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NMR structure of the complex of an N-terminally acetylated alpha-synuclein peptide with calmodulin
Authors
Gruschus, J.M., Yap, T., Pistolesi, S., Maltsev, A.S., Lee, J.C.
Assembly
Calmodulin/a-syn peptide complex
Entity
1. calmodulin (polymer, Thiol state: not present), 148 monomers, 16706.21 Da Detail

ADQLTEEQIA EFKEAFSLFD KDGDGTITTK ELGTVMRSLG QNPTEAELQD MINEVDADGN GTIDFPEFLT MMARKMKDTD SEEEIREAFR VFDKDGNGYI SAAELRHVMT NLGEKLTDEE VDEMIREADI DGDGQVNYEE FVQMMTAK


2. peptide (polymer, Thiol state: not present), 20 monomers, 1950.347 Da Detail

MDVFMKGLSK AKEGVVAAAX


3. ACETYL GROUP (non-polymer, Thiol state: not present), 44.053 Da
4. CALCIUM ION (non-polymer, Thiol state: not present), 40.078 × 4 Da
Total weight
18860.924 Da
Max. entity weight
16706.21 Da
Source organism
Homo sapiens
Exptl. method
solution NMR
Refine. method
DGSA-distance geometry simulated annealing
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 98.8 %, Completeness: 47.6 %, Completeness (bb): 83.0 % Detail

Polymer type: polypeptide(L)

Total1H13C15N
All47.6 % (894 of 1879)39.9 % (389 of 974)47.7 % (347 of 728)89.3 % (158 of 177)
Backbone83.0 % (828 of 998)98.8 % (341 of 345)67.6 % (330 of 488)95.2 % (157 of 165)
Sidechain20.8 % (215 of 1035) 7.6 % (48 of 629)42.1 % (166 of 394) 8.3 % (1 of 12)
Aromatic 0.0 % (0 of 110) 0.0 % (0 of 55) 0.0 % (0 of 55)
Methyl18.7 % (31 of 166) 8.4 % (7 of 83)28.9 % (24 of 83)

1. calmodulin

ADQLTEEQIA EFKEAFSLFD KDGDGTITTK ELGTVMRSLG QNPTEAELQD MINEVDADGN GTIDFPEFLT MMARKMKDTD SEEEIREAFR VFDKDGNGYI SAAELRHVMT NLGEKLTDEE VDEMIREADI DGDGQVNYEE FVQMMTAK

2. peptide

MDVFMKGLSK AKEGVVAAAX

Sample #1

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 310 K, pH 6.36


#NameIsotope labelingTypeConcentration
1calmodulin[U-99% 13C; U-99% 15N]600 uM
2peptidenatural abundance600 uM
3MESnatural abundance50 mM
4potassium chloridenatural abundance100 mM
5CALCIUM IONnatural abundance3 mM
6H2Onatural abundance95 %
7D2Onatural abundance5 %
Sample #2

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 310 K, pH 6.36


#NameIsotope labelingTypeConcentration
8peptide[U-13C; U-15N]-Met,Val,Phe,Gly,Leu,Ala700 uM
9calmodulinnatural abundance700 uM
10MESnatural abundance50 mM
11potassium chloridenatural abundance100 mM
12CALCIUM IONnatural abundance3 mM
13sodium azidenatural abundance.1 %
14H2Onatural abundance95 %
15D2Onatural abundance5 %
Sample #3

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 310 K, pH 6.36


#NameIsotope labelingTypeConcentration
16calmodulin[U-99% 13C; U-99% 15N]150 uM
17peptidenatural abundance150 uM
18MESnatural abundance50 mM
19potassium chloridenatural abundance100 mM
20CALCIUM IONnatural abundance3 mM
21Pf1 phagenatural abundance10 mg/mL
22H2Onatural abundance95 %
23D2Onatural abundance5 %

Protein Blocks Logo
Calculated from 20 models in PDB: 2M55, Strand ID: A, B Detail


Release date
2013-05-05
Citation
NMR structure of calmodulin complexed to an N-terminally acetylated α-synuclein peptide
Gruschus, J.M., Yap, T., Pistolesi, S., Maltsev, A.S., Lee, J.C.
Biochemistry (2013), 52, 3436-3445, PubMed 23607618 , DOI 10.1021/bi400199p ,
Related entities 1. calmodulin, : 11 : 88 entities Detail
Related entities 2. peptide, : 1 : 30 : 12 entities Detail
Interaction partners 2. peptide, : 1 interactors Detail
Experiments performed 15 experiments Detail
NMR combined restraints 5 contents Detail
Keywords Ca-binding, Protein/peptide