Search results for: kappa light chain clone I, Rabbit anti_
#21529291 // Save this To Up
Characterization of a monoclonal antibody to erythroid related factor.We describe here a novel IgG monoclonal antibody to erythroid-related factor (ERAF), also known as alpha hemoglobin stabilizing protein (AHSP) and eryththroid differentiation related factor (EDRF). Our antibody named PCE 5 is an IgG(1) kappa chain and is to the peptide sequence MVTVVE ranked highly in our active site analysis and binds with high affinity to ERAF.
Shiga Toxin 1 antibody, M Shiga Toxin 2 antibody, M Bacillus anthracis (Anthr Bacillus anthracis (Anthr Cholera toxin antibody, M Clostridium botulinum D T Clostridum difficile toxi Clostridum difficile toxi Clostridum difficile toxi Clostridum difficile toxi Clostridum difficile toxi Clostridum difficile toxi
#16751426 // Save this To Up
Molecular characterization of the anti-idiotypic immune response of a relapse-free neuroblastoma patient following antibody therapy: a possible vaccine against tumors of neuroectodermal origin?Neuroblastoma treatment with chimeric antidisialoganglioside GD2 Ab ch14.18 showed objective antitumor responses. Production of anti-idiotypic Abs (Ab2) against ch14.18 (Ab1) in some cases was positively correlated with a more favorable prognosis. According to Jerne's network theory, a subset of anti-idiotypic Abs (Ab2beta) carries an "internal image" of the Ag and induces Abs (Ab3) against the original Ag. The molecular origin of an anti-idiotypic Ab response in tumor patients was not investigated previously. To clone anti-idiotypic Abs, B cells of a ch14.18-treated neuroblastoma patient with Ab2 serum reactivity were used to construct Ab phage display libraries. After repeated biopannings on ch14.18 and its murine relative, anti-GD2 mAb 14G2a, we selected 40 highly specific clones. Sequence analysis revealed at least 10 of 40 clones with different Ig genes. Identities to putative germline genes ranged between 94.90 and 100% for V(H) and between 93.90 and 99.60% for V(L). An overall high rate of replacement mutations suggested a strong Ag-driven maturation of the anti-idiotypic Abs. Two clones that were analyzed further, GK2 and GK8, inhibited binding of ch14.18 to GD2 just as the patient's serum did. GK8 alone inhibited >80% of the patient's anti-idiotypic serum Abs in binding to ch14.18. Rabbits vaccinated with GK8 or GK2 (weaker) produced Ab3 against the original target Ag GD2. GK8 may be useful as a tumor vaccine for GD2-positive [corrected] tumors.
2568 related Products with: Molecular characterization of the anti-idiotypic immune response of a relapse-free neuroblastoma patient following antibody therapy: a possible vaccine against tumors of neuroectodermal origin?Primary antibody IRAK-2 Anti RAGE (Receptor for A Anti beta3 AR Human, Poly FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu Normal mouse multiple org Normal rat multiple organ Normal rat multiple organ Normal rat multiple organ Anti-BRF1(Butyrate respon Anti-(Immune Complex Fab2
#11289228 // Save this To Up
Development of a sandwich ELISA test for arginase measurement based on monoclonal antibodies.Human arginase was purified from liver and two monoclonal antibodies (MAbs), HA1 and HA2, were produced by fusion of spleen cells from an arginase-immunized BALB/c mouse and the NS-1 myeloma cell line. Both MAbs were of the IgG3 subclass and contained the kappa light chain. HA1 inhibited arginase activity, suggesting that it binds to the arginase catalytic site. HA1 and a horseradish peroxidase-conjugated polyclonal rabbit anti-human arginase antibody were used to develop a sandwich enzyme-linked immunoadsorbent assay (ELISA) for the quantification of human arginase, which can be used in the 1 to 300 ng/mL range. Because of its sensitivity and specificity, this MAb can be successfully applied to the ELISA quantification of arginase in serum and culture supernatants.
