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A Zinc Clasp Structure Tethers Lck to T Cell Coreceptors CD4 and CD8
Authors
Kim, P.W., Sun, Z.J., Blacklow, S.C., Wagner, G., Eck, M.J.
Assembly
CD4 cytoplasmic tail - Lck N terminus
Entity
1. CD4 (polymer, Thiol state: free and other bound), 38 monomers, 4679.489 Da Detail

RCRHRRRQAE RLSQIKRLLS EKKTCQCPHR FQKTCSPI


2. Lck (polymer, Thiol state: free and other bound), 29 monomers, 3296.552 Da Detail

SHPEDDWLEN IDVCENCHYP IVPLDGKGT


3. ZN (non-polymer), 65.409 Da
Total weight
8041.45 Da
Max. entity weight
4679.489 Da
Entity Connection
metal coordination 4 Detail

IDTypeValue orderAtom ID 1Atom ID 2
1metal coordinationsing1:CYS25:SG3:ZN1:ZN
2metal coordinationsing1:CYS27:SG3:ZN1:ZN
3metal coordinationsing2:CYS14:SG3:ZN1:ZN
4metal coordinationsing2:CYS17:SG3:ZN1:ZN

Source organism
Homo sapiens
Exptl. method
NMR
Refine. method
distance geometry, simulated annealing, molecular dynamics, torsion angle dynamics
Data set
assigned_chemical_shifts
Chem. Shift Complete1
Sequence coverage: 55.2 %, Completeness: 43.2 %, Completeness (bb): 46.2 % Detail

Polymer type: polypeptide(L)

Total1H13C15N
All43.2 % (348 of 806)42.1 % (182 of 432)43.0 % (131 of 305)50.7 % (35 of 69)
Backbone46.2 % (181 of 392)50.4 % (66 of 131)40.2 % (80 of 199)56.5 % (35 of 62)
Sidechain42.2 % (202 of 479)38.5 % (116 of 301)50.3 % (86 of 171) 0.0 % (0 of 7)
Aromatic 4.3 % (2 of 46) 8.7 % (2 of 23) 0.0 % (0 of 22) 0.0 % (0 of 1)
Methyl50.0 % (26 of 52)50.0 % (13 of 26)50.0 % (13 of 26)

1. CD4

RCRHRRRQAE RLSQIKRLLS EKKTCQCPHR FQKTCSPI

2. Lck

SHPEDDWLEN IDVCENCHYP IVPLDGKGT

Sample

Temperature 298 (±1) K, pH 5.1 (±0.1)


#NameIsotope labelingTypeConcentration
1CD4 cytoplasmic tail - Lck N terminus0.5 mM
2Lck0.5 mM

Chem. Shift Complete2
Sequence coverage: 49.3 %, Completeness: 38.0 %, Completeness (bb): 41.6 % Detail

Polymer type: polypeptide(L)

Total1H13C15N
All38.0 % (612 of 1612)38.0 % (328 of 864)35.9 % (219 of 610)47.1 % (65 of 138)
Backbone41.6 % (326 of 784)47.3 % (124 of 262)34.7 % (138 of 398)51.6 % (64 of 124)
Sidechain36.1 % (346 of 958)33.9 % (204 of 602)41.2 % (141 of 342) 7.1 % (1 of 14)
Aromatic13.0 % (12 of 92)23.9 % (11 of 46) 0.0 % (0 of 44)50.0 % (1 of 2)
Methyl51.9 % (54 of 104)51.9 % (27 of 52)51.9 % (27 of 52)

1. CD4

RCRHRRRQAE RLSQIKRLLS EKKTCQCPHR FQKTCSPI

2. Lck

SHPEDDWLEN IDVCENCHYP IVPLDGKGT

Sample

Temperature 298 (±1) K, pH 5.1 (±0.1)


#NameIsotope labelingTypeConcentration
1CD4 cytoplasmic tail - Lck N terminus0.5 mM
2Lck0.5 mM

Protein Blocks Logo
Calculated from 10 models in PDB: 1Q68, Strand ID: A, B Detail


Release date
2003-12-18
Citation
A zinc clasp structure tethers Lck to T cell coreceptors CD4 and CD8
Kim, P.W., Sun, Z.J., Blacklow, S.C., Wagner, G., Eck, M.J.
Science (2003), 301, 1725-1728, PubMed 14500983 , DOI 10.1126/science.1085643 ,
Related entities 1. CD4, : 8 : 10 entities Detail
Related entities 2. Lck, : 1 : 1 : 2 : 20 entities Detail
Interaction partners 1. CD4, : 17 : 1 interactors Detail
Interaction partners 2. Lck, : 61 : 1 interactors Detail
Experiments performed 13 experiments Detail
nullKeywords CD4, CD8, Lck, Zinc