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Interhelical Ion Pairing in Coiled Coils: Solution Structure of a Heterodimeric Leucine Zipper and Determination of pKa Values of Glu Side Chains
Authors
Marti, D.N., Jelesarov, I., Bosshard, H.R.
Assembly
DESIGNED HETERODIMERIC LEUCINE ZIPPER
Entity
1. LEUCINE ZIPPER CHAIN A (polymer, Thiol state: all disulfide bound), 33 monomers, 3539.763 Da Detail

XEVAQLEKEV AQAEAENYQL EQEVAQLEHE CGX


2. LEUCINE ZIPPER CHAIN B (polymer, Thiol state: all disulfide bound), 33 monomers, 3559.219 Da Detail

XEVQALKKRV QALKARNYAA KQKVQALRHK CGX


Total weight
7098.982 Da
Max. entity weight
3559.219 Da
Entity Connection
disulfide 1 Detail

IDTypeValue orderAtom ID 1Atom ID 2
1disulfidesing1:CYS31:SG2:CYS31:SG

Exptl. method
NMR
Refine. method
1. DISTANCE GEOMETRY/REGULARIZATION, 2. SIMULATED ANNEALING, 3. MOLECULAR DYNAMICS SIMULATION INCLUDING 8 ANGSTROMS WATER SHELL
Data set
assigned_chemical_shifts
Chem. Shift Complete1
Sequence coverage: 51.5 %, Completeness: 49.7 %, Completeness (bb): 54.8 % Detail

Polymer type: polypeptide(L)

Total1H
All49.7 % (193 of 388)49.7 % (193 of 388)
Backbone54.8 % (69 of 126)54.8 % (69 of 126)
Sidechain47.3 % (124 of 262)47.3 % (124 of 262)
Aromatic50.0 % (6 of 12)50.0 % (6 of 12)
Methyl51.4 % (18 of 35)51.4 % (18 of 35)

1. LEUCINE ZIPPER CHAIN A

XEVAQLEKEV AQAEAENYQL EQEVAQLEHE CGX

2. LEUCINE ZIPPER CHAIN B

XEVQALKKRV QALKARNYAA KQKVQALRHK CGX

Sample

Temperature 310 (±0.5) K, pH 5.65 (±0.05)


#NameIsotope labelingTypeConcentration
1LEUCINE ZIPPER CHAIN A2.1 mM
2LEUCINE ZIPPER CHAIN B2.1 mM

Chem. Shift Complete2
Sequence coverage: 51.5 %, Completeness: 51.7 %, Completeness (bb): 54.0 % Detail

Polymer type: polypeptide(L)

Total1H
All51.7 % (401 of 776)51.7 % (401 of 776)
Backbone54.0 % (136 of 252)54.0 % (136 of 252)
Sidechain50.6 % (265 of 524)50.6 % (265 of 524)
Aromatic50.0 % (12 of 24)50.0 % (12 of 24)
Methyl54.3 % (38 of 70)54.3 % (38 of 70)

1. LEUCINE ZIPPER CHAIN A

XEVAQLEKEV AQAEAENYQL EQEVAQLEHE CGX

2. LEUCINE ZIPPER CHAIN B

XEVQALKKRV QALKARNYAA KQKVQALRHK CGX

Sample

Temperature 310 (±0.5) K, pH 5.65 (±0.05)


#NameIsotope labelingTypeConcentration
1LEUCINE ZIPPER CHAIN A2.1 mM
2LEUCINE ZIPPER CHAIN B2.1 mM

Protein Blocks Logo
Calculated from 25 models in PDB: 1FMH, Strand ID: A, B Detail


Release date
2008-07-15
Citation
Interhelical ion pairing in coiled coils: solution structure of a heterodimeric leucine zipper and determination of pKa values of Glu side chains
Marti, D.N., Jelesarov, I., Bosshard, H.R.
Biochemistry (2000), 39, 12804-12818, PubMed 11041845 , DOI: ,
Related entities 1. LEUCINE ZIPPER CHAIN A, : 8 entities Detail
Related entities 2. LEUCINE ZIPPER CHAIN B, : 4 entities Detail
Experiments performed 3 experiments Detail
nullKeywords coiled coil, interhelical ion pairing, leucine zipper