2008 related Products with: Development of a sandwich ELISA test for arginase measurement based on monoclonal antibodies.Glucagon ELISA KIT, Rat G Rat monoclonal anti mouse Rat monoclonal anti mouse MOUSE ANTI HUMAN CD19 RPE MOUSE ANTI BOVINE ROTAVIR Anti AGO2 Human, Monoclon Anti AGO2 Mouse, Monoclon Anti AGO2 Human, Monoclon Anti Ago1, Monoclonal Ant Anti PIWIL1, Monoclonal A Anti AGO2 Mouse, Monoclon Anti Ago1, Monoclonal Ant
#9914695 // Save this To Up
A monoclonal antibody diagnoses active Fasciola infection in humans.Monoclonal antibodies (MABs) were produced after fusion of spleen cells of Fasciola antigen immunized BALB/c mice and non secreting murine myloma cells (P3x63 Ag8). Six MAbs, showing the highest reactivity with purified Fasciola antigen, were prepared. All 6 MABs were IgG2 with Kappa light chain. Reactive epitopes recognized by the six MAbs were glycoprotein in nature, and each MAb recognized a single epitope of Fasciola antigen. No cros reactions were observed with Schistosomal AWSA, hydatid Ag and Entamoeba Ag. EITB technique showed a specific diagnostic band at 17.5 kDa for each of the six MAbs. Anti-Fasciola MAb (AD2) was conjugated with peroxidase and was used with anti-rabbit anti-Fasciola polyclonal antibody in sandwich-ELISA to detect circulating Fasciola antigen in serum and urine samples of 57 fascioliasis patients, 51 schistosomiasis patients, 45 patients infected with other parasites and 47 healthy controls. Sensitivity of the assay in detection of circulating Fasciola antigen in sera and urines of Fasciola infected patients was 100%. The specificity of the assay was calculated among patients infected with schistosomiasis and other parasites and was 98% in serum and 97% in urine. A positive correlation was found between levels of circulating Fasciola antigen in serum and urine samples of fascioliasis patients (r = 0.825, p < 0.05).
Anti AGO2 Human, Monoclon Anti AGO2 Mouse, Monoclon Anti AGO2 Human, Monoclon Anti AGO2 Mouse, Monoclon HIV1 integrase antibody, Anti 3 DG imidazolone Mon Mouse Anti-Insulin(1G11) Mouse Anti-Insulin(1G11) Mouse Anti-Insulin(1G11) Mouse Anti-Insulin(1G11) Mouse Anti-Insulin(1G11) Mouse Anti-Insulin(1G11)
#9224393 // Save this To Up
Expression of two novel recombinant proteins from aortic adventitia (kappafibs) sharing amino acid sequences with cytomegalovirus.We have recently purified and partially sequenced a microfibrillar protein from human aortic adventitia (aneurysm-associated antigenic protein, 40 kDa [AAAP-40]) that is immunoreactive with immunoglobulin (IgG) from the wall of abdominal aortic aneurysms (AAAs). It shares motifs with Ig kappa (which may act as a binding site for interaction with integrins), cytomegalovirus (which may be a molecular mimic in the pathogenesis of AAA), and vitronectin and the fibrinogens. A cDNA library was constructed from the aortic adventitia of a AAA. The library was screened with either rabbit anti-vitronectin antibody or rabbit anti-fibrinogen antibody. Positive plaques were purified and expressed in a strain of Escherichia coli. The clone sequences were analyzed. The expressed proteins were separated by SDS/PAGE and the immunoblots were probed with either AAA IgG or anti-human Ig kappa antibody. Experimental cell lines, transfected with the clones (clones 1 and 5), synthesized recombinant proteins (rAAAP-CL1 and rAAAP-CL5), detectable in Western immunoblots with AAA IgG. A prediction of the tertiary structure resembles well-characterized cell adhesion molecules. These findings suggest that there is a novel family of matrix proteins that may use immunoglobulin motifs as binding sites for cellular integrins and that there are matrix proteins in addition to AAAP-40 that may serve as autoantigens in the pathogenesis of AAA disease.
