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NMR solution structure of midkine-a
Authors
Lim, J., Yang, D., Meng, D.
Assembly
midkine-a
Entity
1. midkine-a (polymer, Thiol state: all disulfide bound), 125 monomers, 13521.28 Da Detail

GSKNKKEKNK GGKGGADCAE WLYGSCVANN GDCGQGMREG TCNEQTRKVK CRVPCNWKKE FGADCKYKFG NWGECDAATS TKSRTGTLQK ALFNVECQQT VSVTKPCTTK VKNKPKGKKG KGKGN


Formula weight
13521.28 Da
Entity Connection
disulfide 5 Detail

IDTypeValue orderAtom ID 1Atom ID 2
1disulfidesing1:CYS18:SG1:CYS42:SG
2disulfidesing1:CYS26:SG1:CYS51:SG
3disulfidesing1:CYS33:SG1:CYS55:SG
4disulfidesing1:CYS65:SG1:CYS97:SG
5disulfidesing1:CYS75:SG1:CYS107:SG

Source organism
Danio rerio
Exptl. method
solution NMR
Refine. method
simulated annealing
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 98.4 %, Completeness: 75.8 %, Completeness (bb): 79.0 % Detail

Polymer type: polypeptide(L)

Total1H13C15N
All75.8 % (1077 of 1421)75.5 % (571 of 756)72.6 % (381 of 525)89.3 % (125 of 140)
Backbone79.0 % (588 of 744)90.6 % (240 of 265)66.1 % (236 of 357)91.8 % (112 of 122)
Sidechain75.3 % (590 of 784)67.4 % (331 of 491)89.5 % (246 of 275)72.2 % (13 of 18)
Aromatic87.8 % (72 of 82)87.8 % (36 of 41)86.8 % (33 of 38)100.0 % (3 of 3)
Methyl100.0 % (74 of 74)100.0 % (37 of 37)100.0 % (37 of 37)

1. midkine-a

GSKNKKEKNK GGKGGADCAE WLYGSCVANN GDCGQGMREG TCNEQTRKVK CRVPCNWKKE FGADCKYKFG NWGECDAATS TKSRTGTLQK ALFNVECQQT VSVTKPCTTK VKNKPKGKKG KGKGN

Sample

Solvent system 95%H2O, 5 % D2O, Pressure 1 atm, Temperature 303 K, pH 6.5, Details 10 mM NaH2PO4/ Na2HPO4 at pH 6.5, 0.1 mM NaN3, 100 mM NaCl, 1 mM EDTA, 95%H2O, 5 % D2O


#NameIsotope labelingTypeConcentration
1sodium phosphatenatural abundance10 mM
2sodium azidenatural abundance0.1 mM
3sodium chloridenatural abundance100 mM
4EDTAnatural abundance1 mM
5midkine-a[U-100% 13C; U-100% 15N]0.8 mM
6H2Onatural abundance95 %
7D2Onatural abundance5 %

LACS Plot; CA
Referencing offset: 0.49 ppm, Outliers: 2 Detail
LACS Plot; CB
Referencing offset: 0.49 ppm, Outliers: 2 Detail
LACS Plot; HA
Referencing offset: 0.04 ppm, Outliers: 1 Detail
Protein Blocks Logo
Calculated from 10 models in PDB: 2LUT, Strand ID: A Detail


Release date
2013-04-01
Citation
Structure-function analysis of full-length midkine reveals novel residues important for heparin binding and zebrafish embryogenesis
Lim, J., Yao, S., Graf, M., Winkler, C., Yang, D.
Biochem. J. (2013), 451, 407-415, PubMed 23418741 , DOI 10.1042/BJ20121622 ,
Related entities 1. midkine-a, : 1 : 10 entities Detail
Experiments performed 6 experiments Detail
NMR combined restraints 4 contents Detail
Keywords beta sheet, disulfide bond, independent half-domains, midkine