Abstract
We have identified a human cDNA that is homologous to the chicken kinectin, a putative receptor for the organelle motor kinesin. The human cDNA clone hybridized to a single 4.6-kb mRNA species that codes for a protein of 156 kDa molecular mass. The predicted primary translation product contains an N-terminal transmembrane helix followed by a bipartite nuclear localization sequence and two further C-terminal leucine zipper motifs. In addition, the aminoacid sequence revealed a large region (327-1362) of predicted alpha-helical coiled coils. A monoclonal antibody CT-1 raised against a GST-kinectin fusion protein produced a perinuclear, endoplasmic reticulum-like staining pattern in diverse cell types from different species, indicating evolutionary conservation. Monoclonal antibody CT-1 and anti-chicken kinectin antibodies cross-reacted both in Western blotting and immunoprecipitation with a 160-kDa protein, confirming the antigenic identity of this 160-kDa protein with chicken kinectin. Epitope tagging studies revealed that the nuclear localization sequence motif of kinectin is not functional. Furthermore, a truncated kinesin cDNA lacking the N-terminal hydrophobic domain revealed a nonspecific cytoplasmic staining pattern. Together the data suggest that kinectin is an integral membrane protein anchored in the endoplasmic reticulum via a transmembrane domain.
Full text
PDF









Images in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Aviv H., Leder P. Purification of biologically active globin messenger RNA by chromatography on oligothymidylic acid-cellulose. Proc Natl Acad Sci U S A. 1972 Jun;69(6):1408–1412. doi: 10.1073/pnas.69.6.1408. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Bairoch A. PROSITE: a dictionary of sites and patterns in proteins. Nucleic Acids Res. 1991 Apr 25;19 (Suppl):2241–2245. doi: 10.1093/nar/19.suppl.2241. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Chirgwin J. M., Przybyla A. E., MacDonald R. J., Rutter W. J. Isolation of biologically active ribonucleic acid from sources enriched in ribonuclease. Biochemistry. 1979 Nov 27;18(24):5294–5299. doi: 10.1021/bi00591a005. [DOI] [PubMed] [Google Scholar]
- Diehl V., Kirchner H. H., Schaadt M., Fonatsch C., Stein H., Gerdes J., Boie C. Hodgkin's disease: establishment and characterization of four in vitro cell lies. J Cancer Res Clin Oncol. 1981;101(1):111–124. doi: 10.1007/BF00405072. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Feinberg A. P., Vogelstein B. A technique for radiolabeling DNA restriction endonuclease fragments to high specific activity. Anal Biochem. 1983 Jul 1;132(1):6–13. doi: 10.1016/0003-2697(83)90418-9. [DOI] [PubMed] [Google Scholar]
- Gascuel O., Golmard J. L. A simple method for predicting the secondary structure of globular proteins: implications and accuracy. Comput Appl Biosci. 1988 Aug;4(3):357–365. doi: 10.1093/bioinformatics/4.3.357. [DOI] [PubMed] [Google Scholar]
- Hirokawa N., Pfister K. K., Yorifuji H., Wagner M. C., Brady S. T., Bloom G. S. Submolecular domains of bovine brain kinesin identified by electron microscopy and monoclonal antibody decoration. Cell. 1989 Mar 10;56(5):867–878. doi: 10.1016/0092-8674(89)90691-0. [DOI] [PubMed] [Google Scholar]
- Hogan C. J., Wein H., Wordeman L., Scholey J. M., Sawin K. E., Cande W. Z. Inhibition of anaphase spindle elongation in vitro by a peptide antibody that recognizes kinesin motor domain. Proc Natl Acad Sci U S A. 1993 Jul 15;90(14):6611–6615. doi: 10.1073/pnas.90.14.6611. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hurtley S. M., Helenius A. Protein oligomerization in the endoplasmic reticulum. Annu Rev Cell Biol. 1989;5:277–307. doi: 10.1146/annurev.cb.05.110189.001425. [DOI] [PubMed] [Google Scholar]
