Abstract:
:A kappa-light chain from a Fab expression system was truncated by the insertion of a stop codon in the gene sequence to produce a variable light (VL) single domain antibody (dAb). Here, we describe the expression of dAb in the periplasm of Escherichia coli through fermentation in a defined media. Immunoglobulin binding domains from peptostreptococcal protein L (PpL) have been shown to bind specifically to kappa-light chains. We have produced recombinant PpL, at high yield, and this was used to custom-produce PpL-Sepharose affinity columns. Here, we show that the affinity purification of VL dAb by this method is simple and efficient with no apparent loss in protein at any stage. The truncated dAb protein product was confirmed by electrospray mass spectrometry and N-terminal sequencing. When analyzed by SDS-PAGE it was shown to be over 95% pure and produced at yields of 35-65 mg/L of culture medium. The dAb protein produced was shown by NMR and CD to be a folded beta-sheet domain. This domain is bound by PpL with a Kd of approximately 50 nM as determined by stopped-flow fluorimetry.
journal_name
Protein Expr Purifjournal_title
Protein expression and purificationauthors
Cossins AJ,Harrison S,Popplewell AG,Gore MGdoi
10.1016/j.pep.2006.07.013subject
Has Abstractpub_date
2007-02-01 00:00:00pages
253-9issue
2eissn
1046-5928issn
1096-0279pii
S1046-5928(06)00226-9journal_volume
51pub_type
杂志文章abstract::The P(II) proteins comprise a family of widely distributed signal transduction proteins that integrate the signals of cellular nitrogen, carbon and energy status, and then regulate, by protein-protein interaction, the activity of a variety of target proteins including enzymes, transcriptional regulators and membrane t...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2011.09.008
更新日期:2012-01-01 00:00:00
abstract::Expressed protein libraries are becoming a critical tool for new target discovery in the pharmaceutical industry. In order to get the most meaningful and comprehensive results from protein library screens, it is essential to have library proteins in their native conformation with proper post-translation modifications....
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2011.05.011
更新日期:2011-09-01 00:00:00
abstract::Ribulose-1,5-bisphosphate carboxylase/oxygenase large subunit epsilon N-methyltransferase (Protein methylase III, Rubisco LSMT, EC 2.1.1.43) catalyzes methylation of the epsilon-amino group of Lys-14 in the large subunit of Rubisco. In this paper, an affinity purification procedure for pea (Pisum sativum L. cv Laxton'...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1006/prep.1995.1070
更新日期:1995-08-01 00:00:00
abstract::We have used Ni(2+)-affinity chromatography as a rapid and efficient method to purify a sensory rhodopsin I (SR-I) derivative containing six consecutive histidine residues at its C-terminus (His-tagged SR-I). The protein was expressed in Halobacterium salinarium by integrating the corresponding gene at the chromosomal...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1006/prep.1995.0009
更新日期:1995-12-01 00:00:00
abstract::Disulfide bonds are normally formed after a polypeptide has been exported from the reducing environment of the cytoplasm into a more oxidizing compartment, such as the bacterial periplasm. Recently, we showed that in Escherichia coli trxB gor mutants, in which the reduction of thioredoxin and glutathione is impaired, ...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1006/prep.2001.1520
更新日期:2001-11-01 00:00:00
abstract::Envelope glycoprotein E of the dengue virus, which plays a crucial role in its entry into host cells, has an immunogenic domain III (EIII, amino acids 297-394), which is capable of inducing neutralizing antibodies. However, mice immunized with EIII protein without adjuvant elicited low immune responses. To improve low...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2010.07.013
更新日期:2010-12-01 00:00:00
abstract::Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL), which is capable of selectively inducing apoptosis of cancer cells, is a potential targeted drug for cancer therapy. The TRAIL protein induces apoptosis only in trimeric form. However, the recombinant soluble TRAIL (sTRAIL) trimer has low stability and a...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2015.08.004
更新日期:2015-11-01 00:00:00
abstract::Wild-type and deglycosylated forms of human prostate-specific antigen were expressed in Chinese hamster ovary (CHO) cells as zymogens. ProPSA was collected from conditioned medium and purified using a single cation-exchange chromatographic step for the deglycosylated form and cation-exchange followed by gel filtration...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1006/prep.2000.1342
