Gene for a major cell surface glycoprotein of mouse macrophages and other phagocytic cells is on chromosome 2

A. Colombatti, E. N. Hughes, B. A. Taylor, Thomas August

Research output: Contribution to journalArticle

Abstract

A gene controlling the expression of a polymorphic 92,000-dalton glycoprotein of mouse macrophages and granulocytes has been identified. This glycoprotein was previously shown to be the major iodinated, trypsin-sensitive component of the murine phagocyte cell surface. The gene has been provisionally designated Pgp-1 for phagocyte glycoprotein 1. Expression of the glycoprotein was measured by monoclonal antibody binding to a polymorphic antigenic determinant. Antibody binding to cells of positive strains of mice was proportional to cell number, whereas binding to cells of negative strains was insignificant. The concentration of the antigen in cells of heterozygous mice was approximately 50% of that in homozygous mice. Thirteen of 33 recombinant inbred strains of mice were positive, with binding values 100-fold over background, suggesting that a single gene controlled expression of the antigen. Segregation of the antigen correlated with markers on chromosome 2. The segregation of Pgp-1, with nonagouti coat color (a) and hemolytic complement (Hc) activity among progeny of (C3H/HeJ x DBA/2J)F1 x DBA/2J mice confirmed the single gene control and the chromosomal asssignment. Another gene on chromosome 2, Ly-m11, was also typed by using (BALB/cJ x C57BL/6J)F1 x C57BL/6J mice. The data from both of these crosses indicated the following gene order: Hc--Pgp-1--Ly-m11--a.

Original languageEnglish (US)
Pages (from-to)1926-1929
Number of pages4
JournalProceedings of the National Academy of Sciences of the United States of America
Volume79
Issue number6 I
StatePublished - 1982

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Chromosomes, Human, Pair 2
Membrane Glycoproteins
Phagocytes
Glycoproteins
Macrophages
Antigens
Genes
Complement System Proteins
Complement C1
Gene Expression
Inbred DBA Mouse
Inbred Strains Mice
Gene Order
Inbred C57BL Mouse
Granulocytes
Trypsin
Epitopes
Color
Cell Count
Monoclonal Antibodies

ASJC Scopus subject areas

  • General
  • Genetics

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Gene for a major cell surface glycoprotein of mouse macrophages and other phagocytic cells is on chromosome 2. / Colombatti, A.; Hughes, E. N.; Taylor, B. A.; August, Thomas.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 79, No. 6 I, 1982, p. 1926-1929.

Research output: Contribution to journalArticle

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abstract = "A gene controlling the expression of a polymorphic 92,000-dalton glycoprotein of mouse macrophages and granulocytes has been identified. This glycoprotein was previously shown to be the major iodinated, trypsin-sensitive component of the murine phagocyte cell surface. The gene has been provisionally designated Pgp-1 for phagocyte glycoprotein 1. Expression of the glycoprotein was measured by monoclonal antibody binding to a polymorphic antigenic determinant. Antibody binding to cells of positive strains of mice was proportional to cell number, whereas binding to cells of negative strains was insignificant. The concentration of the antigen in cells of heterozygous mice was approximately 50{\%} of that in homozygous mice. Thirteen of 33 recombinant inbred strains of mice were positive, with binding values 100-fold over background, suggesting that a single gene controlled expression of the antigen. Segregation of the antigen correlated with markers on chromosome 2. The segregation of Pgp-1, with nonagouti coat color (a) and hemolytic complement (Hc) activity among progeny of (C3H/HeJ x DBA/2J)F1 x DBA/2J mice confirmed the single gene control and the chromosomal asssignment. Another gene on chromosome 2, Ly-m11, was also typed by using (BALB/cJ x C57BL/6J)F1 x C57BL/6J mice. The data from both of these crosses indicated the following gene order: Hc--Pgp-1--Ly-m11--a.",
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AB - A gene controlling the expression of a polymorphic 92,000-dalton glycoprotein of mouse macrophages and granulocytes has been identified. This glycoprotein was previously shown to be the major iodinated, trypsin-sensitive component of the murine phagocyte cell surface. The gene has been provisionally designated Pgp-1 for phagocyte glycoprotein 1. Expression of the glycoprotein was measured by monoclonal antibody binding to a polymorphic antigenic determinant. Antibody binding to cells of positive strains of mice was proportional to cell number, whereas binding to cells of negative strains was insignificant. The concentration of the antigen in cells of heterozygous mice was approximately 50% of that in homozygous mice. Thirteen of 33 recombinant inbred strains of mice were positive, with binding values 100-fold over background, suggesting that a single gene controlled expression of the antigen. Segregation of the antigen correlated with markers on chromosome 2. The segregation of Pgp-1, with nonagouti coat color (a) and hemolytic complement (Hc) activity among progeny of (C3H/HeJ x DBA/2J)F1 x DBA/2J mice confirmed the single gene control and the chromosomal asssignment. Another gene on chromosome 2, Ly-m11, was also typed by using (BALB/cJ x C57BL/6J)F1 x C57BL/6J mice. The data from both of these crosses indicated the following gene order: Hc--Pgp-1--Ly-m11--a.

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