2DPQ - JenaLib

Title :   THE CRYSTAL STRUCTURES OF THE CALCIUM-BOUND CON-G AND CON-T(K7GAMMA) DIMERIC PEPTIDES DEMONSTRATE A NOVEL METAL-DEPENDENT HELIX-FORMING MOTIF

Authors :   S. E. Cnudde, M. Prorok, Q. Dai, F. J. Castellino, J. H. Geiger

Date :   13 May 06 (Deposition) - 24 Apr 07 (Release) - 24 Jul 13 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.25

Chains :   Asym. Unit : A
Biol. Unit 1: A  (2x)
Biol. Unit 2: A  (2x)
Biol. Unit 3: A  (4x)

Keywords :   Conantoxin, Con-G, Nmdar Antagonist, Gla-Containing, Metal Binding Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   S. E. Cnudde, M. Prorok, Q. Dai, F. J. Castellino, J. H. Geiger
The Crystal Structures Of The Calcium-Bound Con-G And Con-T[K7Gamma] Dimeric Peptides Demonstrate A Metal-Dependent Helix-Forming Motif
J. Am. Chem. Soc. V. 129 1586 2007
PubMed-ID: 17243678 | Reference-DOI: 10.1021/JA065722Q

Compounds

Molecule 1 - CONANTOKIN-G
	Chains	:	A
	Engineered	:	YES
	Organism Common	:	GEOGRAPHY CONE
	Organism Scientific	:	CONUS GEOGRAPHUS
	Organism Taxid	:	6491
	Other Details	:	THE CON-G PEPTIDE WAS SYNTHESIZED. THE SEQUENCE OF THE PEPTIDE IS NATURALLY FOUND IN CONUS GEOGRAPHUS (GEOGRAPHY CONE)
	Synonym	:	CON-G, CGX-1007, CONOTOXIN GV, SLEEPER PEPTIDE
	Synthetic	:	YES

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (4, 10)

Asymmetric Unit (4, 10)

No.	Name	Count	Type	Full Name
1	CA	3	Ligand/Ion	CALCIUM ION
2	CGU	5	Mod. Amino Acid	GAMMA-CARBOXY-GLUTAMIC ACID
3	CL	1	Ligand/Ion	CHLORIDE ION
4	NH2	1	Mod. Amino Acid	AMINO GROUP

Biological Unit 1 (2, 12)

No.	Name	Count	Type	Full Name
1	CA	-1	Ligand/Ion	CALCIUM ION
2	CGU	10	Mod. Amino Acid	GAMMA-CARBOXY-GLUTAMIC ACID
3	CL	-1	Ligand/Ion	CHLORIDE ION
4	NH2	2	Mod. Amino Acid	AMINO GROUP

Biological Unit 2 (2, 12)

No.	Name	Count	Type	Full Name
1	CA	-1	Ligand/Ion	CALCIUM ION
2	CGU	10	Mod. Amino Acid	GAMMA-CARBOXY-GLUTAMIC ACID
3	CL	-1	Ligand/Ion	CHLORIDE ION
4	NH2	2	Mod. Amino Acid	AMINO GROUP

Biological Unit 3 (2, 24)

No.	Name	Count	Type	Full Name
1	CA	-1	Ligand/Ion	CALCIUM ION
2	CGU	20	Mod. Amino Acid	GAMMA-CARBOXY-GLUTAMIC ACID
3	CL	-1	Ligand/Ion	CHLORIDE ION
4	NH2	4	Mod. Amino Acid	AMINO GROUP

Sites (4, 4)

Asymmetric Unit (4, 4)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	CGU A:3 , ASN A:17 , NH2 A:18 , HOH A:112 , HOH A:144	BINDING SITE FOR RESIDUE CL A 104
2	AC2	SOFTWARE	CGU A:7 , CGU A:10 , HOH A:137	BINDING SITE FOR RESIDUE CA A 101
3	AC3	SOFTWARE	CGU A:3 , GLN A:6 , CGU A:10 , CGU A:14	BINDING SITE FOR RESIDUE CA A 102
4	AC4	SOFTWARE	CGU A:3 , CGU A:7 , HOH A:133 , HOH A:136 , HOH A:141	BINDING SITE FOR RESIDUE CA A 103

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (1, 1)

Asymmetric Unit (1, 1)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_CKG_CONGE_001 *	L	85	V	CKG_CONGE	---	---	A	L	5	V
	* ID not provided by source

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

Biological Unit 1 (1, 2)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_CKG_CONGE_001 *	L	85	V	CKG_CONGE	---	---	A	L	5	V
	* ID not provided by source

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

Biological Unit 2 (1, 2)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_CKG_CONGE_001 *	L	85	V	CKG_CONGE	---	---	A	L	5	V
	* ID not provided by source

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

Biological Unit 3 (1, 4)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_CKG_CONGE_001 *	L	85	V	CKG_CONGE	---	---	A	L	5	V
	* ID not provided by source

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

PROSITE Motifs (1, 1)

Asymmetric Unit (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CONANTOKIN	PS60025	Conantokin family signature.	CKG_CONGE	81-94	1	A:1-14

Biological Unit 1 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CONANTOKIN	PS60025	Conantokin family signature.	CKG_CONGE	81-94	2	A:1-14

Biological Unit 2 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CONANTOKIN	PS60025	Conantokin family signature.	CKG_CONGE	81-94	2	A:1-14

Biological Unit 3 (1, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CONANTOKIN	PS60025	Conantokin family signature.	CKG_CONGE	81-94	4	A:1-14

Exons (0, 0)

Sequences/Alignments

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

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Chain A from PDB  Type:PROTEIN  Length:18
 aligned with CKG_CONGE | P07231 from UniProtKB/Swiss-Prot  Length:100

    Alignment length:18
                                    90        
             CKG_CONGE   81 GEEELQENQELIREKSNG 98
               SCOP domains ------------------ SCOP domains
               CATH domains ------------------ CATH domains
               Pfam domains ------------------ Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ----V------------- SAPs(SNPs)
                    PROSITE CONANTOKIN    ---- PROSITE
                 Transcript ------------------ Transcript
                  2dpq A  1 GEeeLQeNQeLIReKSNx 18
                              ||  | 10   |   |
                              ||  |  |   |   |
                              3-CGU  |   |   |
                               4-CGU |   |   |
                                  7-CGU  |   |
                                    10-CGU   |
                                        14-CGU
                                            18-NH2

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Classification and Annotation

SCOP Domains (0, 0)

CATH Domains (0, 0)

Pfam Domains (0, 0)

Gene Ontology (4, 4)

Asymmetric Unit(hide GO term definitions)

Chain A (CKG_CONGE | P07231)

molecular function
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
biological process
	GO:0009405	pathogenesis	The set of specific processes that generate the ability of an organism to induce an abnormal, generally detrimental state in another organism.
cellular component
	GO:0005576	extracellular region	The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
	GO:0035792	other organism postsynaptic membrane	A postsynaptic membrane that is part of another organism, i.e. a secondary organism with which the first organism is interacting. A postsynaptic membrane is a specialized area of membrane facing the presynaptic membrane on the tip of the nerve ending and separated from it by a minute cleft (the synaptic cleft). Neurotransmitters transmit the signal across the synaptic cleft to the postsynaptic membrane.

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