The cytoskeleton of mammalian spermatozoa.
The mammalian spermatozoa are endowed with a unique cytoskeleton which consists both of ubiquitous and specific proteins, some of them arising from gene haploid transcription. In the head, a dense perinuclear layer is made of basic proteins (calicin, cylicin, etc) associated with calmodulin and actin remnants. In the flagellum, the axonemal microtubules are mainly composed of glutamylated tubulin isoforms; the periaxonemal outer dense fibers and fibrous sheath are considered as related cytoskeletal structures on the basis of some common polypeptides.
Laboratoire de Biologie Cellulaire, Université Paris V, France.
J P
JP
Fouquet
M L
ML
Kann
D000818:Animals; D002465:Cell Movement; D003599:Cytoskeleton / Q000648:ultrastructure; D006801:Humans; D008297:Male; D008322:Mammals; D013094:Spermatozoa / Q000166:cytology* / Q000648:ultrastructure