更新日期:2000-12-01 00:00:00
abstract::Sarcotoxin IA is an antibacterial peptide that is secreted by a meat-fly Sarcophaga peregrina larva in response to a hypodermic injury or bacterial infection. This peptide is highly toxic against a broad spectrum of both Gram-positive and Gram-negative bacteria and lethal to microbes even at nanomolar concentrations. ...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/s1046-5928(02)00697-6
更新日期:2003-04-01 00:00:00
abstract::The gene encoding a thermostable beta-glucosidase (cel3a) was isolated from the thermophilic fungus Talalaromyces emersonii by degenerate PCR and expressed in the filamentous fungus Trichoderma reesei. The cel3a gene encodes an 857 amino acid long protein with a calculated molecular weight of 90.59 kDa. Tal. emersonii...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2004.08.006
更新日期:2004-12-01 00:00:00
abstract::Thymosin α1-thymopentin (Tα1-TP5) fusion peptide has been proved to be an immune regulator based on its higher immunoregulatory activity than Tα1 and TP5. To obtain Tα1-TP5 more effectively and economically, Tα1-TP5 was genetically fused to a self-cleaving intein-chitin binding domain tag for purification via chitin b...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2012.04.013
更新日期:2012-07-01 00:00:00
abstract::Recombinant cytochrome P450 (CYP or P450) enzymes are useful for drug metabolism research and thereby many expression and purification systems have been developed. Here, we provide a method for the purification of human P450s 3A4 and 1A2 expressed in Escherichia coli using mixed micelles containing anionic phospholipi...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2014.05.010
更新日期:2014-09-01 00:00:00
abstract::Plantaricin JK (PlnJK) is a Class IIb LAB bacteriocin that includes two peptides; i.e., PlnJ and PlnK, which can synergistically halt many types of gram-positive bacteria, including food spoilage organisms. Purification of these peptides from natural lactic acid bacteria is difficult therefore, their application remai...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2019.02.013
更新日期:2019-07-01 00:00:00
abstract::A cDNA clone, lambda GTHP1del, encoding glutathione transferase (GST) P1-1, was isolated from a human K562 erythroleukemia cell line cDNA library. The coding sequence was lacking the codons for the N-terminal 34 amino acids. A DNA segment was designed in order to obtain the missing portion and a structure representing...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1006/prep.1995.1034
更新日期:1995-06-01 00:00:00
abstract::The alpha-subunit of eukaryotic initiation factor eIF2 (eIF2alpha) plays an important role in the regulation of mRNA translation through modulation of the interaction of eIF2 and a second initiation factor, eIF2B. The interaction of the two proteins is regulated in vivo by phosphorylation of eIF2alpha at Ser51. In the...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1006/prep.1998.0863
更新日期:1998-04-01 00:00:00
abstract::Endostatin, a carboxy-terminal fragment of collagen XVIII, has been shown to act as an anti-angiogenic agent that specifically inhibits proliferation of endothelial cells and growth of various primary tumors. Here, we describe the expression by Chinese hamster ovary (CHO) cells of murine endostatin and of a tagged-fus...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2004.01.003
更新日期:2004-05-01 00:00:00
abstract::A method for the simplified, reproducible production of both normal and altered versions of human proinsulin has been developed. A polyhistidine/proinsulin fusion protein was expressed using a prokaryotic expression system and partially purified by affinity chromatography. Disulfide bonds within the polypeptide were f...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1006/prep.1998.1024
更新日期:1999-04-01 00:00:00
abstract::The gene encoding S. cerevisiae Kex2 protease derivative Kex2-667 (encoding the N-terminal 20th to 667th amino acid residues of Kex2 protease, containing the propeptide, catalytic domain, P domain and Ser/Thr enrichment region) and its 225th amino acid residue mutant K225L were overexpressed in Pichia pastoris. Protea...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2020.105725
更新日期:2020-12-01 00:00:00
abstract::A new procedure for the large-scale purification of the recombinant thermostable chitinase (Chi40) cloned from Streptomyces thermoviolaceus in various expression vectors in Escherichia coli is described. Chi40 was overproduced in the cytosolic and secreted forms. The cytosolic form (Chi40c) was highly overproduced and...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1006/prep.2001.1490
