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We found significant differences in the population distribution of sperm expressing each of the two activities, and the ratio of the two activities in sperm homogenate is very different from the one found in erythrocyte lysates. The possibility of haploid gene expression has been considered in interpreting these results.<\/jats:p>","DOI":"10.1136\/jmg.14.4.250","type":"journal-article","created":{"date-parts":[[2008,11,10]],"date-time":"2008-11-10T14:50:51Z","timestamp":1226328651000},"page":"250-255","source":"Crossref","is-referenced-by-count":14,"title":["Glucose-6-phosphate dehydrogenase (G6PD) activity of human sperm."],"prefix":"10.1136","volume":"14","author":[{"given":"S","family":"Sarkar","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A J","family":"Nelson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"O W","family":"Jones","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[1977,8,1]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"308","DOI":"10.1038\/246308a0","article-title":"Sex ratio in progeny of mice inseminated with sperm treated with H-Y antiserum","volume":"246","author":"Bennett, D.; Boyse, E.A.","year":"1973","unstructured":"Bennett, D., and Boyse, E. A. (1973). Sex ratio in progeny of mice inseminated with sperm treated with H-Y antiserum. Nature, 246, 308-309.","journal-title":"Nature"},{"key":"ref_2","first-page":"472","article-title":"A new inherited enzymatic deficiency of human erythrocytes: 6-phosphogluconate dehydrogenase deficiency","volume":"16","author":"Brewer, G.J.; Dern, R.J.","year":"1964","unstructured":"Brewer, G. J., and Dern, R. J. (1964). A new inherited enzymatic deficiency of human erythrocytes: 6-phosphogluconate dehydrogenase deficiency. American Journal of Human Genetics. 16, 472-476.","journal-title":"American Journal of Human Genetics"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"369","DOI":"10.1016\/0003-2697(62)90065-9","article-title":"A fluorimetric method for the quantitative microanalysis of adenine and pyridine nucleotides","volume":"3","author":"Estabrook, R.W.; Maitra, P.K.","year":"1962","unstructured":"Estabrook, R. W., and Maitra, P. K. (1962). A fluorimetric method for the quantitative microanalysis of adenine and pyridine nucleotides. Analytical Biochemistry, 3, 369-382.","journal-title":"Analytical Biochemistry"},{"key":"ref_4","first-page":"121","article-title":"Spermatogenesis and sperm defects","volume-title":"Edinburgh Symposium on the Genetics of the Spermatozoon","author":"Hancock, J.L.","year":"1972","unstructured":"Hancock, J. L. (1972). Spermatogenesis and sperm defects. In Edinburgh Symposium on the Genetics of the Spermatozoon, pp. 121-129. Ed. by R. A. Beatty and S. GluecksohnWaelsch. University of Edinburgh."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"160","DOI":"10.1136\/jmg.9.2.160","article-title":"A new G6PD variant associated with chronic non-spherocytic hemolytic anaemia in a Negro family","volume":"9","year":"1972","unstructured":"Howell, E. B., Nelson, A. J., and Jones, 0. W. (1972). A new G6PD variant associated with chronic non-spherocytic hemolytic anaemia in a Negro family. Journal of Medical Genetics, 9, 160-164.","journal-title":"Journal of Medical Genetics"},{"key":"ref_6","first-page":"212","article-title":"Distribution of glucose6-phosphate dehydrogenase electrophoretic variants in different tissues of heterozygotes","volume":"17","author":"Linder, D.; Gartler, S.M.","year":"1965","unstructured":"Linder, D., and Gartler, S. M. (1965). Distribution of glucose6-phosphate dehydrogenase electrophoretic variants in different tissues of heterozygotes. American Journal of Human Genetics, 17, 212-220.","journal-title":"American Journal of Human Genetics"},{"key":"ref_7","first-page":"p.","article-title":"Mendelian Inheritance in Man","author":"McKusick, V.A.","year":"1975","unstructured":"McKusick, V. A. (1975a). Mendelian Inheritance in Man, 4th ed., p. Ixv. The John Hopkins University Press, Baltimore, Maryland","edition":"4th ed"},{"key":"ref_8","first-page":"p.","article-title":"Mendelian Inheritance in Man","author":"McKusick, V.A.","year":"1975","unstructured":"McKusick, V. A. (1975b). Mendelian Inheritance in Man, 4th ed., p. 261 (index no. 17220). The Johns Hopkins University Press, Baltimore, Maryland.","edition":"4th ed"},{"key":"ref_9","first-page":"265","volume-title":"The Biochemistry of Semen and of the Male Reproductive Tract","author":"Mann, T.","year":"1964","unstructured":"Mann, T. (1964). In The Biochemistry of Semen and of the Male Reproductive Tract, pp. 265-307. Barnes and Nobles."},{"key":"ref_10","first-page":"1","article-title":"Chromosome activities during meiosis and spermiogenesis","volume":"13","author":"Monesi, V.","year":"1971","unstructured":"Monesi, V. (1971). Chromosome activities during meiosis and spermiogenesis. Journal of Reproduction and Fertility, Suppl. 13. 1-14.","journal-title":"Journal of Reproduction and Fertility"},{"key":"ref_11","first-page":"p.p","article-title":"A cytological demonstration of the DNA-transcription enzyme RNA polymerase during mammalian spermatogenesis","volume-title":"Edinburgh Symposium on the Genetics of the Spermatozoon","author":"Moore, G.P.M.","year":"1972","unstructured":"Moore, G. P. M. (1972). A cytological demonstration of the DNA-transcription enzyme RNA polymerase during mammalian spermatogenesis. In Edinburgh Symposium on the Genetics of the Spermatozoon, p.p 90-96. Ed. by R. A. Beatty and S. Gluecksohn-Waelsch. University of Edinburgh."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"339","DOI":"10.1111\/j.1469-1809.1967.tb00036.x","article-title":"Inherited quantitative variations of human phosphogluconate dehydrogenase","volume":"30","author":"Parr, C.W.; Fitch, L.I.","year":"1967","unstructured":"Parr, C. W., and Fitch, L. I. (1967). Inherited quantitative variations of human phosphogluconate dehydrogenase. Annals of Human Genetics, 30, 339-353.","journal-title":"Annals of Human Genetics"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"4966","DOI":"10.1016\/S0021-9258(18)99658-4","article-title":"Glucose 6-phosphate dehydrogenase of human erythrocytes","volume":"241","author":"Yoshida, A.","year":"1966","unstructured":"Yoshida, A. (1966). Glucose 6-phosphate dehydrogenase of human erythrocytes. Journal of Biological Chemistry, 241, 4966-4976.","journal-title":"Journal of Biological Chemistry"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"97","DOI":"10.1126\/science.155.3758.97","article-title":"Negro variant of glucose-6-phosphate dehydrogenase deficiency (A-) in man","volume":"155","author":"Yoshida, A.; Stamatoyannopoulos, G.; Motulsky, A.G.","year":"1967","unstructured":"Yoshida, A., Stamatoyannopoulos, G., and Motulsky, A. G. (1967). Negro variant of glucose-6-phosphate dehydrogenase deficiency (A-) in man. 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