- Karasuyama H., Melchers F. Establishment of mouse cell lines which constitutively secrete large quantities of interleukin 2, 3, 4 or 5, using modified cDNA expression vectors. Eur J Immunol. 1988 Jan;18(1):97–104. doi: 10.1002/eji.1830180115. [DOI] [PubMed] [Google Scholar]
- Kozak M. Point mutations define a sequence flanking the AUG initiator codon that modulates translation by eukaryotic ribosomes. Cell. 1986 Jan 31;44(2):283–292. doi: 10.1016/0092-8674(86)90762-2. [DOI] [PubMed] [Google Scholar]
- Leonard W. J., Depper J. M., Crabtree G. R., Rudikoff S., Pumphrey J., Robb R. J., Krönke M., Svetlik P. B., Peffer N. J., Waldmann T. A. Molecular cloning and expression of cDNAs for the human interleukin-2 receptor. Nature. 1984 Oct 18;311(5987):626–631. doi: 10.1038/311626a0. [DOI] [PubMed] [Google Scholar]
- Lupas A., Van Dyke M., Stock J. Predicting coiled coils from protein sequences. Science. 1991 May 24;252(5009):1162–1164. doi: 10.1126/science.252.5009.1162. [DOI] [PubMed] [Google Scholar]
- Matthies H. J., Miller R. J., Palfrey H. C. Calmodulin binding to and cAMP-dependent phosphorylation of kinesin light chains modulate kinesin ATPase activity. J Biol Chem. 1993 May 25;268(15):11176–11187. [PubMed] [Google Scholar]
- Mizushima S., Nagata S. pEF-BOS, a powerful mammalian expression vector. Nucleic Acids Res. 1990 Sep 11;18(17):5322–5322. doi: 10.1093/nar/18.17.5322. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Novotný J., Auffray C. A program for prediction of protein secondary structure from nucleotide sequence data: application to histocompatibility antigens. Nucleic Acids Res. 1984 Jan 11;12(1 Pt 1):243–255. doi: 10.1093/nar/12.1part1.243. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Robbins J., Dilworth S. M., Laskey R. A., Dingwall C. Two interdependent basic domains in nucleoplasmin nuclear targeting sequence: identification of a class of bipartite nuclear targeting sequence. Cell. 1991 Feb 8;64(3):615–623. doi: 10.1016/0092-8674(91)90245-t. [DOI] [PubMed] [Google Scholar]
- Sanger F., Nicklen S., Coulson A. R. DNA sequencing with chain-terminating inhibitors. Proc Natl Acad Sci U S A. 1977 Dec;74(12):5463–5467. doi: 10.1073/pnas.74.12.5463. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Schroer T. A., Schnapp B. J., Reese T. S., Sheetz M. P. The role of kinesin and other soluble factors in organelle movement along microtubules. J Cell Biol. 1988 Nov;107(5):1785–1792. doi: 10.1083/jcb.107.5.1785. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Schroer T. A., Sheetz M. P. Functions of microtubule-based motors. Annu Rev Physiol. 1991;53:629–652. doi: 10.1146/annurev.ph.53.030191.003213. [DOI] [PubMed] [Google Scholar]
- Smith D. B., Johnson K. S. Single-step purification of polypeptides expressed in Escherichia coli as fusions with glutathione S-transferase. Gene. 1988 Jul 15;67(1):31–40. doi: 10.1016/0378-1119(88)90005-4. [DOI] [PubMed] [Google Scholar]
- Toyoshima I., Yu H., Steuer E. R., Sheetz M. P. Kinectin, a major kinesin-binding protein on ER. J Cell Biol. 1992 Sep;118(5):1121–1131. doi: 10.1083/jcb.118.5.1121. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Yu H., Nicchitta C. V., Kumar J., Becker M., Toyoshima I., Sheetz M. P. Characterization of kinectin, a kinesin-binding protein: primary sequence and N-terminal topogenic signal analysis. Mol Biol Cell. 1995 Feb;6(2):171–183. doi: 10.1091/mbc.6.2.171. [DOI] [PMC free article] [PubMed] [Google Scholar]