1280 related Products with: Expression of two novel recombinant proteins from aortic adventitia (kappafibs) sharing amino acid sequences with cytomegalovirus.Fibroblast Growth Factor Fibroblast Growth Factor Recombinant Human FGF1 FG Recombinant Human FGF1 FG Recombinant Human FGF1 FG Recombinant Mouse FGF1 FG Recombinant Mouse FGF1 FG Recombinant Mouse FGF1 FG Recombinant Human FGF1 FG Recombinant Human FGF1 FG Recombinant Human FGF1 FG 5 (2 Aminoethylamino) 1 n
#2125667 // Save this To Up
[A double monoclonal IgG1-kappa and IgG3-lambda with electrophoretically same mobility in a single patient].The serum from a 78-year-old male (SY) with abdominal aneurysm was shown to contain monoclonal protein (MP) of IgG. Immunoelectrophoresis (IEP) and immunofixation electrophoresis (IFE) of SY serum revealed MP reacted with both of anti kappa and anti lambda antisera. To see whether the monoclonal IgG molecule possesses both types of light chains, an attempt to separate MPs isolated by zone electrophoresis was made by affinity chromatography using anti kappa and anti lambda Sepharose 4 B conjugates. Immunodiffusion (ID) of these separated MPs showed that kappa type of MP (MP-kappa) was IgG1, while lambda type of MP (MP-lambda) was IgG3. For preparation of anti-idiotype antibodies (Aid) against MP-lambda, antisera against MP-lambda raised in rabbits by immunization with affinity-chromatographic purified MP-lambda was absorbed with solid phase normal human serum. ID and IFE of these MPs (original MP, MP-lambda and MP-kappa) revealed MP-kappa did not react with Aid, suggesting idiotype of MP-kappa was different from that of MP-lambda. These results indicate that two types of MPs derived from different B cell clones happen to have same mobility electrophoretically.
1319 related Products with: [A double monoclonal IgG1-kappa and IgG3-lambda with electrophoretically same mobility in a single patient].anti HSV (II) gB IgG1 (mo anti HCMV IE pp65 IgG1 (m anti HCMV gB IgG1 (monocl HIV1 integrase antibody, Shiga Toxin 1 antibody, M Shiga Toxin 2 antibody, M Adenovirus antibody, Mono Barbiturate antibody, Mon Benzodiazepine antibody, Benzodiazepine antibody, COX2 antibody, Monoclonal hCG beta antibody, Monocl
#2127927 // Save this To Up
Production of a bi-specific monoclonal antibody recognizing mouse kappa light chains and horseradish peroxidase. Applications in immunoassays.The production of a bi-specific monoclonal antibody that simultaneously recognizes mouse kappa light chains and horseradish peroxidase (HRP) for use as a general developing reagent in a wide variety of immunobased techniques is described. This antibody, named McC10, was produced by the fusion of an aminopterin-sensitive interspecies hybridoma which secretes rat monoclonal antibodies against HRP (RAP2.Ag) and splenocytes from a rat immunized with whole mouse immunoglobulin (Ig)G. The hybrid-hybridoma generated from this fusion expresses and secretes rat Igs of the IgG1 and IgG2a subclasses, as determined by radial immunodiffusion. In competitive binding solid-phase enzymatic assays, McC10 was found to cross-react with all four mouse IgG subclasses as well as mouse kappa light chains. In contrast, in this type of assay, McC10 did not appear to recognize mouse IgA, IgM or lambda light chains. However, IgM-bearing kappa light chains were recognized by immunocytochemistry. Epitope specificity of this bi-specific antibody was more clearly determined on immunoblots where McC10 was found to exclusively recognize mouse kappa light chains and display no cross-reactivity with mouse Ig heavy chains nor with kappa light chains from rat or rabbit. In addition, McC10 was used successfully in two-step immunocytochemistry (ICC) for the localization of enkephalin, nerve growth factor (NGF) receptor and paired helical filament-immunoreactive sites in rat brain, rat skin and human brain, respectively, using mouse IgG's and IgM's as primary antibodies. McC10 compared favourably with peroxidase-anti-peroxidase (PAP) ICC with respect to sensitivity but was markedly superior with respect to specificity when used in fixed human brain or rat skin.(ABSTRACT TRUNCATED AT 250 WORDS)
