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Structure of SDF1 in complex with the CXCR4 N-terminus containing sulfotyrosines at postitions 7, 12 and 21
Authors
Volkman, B.F., Veldkamp, C.T., Peterson, F.C.
Assembly
CXCL12/SDF1-alpha, CXCR4
Entity
1. CXCL12/SDF1-alpha (polymer, Thiol state: all disulfide bound), 70 monomers, 8173.634 × 2 Da Detail

GMKPVSLSYR CPCRFFESHV ARANVKHLKI LNTPNCACQI VARLKNNNRQ VCIDPKLKWI QEYLEKCLNK


2. CXCR4 (polymer, Thiol state: not present), 40 monomers, 4755.934 × 2 Da Detail

GSMEGISIXT SDNXTEEMGS GDXDSMKEPA FREENANFNK


Total weight
25859.137 Da
Max. entity weight
8173.634 Da
Entity Connection
disulfide 6 Detail

IDTypeValue orderAtom ID 1Atom ID 2
1disulfidesing1:CYS11:SG1:CYS36:SG
2disulfidesing1:CYS11:SG1:CYS36:SG
3disulfidesing1:CYS13:SG1:CYS52:SG
4disulfidesing1:CYS13:SG1:CYS52:SG
5disulfidesing1:CYS38:SG1:CYS67:SG
6disulfidesing1:CYS67:SG1:CYS38:SG

Source organism
Homo sapiens
Exptl. method
solution NMR
Refine. method
AUTOMATED METHODS WERE USED FOR BACKBONE CHEMICAL SHIFT ASSIGNMENT AND ITERATIVE NOE REFINEMENT. FINAL STRUCTURES WERE OBTAINED BY MOLECULAR DYNAMICS IN EXPLICIT SOLVENT.
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 94.5 %, Completeness: 89.9 %, Completeness (bb): 93.0 % Detail

Polymer type: polypeptide(L)

Total1H13C15N
All89.9 % (1135 of 1262)89.5 % (598 of 668)90.4 % (431 of 477)90.6 % (106 of 117)
Backbone93.0 % (588 of 632)92.1 % (197 of 214)93.0 % (294 of 316)95.1 % (97 of 102)
Sidechain88.1 % (645 of 732)88.3 % (401 of 454)89.4 % (235 of 263)60.0 % (9 of 15)
Aromatic73.7 % (56 of 76)81.6 % (31 of 38)64.9 % (24 of 37)100.0 % (1 of 1)
Methyl98.9 % (89 of 90)100.0 % (45 of 45)97.8 % (44 of 45)

1. CXCL12/SDF1-alpha

GMKPVSLSYR CPCRFFESHV ARANVKHLKI LNTPNCACQI VARLKNNNRQ VCIDPKLKWI QEYLEKCLNK

2. CXCR4

GSMEGISIXT SDNXTEEMGS GDXDSMKEPA FREENANFNK

Sample #1

Solvent system 90% H2O, 10% D2O, Pressure 1 atm, Temperature 308 K, pH 6.8, Details 0.338 mM CXCL12 U-15N/13C (dimer concentration), 0.970 mM unlabled CXCR4, 25 mM MES(d13)


#NameIsotope labelingTypeConcentration
1CXCL12/SDF1-alpha[U-100% 13C; U-100% 15N]0.338 mM
2CXCR4natural abundance0.97 mM
3MES(d13)25 mM
4H2O90 %
5D2O10 %
Sample #2

Solvent system 90% H2O, 10% D2O, Pressure 1 atm, Temperature 308 K, pH 6.8, Details 1.07 mM CXCR4 U-15N/13C, 0.670 mM CXCL12 unlabeled (dimer concentration), 25 mM MES(d13)


#NameIsotope labelingTypeConcentration
6CXCR4[U-100% 13C; U-100% 15N]1.07 mM
7CXCL12/SDF1-alphanatural abundance0.67 mM
8MES(d13)25 mM
9H2O90 %
10D2O10 %

LACS Plot; CA
Referencing offset: -0.59 ppm, Outliers: 1 Detail
LACS Plot; CB
Referencing offset: -0.59 ppm, Outliers: 1 Detail
LACS Plot; HA
Referencing offset: 0.03 ppm, Outliers: 1 Detail
LACS Plot; CO
Referencing offset: 0.03 ppm, Outliers: 2 Detail
Protein Blocks Logo
Calculated from 20 models in PDB: 2K05, Strand ID: A, B, C, D Detail


Release date
2008-11-05
Citation
Structural basis of CXCR4 sulfotyrosine recognition by the chemokine SDF-1/CXCL12
Veldkamp, C.T., Seibert, C., Peterson, F.C., De la Cruz, N.B., Haugner, J.C., Basnet, H., Sakmar, T.P., Volkman, B.F.
Sci. Signal. (2008), 1, ra4-ra4, PubMed 18799424 , DOI 10.1126/scisignal.1160755 ,
Entries sharing articles BMRB: 3, Swiss-Prot: 2 entries Detail
  BMRB: 15633 released on 2008-11-05
    Title Structure of a locked SDF1 dimer
  BMRB: 15635 released on 2008-11-05
    Title Structure of SDF1 in complex with the CXCR4 N-terminus containing a sulfotyrosine at postition 21
  BMRB: 15636 released on 2008-11-05
    Title Structure of SDF1 in complex with the CXCR4 N-terminus containing no sulfotyrosines
  Swiss-Prot: P61073 released on 2004-04-26
    Title CXCR4_HUMAN Entity C-X-C chemokine receptor type 4
  Swiss-Prot: P48061 released on 1996-02-01
    Title SDF1_HUMAN Entity Stromal cell-derived factor 1
Related entities 1. CXCL12/SDF1-alpha, : 1 : 30 entities Detail
Related entities 2. CXCR4, : 1 : 5 : 25 entities Detail
Experiments performed 8 experiments Detail
NMR combined restraints 4 contents Detail
Keywords chemokine, CXCL12, CXCR4, locked dimer, SDF1-alpha, stromal cell derived factor-1, sulfotyrosine