Abstract
Three monoclonal antibody subclasses (IgG1, IgG2a, and IgM) were raised to the phosphoprotein B2 (Mr 68000, pI6.5-8.2) which has been shown previously to be associated with the nucleosomes of rat liver nuclei. These antibodies do not show any significant cross reactivity with CM-cellulose 'unbound' non-histone chromosomal proteins, bovine serum albumin or histones. Further verification of the specificity of these antibodies to this phosphoprotein was carried out using both 'dot' blot and immunological transfer analysis ('Western blot'). The monoclonal antibodies (IgG1 and IgG2a) could also be used to semi-quantify the phosphoprotein B2 in rat liver nuclei. The high specificity and unlimited availability of this type of probe provides a means to study the role(s) of this phosphoprotein in the overall scheme of actively transcribed chromatin.
MeSH Terms
Animals
Antibodies, Monoclonal/immunology
Chromatin/immunology
Chromosomal Proteins, Non-Histone/immunology,isolation & purification
Immunodiffusion
Immunoelectrophoresis
Immunoglobulin G/immunology
Liver/immunology
Male
Phosphoproteins/immunology,isolation & purification
Radioimmunoassay
Rats
Rats, Inbred Strains
Chemicals
Antibodies, Monoclonal
Chromatin
Chromosomal Proteins, Non-Histone
Immunoglobulin G
Phosphoproteins
nuclear phosphoprotein B2, rat
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Halikowski M J
Liew C C
References (27)
27 references, click to expand
-
Selective synthesis of a nuclear acidic protein in liver cells stimulated by cortisol.
Nature. 1970 Oct 10;228(5267):132-4
PMID: 5460012
-
A chromosomal phosphoprotein is preferentially released by mild micrococcal-nuclease digestion.
Biochem J. 1984 Jun 1;220(2):539-45
PMID: 6743285
-
A partial sequence of nuclear events in regenerating rat liver (gene regulation-chromosomal RNA).
Proc Natl Acad Sci U S A. 1972 Jan;69(1):7-10
PMID: 4500558
-
The heterogeneity of mouse-chromatin nonhistone proteins as evidenced by two-dimensional polyacrylamide-gel electrophoresis and ion-exchange chromatography.
Eur J Biochem. 1974 Jan 3;41(1):181-90
PMID: 4816452
-
Isolation of nuclear acidic proteins from rat tissues. Characterization of acetylated liver nuclear acidic proteins.
Biochem J. 1974 Feb;137(2):355-62
PMID: 4596143
-
Isolation and analysis of non-histone chromatin proteins from rat-liver nuclei by three different methods.
Can J Biochem. 1974 Dec;52(12):1143-53
PMID: 4447903
-
Covalent modification of nuclear proteins during aging.
Fed Proc. 1975 Feb;34(2):186-7
PMID: 1116612
-
Fractionation of nucleolar proteins by two-dimensional gel electrphoresis.
Can J Biochem. 1976 Jan;54(1):9-14
PMID: 3272
-
Identification of nonhistone chromatin proteins in chromatin subunits.
Proc Natl Acad Sci U S A. 1976 Oct;73(10):3458-62
PMID: 1068458
-
Mode of action of non-histone proteins in the stimulation of transcription from DNA.
Biochem Biophys Res Commun. 1976 Sep 7;72(1):334-8
PMID: 988833
-
Identification of specific phosphoproteins in nuclease-digested chromatin subunits.
Can J Biochem. 1977 Aug;55(8):847-55
PMID: 890579
-
Presence of non-histone proteins in nucleosomes.
Eur J Biochem. 1978 Aug 1;88(2):583-91
PMID: 689039
-
Isolation of a subclass of nuclear proteins responsible for conferring a DNase I-sensitive structure on globin chromatin.
Proc Natl Acad Sci U S A. 1979 Feb;76(2):630-4
PMID: 284387
-
Purification of a phosphoprotein from chromatin of rat liver.
Biochem J. 1979 Oct 1;183(1):147-56
PMID: 534478
-
SV40 large T shares an antigenic determinant with a cellular protein of molecular weight 68,000.
Nature. 1980 Nov 13;288(5787):167-70
PMID: 6159551
-
Monoclonal antibodies against a specific nonhistone chromosomal protein of Drosophila associated with active genes.
J Cell Biol. 1981 Jan;88(1):219-25
PMID: 6782108
-
Immunochemical detection of chromosomal protein HMG-17 in chromatin subunits.
Biochemistry. 1981 Feb 17;20(4):910-5
PMID: 6452161
-
Isolation of monoclonal antibodies to chromatin and preliminary characterization of target antigens.
Eur J Cell Biol. 1981 Jun;24(2):266-74
PMID: 6169528
-
Production of antibody to phosphoprotein associated with nucleosome structure.
Can J Biochem. 1982 Mar;60(3):356-63
PMID: 6805928
-
Chromatin.
Annu Rev Biochem. 1982;51:89-121
PMID: 6287925
-
Chromatin structure and gene activity: the role of nonhistone chromosomal proteins.
CRC Crit Rev Biochem. 1982;13(1):1-86
PMID: 6751690
-
Antigenic determinants of high mobility group chromosomal proteins 1 and 2.
Biochemistry. 1982 Dec 21;21(26):6773-7
PMID: 6186273
-
Studies of nucleosome structure.
Cold Spring Harb Symp Quant Biol. 1983;47 Pt 1:493-501
PMID: 6574855
-
Monoclonal antibodies to tissue-specific chromatin proteins.
J Biol Chem. 1983 Jun 25;258(12):7751-6
PMID: 6190804
-
Protein blotting: principles and applications.
Anal Biochem. 1983 May;131(1):1-15
PMID: 6193725
-
Antigens in chromatin associated with proliferating and nonproliferating cells.
J Cell Biochem. 1983;21(4):249-62
PMID: 6654991
-
Studies of nuclear acidic proteins. Evidence for their phosphorylation, tissue specificity, selective binding to deoxyribonucleic acid, and stimulation effects on transcription.
J Biol Chem. 1971 Jun 10;246(11):3597-609
PMID: 4397103