BMRB: 5652

1H Chemical Shift Assignments for CnErg1

Authors

Torres, A.M., Bansal, P.S., Alewood, P.F., Bursill, J.A., Kuchel, P.W., Vandenberg, J.I.

Assembly

CnErg1

Entity

1. CnErg1 (polymer, Thiol state: all disulfide bound), 42 monomers, 4738.348 Da Detail

DRDSCVDKSR CAKYGYYQEC QDCCKNAGHN GGTCMFFKCK CA

Formula weight

4738.348 Da

Entity Connection

disulfide 4 Detail

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ID	Type	Value order	Atom ID 1	Atom ID 2
1	disulfide	sing	1:CYS5:SG	1:CYS23:SG
2	disulfide	sing	1:CYS11:SG	1:CYS34:SG
3	disulfide	sing	1:CYS20:SG	1:CYS39:SG
4	disulfide	sing	1:CYS24:SG	1:CYS41:SG

Source organism

Centruroides noxius

Exptl. method

NMR

Refine. method

simulated annealing, molecular dynamics, distance geometry, torsion angle dynamics

Data set

assigned_chemical_shifts

Chem. Shift Complete

Sequence coverage: 100.0 %, Completeness: 88.1 %, Completeness (bb): 98.9 % Detail

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Polymer type: polypeptide(L)

	Total	1H
All	88.1 % (214 of 243)	88.1 % (214 of 243)
Backbone	98.9 % (87 of 88)	98.9 % (87 of 88)
Sidechain	81.9 % (127 of 155)	81.9 % (127 of 155)
Aromatic	54.2 % (13 of 24)	54.2 % (13 of 24)
Methyl	100.0 % (6 of 6)	100.0 % (6 of 6)

1. Ergtoxin

DRDSCVDKSR CAKYGYYQEC QDCCKNAGHN GGTCMFFKCK CA

Show sample condition

Sample

Temperature 298 (±1) K, pH 3.2 (±0.1)

#	Name	Isotope labeling	Type	Concentration
1	Ergtoxin			1.7 mM

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Protein Blocks Logo

Calculated from 20 models in PDB: 1NE5, Strand ID: A Detail

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Release date

2003-01-08

Citation 1

Solution structure of CnErg1 (Ergtoxin), a HERG specific scorpion toxin
Torres, A.M., Bansal, P.S., Alewood, P.F., Bursill, J.A., Kuchel, P.W., Vandenberg, J.I.
FEBS Lett. (2003), 539, 138-142, PubMed 12650941 , DOI: , Abstract

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Citation 2

A toxin to nervous, cardiac, and endocrine ERG K+ channels isolated from Centruroides noxius scorpion venom
Gurrola, G.B., Rosati, B., Rocchetti, M., Pimienta, G., Zaza, A., Arcangeli, A., Olivotto, M., Possani, L.D., Wanke, E.
FASEB J. (1999), 13, 953-962, PubMed 10224238 , Abstract

Citation 3

Disulfide bridges of ergtoxin, a member of a new sub-family of peptide blockers of the ether-a-go-go-related K+ channel
Scaloni, A., Bottiglieri, C., Ferrara, L., Corona, M., Gurrola, G.B., Batista, C., Wanke, E., Possani, L.D.
FEBS Lett. (2000), 479, 156-157, PubMed 11023354 , DOI: , Abstract

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Related entities 1. CnErg1, : 1 : 2 : 2 : 30 entities Detail

Experiments performed 2 experiments Detail