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Title :   NON-REDUCIBLE ANALOGUES OF ALPHA-CONOTOXIN VC1.1: [2,8]-TRANS DICARBA VC1.1

Authors :   S. D. Robinson, C. A. Macraild, B. J. Van Lierop, A. J. Robinson, R. S. No

Date :   24 Oct 13 (Deposition) - 18 Dec 13 (Release) - 18 Dec 13 (Revision)

Method :   SOLUTION NMR

Resolution :   NOT APPLICABLE

Chains :   NMR Structure  : A  (20x)
NMR Structure *: A  (1x)

Keywords :   Dicarba, Toxin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   B. J. Van Lierop, S. D. Robinson, S. N. Kompella, A. Belgi, J. R. Mcarthur, A. Hung, C. A. Macraild, D. J. Adams, R. S. Norton, A. J. Robinson
Dicarba Alpha-Conotoxin Vc1. 1 Analogues With Differential Selectivity For Nicotinic Acetylcholine And Gabab Receptors
Acs Chem. Biol. V. 8 1815 2013
PubMed-ID: 23768016 | Reference-DOI: 10.1021/CB4002393

Compounds

Molecule 1 - ALPHA-CONOTOXIN VC1A
	Chains	:	A
	Engineered	:	YES
	Organism Common	:	QUEEN VICTORIA CONE SNAIL
	Organism Scientific	:	CONUS VICTORIAE
	Organism Taxid	:	319920
	Other Details	:	VENOM
	Synonym	:	ACV1, ALPHA-VC1A, VC1.1
	Synthetic	:	YES

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 3)

Sites (0, 0)

SS Bonds (1, 1)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (1, 1)

NMR Structure (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ALPHA_CONOTOXIN	PS60014	Alpha-conotoxin family signature.	CA1A_CONVC	51-65	1	A:3-16

NMR Structure * (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ALPHA_CONOTOXIN	PS60014	Alpha-conotoxin family signature.	CA1A_CONVC	51-65	1	A:3-16

Exons (0, 0)

Sequences/Alignments

NMR Structure

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
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	UniProt sequence: complete aligned part

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Chain A from PDB  Type:PROTEIN  Length:17
 aligned with CA1A_CONVC | P69747 from UniProtKB/Swiss-Prot  Length:66

    Alignment length:17
                                    59       
            CA1A_CONVC   50 GCCSDPRCNYDHPEICG 66
               SCOP domains ----------------- SCOP domains
               CATH domains ----------------- CATH domains
               Pfam domains ----------------- Pfam domains
         Sec.struct. author hhhhh............ Sec.struct. author
                 SAPs(SNPs) ----------------- SAPs(SNPs)
                    PROSITE -ALPHA_CONOTOXIN- PROSITE
                 Transcript ----------------- Transcript
                  2mfy A  1 GaCSDPRaNYDHPEICx 17
                             |     |10      |
                             |     8-ABA   17-NH2
                             2-ABA

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Classification and Annotation

SCOP Domains (0, 0)

CATH Domains (0, 0)

Pfam Domains (0, 0)

Gene Ontology (5, 5)

NMR Structure(hide GO term definitions)

Chain A (CA1A_CONVC | P69747)

molecular function
	GO:0030550	acetylcholine receptor inhibitor activity	Interacting (directly or indirectly) with acetylcholine receptors such that the proportion of receptors in the active form is decreased.
biological process
	GO:2000272	negative regulation of receptor activity	Any process that stops, prevents or reduces the frequency, rate or extent of receptor activity.
	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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