Abstract：
:We previously showed that a variety of amino acid substitutions at positions 58 and 59 in the V(H) CDR2 of an anti-arsonate (Ars) antibody Fab simultaneously resulted in increased or unaltered affinity for Ars and substantially enhanced affinity for DNA. To test the generality of these observations, we generated and characterized several antibody phage display libraries of this Fab containing random amino acid substitutions at V(H) CDR2 position 55. Position 55 was randomized in two contexts; in the unmutated V region, and in a previously isolated V(H) CDR2 position 58 and 59 mutant that displayed binding to both Ars and ssDNA. In the unmutated V region context, mutants that displayed strong binding to both Ars and DNA nearly exclusively contained Arginine residues at position 55. In the context of the 58 and 59 mutations, a variety of amino acid residues were observed at position 55 among mutants that bound strongly to both Ars and DNA, including Arginine, Lysine and Serine. None of these position 55 mutations measurable altered affinity for Ars. These data substantiate the view that "dual reactive" antibodies--specific for both a foreign and an autoantigen--are frequently generated in vivo via hypermutation during immune responses driven by the foreign antigen.
journal_name
Mol Immunoljournal_title
Molecular immunologyauthors
Hande S,Manser Tdoi
10.1016/s0161-5890(98)00005-4subject
Has Abstractpub_date
1997-12-01 00:00:00pages
1281-90issue
18eissn
0161-5890issn
1872-9142pii
S0161589098000054journal_volume
34pub_type
杂志文章abstract：:In the host a diverse collection of endogenous danger signals is constantly generated consisting of waste material as protein aggregates or crystalline materials that are recognized and handled by soluble pattern recognition receptors and phagocytic cells of the innate immune system. These signals may under certain ci...
journal_title：Molecular immunology
pub_type： 杂志文章,评审
doi：10.1016/j.molimm.2016.09.019
更新日期：2017-04-01 00:00:00
abstract：:Inhibition of C5a by antibodies has been demonstrated to dramatically improve survival in various sepsis models in mice and rats. The structural basis of C5a mediated bioactivity and C5a antibody mediated neutralization are of interesting to be investigated. In the previous study, we obtained a novel functional mouse ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2011.03.013
更新日期：2011-07-01 00:00:00
abstract：:Although the lambda-bearing antibodies represent only 5% of the total mouse serum immunoglobulins, some antigens such as B1355 dextran (alpha (1-3)Dex), the 4-hydroxy-3-nitrophenyl acetyl (NP) and 2,4-dinitro or 2,4,6-trinitrophenyl (DNP/TNP) antigens can induce lambda-positive immune responses. In contrast to the lam...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(88)90061-2
更新日期：1988-02-01 00:00:00
abstract：:Dendritic cells (DCs) are the professional antigen-presenting cells (APC) which efficiently prime the immune response or induce tolerance. We recently identified Dendritic Cell Specific TrAnsMembrane Protein (DC-STAMP), a novel 470 amino acid protein preferentially expressed by dendritic cells. Previously we demonstra...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2010.04.019
更新日期：2010-07-01 00:00:00
abstract：BACKGROUND:Individuals genetically deficient of properdin are more susceptible to meningococcal disease. Likewise low concentration or decreased biological activity of mannose-binding lectin (MBL) is associated with higher incidence of bacterial infections during childhood. In this study we report our findings in a Dan...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2005.02.017
更新日期：2006-02-01 00:00:00
abstract：:Rabbit antisera specific for horseradish peroxidase inhibit the catalytic activity of the enzyme. All antibodies prepared against the holoenzyme react with the peroxidase apoenzyme. However, only a minority (30-45%) of the total antiperoxidase pool cross react with reduced and alkylated apoenzymes. The antibodies inhi...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(82)90366-2
更新日期：1982-05-01 00:00:00
abstract：:Discordant xenografts surviving the initial hyperacute rejection phase may be subject to cellular rejection processes mediated by infiltrating leukocytes including T cells, NK cells and monocytes. The stable adhesion of these cell types to endothelial cells is due to the molecular interaction of the integrins VLA-4 an...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/s0161-5890(97)00042-4
