The isolation of recombinant cDNA clones expressing antigens found in Onchocerca volvulus infective larvae is described. To isolate such clones, an expression cDNA library constructed from adult O. volvulus RNA was screened with antiserum raised against infective larvae. One clone, designated lambda RAL-1 was characterized further. The recombinant antigen produced by lambda RAL-1 stimulates proliferation of peripheral blood mononuclear cells from O. volvulus infected humans. Lambda RAL-1 is derived from a 1450 bases message that encodes a protein with an apparent molecular weight of 42,000 in adult O. volvulus. The inserted DNA of lambda RAL-1 contains an open reading frame of 1008 bp. The amino acid sequence predicted by this open reading frame contains three repeats of the sequence KKPEDWD. The identification of clones such as lambda RAL-1 will provide quantities of purified antigens sufficient to begin to study the immune response to and explore the development of immunity against the infectious form of the parasite.
T R Unnasch, M Y Gallin, P T Soboslay, K D Erttmann, B M Greene
Title and authors | Publication | Year |
---|---|---|
Advancing a Human Onchocerciasis Vaccine From Antigen Discovery to Efficacy Studies Against Natural Infection of Cattle With Onchocerca ochengi.
Zhan B, Bottazzi ME, Hotez PJ, Lustigman S |
Frontiers in Cellular and Infection Microbiology | 2022 |
Vaccination of Gerbils with Bm-103 and Bm-RAL-2 Concurrently or as a Fusion Protein Confers Consistent and Improved Protection against Brugia malayi Infection
S Arumugam, J Wei, Z Liu, D Abraham, A Bell, ME Bottazzi, PJ Hotez, B Zhan, S Lustigman, TR Klei, E Mitre |
PLoS neglected tropical diseases | 2016 |
An Integrated Multiomics Approach to Identify Candidate Antigens for Serodiagnosis of Human Onchocerciasis
SN McNulty, BA Rosa, PU Fischer, JM Rumsey, P Erdmann-Gilmore, KC Curtis, S Specht, RR Townsend, GJ Weil, M Mitreva |
Molecular & cellular proteomics : MCP | 2015 |
Handbook of Laboratory Animal Science, Volume III, Third Edition: Animal Models
A Hansen |
Handbook of Laboratory Animal Science, Volume III, Third Edition: Animal Models | 2013 |
Advances in Parasitology
H Huang |
Chagas Disease, Part A | 2011 |
Nuclear hormone receptors in parasitic helminths
W Wu, PT LoVerde |
Molecular and Cellular Endocrinology | 2010 |
Animal Models for Tropical Parasitic Diseases
I Farah, M Ngotho, T Kariuki, M Jeneby, L Irura, N Maina, J Kagira, M Gicheru, J Hau |
Handbook of Laboratory Animal Science Second Edition Animal Models Volume III | 2004 |
Expression and characterization of Ov-47, a dominant antigen of Onchocerca volvulus
S Ghogomu |
Experimental Parasitology | 2002 |
Cloning of a cDNA encoding SjIrV1, a Schistosoma japonicum calcium-binding protein similar to calnexin, and expression of the recombinant protein in Escherichia coli1
C Hooker, P Brindley |
Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology | 1999 |
Onchocerca volvulus: Limited Heterogeneity in the Nuclear and Mitochondrial Genomes
EM Keddie, T Higazi, D Boakye, A Merriweather, MC Wooten, TR Unnasch |
Experimental Parasitology | 1999 |
Molecular cloning and functional expression of a cDNA encoding the major endoplasmic reticulum-associated calcium-binding protein, calreticulin, from Philippine strain Schistosoma japonicum
JC Scott, DP McManus |
Parasitology International | 1999 |
Molecular characterization of a calcium-binding protein from the filarial parasite Dirofilaria immitis1The nucleotide sequence reported in this paper has been submitted to the GenBank™ database with accession number AF052978.1
N Tsuji, TH Morales, VV Ozols, AB Carmody, R Chandrashekar |
Molecular and Biochemical Parasitology | 1998 |
Principles of Medical Biology
JO Jørgensen |
Principles of Medical Biology | 1998 |
Release of calreticulin from neutrophils may alter C1q-mediated immune functions
U Kishore, RD Sontheimer, KN Sastry, KS Zaner, EG Zappi, GR Hughes, MA Khamashta, P Strong, KB Reid, P Eggleton |