2038 related Products with: Production of a bi-specific monoclonal antibody recognizing mouse kappa light chains and horseradish peroxidase. Applications in immunoassays.MOUSE ANTI BOVINE ROTAVIR MOUSE ANTI CANINE DISTEMP MOUSE ANTI HUMAN CD15, Pr MOUSE ANTI HUMAN CD19 RPE MOUSE ANTI HUMAN CD15, Pr MOUSE ANTI APAAP COMPLEX, Anti AGO2 Mouse, Monoclon Anti AGO2 Mouse, Monoclon HIV1 integrase antibody, Shiga Toxin 1 antibody, M Shiga Toxin 2 antibody, M Adenovirus antibody, Mono
#1704478 // Save this To Up
Idiotypical identity of IgG myeloma protein with monoclonal IgM, Bence Jones protein, and Fv derived from one patient.Serum from a patient (KK) with IgG2-lambda myeloma was shown to contain multiple paraproteins corresponding to an IgM-lambda monoclonal protein (MMP), a lambda-type Bence Jones protein (BJP), and a 30 kDa component in addition to the IgG2 myeloma protein (GMP). These proteins possessed common idiotypic determinants, as judged by their monoclonal reactivity with rabbit anti-GMP idiotype antibody (aId) in the immunofixation electrophoresis. Analysis with aId absorbed with either H or L chain of GMP revealed that the 30 kDa component shared both VH and VL with GMP and MMP, while BJP carried only the VL idiotype. The 30 kDa component, however, failed to react with antibody to either the mu, gamma, alpha, kappa, or lambda isotype, indicating that it had an Fv-like molecular composition. These results suggest that myeloma cells of KK had diverged from the same precursor B cell clone to produce MPs of different isotypes and altered molecular constructions.
1056 related Products with: Idiotypical identity of IgG myeloma protein with monoclonal IgM, Bence Jones protein, and Fv derived from one patient.Anti C Reactive Protein A anti GSK3 Beta IgG2a (mon anti HIV 2 gp36 IgG1 (mon anti HIV 1 p24 IgG1 (mono anti HIV 1 p55 17 IgG1 (m anti HIV 1 p17 IgG1 (mono anti HIV 1 gp41 IgG1 (mon anti HCV core IgG2a (mono anti HCV core IgG2a (mono anti HCV NS4 IgG2a (monoc anti FAS IgG1 (monoclonal anti FAS IgG1 (monoclonal
#3122215 // Save this To Up
Structure of a third murine immunoglobulin lambda light chain variable region that is expressed in laboratory mice.Recently, we reported evidence for the existence of an immunoglobulin lambda light chain (lambda x) whose variable region differs from those encoded by the known V lambda gene segments V lambda 1 and V lambda 2. Expression of lambda x was detected in some hybridomas elicited by treatment of a BALB/c mouse with rabbit anti-lambda 2 antibodies coupled to bacterial lipopolysaccharide [Sanchez, P. & Cazenave, P.-A. (1987) J. Exp. Med. 166, 265-270]. We constructed a cDNA clone from one hybridoma (B6) that expresses the lambda x chain and determined the complete nucleotide sequence. The deduced amino acid sequence of V lambda x is 30-33% identical with those encoded by V lambda 1 and V lambda 2 and by V kappa gene segments. The third hypervariable region of V lambda x is four codons longer than those of the other murine variable gene segments. The expression of lambda x requires a genomic rearrangement that juxtaposes the V lambda x gene with the J lambda 2-C lambda 2 joining-constant gene pair. Rabbit anti-V lambda x antibodies detected the lambda x light chain in the normal sera of all laboratory mice tested. Lambda x expression seems to be independent of lambda 1 expression, since both SJL and SJA strains, which are defective in lambda 1 production, express normal levels of lambda x chain.
