Biological Assembly 1  

 3D View: Structure | Ligand Interaction

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 5505.96 
• Atom Count: 387 
• Residue Count: 34 
• Unique protein chains: 1

2NA5

NMR solution structure of vitamin B12 conjugates of PYY3-36

• DOI: 10.2210/pdb2NA5/pdb
• BMRB: 25928

• Classification: HORMONE
• Organism(s): Homo sapiens


• Deposited: 2015-12-21 Released: 2016-09-21 
• Deposition Author(s): Doyle, R.P., Henry, K.E., Roth, C.L., Kerwood, D.J., Allis, D.G., Holz, G.G., Zubieta, J.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 4 
• Conformers Submitted: 1 
• Selection Criteria: structures with the lowest energy 

Literature

Solution Structure and Constrained Molecular Dynamics Study of Vitamin B12 Conjugates of the Anorectic Peptide PYY(3-36).

Henry, K.E., Kerwood, D.J., Allis, D.G., Workinger, J.L., Bonaccorso, R.L., Holz, G.G., Roth, C.L., Zubieta, J., Doyle, R.P.

(2016) Chemmedchem 11: 1015-1021

• PubMed: 27027248 
• DOI: 10.1002/cmdc.201600073


• PubMed Abstract: 
  

Vitamin B12 -peptide conjugates have considerable therapeutic potential through improved pharmacokinetic and/or pharmacodynamic properties imparted on the peptide upon covalent attachment to vitamin B12 (B12 ). There remains a lack of structural studies investigating the effects of B12 conjugation on peptide secondary structure. Determining the solution structure of a B12 -peptide conjugate or conjugates and measuring functions of the conjugate(s) at the target peptide receptor may offer considerable insight concerning the future design of fully optimized conjugates. This methodology is especially useful in tandem with constrained molecular dynamics (MD) studies, such that predictions may be made about conjugates not yet synthesized. Focusing on two B12 conjugates of the anorectic peptide PYY(3-36), one of which was previously demonstrated to have improved food intake reduction compared with PYY(3-36), we performed NMR structural analyses and used the information to conduct MD simulations. The study provides rare structural insight into vitamin B12 conjugates and validates the fact that B12 can be conjugated to a peptide without markedly affecting peptide secondary structure.

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Organizational Affiliation: 

Department of Chemistry, Center for Science and Technology, Syracuse University, 111 College Place, Syracuse, NY, 13244, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Peptide YY	A	34	Homo sapiens	Mutation(s): 0  Gene Names: PYY
Find proteins for P10082 (Homo sapiens) Go to Gene View: PYY Go to UniProtKB:  P10082

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
CNC	A	CO-CYANOCOBALAMIN C63 H88 Co N14 O14 P OEEKSCBDGPRZJZ-BYLSPCLQSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
4QK	A	L-PEPTIDE LINKING	C10 H19 N5 O2		--

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 4 
• Conformers Submitted: 1 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2015-12-21 
• Released Date: 2016-09-21 
• Deposition Author(s): Doyle, R.P., Henry, K.E., Roth, C.L., Kerwood, D.J., Allis, D.G., Holz, G.G., Zubieta, J.

Revision History 

• Version 1.0: 2016-09-21
  Type: Initial release
• Version 1.1: 2016-10-12
  Type: Other