更新日期：1997-04-01 00:00:00
abstract：:The developmental regulation of antigen receptor gene transcription and recombination are mediated by cis regulatory elements. At the T cell receptor beta chain locus (TCRbeta), two DNase I hypersensitive sites within the Jbeta2-Cbeta2 intron contained binding sites for NF-kappaB and additional nuclear factors and wer...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/s0161-5890(01)00031-1
更新日期：2001-01-01 00:00:00
abstract：:Protein kinases have been implicated in a number of regulatory mechanisms including signal transduction in many cells. To address the possibility that the large granular lymphocyte (LGL) also uses one or more unique protein kinases for LGL functions, an efficient method was developed to obtain partial cDNA clones for ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(91)90153-b
更新日期：1991-04-01 00:00:00
abstract：:1,25-Dihydroxyvitamin D3 (1,25-D3) is known to have potent inhibitory effects on human peripheral blood mononuclear cell (PBMC) functions. Previous experiments suggest that addition of interleukin-2 (IL-2) to cell cultures can reverse the antiproliferative action of 1,25-D3. Previous studies have also shown that the C...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(90)90064-7
更新日期：1990-01-01 00:00:00
abstract：:The fifth component of human complement (C5), under physiological salt conditions, bound firmly to phenyl-Sepharose. This indicated the presence of hydrophobic sites on C5. These sites may play an important role in C5 haemolytic activity since this activity was inhibited by chaotropic ions (Mg2+, SCN-, I-) at relative...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(88)90031-4
更新日期：1988-04-01 00:00:00
abstract：:The molecular structure of protein and epitope mapping strategies are required to engineer the epitopes of a protein. In the present study, IgE binding regions of osmotin were identified and mutated to obtain hypoallergenic variant. The three dimensional (3-D) model of osmotin obtained by homology modeling comprised o...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2014.10.019
更新日期：2015-03-01 00:00:00
abstract：:The preTCR, gammadeltaTCR, and alphabetaTCR are the three isoforms of the T cell antigen receptor that are expressed during thymocyte development. Signaling by these isoforms is required at different stages of T cell development for lineage commitment, thymocyte maturation, and repertoire selection. All three isoforms...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2009.09.015
更新日期：2009-12-01 00:00:00
abstract：:We have previously noted that a specific amino acid sequence could form the second framework region of human, mouse and rabbit immunoglobulin light chains, suggesting that this sequence has been preserved for 80 million years. Through divergent evolution, each species has acquired a different set of framework region s...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(92)90047-2
更新日期：1992-09-01 00:00:00
abstract：:Effective use of adenovirus-5 (Ad5) in cancer therapy is heavily dependent on the degree to which the virus's natural tropism can be subverted to one that favours tumour cells. This is normally achieved through either engineering of the viral fiber knob or the use of bispecific adaptors that display both adenovirus an...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2015.08.014
更新日期：2015-12-01 00:00:00
abstract：:The antigenic structural features of alpha-lactalbumin have been investigated using a radioimmunoassay, peptide inhibition of the quantitative precipitin reaction, and by immunodiffusion analysis after chemical modification of the molecule. Antigenic activity (in rabbits) was localized to several peptic fragments and ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(82)90192-4
更新日期：1982-11-01 00:00:00
abstract：:Signal transduction by the B cell receptor (BCR) is an absolute requirement for the selection and development of B lymphocytes at multiple checkpoints. Binding to antigen via the BCR is complemented by a co-stimulus delivered through accessory and co-stimulatory cell surface molecules that regulate the signalling thre...
