5N8T | pdb_00005n8t

CRYSTAL STRUCTURE OF STREPTAVIDIN D-amino acid containing peptide Gdlwqheatwkkq


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.61 Å
  • R-Value Free: 
    0.243 (Depositor), 0.243 (DCC) 
  • R-Value Work: 
    0.204 (Depositor) 
  • R-Value Observed: 
    0.206 (Depositor) 

wwPDB Validation 3D Report Full Report

Validation slider image for 5N8T

Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history

Literature

Stepwise Evolution Improves Identification of Diverse Peptides Binding to a Protein Target.

Lyamichev, V.I.Goodrich, L.E.Sullivan, E.H.Bannen, R.M.Benz, J.Albert, T.J.Patel, J.J.

(2017) Sci Rep 7: 12116-12116

  • DOI: https://doi.org/10.1038/s41598-017-12440-1
  • Primary Citation Related Structures: 
    5N7X, 5N89, 5N8B, 5N8E, 5N8J, 5N8T, 5N8W, 5N99

  • PubMed Abstract: 

    Considerable efforts have been made to develop technologies for selection of peptidic molecules that act as substrates or binders to a protein of interest. Here we demonstrate the combination of rational peptide array library design, parallel screening and stepwise evolution, to discover novel peptide hotspots. These hotspots can be systematically evolved to create high-affinity, high-specificity binding peptides to a protein target in a reproducible and digitally controlled process. The method can be applied to synthesize both linear and cyclic peptides, as well as peptides composed of natural and non-natural amino acid analogs, thereby enabling screens in a much diverse chemical space. We apply this method to stepwise evolve peptide binders to streptavidin, a protein studied for over two decades and report novel peptides that mimic key interactions of biotin to streptavidin.


  • Organizational Affiliation
    • Roche Madison, 500 S Rosa Rd, Madison, WI, 53719, USA.

Macromolecule Content 

  • Total Structure Weight: 20.19 kDa 
  • Atom Count: 1,059 
  • Modeled Residue Count: 120 
  • Deposited Residue Count: 183 
  • Unique protein chains: 1

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Streptavidin183Streptomyces avidiniiMutation(s): 0 
UniProt
Find proteins for P22629 (Streptomyces avidinii)
Explore P22629 
Go to UniProtKB:  P22629
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP22629
Sequence Annotations
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Reference Sequence

Small Molecules

Ligands 8 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
DTR

Query on DTR



Download:Ideal Coordinates CCD File
C [auth A],
I [auth A]
D-TRYPTOPHAN
C11 H12 N2 O2
QIVBCDIJIAJPQS-SECBINFHSA-N
DHI

Query on DHI



Download:Ideal Coordinates CCD File
E [auth A]D-HISTIDINE
C6 H10 N3 O2
HNDVDQJCIGZPNO-RXMQYKEDSA-O
DGL

Query on DGL



Download:Ideal Coordinates CCD File
F [auth A]D-GLUTAMIC ACID
C5 H9 N O4
WHUUTDBJXJRKMK-GSVOUGTGSA-N
DLY

Query on DLY



Download:Ideal Coordinates CCD File
J [auth A]D-LYSINE
C6 H14 N2 O2
KDXKERNSBIXSRK-RXMQYKEDSA-N
DGN

Query on DGN



Download:Ideal Coordinates CCD File
D [auth A]D-GLUTAMINE
C5 H10 N2 O3
ZDXPYRJPNDTMRX-GSVOUGTGSA-N
DLE

Query on DLE



Download:Ideal Coordinates CCD File
B [auth A]D-LEUCINE
C6 H13 N O2
ROHFNLRQFUQHCH-RXMQYKEDSA-N
DTH

Query on DTH



Download:Ideal Coordinates CCD File
H [auth A]D-THREONINE
C4 H9 N O3
AYFVYJQAPQTCCC-STHAYSLISA-N
DAL

Query on DAL



Download:Ideal Coordinates CCD File
G [auth A]D-ALANINE
C3 H7 N O2
QNAYBMKLOCPYGJ-UWTATZPHSA-N

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.61 Å
  • R-Value Free:  0.243 (Depositor), 0.243 (DCC) 
  • R-Value Work:  0.204 (Depositor) 
  • R-Value Observed: 0.206 (Depositor) 
Space Group: P 42 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57.779α = 90
b = 57.779β = 90
c = 84.405γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
SADABSdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-10-04
    Type: Initial release
  • Version 1.1: 2024-11-13
    Changes: Data collection, Database references, Structure summary