PSK1_ORYSI
ID PSK1_ORYSI Reviewed; 89 AA.
AC A2YFB4; Q67VL3; Q9ST21;
DT 11-SEP-2007, integrated into UniProtKB/Swiss-Prot.
DT 20-MAR-2007, sequence version 1.
DT 25-MAY-2022, entry version 51.
DE RecName: Full=Phytosulfokines 1;
DE Contains:
DE RecName: Full=Phytosulfokine-alpha;
DE Short=PSK-alpha;
DE Short=Phytosulfokine-a;
DE Contains:
DE RecName: Full=Phytosulfokine-beta;
DE Short=PSK-beta;
DE Short=Phytosulfokine-b;
DE Flags: Precursor;
GN Name=PSK1; Synonyms=PSK; ORFNames=OsI_023007;
OS Oryza sativa subsp. indica (Rice).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; BOP clade;
OC Oryzoideae; Oryzeae; Oryzinae; Oryza; Oryza sativa.
OX NCBI_TaxID=39946;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=cv. C5924;
RX PubMed=11198424; DOI=10.1023/a:1026576423870;
RA Yang H., Matsubayashi Y., Hanai H., Nakamura K., Sakagami Y.;
RT "Molecular cloning and characterization of OsPSK, a gene encoding a
RT precursor for phytosulfokine-alpha, required for rice cell proliferation.";
RL Plant Mol. Biol. 44:635-647(2000).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=cv. 93-11;
RX PubMed=15685292; DOI=10.1371/journal.pbio.0030038;
RA Yu J., Wang J., Lin W., Li S., Li H., Zhou J., Ni P., Dong W., Hu S.,
RA Zeng C., Zhang J., Zhang Y., Li R., Xu Z., Li S., Li X., Zheng H., Cong L.,
RA Lin L., Yin J., Geng J., Li G., Shi J., Liu J., Lv H., Li J., Wang J.,
RA Deng Y., Ran L., Shi X., Wang X., Wu Q., Li C., Ren X., Wang J., Wang X.,
RA Li D., Liu D., Zhang X., Ji Z., Zhao W., Sun Y., Zhang Z., Bao J., Han Y.,
RA Dong L., Ji J., Chen P., Wu S., Liu J., Xiao Y., Bu D., Tan J., Yang L.,
RA Ye C., Zhang J., Xu J., Zhou Y., Yu Y., Zhang B., Zhuang S., Wei H.,
RA Liu B., Lei M., Yu H., Li Y., Xu H., Wei S., He X., Fang L., Zhang Z.,
RA Zhang Y., Huang X., Su Z., Tong W., Li J., Tong Z., Li S., Ye J., Wang L.,
RA Fang L., Lei T., Chen C.-S., Chen H.-C., Xu Z., Li H., Huang H., Zhang F.,
RA Xu H., Li N., Zhao C., Li S., Dong L., Huang Y., Li L., Xi Y., Qi Q.,
RA Li W., Zhang B., Hu W., Zhang Y., Tian X., Jiao Y., Liang X., Jin J.,
RA Gao L., Zheng W., Hao B., Liu S.-M., Wang W., Yuan L., Cao M.,
RA McDermott J., Samudrala R., Wang J., Wong G.K.-S., Yang H.;
RT "The genomes of Oryza sativa: a history of duplications.";
RL PLoS Biol. 3:266-281(2005).
RN [3]
RP PROTEIN SEQUENCE OF PSK-ALPHA AND PSK-BETA, CHARACTERIZATION, AND SULFATION
RP AT TYR-80 AND TYR-82.
RX PubMed=9371850; DOI=10.1073/pnas.94.24.13357;
RA Matsubayashi Y., Takagi L., Sakagami Y.;
RT "Phytosulfokine-alpha, a sulfated pentapeptide, stimulates the
RT proliferation of rice cells by means of specific high- and low-affinity
RT binding sites.";
RL Proc. Natl. Acad. Sci. U.S.A. 94:13357-13362(1997).
CC -!- FUNCTION: Promotes plant cell differentiation, organogenesis and
CC somatic embryogenesis as well as cell proliferation.
CC -!- SUBCELLULAR LOCATION: Secreted.
CC -!- TISSUE SPECIFICITY: Expressed throughout the seedling. More abundant in
CC fragments containing shoot or root apexes where cells proliferate
CC vigorously.
CC -!- PTM: Sulfation is important for activity and for the binding to a
CC putative membrane receptor. {ECO:0000269|PubMed:9371850}.
CC -!- PTM: PSK-alpha is produced by endopeptidase digestion. PSK-beta is
CC produced from PSK-alpha by exopeptidase digestion.
CC -!- MISCELLANEOUS: The N-terminal tripeptide (YIY) is the active core.
CC -!- SIMILARITY: Belongs to the phytosulfokine family. {ECO:0000305}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; AB026837; BAB19648.1; -; Genomic_DNA.
DR EMBL; CM000131; EAZ01775.1; -; Genomic_DNA.
DR AlphaFoldDB; A2YFB4; -.
DR EnsemblPlants; BGIOSGA020829-TA; BGIOSGA020829-PA; BGIOSGA020829.
DR Gramene; BGIOSGA020829-TA; BGIOSGA020829-PA; BGIOSGA020829.
DR HOGENOM; CLU_153468_0_0_1; -.
DR OMA; DDTSKWT; -.
DR Proteomes; UP000007015; Chromosome 6.
DR GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR GO; GO:0008083; F:growth factor activity; IEA:UniProtKB-KW.
DR GO; GO:0030154; P:cell differentiation; IEA:UniProtKB-KW.
PE 1: Evidence at protein level;
KW Developmental protein; Differentiation; Direct protein sequencing;
KW Glycoprotein; Growth factor; Reference proteome; Secreted; Signal;
KW Sulfation.
FT SIGNAL 1..22
FT /evidence="ECO:0000255"
FT PROPEP 23..79
FT /evidence="ECO:0000255"
FT /id="PRO_0000300862"
FT PEPTIDE 80..84
FT /note="Phytosulfokine-alpha"
FT /evidence="ECO:0000269|PubMed:9371850"
FT /id="PRO_0000300863"
FT PEPTIDE 80..83
FT /note="Phytosulfokine-beta"
FT /evidence="ECO:0000269|PubMed:9371850"
FT /id="PRO_0000300864"
FT PROPEP 85..89
FT /evidence="ECO:0000255"
FT /id="PRO_0000300865"
FT REGION 33..68
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 38..68
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT MOD_RES 80
FT /note="Sulfotyrosine"
FT /evidence="ECO:0000269|PubMed:9371850"
FT MOD_RES 82
FT /note="Sulfotyrosine"
FT /evidence="ECO:0000269|PubMed:9371850"
FT CARBOHYD 42
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
SQ SEQUENCE 89 AA; 9812 MW; FE3BC89B7AAE237E CRC64;
MVNPGRTARA LCLLCLALLL LGQDTHSRKL LLQEKHSHGV GNGTTTTQEP SRENGGSTGS
NNNGQLQFDS AKWEEFHTDY IYTQDVKNP