Biochemical Journal | 1997 |
Identification of an epitope of a recombinant Onchocerca volvulus protein that induces corneal pathology1Note: Nucleotide sequence data reported in this paper have been submitted to the GenBank™ data base with the accession number U124401
E Pearlman, E Diaconu, FE Hazlett, A Merriweather, TR Unnasch |
Molecular and Biochemical Parasitology | 1997 |
Advances in Molecular and Cell Biology
KJ Clemetson |
Advances in Molecular and Cell Biology | 1997 |
Review : Clinical relevance of calreticulin in systemic lupus erythematosus
P Eggleton, K Reid, U Kishore, RD Sontheimer |
Lupus | 1997 |
Ascaris suum: molecular cloning of an intermediate filament*
M Bisoffi, B Betschart |
Tropical Medicine & International Health | 1996 |
Human autoantibody to defensin: disease association with hyperreactive onchocerciasis (sowda)
MY Gallin, AB Jacobi, DW Büttner, O Schönberger, T Marti, KD Erttmann |
Journal of Experimental Medicine | 1995 |
Characterization of genes encoding members of the nuclear hormone receptor superfamily from Onchocerca volvulus
RA Yates, RS Tuan, KJ Shepley, TR Unnasch |
Molecular and Biochemical Parasitology | 1995 |
Cloning of a Schistosoma japonicum gene encoding an antigen with homology to calreticulin
MC Huggins, J Gibbs, NA Moloney |
Molecular and Biochemical Parasitology | 1995 |
A secreted calreticulin protein in ixodid tick (Amblyomma americanum) saliva
DC Jaworski, FA Simmen, W Lamoreaux, LB Coons, MT Muller, GR Needham |
Journal of Insect Physiology | 1995 |
The Schizosaccharomyces pombe Homologue of the Chaperone Calnexin Is Essential for Viability
M Jannatipour, LA Rokeach |
The Journal of biological chemistry | 1995 |
Vaccine Design
MF Powell, MJ Newman |
Vaccine Design | 1995 |
Pathways for Cytolysis
GM Griffiths, J Tschopp |
1995 | |
Covalent structure of bovine brain calreticulin
K Matsuoka, K Seta, Y Yamakawa, T Okuyama, T Shinoda, T Isobe |
Biochemical Journal | 1994 |
How N-linked oligosaccharides affect glycoprotein folding in the endoplasmic reticulum
A Helenius |
Molecular biology of the cell | 1994 |
Epitopes of the Onchocerca volvulus RAL1 antigen, a member of the calreticulin family of proteins, recognized by sera from patients with onchocerciasis
LA Rokeach, PA Zimmerman, TR Unnasch |
Infection and immunity | 1994 |
Identification and characterization of an Onchocerca volvulus cDNA clone encoding a highly immunogenic calponin-like protein
M Irvine, T Huima, AM Prince, S Lustigman |
Molecular and Biochemical Parasitology | 1994 |
The Onchocerca volvulus homologue of the multifunctional polypeptide protein disulfide isomerase
WR Wilson, RS Tuan, KJ Shepley, DO Freedman, BM Greene, K Awadzi, TR Unnasch |
Molecular and Biochemical Parasitology | 1994 |
Molecular cloning of Brugia malayi antigens for diagnosis of lymphatic filariasis
R Chandrashekar, KC Curtis, RM Ramzy, F Liftis, BW Li, GJ Weil |
Molecular and Biochemical Parasitology | 1994 |
Parasitic Infections and the Immune System
F Kierszenbaum, MB Sztein |
Parasitic Infections and the Immune System | 1994 |
Human, Mouse, and Rat Calnexin cDNA Cloning: Identification of Potential Calcium Binding Motifs and Gene Localization to Human Chromosome 5
LW Tjoelker, CE Seyfried, RL Eddy, MG Byers, TB Shows, J Calderon, RB Schreiber, PW Gray |
Biochemistry | 1994 |
Calreticulin: not just another calcium-binding protein
PD Nash, M Opas, M Michalak |
Molecular and Cellular Biochemistry | 1994 |
Onchocerca volvulus andAcanthocheilonema viteae: cloning of cDNAs for muscle-cell intermediate filaments
F Seeber, W Hfle, A Kern, R Lucius |
Zeitschrift für Parasitenkunde | 1994 |
Developmentally regulated localization and phosphorylation of SmIrV1, a Schistosoma mansoni antigen with similarity to calnexin
TR Hawn, M Strand |
The Journal of biological chemistry | 1994 |
Structure and homology of human C1q receptor (collectin receptor)
R Malhotra, AC Willis, JC Jensenius, J Jackson, RB Sim |
