176
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Wang AC, Fudenberg HH, Goldrosen MH, Freedman MH. Chemical studies of heavy chains of two IgGl-lambda myeloma proteins from a single patient. IMMUNOCHEMISTRY 1972; 9:473-9. [PMID: 5036147 DOI: 10.1016/0019-2791(72)90057-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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177
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Goldrosen MH, Pruzanski W, Freedman MH. Structural and immunological studies of two IgGl-lambda myeloma proteins from a single patient. IMMUNOCHEMISTRY 1972; 9:387-404. [PMID: 5034301 DOI: 10.1016/0019-2791(72)90309-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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178
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Cohen JS, Yim CT, Kandel M, Gornall AG, Kandel SI, Freedman MH. Studies of the histidine residues of carbonic anhydrases using high-field proton magnetic resonance. Biochemistry 1972; 11:327-34. [PMID: 4621754 DOI: 10.1021/bi00753a003] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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179
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Freedman MH. The use of preparative liquid isoelectric focusing for the further purification of rabbit antihapten antibodies. J Immunol Methods 1972; 1:177-98. [PMID: 4116935 DOI: 10.1016/0022-1759(72)90045-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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180
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Painter RH, Freedman MH. Isolation and characterization of electrophoretically homogeneous rabbit antihapten antibody populations. II. A survey of the isoelectric properties of antihapten antibodies directed against charged and uncharged haptens. J Biol Chem 1971; 246:6692-9. [PMID: 4108928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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181
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182
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Freedman MH, Painter RH. A Method for Further Separation of Specifically purified Antibodies by Liquid Isoelectric Focusing. THE JOURNAL OF IMMUNOLOGY 1971. [DOI: 10.4049/jimmunol.107.3.932.c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Abstract
Specifically purified anti-p-azophenyltrimethylammonium antibodies from individual rabbits have been separated by isoelectric focusing on a preparative scale over a pH range of 5 to 8 into as many as 30 components differing in isoelectric properties and demonstrating reduced heterogeneity. A number of these components have many of the properties characteristic of homogeneous antibodies. The isolated antibodies are electrophoretically discrete and show homogeneous binding properties towards the p125I-iodophenyltrimethylammonium hapten, giving two combining sites/mol protein with a heterogeneity index of 1.00 ± 0.05. On alkaline urea disc electrophoresis, the fully reduced and alkylated antibody light chain patterns were monodisperse. Several specifically purified rabbit and goat antibodies directed against neutral, positively charged and negatively charged haptens have been purified. This procedure appears to afford a general method for the further purification of antibodies to a state suitable for sequence studies and detailed structural studies on the nature of the combining sites.
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183
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Freedman MH, Pruzanski W. Studies on Human Myeloma Proteins with Antibody-Like Activity. THE JOURNAL OF IMMUNOLOGY 1971. [DOI: 10.4049/jimmunol.107.3.927.b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Abstract
More than 500 human sera containing one or more M-components were screened for antibody-like activity, using both double diffusion in agarose and modified Farr binding studies. Antibody activity was detected in two IgG myeloma proteins and two IgM macroglobulins using a number of negatively charged, positively charged, and neutral haptens. We have at least one of these M-components growing in cell culture producing two different cell lines, and we have obtained small crystals with two of the M-components. Equilibrium dialysis of the purified M-components yielded K0 values with low affinity. We have isolated, using liquid isoelectric focusing, a homogeneous IgG(γG1, K) protein from a leukemic patient 2 months after a bone marrow transplant operation. The IgG was not directed against the histocompatibility antigens. We detected significant binding with this protein and 3H-hydrocortisone. (Supported by MRC grant MA-3001 and the Ontario Treatment and Research Foundation).
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184
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Freedman MH, Painter RH. Isolation and characterization of electrophoretically homogeneous rabbit antihapten antibody populations. I. Separation and properties of homogeneous anti-p-azophenyltrimethyl-ammonium antibodies. J Biol Chem 1971; 246:4340-9. [PMID: 4996882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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185
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Klement V, Freedman MH, McAllister RM, Nelson-Rees WA, Heubner RJ. Differences in susceptibility of human cells to mouse sarcoma virus. J Natl Cancer Inst 1971; 47:65-73. [PMID: 4328197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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186
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Freedman MH, Cohen JS, Chaiken IM. Carbon-13 Fourier transform nuclear magnetic resonance studies of peptides. Biochem Biophys Res Commun 1971; 42:1148-55. [PMID: 5550801 DOI: 10.1016/0006-291x(71)90025-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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187
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Freedman MH, Finklestein JZ, Hammond GD, Karon M. The effect of chemotherapy on acute myelogenous leukemia in children. J Pediatr 1971; 78:526-32. [PMID: 5101449 DOI: 10.1016/s0022-3476(71)80242-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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188
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Freedman MH, Gilchrist GS, Hammond GD. Concurrent infectious mononucleosis and acute leukemia. JAMA 1970; 214:1677-80. [PMID: 5273963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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189
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Freedman MH, Finklestein JZ, Gilchrist GS, Hammond GD, Higgins GR, Hyman CB, Shore NA, Williams KO, Karon MR. Preliminary evaluation of cyclophosphamide (NSC-26271) and cytosine arabinoside (NSC-63878) in acute leukemia of children. CANCER CHEMOTHERAPY REPORTS 1969; 53:299-303. [PMID: 5270583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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190
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Freedman MH, Grossberg AL, Pressman D. Evidence for ammonium and guanidinium groups in the combining sites of anti-p-azobenzenearsonate antibodies--separation of two different populations of antibody molecules. J Biol Chem 1968; 243:6186-95. [PMID: 5723462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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191
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Freedman MH, Grossberg AL, Pressman D. Evidence for Ammonium and Guanidinium Groups in the Combining Sites of Anti-p-azobenzenearsonate Antibodies— Separation of Two Different Populations of Antibody Molecules. J Biol Chem 1968. [DOI: 10.1016/s0021-9258(18)94477-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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192
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Freedman MH, Grossberg AL, Pressman D. Participation of amino groups in the active sites of antibodies. IMMUNOCHEMISTRY 1968; 5:367-81. [PMID: 5761356 DOI: 10.1016/0019-2791(68)90132-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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193
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Freedman MH, Grossberg AL, Pressman D. The effects of complete modification of amino groups on the antibody activity of antihapten antibodies. Reversible inactivation with maleic anhydride. Biochemistry 1968; 7:1941-50. [PMID: 5689844 DOI: 10.1021/bi00845a044] [Citation(s) in RCA: 99] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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194
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Freedman MH, Sela M. Recovery of specific activity upon reoxidation of completely reduced polyalanyl rabbit antibody. J Biol Chem 1966; 241:5225-32. [PMID: 4959144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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195
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Freedman MH, Slobin LI, Robbins JB, Sela M. Soluble antigen-antibody complexes as intermediates in the purification of antibodies in 8 molar urea. Arch Biochem Biophys 1966; 116:82-91. [PMID: 4960205 DOI: 10.1016/0003-9861(66)90015-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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196
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Freedman MH, Sela M. Recovery of antigenic activity upon reoxidation of completely reduced polyalanyl rabbit immunoglobulin G. J Biol Chem 1966; 241:2383-96. [PMID: 4161716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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