| http://purl.uniprot.org/citations/10557360 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/10557360 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/10557360 | http://www.w3.org/2000/01/rdf-schema#comment | "Phytosulfokine-alpha [PSK-alpha, Tyr(SO(3)H)-Ile-Tyr(SO(3)H)-Thr-Gln], a sulfated mitogenic peptide found in plants, strongly promotes proliferation of plant cells in culture at very low concentrations. Oryza sativa PSK (OsPSK) cDNA encoding a PSK-alpha precursor has been isolated. The cDNA is 725 base pairs long, and the 89-aa product, preprophytosulfokine, has a 22-aa hydrophobic region that resembles a cleavable leader peptide at its NH(2) terminus. The PSK-alpha sequence occurs only once within the precursor, close to the COOH terminus. [Ser(4)]PSK-alpha was secreted by transgenic rice Oc cells harboring a mutated OsPSK cDNA, suggesting proteolytic processing from the larger precursor, a feature commonly found in animal systems. Whereas PSK-alpha in conditioned medium with sense transgenic Oc cells was 1.6 times as concentrated as in the control case, antisense transgenic Oc cells produced less than 60% of the control level. Preprophytosulfokine mRNA was detected at an elevated constitutive level in rice Oc culture cells on RNA blot analysis. Although PSK-alpha molecules have never been identified in any intact plant, reverse transcription-PCR analysis demonstrated that OsPSK is expressed in rice seedlings, indicating that PSK-alpha may be important for plant cell proliferation both in vitro and in vivo. DNA blot analysis demonstrated that OsPSK homologs may occur in dicot as well as monocot plants."xsd:string |
| http://purl.uniprot.org/citations/10557360 | http://purl.org/dc/terms/identifier | "doi:10.1073/pnas.96.23.13560"xsd:string |
| http://purl.uniprot.org/citations/10557360 | http://purl.org/dc/terms/identifier | "doi:10.1073/pnas.96.23.13560"xsd:string |
| http://purl.uniprot.org/citations/10557360 | http://purl.uniprot.org/core/author | "Nakamura K."xsd:string |
| http://purl.uniprot.org/citations/10557360 | http://purl.uniprot.org/core/author | "Nakamura K."xsd:string |
| http://purl.uniprot.org/citations/10557360 | http://purl.uniprot.org/core/author | "Yang H."xsd:string |
| http://purl.uniprot.org/citations/10557360 | http://purl.uniprot.org/core/author | "Yang H."xsd:string |
| http://purl.uniprot.org/citations/10557360 | http://purl.uniprot.org/core/author | "Matsubayashi Y."xsd:string |
| http://purl.uniprot.org/citations/10557360 | http://purl.uniprot.org/core/author | "Matsubayashi Y."xsd:string |
| http://purl.uniprot.org/citations/10557360 | http://purl.uniprot.org/core/author | "Sakagami Y."xsd:string |
| http://purl.uniprot.org/citations/10557360 | http://purl.uniprot.org/core/author | "Sakagami Y."xsd:string |
| http://purl.uniprot.org/citations/10557360 | http://purl.uniprot.org/core/date | "1999"xsd:gYear |
| http://purl.uniprot.org/citations/10557360 | http://purl.uniprot.org/core/date | "1999"xsd:gYear |
| http://purl.uniprot.org/citations/10557360 | http://purl.uniprot.org/core/name | "Proc. Natl. Acad. Sci. U.S.A."xsd:string |
| http://purl.uniprot.org/citations/10557360 | http://purl.uniprot.org/core/name | "Proc. Natl. Acad. Sci. U.S.A."xsd:string |
| http://purl.uniprot.org/citations/10557360 | http://purl.uniprot.org/core/pages | "13560-13565"xsd:string |
| http://purl.uniprot.org/citations/10557360 | http://purl.uniprot.org/core/pages | "13560-13565"xsd:string |
| http://purl.uniprot.org/citations/10557360 | http://purl.uniprot.org/core/title | "Oryza sativa PSK gene encodes a precursor of phytosulfokine-alpha, a sulfated peptide growth factor found in plants."xsd:string |
| http://purl.uniprot.org/citations/10557360 | http://purl.uniprot.org/core/title | "Oryza sativa PSK gene encodes a precursor of phytosulfokine-alpha, a sulfated peptide growth factor found in plants."xsd:string |
| http://purl.uniprot.org/citations/10557360 | http://purl.uniprot.org/core/volume | "96"xsd:string |
| http://purl.uniprot.org/citations/10557360 | http://purl.uniprot.org/core/volume | "96"xsd:string |
| http://purl.uniprot.org/citations/10557360 | http://www.w3.org/2004/02/skos/core#exactMatch | http://purl.uniprot.org/pubmed/10557360 |
| http://purl.uniprot.org/citations/10557360 | http://www.w3.org/2004/02/skos/core#exactMatch | http://purl.uniprot.org/pubmed/10557360 |