Immunology | 1993 |
Cloning of the gene encoding a Schistosoma mansoni antigen homologous to human Ro/SS-A autoantigen
J Khalife, F Trottein, AM Schacht, C Godin, RJ Pierce, A Capron |
Molecular and Biochemical Parasitology | 1993 |
Molecular cloning and expression of SmIrV1, a Schistosoma mansoni antigen with similarity to calnexin, calreticulin, and OvRal1
TR Hawn, TD Tom, M Strand |
The Journal of biological chemistry | 1993 |
Serological cross-reactivity between a human Ro/SS-A autoantigen (calreticulin) and the lambda Ral-1 antigen of Onchocerca volvulus
FA Lux, DP McCauliffe, DW Büttner, R Lucius, JD Capra, RD Sontheimer, TS Lieu |
Journal of Clinical Investigation | 1992 |
Long-Term sensitization training in Aplysia leads to an increase in calreticulin, a major presynaptic calcium-binding protein
TE Kennedy, D Kuhl, A Barzilai, JD Sweatt, ER Kandel |
Neuron | 1992 |
Calreticulin
M Michalak, RE Milner, K Burns, M Opas |
Biochemical Journal | 1992 |
Characterization of a possible tRNA synthetase gene from Onchocerca volvulus
MA Kron, K Erttmann, BM Greene, T Unnasch |
Molecular and Biochemical Parasitology | 1992 |
AC.elegans gene encodes a protein homologous to mammalian calreticulin
MJ Smith |
Mitochondrial DNA | 1992 |
Onchocerca volvulus: Frequency of codon usage
TR Unnasch, CR Katholi, LM Coate |
Experimental Parasitology | 1992 |
Expression and purification of recombinant and native calreticulin
S Baksh, K Burns, J Busaan, M Michalak |
Protein Expression and Purification | 1992 |
Regulation of the immune response in lymphatic filariasis and onchocerciasis
CL King, TB Nutman |
Parasitology Today | 1991 |
Translational elongation factor 1α (EF-1α) of Onchocerca volvulus
CM Alarcon, JE Donelson |
Molecular and Biochemical Parasitology | 1991 |
Molecular cloning of the cDNA encoding an immunodominant antigen of Dirofilaria immitis
SH Sun, T Matsuura, K Sugane |
Journal of Helminthology | 1991 |
Histochemical localization of gene expression in Onchocerca volvulus: in situ DNA histohybridization and immunocytochemistry
RS Tuan, KJ Shepley, MM Mulligan, D Abraham, FB Perler |
Molecular and Biochemical Parasitology | 1991 |
Calreticulin, and not calsequestrin, is the major calcium binding protein of smooth muscle sarcoplasmic reticulum and liver endoplasmic reticulum
RE Milner, S Baksh, C Shemanko, MR Carpenter, L Smillie, JE Vance, M Opas, M Michalak |
The Journal of biological chemistry | 1991 |
Molecular cloning, expression, and chromosome 19 localization of a human Ro/SS-A autoantigen
DP McCauliffe, FA Lux, TS Lieu, I Sanz, J Hanke, MM Newkirk, LL Bachinski, Y Itoh, MJ Siciliano, M Reichlin |
Journal of Clinical Investigation | 1990 |
Cytokine regulation of antigen-driven immunoglobulin production in filarial parasite infections in humans
CL King, EA Ottesen, TB Nutman |
Journal of Clinical Investigation | 1990 |
A human Ro/SS-A autoantigen is the homologue of calreticulin and is highly homologous with onchocercal RAL-1 antigen and an aplysia "memory molecule"
DP McCauliffe, E Zappi, TS Lieu, M Michalak, RD Sontheimer, JD Capra |
Journal of Clinical Investigation | 1990 |
Structural homology between the rat calreticulin gene product and the Onchocerca volvulus antigen Ral-1
KK Murthy, D Banville, CB Srikant, F Carrier, C Holmes, A Bell, YC Patel |
Nucleic Acids Research | 1990 |
Many transcribed regions of the Onchocerca volvulus genome contain the spliced leader sequence of Caenorhabditis elegans
WL Zeng, CM Alarcon, JE Donelson |
Molecular and cellular biology | 1990 |
Human T-cell stimulation, molecular characterization and in situ mRNA localization of a Brugia malayi recombinant antigen
P Arasu, TB Nutman, C Steel, MM Mulligan, D Abraham, RS Tuan, FB Perler |
Molecular and Biochemical Parasitology | 1989 |
Cloning and characterization of an Onchocerca volvulus specific DNA sequence
SE Meredith, TR Unnasch, M Karam, WF Piessens, DF Wirth |
Molecular and Biochemical Parasitology | 1989 |