2926 related Products with: Structure of a third murine immunoglobulin lambda light chain variable region that is expressed in laboratory mice.Goat Anti-Human Laforin ( Mouse Anti-Human Ig Lambd Mouse Anti-Human Ig Lambd Mouse Anti-Human Lambda L Mouse Anti-Human Lambda L Mouse Anti-Human Lambda L Goat Anti-Human Lambda Li Goat Anti-Human Lambda Li Goat Anti-Human Lambda Li Goat Anti-Human Lambda Li Goat Anti-Human Lambda Li Goat Anti-Human Lambda Li
#6434941 // Save this To Up
Idiotypic cross-reactivity of low-affinity anti-fluorescyl monoclonal antibodies.Previous studies concerning structure-function relationships of anti-fluorescyl hybridoma proteins utilized primarily high-affinity proteins (Ka greater than 5.0 X 10(7) M-1) possessing distinct idiotypes. Low-affinity anti-fluorescyl monoclonal antibodies, predominantly IgGl or IgG2a possessing kappa light chains were analyzed. Two fusions produced 18 monoclonals, 13 binding fluorescein with a low affinity (less than or equal to 3.0 X 10(6) M-1) and five possessing high affinities (greater than or equal to 5.3 X 10(8) M-1). Solid-phase idiotype assays, utilizing rabbit anti-idiotype reagents against two low-affinity proteins (3-13 and 3-17), showed that all the low-affinity clones (except 2-9 and 2-21) were capable of inhibiting (40-100%) these two idiotype-anti-idiotype interactions while no high-affinity proteins inhibited them. The interactions with 3-13 and 3-17 were inhibited 100 and 88%, respectively, by free fluorescein. When these idiotype-anti-idiotype interactions were inhibited with increasing concns of heterologous hybridoma proteins, three clones inhibited both interactions as effectively as the homologous proteins at all concns tested and inhibition reached 100%. These three clones appeared to possess all the idiotopes that the anti-3-13 and anti-3-17 reagents detected on 3-13 and 3-17. Screening of eight high-affinity anti-fluorescyl proteins previously produced [Kranz and Voss, Molec. Immun. 18, 889-898 (1981a)] identified a single clone [20-4-4 (Ka = 5.0 X 10(7) M-1)] significantly inhibiting the 3-13 and 3-17 interactions (71.0 and 63.6%, respectively). In addition, recombination experiments utilizing H- and L-chains derived from three low-affinity and three high-affinity antibodies resulted in reformation of active sites in all six heterologous combinations when both chains were derived from low-affinity antibodies, and in only one of six combinations when both chains were derived from high-affinity molecules. Thus, the apparent lack of private idiotopes on clones 3-13 and 3-17 and the presence of these idiotopes (or cross-reactive ones) on 11 of 13 low-affinity antibodies and on one of 13 high-affinity antibodies may indicate that clones 3-13 and 3-17 are encoded by germline genes. The H- and L-chain recombination experiments indicated that the idiotype and affinity of parental molecules may be involved in H- and L-chain association.
1830 related Products with: Idiotypic cross-reactivity of low-affinity anti-fluorescyl monoclonal antibodies.Mouse monoclonal anti-fla Anti AGO2 Human, Monoclon Anti AGO2 Mouse, Monoclon Anti AGO2 Human, Monoclon Anti Ago1, Monoclonal Ant Anti PIWIL1, Monoclonal A Anti AGO2 Mouse, Monoclon Anti Ago1, Monoclonal Ant Anti Human AGO3, Monoclon Viral antibodies, anti-R Signal Transduction Anti Signal Transduction Anti
Voortstraat 49, 1910 Kampenhout BELGIUM
Tel 0032 16 58 90 45 Fax 0032 16 50 90 45
9, rue Lagrange, 75005 Paris
Tel 01 43 25 01 50 Fax 01 43 25 01 60
52062 Aachen Deutschland
Tel 0241 40 08 90 86 Fax 0241 55 91 05 36
Howard Frank Turnberry House
1404-1410 High Road
Whetstone London N20 9BH
Tel 020 3393 8531 Fax 020 8445 9411
Schweiz Züri +41435006251
Česká republika Praha +420246019719
Ireland Dublin +35316526556
Norge Oslo +4721031366
Finland Helsset +358942419041
Sverige Stockholm +46852503438
Ελλάς Αθήνα +302111768494
Magyarország Budapest +3619980547
GENTAUR Poland Sp. z o.o.
ul. Grunwaldzka 88/A m.2
81-771 Sopot, Poland
Tel 058 710 33 44
Fax 058 710 33 48
GENTAUR Nederland BV
5521 DG Eersel Nederland
Tel 0208-080893 Fax 0497-517897
Piazza Giacomo Matteotti, 6, 24122 Bergamo
Tel 02 36 00 65 93 Fax 02 36 00 65 94
53 Iskar Str. 1191 Kokalyane, Sofia