PMID- 10350657 OWN - NLM STAT- MEDLINE DCOM- 19990702 LR - 20201209 IS - 0006-3002 (Print) IS - 0006-3002 (Linking) VI - 1427 IP - 3 DP - 1999 May 24 TI - Partial nuclear localization of a bovine phosphoprotein, BCNT, that includes a region derived from a LINE repetitive sequence in Ruminantia. PG - 408-16 AB - BCNT, named after Bucentaur, is a protein that contains a 324-amino-acid region derived from part of a long interspersed DNA sequence element (LINE) in Ruminantia. However, the unique portion is completely missing in human and mouse BCNTs. Since no significant information on their function has been obtained by homology search, we at first examined cellular localization and biochemical characteristics of bovine BCNT to get a hint on its function. Subcellular fractionation and immunohistochemical analyses using a normal bovine epithelial cell line and bovine brain revealed that a significant amount of bovine BCNT is localized in the nuclei, while the major portion is present in the cytosol. Furthermore, it was shown that bovine BCNT is a phosphoprotein and that both bovine and human BCNTs are phosphorylated by casein kinase II in vitro. These results show that BCNTs consist of a unique family, probably a substrate of casein kinase II, which may contribute further to the understanding of gene evolution. FAU - Iwashita, S AU - Iwashita S AD - Mitsubishi Kasei Institute of Life Sciences, 11 Minamiooya, Machida-shi, Tokyo 194, Japan. siwast@libra.ls.m-kagaku.co.jp FAU - Nobukuni, T AU - Nobukuni T FAU - Tanaka, S AU - Tanaka S FAU - Kobayashi, M AU - Kobayashi M FAU - Iwanaga, T AU - Iwanaga T FAU - Tamate, H B AU - Tamate HB FAU - Masui, T AU - Masui T FAU - Takahashi, I AU - Takahashi I FAU - Hashimoto, K AU - Hashimoto K LA - eng PT - Journal Article PL - Netherlands TA - Biochim Biophys Acta JT - Biochimica et biophysica acta JID - 0217513 RN - 0 (CFDP1 protein, human) RN - 0 (Nuclear Proteins) RN - 0 (Phosphoproteins) RN - 9007-49-2 (DNA) SB - IM MH - Amino Acid Sequence MH - Animals MH - Brain/*metabolism MH - Cattle MH - Cell Fractionation MH - Cell Line MH - Cell Nucleus/*metabolism MH - DNA/chemistry MH - Deer MH - Immunohistochemistry MH - Kidney/*metabolism MH - Liver/metabolism MH - Molecular Sequence Data MH - Nuclear Proteins MH - Phosphoproteins/*analysis/genetics/isolation & purification MH - Precipitin Tests MH - Repetitive Sequences, Nucleic Acid MH - Ruminants/*genetics MH - Sequence Homology, Amino Acid EDAT- 1999/06/03 00:00 MHDA- 1999/06/03 00:01 CRDT- 1999/06/03 00:00 PHST- 1999/06/03 00:00 [pubmed] PHST- 1999/06/03 00:01 [medline] PHST- 1999/06/03 00:00 [entrez] AID - S0304-4165(99)00049-5 [pii] AID - 10.1016/s0304-4165(99)00049-5 [doi] PST - ppublish SO - Biochim Biophys Acta. 1999 May 24;1427(3):408-16. doi: 10.1016/s0304-4165(99)00049-5.