journal_title：Molecular immunology
pub_type：
doi：10.1016/s0161-5890(02)00203-1
更新日期：2003-01-01 00:00:00
abstract：:A phosphorylcholine (PC)-binding IgG (Mab2) antibody produced by a hybridoma derived from a BALB/c mouse which had been immunized against Trichinella spiralis was found to bind to the immunizing antigen (TSC) but not to other PC-associated antigens such as pneumococcal antigen (PNC) and PC-conjugated ovalbumin (PC-OVA...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(94)90106-6
更新日期：1994-10-01 00:00:00
abstract：:Bombyx mori nucleopolyhedrovirus (BmNPV) is one of the main pathogens that seriously affect the sustainable development of sericulture industry. Inhibition of Hsp90 by Hsp90 inhibitor, geldanamycin (GA) significantly suppresses BmNPV proliferation in Bombyx mori, while the functional mechanism is not clear. LncRNA has...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2020.09.014
更新日期：2020-11-01 00:00:00
abstract：:Degenerate PCR was used to isolate a 221-base pair nucleotide sequence of a new crustin-like antibacterial peptide from the haemocytes of the European lobster, Homarus gammarus. Rapid amplification of cDNA ends was used to extend the sequence to determine the complete open reading frame and un-translated regions. The ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2005.07.029
更新日期：2006-03-01 00:00:00
abstract：:The human monocyte-like cell line, U-937, was shown to synthesize and secrete C3 by hemolytic assays, radioimmunoassays and metabolic labeling experiments. The daily synthesis of antigenic C3 by unstimulated U-937 cells was low (about 3 ng/10(6) cells/24 hr) over a 3 day period. Induction of the cells to differentiate...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(87)90079-4
更新日期：1987-10-01 00:00:00
abstract：:The myobacterial factors and the associated mechanism by which Mycobacterium tuberculosis (Mtb) evades the host immune surveillance system remain widely unexplored. Here, we found that overexpressing Rv1016c, a mannosylated protein of M. tuberculosis in BCG (rBCG-Rv1016c) led to increased virulence of the recombined B...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2019.02.021
更新日期：2019-05-01 00:00:00
abstract：:A highly purified preparation of a monoclonal antibody to vasoactive intestinal peptide (VIP) was analysed by gel filtration. Three peaks of VIP hydrolysing activity were observed, corresponding to the 150 kDa tetramer IgG, 80 kDa dimer of the heavy and light chains (H-L dimer) and 25 kDa L chain monomer. The hydrolyt...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(96)00021-1
更新日期：1996-05-01 00:00:00
abstract：:Different proteins, even without sequence similarity, still can contain similar surface regions involved in protein-protein interactions with common target. These regions can serve as structural determinants of cross-reactivity and molecular mimicry. Molecular mimicry, defined as the process in which structural proper...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2009.10.020
更新日期：2010-01-01 00:00:00
abstract：:Programmed cell death protein 1 (PD1) is a cell-surface receptor that plays a vital regulatory role in suppressing inflammatory T cell activity; therefore, it is an ideal target for T cell-redirecting therapies. Here, we describe a cynomolgus macaque model for studying the transfer of PD1-modified T cells. We develope...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2020.05.007
更新日期：2020-08-01 00:00:00
abstract：:Jackfruit lectin, jacalin, prepared from two batches of jackfruit seeds showed a different specificity in precipitating reaction in Agarose gel with various purified immunoglobulins and secretory components. Jacalin-P, extracted from jackfruit seeds from the Philippines, reacts only with serum IgA and secretory IgA of...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(87)90169-6
更新日期：1987-11-01 00:00:00
abstract：:Covalent Superose microspheres-bound C3b was used as a model system to simplify the analysis of antigen-bound C3b modifications during antigen processing. The model was set up using purified C3 and Superose-bound trypsin. C3b was covalently bound to Superose through an ester link, as indicated by lability to hydroxyla...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(93)90009-z
更新日期：1993-07-01 00:00:00
abstract：:Activation-induced cytidine deaminase (AID) is critical for immunoglobulin (Ig) diversification in B cells. The majority of evidence supports the model that AID modifies Ig genes at the DNA level by deaminating cytosines into uracils. The mutagenic activity is largely restricted to Ig genes to avoid genomic damage in ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2009.07.027
更新日期：2009-10-01 00:00:00
abstract：:Type 2 Diabetes (T2D) is a disease of increasing importance and represents a growing burden on global healthcare and human health. In T2D, loss of effectiveness of insulin signaling in peripheral tissues cannot be compensated for by adequate insulin secretion, leading to hyperglycemia and resultant complications. In r...
journal_title：Molecular immunology
pub_type： 杂志文章,评审
doi：10.1016/j.molimm.2016.12.009
更新日期：2017-04-01 00:00:00
abstract：:This study describes serological and biochemical properties of a novel MHC class I molecule. The mutant H-2Ksm1 molecule was discovered in a mouse because of loss of reactivity of its peripheral blood lymphocytes to monoclonal antibodies. This mutation in the H-2Ks molecule is the first in vivo mutation described that...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(92)90223-k
更新日期：1992-12-01 00:00:00
