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Title :   SOLUTION NMR STRUCTURE OF PEPTIDE IMI1 (PEAK 2)

Authors :   C. Heinis, S. Chen

Date :   24 Apr 14 (Deposition) - 24 Sep 14 (Release) - 05 Nov 14 (Revision)

Method :   SOLUTION NMR

Resolution :   NOT APPLICABLE

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

Keywords :   Dithiol Amino Acid, Conotoxin, Bicyclic Peptide, Macrocycle, Phage Display, Toxin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   S. Chen, R. Gopalakrishnan, T. Schaer, F. Marger, R. Hovius, D. Bertrand, F. Pojer, C. Heinis
Dithiol Amino Acids Can Structurally Shape And Enhance The Ligand-Binding Properties Of Polypeptides.
Nat Chem V. 6 1009 2014
PubMed-ID: 25343607 | Reference-DOI: 10.1038/NCHEM.2043
(for further references see the PDB file header)

Compounds

Molecule 1 - ALPHA-CONOTOXIN IMI
	Chains	:	A
	Engineered	:	YES
	Fragment	:	UNP RESIDUES 5-16
	Mutation	:	YES
	Organism Common	:	IMPERIAL CONE
	Organism Scientific	:	CONUS IMPERIALIS
	Organism Taxid	:	35631
	Synonym	:	ALPHA-CTX IMI
	Synthetic	:	YES

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 2)

NMR Structure (2, 2)

No.	Name	Count	Type	Full Name
1	81S	1	Mod. Amino Acid	(4S)-4,5-DISULFANYL-L-NORVALINE
2	NH2	1	Mod. Amino Acid	AMINO GROUP

NMR Structure * (2, 2)

No.	Name	Count	Type	Full Name
1	81S	1	Mod. Amino Acid	(4S)-4,5-DISULFANYL-L-NORVALINE
2	NH2	1	Mod. Amino Acid	AMINO GROUP

Sites (0, 0)

SS Bonds (0, 0)

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.	CA1_CONIM	6-16	1	A:4-12

NMR Structure * (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ALPHA_CONOTOXIN	PS60014	Alpha-conotoxin family signature.	CA1_CONIM	6-16	1	A:4-12

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:13
 aligned with CA1_CONIM | P50983 from UniProtKB/Swiss-Prot  Length:17

    Alignment length:13
                                    14   
             CA1_CONIM    5 GCCSDPRCAWRCG 17
               SCOP domains ------------- SCOP domains
               CATH domains ------------- CATH domains
               Pfam domains ------------- Pfam domains
         Sec.struct. author ....hhhhhh... Sec.struct. author
                 SAPs(SNPs) ------------- SAPs(SNPs)
                    PROSITE -ALPHA_CONOT- PROSITE
                 Transcript ------------- Transcript
                  2moa A  1 GxASDPRCAWRCx 13
                             |      10  |
                             |         13-NH2
                             2-81S

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Classification and Annotation

SCOP Domains (0, 0)

CATH Domains (0, 0)

Pfam Domains (0, 0)

Gene Ontology (2, 2)

NMR Structure(hide GO term definitions)

Chain A (CA1_CONIM | P50983)

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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