Gene - Detail

Detail of Gene

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Basic Information
CGSNL Gene Symbol SPK
Gene Symbol Synonym CDPK 1, CDPK1, CDPK23, OsCDPK23, OsCPK23, CPK23, OsSPK
Gene Name Synonym seed-specific protein kinase, "Calcium-dependent protein kinase, isoform 1", Calcium-dependent protein kinase isoform 1, calcium-dependent protein kinase 23, endosperm-specific sucrose synthase protein kinase
Allele spk-1, spk-2
Chromosome No. 10
Explanation This gene encodes a calcium-dependent seed-specific protein kinase. The genomic region consists of SPK-A and SPK-B, both of them being located on different chromosomes (Chrom. 6 and Chrom. 10). EC= AC073166, AE017116, D13436. E07613. P53682. PO:0009089; endosperm ; PO:0009010; seed. GRO:0007046; 07-milk stage. KC610844-KC610855 (O. sativa and wild rice species, partial cds). OsCDPK23 (OsCPK23) in Asano et al. 2005, Ray et al. 2007, Tanaka et al. 2006.
Trait Class Biochemical character
Seed - Morphological traits - Endosperm
Seed - Physiological traits - Storage substances
Tolerance and resistance - Stress tolerance
cDNA Accession No. AK065456
MSU ID LOC_Os10g39420.1
RAP ID Os10g0539600
Links Oryzabase Chromosome View ( IRGSP 1.0 / Build5 )
RAP-DB ( IRGSP 1.0 / Build5 )
Related IDs List ( IRGSP 1.0 / Build5 )
INSD Accession List
(Test version)
Link to INSD Accession List
Link map Classical linkage map
Marques J., Matiolli C.C., Abreu I.A.
MicroPubl Biol 2022  2022 
Visualization of a curated <i>Oryza sativa</i> L. CDPKs Protein-Protein Interaction Network <i>(</i>CDPK-OsPPIN<i>)</i>.
Niu B., Zhang Z., Zhang J., Zhou Y., Chen C.
Plant J. 2021  106(5)  1233-1246
The rice LEC1-like transcription factor OsNF-YB9 interacts with SPK, an endosperm-specific sucrose synthase protein kinase, and functions in seed development.
Wu J., Wang Y., Kim S.G., Jung K.H., Gupta R., Kim J., Park Y., Kang K.Y., Kim S.T.
Physiol Plant 2017   
A secreted chitinase-like protein (OsCLP) supports root growth through calcium signaling in Oryza sativa.
Zhu,T., Xu,P.Z., Liu,J.P., Peng,S., Mo,X.C. and Gao,L.Z.
Mol. Phylogenet. Evol. 2014  70  348-361
Phylogenetic relationships and genome divergence among the AA- genome species of the genus Oryza as revealed by 53 nuclear genes and 16 intergenic regions
Ye S,Wang L,Xie W,Wan B,Li X,Lin Y
Plant Mol. Biol. 2009  70  311-25
Expression profile of calcium-dependent protein kinase (CDPKs) genes during the whole lifespan and under phytohormone treatment conditions in rice (Oryza sativa L. ssp. indica).
Ray S,Agarwal P,Arora R,Kapoor S,Tyagi AK
Mol. Genet. Genomics 2007  278  493-505
Expression analysis of calcium-dependent protein kinase gene family during reproductive development and abiotic stress conditions in rice (Oryza sativa L. ssp. indica).
Tanaka N,Matsuoka M,Kitano H,Asano T,Kaku H,Komatsu S
Plant Cell Environ. 2006  29  619-31
gid1, a gibberellin-insensitive dwarf mutant, shows altered regulation of probenazole-inducible protein (PBZ1) in response to cold stress and pathogen attack.
Asano T, Tanaka N, Yang G, Hayashi N, Komatsu S.
Plant Cell Physiol. 2005  46(2)  356-66
Genome-wide identification of the rice calcium-dependent protein kinase and its closely related kinase gene families: comprehensive analysis of the CDPKs gene family in rice.
Asano T., Kunieda N., Omura Y., Ibe H., Kawasaki T., Takano M., Sato M., Furuhashi H., Mujin T., Takaiwa F., Chuan-yin Wu Cy, Tada Y., Satozawa T., Sakamoto M., Shimada H.
Plant Cell 2002  14(3)  619-28
Rice SPK, a calmodulin-like domain protein kinase, is required for storage product accumulation during seed development: phosphorylation of sucrose synthase is a possible factor.
Kawasaki, T., S. Okumura, N. Kishimoto, H. Shimada, K. Higo and N. Ichikawa
Plant J. 1999  18(6)  625-632
RNA maturation of the rice SPK gene may involve trans-splicing.
Kawasaki,T., Hayashida,N., Baba,T., Shinozaki,K. and Shimada,H.
Gene 1993  129(2)  183-189
The gene encoding a calcium-dependent protein kinase located near the sbe1 gene encoding starch branching enzyme I is specifically expressed in developing rice seeds.
TextPresso Search Search textpresso for SPK ( Recent references may be retrievable, but without any warranty )
DB Reference
Gramene ID GR:0080031
Gene Ontology cytoplasm( GO:0005737 )
protein kinase activity( GO:0004672 )
protein serine/threonine kinase activity( GO:0004674 )
calcium ion binding( GO:0005509 )
protein binding( GO:0005515 )
ATP binding( GO:0005524 )
protein amino acid phosphorylation( GO:0006468 )
calcium-dependent protein kinase activity( GO:0010857 )
membrane( GO:0016020 )
starch biosynthetic process( GO:0019252 )
anchored to membrane( GO:0031225 )
seed development( GO:0048316 )
response to cold( GO:0009409 )
Trait Ontology starch content( TO:0000696 )
seed development trait( TO:0000653 )
endosperm storage protein content( TO:0002653 )
shrunken endosperm( TO:0000100 )
wrinkled seed( TO:0000718 )
starch grain synthesis( TO:0002658 )
sucrose content( TO:0000328 )
days to maturity( TO:0000469 )
leaf senescence( TO:0000249 )
cold tolerance( TO:0000303 )
chalky endosperm( TO:0000266 )
Plant Ontology seed( PO:0009010 )
endosperm( PO:0009089 )
endosperm development stage( PO:0007633 )
Related Strains
Phenotype images
Last updated
Feb 22, 2023