Identification and cloning of an mRNA coding for a germ cell-specific A-type lamin in mice

Kazuhiro Furukawa, Hidehito Inagaki, Yasuo Hotta

Research output: Contribution to journalArticle

149 Citations (Scopus)

Abstract

The nuclear lamins are karyoskeletal proteins which have important functions, such as maintaining nuclear envelope integrity and organizing high order nuclear structure during mitosis in higher eukaryotes. In somatic mammalian cells, the A-type and B-type lamins, composed of lamins A and C and lamins B1 and B2, are major components of the nuclear lamina. However, A-type lamins have as yet not been identified in germ cells and undifferentiated embryonic cells. Here we report the cloning of a new 52-kDa A-type lamin from mouse pachytene spermatocytes, termed lamin C2 because of its similarities with lamin C. It has a sequence identical to that of lamin C except that the N-terminal segment, containing the head and the α-helical coil 1A domains, is replaced with a short non-α-helical stretch of amino acids. In mice, lamin C2 was found to be specifically expressed in germ cells. This specific expression and unique structure suggests a role for lamin C2 in determining the organization of nuclear and chromosomal structures during spermatogenesis.

Original languageEnglish
Pages (from-to)426-430
Number of pages5
JournalExperimental Cell Research
Volume212
Issue number2
DOIs
Publication statusPublished - 01-01-1994

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Lamin Type A
Germ Cells
Organism Cloning
Messenger RNA
Lamin Type B
Nuclear Lamina
Lamins
Spermatocytes
Nuclear Envelope
Spermatogenesis
Eukaryota
Mitosis
Head
Amino Acids
lamin C2
Proteins
lamin C

All Science Journal Classification (ASJC) codes

  • Cell Biology

Cite this

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Identification and cloning of an mRNA coding for a germ cell-specific A-type lamin in mice. / Furukawa, Kazuhiro; Inagaki, Hidehito; Hotta, Yasuo.

In: Experimental Cell Research, Vol. 212, No. 2, 01.01.1994, p. 426-430.

Research output: Contribution to journalArticle

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