skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Experimental mapping of soluble protein domains using a hierarchical approach

Journal Article · · Nucleic Acids Research
DOI:https://doi.org/10.1093/nar/gkr548· OSTI ID:1625489
 [1];  [2];  [3];  [4];  [2];  [2];  [2];  [2];  [1];  [1];  [2];  [2]
  1. National Centre for Scientific Research (CNRS), Toulouse (France). Institut de Pharmacologie et de Biologie Structurale (IPBS); Universite de Toulouse (France)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. INSERM, Toulouse (France). Cancer Research Center of Toulouse; Universite de Toulouse (France); Inst. Claudius Regaud, Toulouse (France)
  4. Univ. of Manitoba, Winnipeg, MB (Canada)

Exploring the function and 3D space of large multidomain protein targets often requires sophisticated experimentation to obtain the targets in a form suitable for structure determination. Screening methods capable of selecting well-expressed, soluble fragments from DNA libraries exist, but require the use of automation to maximize chances of picking a few good candidates. Here, we describe the use of an insertion dihydrofolate reductase (DHFR) vector to select in-frame fragments and a split-GFP assay technology to filter-out constructs that express insoluble protein fragments. With the incorporation of an IPCR step to create high density, focused sublibraries of fragments, this cost-effective method can be performed manually with no a priori knowledge of domain boundaries while permitting single amino acid resolution boundary mapping. We used it on the well-characterized p85a subunit of the phosphoinositide-3-kinase to demonstrate the robustness and efficiency of our methodology. We then successfully tested it onto the polyketide synthase PpsC from Mycobacterium tuberculosis, a potential drug target involved in the biosynthesis of complex lipids in the cell envelope. X-ray quality crystals from the acyl-transferase (AT), dehydratase (DH) and enoyl-reductase (ER) domains have been obtained.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1625489
Journal Information:
Nucleic Acids Research, Vol. 39, Issue 18; ISSN 0305-1048
Publisher:
Oxford University PressCopyright Statement
Country of Publication:
United States
Language:
English

References (37)

Engineering and characterization of a superfolder green fluorescent protein journal December 2005
Host Determinant Residue Lysine 627 Lies on the Surface of a Discrete, Folded Domain of Influenza Virus Polymerase PB2 Subunit journal August 2008
Solution structure and ligand-binding site of the SH3 domain of the p85α subunit of phosphatidylinositol 3-kinase journal May 1993
Rapid protein-folding assay using green fluorescent protein journal July 1999
Efficient random subcloning of DNA sheared in a recirculating point- sink flow system journal October 1996
Structure and nuclear import function of the C-terminal domain of influenza virus polymerase PB2 subunit journal February 2007
Identification of soluble protein fragments by gene fragmentation and genetic selection journal April 2008
Rapid and efficient cDNA library screening by self-ligation of inverse PCR products (SLIP) journal November 2005
Selecting Open Reading Frames From DNA journal May 2003
Random PCR-Based Screening for Soluble Domains Using Green Fluorescent Protein journal January 2001
Engineering soluble proteins for structural genomics journal August 2002
Automated, high-throughput platform for protein solubility screening using a split-GFP system journal November 2008
1H, 13C and 15N chemical shift referencing in biomolecular NMR journal September 1995
Testing the role of chain connectivity on the stability and structure of dihydrofolate reductase from E. coli : Fragment complementation and circular permutation reveal stable, alternatively folded forms journal January 2001
In vivo and in vitro protein solubility assays using split GFP journal September 2006
Crystal structure of the PI 3-kinase p85 amino-terminal SH2 domain and its phosphopeptide complexes journal April 1996
Complex lipid determines tissue-specific replication of Mycobacterium tuberculosis in mice journal November 1999
Fold space unlimited journal June 2009
Solution structure of the C-terminal SH2 domain of the p85α regulatory subunit of phosphoinositide 3-kinase 1 1Edited by P. E. Wright journal February 1998
Protein tagging and detection with engineered self-assembling fragments of green fluorescent protein journal January 2005
Crystal structure of the breakpoint cluster region-homology domain from phosphoinositide 3-kinase p85  subunit journal December 1996
NMRPipe: A multidimensional spectral processing system based on UNIX pipes journal November 1995
Identification of a virulence gene cluster of Mycobacterium tuberculosis by signature-tagged transposon mutagenesis journal October 1999
DNA fragmentation-based combinatorial approaches to soluble protein expression journal November 2007
Expression of Helicobacter pylori CagA domains by library-based construct screening: Expression of Helicobacter pylori CagA domains journal January 2009
The mycobacterium tuberculosis reca intein can be used in an orftrap to select for open reading frames journal January 1999
The structural basis for cap binding by influenza virus polymerase subunit PB2 journal May 2008
Structure and inhibition of herpesvirus DNA packaging terminase nuclease domain journal August 2010
A universal, vector-based system for nucleic acid reading-frame selection journal December 2002
ESPRIT: An automated, library-based method for mapping and soluble expression of protein domains from challenging targets journal October 2010
Constructing high complexity synthetic libraries of long ORFs using In Vitro selection journal March 2000
A system using convertible vectors for screening soluble recombinant proteins produced in Escherichia coli from randomly fragmented cDNAs journal December 2003
Combinatorial Domain Hunting: An effective approach for the identification of soluble protein domains adaptable to high-throughput applications journal October 2006
Colony filtration blot: a new screening method for soluble protein expression in Escherichia coli journal June 2005
A second-generation system for unbiased reading frame selection journal August 2004
A vector for the removal of deletion mutants from antibody libraries journal May 1992
Application of protein engineering to enhance crystallizability and improve crystal properties journal April 2010

Cited By (10)

High-Throughput Isolation of Soluble Protein Domains Using a Bipartite Split-GFP Complementation System book January 2019
The structures of type I polyketide synthases journal January 2012
Current methods in structural proteomics and its applications in biological sciences journal December 2011
DNA binding and reactivity assays based on in-frame protein expression journal January 2013
Development and Applications of Superfolder and Split Fluorescent Protein Detection Systems in Biology journal July 2019
Beyond the ribosome: proteome-wide secretability studies with SECRiFY posted_content January 2018
4′-Phosphopantetheinyl Transferase PptT, a New Drug Target Required for Mycobacterium tuberculosis Growth and Persistence In Vivo journal December 2012
Mass spectral determination of phosphopantetheinylation specificity for carrier proteins in Mycobacterium tuberculosis journal October 2016
Solution structure of a soluble fragment derived from a membrane protein by shotgun proteolysis journal April 2015
An efficient ORF selection system for DNA fragment libraries based on split beta-lactamase complementation journal July 2020