PMID- 9714720 OWN - NLM STAT- MEDLINE DCOM- 19981005 LR - 20190707 IS - 0378-1119 (Print) IS - 0378-1119 (Linking) VI - 216 IP - 1 DP - 1998 Aug 17 TI - The human glucosamine-6-phosphate deaminase gene: cDNA cloning and expression, genomic organization and chromosomal localization. PG - 31-8 AB - When mammalian eggs are fertilized by sperm, a distinct series of calcium oscillations are generated which serve as the essential trigger for egg activation and early embryo development. The identification of a soluble hamster sperm 33-kDa protein that co-migrated with calcium oscillation-inducing activity was recently described by Parrington et al. (Parrington, J., Swann, K., Shevchenko, V.I., Sesay, A.K. and Lai, F.A., 1996. Calcium oscillations in mammalian eggs triggered by a soluble sperm protein. Nature 379, 364-368). The hamster sperm 33 kDa protein was termed oscillin because it correlated with calcium oscillation-inducing activity in mammalian eggs. Sequence analysis of the hamster sperm 33 kDa protein indicated no similarity to any known cell signalling molecule, however, it displayed extensive homology with a bacterial glucosamine-6-phosphate deaminase. We have isolated the corresponding human testis homologue of the hamster sperm 33 kDa cDNA. Nucleotide sequence analysis reveals a high level of sequence identity between the hamster and human genes. The deduced protein sequence of the human gene also shares extensive amino acid identity with the bacterial glucosamine-6-phosphate deaminase enzyme. Heterologous expression of the human testis 33 kDa protein produced a glucosamine-6-phosphate deaminase activity. The genomic structure of the human glucosamine-6-phosphate deaminase has been mapped and the gene was localized by fluorescence in situ hybridization (FISH) to chromosome 5q31. FAU - Shevchenko, V AU - Shevchenko V AD - MRC National Institute for Medical Research, Mill Hill, London NW7 1AA, UK. FAU - Hogben, M AU - Hogben M FAU - Ekong, R AU - Ekong R FAU - Parrington, J AU - Parrington J FAU - Lai, F A AU - Lai FA LA - eng SI - GENBANK/AJ002231 PT - Journal Article PL - Netherlands TA - Gene JT - Gene JID - 7706761 RN - 0 (DNA, Complementary) RN - EC 3.5.99.6 (glucosamine-6-phosphate isomerase) RN - EC 5.3.1.- (Aldose-Ketose Isomerases) SB - IM MH - Aldose-Ketose Isomerases/chemistry/*genetics MH - Amino Acid Sequence MH - Base Sequence MH - Chromosome Mapping MH - Chromosomes, Human, Pair 5/genetics MH - DNA, Complementary/chemistry/genetics MH - Escherichia coli/enzymology/genetics MH - Exons/genetics MH - Gene Expression/genetics MH - Genes/*genetics MH - Humans MH - Introns/genetics MH - Male MH - Molecular Sequence Data MH - Sequence Analysis, DNA MH - Sequence Homology, Amino Acid MH - Testis/chemistry/metabolism EDAT- 1998/08/26 00:00 MHDA- 1998/08/26 00:01 CRDT- 1998/08/26 00:00 PHST- 1998/08/26 00:00 [pubmed] PHST- 1998/08/26 00:01 [medline] PHST- 1998/08/26 00:00 [entrez] AID - S0378-1119(98)00335-7 [pii] AID - 10.1016/s0378-1119(98)00335-7 [doi] PST - ppublish SO - Gene. 1998 Aug 17;216(1):31-8. doi: 10.1016/s0378-1119(98)00335-7.