Primary Citation PubMed: 2905485
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Conformational dynamics of insulin.
(2011) Front Endocrinol (Lausanne) 2
PubMed: 22649374 | PubMedCentral: PMC3355934 | DOI: 10.3389/fendo.2011.00048
(B) Ribbon model of insulin (T-state protomer; Protein Databank accession code 4INS; Baker et al., 1988 ).
The structures (wild-type accession codes 1MSO, 4INS, 1APH, 1BPH, 1CPH, 1DPH, 1TRZ, 1TYL, 1TYM, 2INS, 1ZNI, 1LPH, 1G7A; KP-insulin accession code 2JMN) were aligned according to the main-chains within α-helices (residues A2–A7, A13–A19, and B9–B19).
Publication Year: 2011
Landmarks in insulin research.
PubMed: 22654826 | PubMedCentral: PMC3356151 | DOI: 10.3389/fendo.2011.00076
Figure 2 (A) Tertiary structure of the porcine insulin monomer in its 2 Zn rhombohedral form (PDB entry 4INS).
Defining and searching for structural motifs using DeepView/Swiss-PdbViewer.
(2012) BMC Bioinformatics 13
PubMed: 22823337 | PubMedCentral: PMC3436773 | DOI: 10.1186/1471-2105-13-173
Structures of 4ins chain B (yellow) and 2agk (blue), oriented such that the four residues forming the common structural motif (in red) are optimally superposed (the backbone rmsd for the common motif ... s 0.36 Å ).
According to these results, LeuB11 and LeuB15 (pdb id: 4ins, chain B) are among the most important for fold stability, with the structural neighbors TyrB26 and ValB12 being identified as potential contributor and non-contributor to fold stability, respectively.
When the CMEPS- and FOLDEF-calculations mentioned above are repeated for pdb id 2agk, the residues Leu193, Leu197 and Tyr211 (corresponding to LeuB11, LeuB15 and TyrB26, respectively, in 4ins) were identified as the most important for fold stability and Val194 was identified as a potential contributor to fold stability (Additional file 5 ).
A motif specification was designed based on LeuB11, ValB12, LeuB15 and TyrB26 in pig insulin (pdb: 4ins, 1.5 Å resolution), with the strict 11-residue sequence separation constraint between the 3 rd and 4 th residue of the motif loosed by permitting deviations of ±25 (Additional file 3 , line 22).
Click here for file Additional file 3 The motif specification created from pig insulin (pdb id 4ins), with delta-constraints between the second Leu and Tyr loosened by permitting deviations of ±25 from the corresponding sequence separation of the motif in pdb id 4ins.
Publication Year: 2012
UV-light exposure of insulin: pharmaceutical implications upon covalent insulin dityrosine dimerization and disulphide bond photolysis.
(2012) PLoS One 7
PubMed: 23227203 | PubMedCentral: PMC3515625 | DOI: 10.1371/journal.pone.0050733
(A) 3D structures of insulin monomer and dimer extracted from the crystallized structured of the 2Zn pig insulin hexamer (4INS.
3D Protein Structure The crystallography data used for 3D protein structure display ( Figure 2A ), and distance calculations was extracted from the PDB file 4INS (2Zn hexameric pig insulin  ).
Flexibility in the insulin receptor ectodomain enables docking of insulin in crystallographic conformation observed in a hormone-bound microreceptor.
(2014) Membranes (Basel) 4
PubMed: 25309993 | PubMedCentral: PMC4289863 | DOI: 10.3390/membranes4040730
( a ) Helices in individual chains of hormone (PDB code 4INS) are rendered as yellow (A-chain) and black (B-chain) cartoons, while the flexible N- and C-termini of B-chain are transparent cartoons.
Publication Year: 2014
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