTFLLVGFGLEKDGSNINNDPSWNPGPTWDPRVRPWYKDAKNAGKLVITAPYADSASGEILVSVATPVKDSATGQFLGSIFYDVSLAELAELVNEVKLFDAGYVFIVSEDGTTIAHPKKEFNGKPMSEFLGESKINVDTHQVIINGKPYAVSFSDVEGEDWYVGVVIDEEIAYAALDELRRSTL 302
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 3c8cA01 A:61-90,A:203-300     3c8cA02 A:91-202  [code=3.30.450.20, no name defined]                                                           3c8cA01 A:61-90,A:203-300  [code=3.30.450.20, no name defined]                                    -- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhh..eeeee.....eee...........hhhhhhhhhhhhhhh..ee...ee......eeeeeeeeee......eeeeeeeeehhhhhhhhhh.......eeeeeee....eee..hhhhh...hhhhhh........eeeee..eeeeeeeee.....eeeeeeehhhhhhhhhhhhhh.-. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3c8c A  61 SLRSmVSDSVDEIVDGVSKTTAEVINGRKSIAQYATSLIENNPEPDNVRTIISQPLIKNTFLLVGFGLEKDGSNINNDPSWNPGPTWDPRVRPWYKDAKNAGKLVITAPYADSASGEILVSVATPVKDSATGQFLGSIFYDVSLAELAELVNEVKLFDAGYVFIVSEDGTTIAHPKKEFNGKPmSEFLGESKINVDTHQVIINGKPYAVSFSDVEGEDWYVGVVIDEEIAYAALDELRRS-A 502
                                |   70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240   |   250       260       270       280       290       300 |
                                |                                                                                                                                                                                244-MSE                                                 300 |
                               65-MSE                                                                                                                                                                                                                                      502

Chain B from PDB  Type:PROTEIN  Length:241
 aligned with Q9KL26_VIBCH | Q9KL26 from UniProtKB/TrEMBL  Length:652

    Alignment length:241
                                    70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300 
         Q9KL26_VIBCH    61 EIRSMVSDSVDEIVDGVSKTTAEVINGRKSIAQYATSLIENNPEPDNVRTIISQPLIKNTFLLVGFGLEKDGSNINNDPSWNPGPTWDPRVRPWYKDAKNAGKLVITAPYADSASGEILVSVATPVKDSATGQFLGSIFYDVSLAELAELVNEVKLFDAGYVFIVSEDGTTIAHPKKEFNGKPMSEFLGESKINVDTHQVIINGKPYAVSFSDVEGEDWYVGVVIDEEIAYAALDELRRST 301
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 3c8cB01 B:61-89,B:203-300    3c8cB02 B:90-202  [code=3.30.450.20, no name defined]                                                            3c8cB01 B:61-89,B:203-300  [code=3.30.450.20, no name defined]                                    - CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhh..eeeee.....eee...........hhhhhhhhhhhhhhh..ee...ee......eeeeeeeeee......eeeeeeeeehhhhhhhhhh.......eeeeee.....eee..hhhhh...hhhhhh........eeeee..eeeeeeeee......eeeeeeehhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3c8c B  61 SLRSmVSDSVDEIVDGVSKTTAEVINGRKSIAQYATSLIENNPEPDNVRTIISQPLIKNTFLLVGFGLEKDGSNINNDPSWNPGPTWDPRVRPWYKDAKNAGKLVITAPYADSASGEILVSVATPVKDSATGQFLGSIFYDVSLAELAELVNEVKLFDAGYVFIVSEDGTTIAHPKKEFNGKPmSEFLGESKINVDTHQVIINGKPYAVSFSDVEGEDWYVGVVIDEEIAYAALDELRRSA 502
                                |   70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240   |   250       260       270       280       290       300|
                                |                                                                                                                                                                                244-MSE                                                 300|
                               65-MSE                                                                                                                                                                                                                                     502

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 '\|'

(no "SCOP Domain" information available for 3C8C)

Asymmetric/Biological Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 2-Layer Sandwich (8480)

Topology: Beta-Lactamase (202)

Homologous Superfamily: [code=3.30.450.20, no name defined] (117)

N16961 (Vibrio cholerae o1 biovar eltor str) (1)

1a	3c8cB02	B:90-202
1b	3c8cA02	A:91-202
1c	3c8cB01	B:61-89,B:203-300
1d	3c8cA01	A:61-90,A:203-300

(no "Pfam Domain" information available for 3C8C)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A,B (Q9KL26_VIBCH | Q9KL26)

molecular function
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0004872	receptor activity	Combining with an extracellular or intracellular messenger to initiate a change in cell activity.
	GO:0004871	signal transducer activity	Conveys a signal across a cell to trigger a change in cell function or state. A signal is a physical entity or change in state that is used to transfer information in order to trigger a response.
biological process
	GO:0006935	chemotaxis	The directed movement of a motile cell or organism, or the directed growth of a cell guided by a specific chemical concentration gradient. Movement may be towards a higher concentration (positive chemotaxis) or towards a lower concentration (negative chemotaxis).
	GO:0007165	signal transduction	The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
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.

Asymmetric/Biological Unit
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