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NMR structure of human I-type lectin domain-glycan complex
Authors
Proepster, J.M., Yang, F., Rabbani, S., Ernst, B., Allain, F.H.-T., Schubert, M.
Assembly
human I-type lectin domain-glycan complex
Entity
1. Siglec-8 (polymer, Thiol state: all disulfide bound), 145 monomers, 16645.29 Da Detail

MEGDRQYGDG YLLQVQELVT VQEGLSVHVP CSFSYPQDGW TDSDPVHGYW FRAGDRPYQD APVATNNPDR EVQAETQGRF QLLGDIWSND CSLSIRDARK RDKGSYFFRL ERGSMKWSYK SQLNYKTKQL SVFVTALTHG SLVPR


2. SUGAR (5-MER) (non-polymer), 5 monomers, 957.9019 Da
Total weight
17603.191 Da
Max. entity weight
16645.29 Da
Entity Connection
disulfide 1 Detail

IDTypeValue orderAtom ID 1Atom ID 2
1disulfidesing1:CYS31:SG1:CYS91:SG

Source organism
Homo sapiens
Exptl. method
solution NMR
Refine. method
simulated annealing
Data set
assigned_chemical_shifts
Chem. Shift Complete1
Sequence coverage: 96.7 %, Completeness: 95.4 %, Completeness (bb): 97.0 % Detail

Polymer type: polypeptide(L) polysaccharide(D)

Total1H13C15N
All95.4 % (1625 of 1703)96.3 % (856 of 889)94.2 % (619 of 657)95.5 % (150 of 157)
Backbone97.0 % (830 of 856)95.9 % (283 of 295)98.3 % (416 of 423)94.9 % (131 of 138)
Sidechain94.5 % (926 of 980)96.5 % (573 of 594)91.0 % (334 of 367)100.0 % (19 of 19)
Aromatic82.6 % (152 of 184)95.7 % (88 of 92)68.2 % (60 of 88)100.0 % (4 of 4)
Methyl97.6 % (123 of 126)96.8 % (61 of 63)98.4 % (62 of 63)

1. Siglec-8

MEGDRQYGDG YLLQVQELVT VQEGLSVHVP CSFSYPQDGW TDSDPVHGYW FRAGDRPYQD APVATNNPDR EVQAETQGRF QLLGDIWSND CSLSIRDARK RDKGSYFFRL ERGSMKWSYK SQLNYKTKQL SVFVTALTHG SLVPR

Sample

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 293 K, pH 7.4


#NameIsotope labelingTypeConcentration
7Siglec-8[U-100% 13C; U-100% 15N]protein0.3 ~ 1.2 mM
8potassium phosphatenatural abundancebuffer20 mM
9sodium chloridenatural abundancesalt40 mM
10SUGAR (5-MER)natural abundance0.7 ~ 2.4 mM
11D2O[U-2H]solvent5 %
12H2Onatural abundancesolvent95 %

Chem. Shift Complete2
Sequence coverage: 28.7 %, Completeness: 56.8 %, Completeness (bb): 59.7 % Detail

Polymer type: polypeptide(L) polysaccharide(D)

Total1H13C15N
All56.8 % (1934 of 3406)56.5 % (1004 of 1778)56.4 % (741 of 1314)60.2 % (189 of 314)
Backbone59.7 % (1022 of 1712)59.0 % (348 of 590)59.6 % (504 of 846)61.6 % (170 of 276)
Sidechain54.7 % (1072 of 1960)55.2 % (656 of 1188)54.1 % (397 of 734)50.0 % (19 of 38)
Aromatic43.5 % (160 of 368)50.0 % (92 of 184)36.4 % (64 of 176)50.0 % (4 of 8)
Methyl59.5 % (150 of 252)60.3 % (76 of 126)58.7 % (74 of 126)

1. Siglec-8

MEGDRQYGDG YLLQVQELVT VQEGLSVHVP CSFSYPQDGW TDSDPVHGYW FRAGDRPYQD APVATNNPDR EVQAETQGRF QLLGDIWSND CSLSIRDARK RDKGSYFFRL ERGSMKWSYK SQLNYKTKQL SVFVTALTHG SLVPR

Sample

Solvent system 100% D2O, Pressure 1 atm, Temperature 303 K, pH 7.4


#NameIsotope labelingTypeConcentration
13Siglec-8[U-100% 13C; U-100% 15N]protein0.3 ~ 1.2 mM
14potassium phosphatenatural abundancebuffer20 mM
15sodium chloridenatural abundancesalt40 mM
16SUGAR (5-MER)natural abundance0.7 ~ 2.4 mM
17D2O[U-2H]solvent100 %

Protein Blocks Logo
Calculated from 20 models in PDB: 2N7B, Strand ID: A Detail


Release date
2016-07-04
Citation
Structural basis for sulfation-dependent self-glycan recognition by the human immune-inhibitory receptor Siglec-8
Proepster, J.M., Yang, F., Rabbani, S., Ernst, B., Allain, F.H.-T., Schubert, M.
Proc. Natl. Acad. Sci. U. S. A. (2016), 113, 4170-4179, PubMed 27357658 , DOI 10.1073/pnas.1602214113 ,
Entries sharing articles BMRB: 1 entries Detail
  BMRB: 25798 released on 2016-07-04
    Title NMR structure of human I-type lectin domain
Related entities 1. Siglec-8, : 1 : 3 : 3 : 64 entities Detail
Interaction partners 1. Siglec-8, : 1 interactors Detail
Experiments performed 20 experiments Detail
nullKeywords I-type lectin, SAF-2, Sialic acid-binding immunoglobulin-like lectin 8, Siglec8, carbohydrate recognition, carbohydrate-binding receptor, protein/glycan complex, sulfated sialyl Lewis X