更新日期:2001-10-01 00:00:00
abstract::Cyclophilins are highly conserved proteins associated with peptidyl-prolyl cis-trans isomerase activity (PPIase). The present study was designed to analyze the biological activity of recombinant cyclophilin from the marine red algae Pyropia yezoensis (PyCyp). The cyclophilin gene from P. yezoensis was cloned into the ...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2020.105636
更新日期:2020-08-01 00:00:00
abstract::We present a new streptavidin-binding peptide for both the purification and the detection of recombinant proteins. The peptide possesses nanomolar-affinity for streptavidin and therefore was termed Nano-tag. The Nano-tag(15) is 15 amino acids long and binds to streptavidin with a dissociation constant of 4 nM and the ...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2003.08.014
更新日期:2004-01-01 00:00:00
abstract::Dengue virus causes serious diseases affecting people in tropical and sub-tropical regions. The nonstructural (NS) protein 2B is an integral membrane protein and important for the regulation of viral protease NS3, which is significant for virus replication. The NS2B-NS3 complex is an important drug target for treating...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2011.08.008
更新日期:2011-12-01 00:00:00
abstract::High affinity interaction between S-protein and S-peptide fragments of bovine pancreatic RNase A has been recently used for construction of molecular vehicles for targeted drug delivery. The vehicle is assembled as a complex of drug carrier conjugated S-protein with S-peptide-tagged targeting protein. To avoid random ...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/s1046-5928(02)00546-6
更新日期:2002-12-01 00:00:00
abstract::A functional IP10-scFv fusion protein retaining the antibody specificity for acidic isoferritin and chemokine function was produced at high level in Esherichia coli (E. coli). IP10-scFv gene from the recombinant plasmid pc3IP104c9 was subcloned into pET28a fused to N-terminal His-tag sequence in frame and overexpresse...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2005.05.016
更新日期:2006-01-01 00:00:00
abstract::S-locus protein kinase (SRK) is a receptor kinase that plays a critical role in self-recognition in the Brassicaceae self-incompatibility (SI) response. SRK is activated by binding of its ligand S-locus protein 11 (SP11) and subsequently induced phosphorylation of the intracellular kinase domain. However, a detailed a...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2015.09.020
更新日期:2017-03-01 00:00:00
abstract::To investigate the expression and purification of an unstable heterologous protein in Pichia pastoris, the cDNA of H5-lysozyme, a hen egg lysozyme mutant with a hydrophobic pentapeptide (Phe-Phe-Val-Ala-Pro) fused to the carboxyl terminus, was integrated into the genome of P. pastoris. It was found that medium composi...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/s1046-5928(02)00642-3
更新日期:2003-02-01 00:00:00
abstract::The Clostridium botulinum neurotoxins (BoNTs) are the most potent protein toxins known to humans. There are seven serotypes of the BoNTs (A-G), among which serotypes A, B, E and F are known to cause natural human intoxication. To date, eleven subtypes of LC/E, termed E1∼E11, have been identified. The LCs of BoNT/E wer...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2015.10.003
更新日期:2016-02-01 00:00:00
abstract::We have cloned ansB (YPTB1411) gene from Yersinia pseudotuberculosis Q66CJ2 and constructed stable inducible expression system that overproduce L-asparaginase from Y. pseudotuberculosis (YpA) in Escherichiacoli BL21 (DE3) cells. For purification of YpA we used Q-Sepharose and DEAE-Toyopearl column chromatography. We e...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2011.12.005
更新日期:2012-03-01 00:00:00
abstract::The purpose of this work was to characterize the functions of two sesquiterpene synthase genes from moso bamboo (Phyllostachys edulis). Two novel sesquiterpene synthase genes, belonging to the Tpsa subfamily, were isolated from moso bamboo. MoTPS2 was 1641 bp in length and encoded a protein of 63 kDa, whereas MoTPS6 w...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2015.11.019
更新日期:2016-04-01 00:00:00
abstract::Ciliary neurotrophic factor (CNTF) is a promising candidate for the treatment of neurodegenerative or metabolic diseases, but suffers rapid clearance in body. Herein we constructed a new long-acting recombinant human CNTF (rhCNTF) by genetic fusion with an albumin-binding domain (ABD) through a flexible peptide linker...
journal_title:Protein expression and purification
pub_type: 杂志文章
doi:10.1016/j.pep.2017.07.006
更新日期:2017-11-01 00:00:00