Os07g0186200 - Revision history

Xysj2012: /* Structured Information */

2015-06-12T08:34:32Z

‎Structured Information

Zhangye at 08:54, 15 April 2015

2015-04-15T08:54:16Z

Zhangye at 06:35, 13 April 2015

2015-04-13T06:35:38Z

Zhangye at 07:25, 17 January 2015

2015-01-17T07:25:15Z

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Superboy wpc: /* Expression */

2014-05-21T12:52:02Z

‎Expression

Superboy wpc: /* Function */

2014-05-21T12:51:49Z

‎Function

Superboy wpc: /* Function */

2014-05-21T12:51:29Z

‎Function

Superboy wpc: /* Function */

2014-05-21T12:50:45Z

‎Function

Superboy wpc: /* Expression */

2014-05-21T12:49:54Z

‎Expression

Superboy wpc: /* References */

2014-05-21T12:48:55Z

‎References

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 ==Structured Information==
 [[Category:Genes]]
 [[Category:Japonica mRNA]]

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 ===Evolution===
 *Two paralogues, [[Os06g0203800| ''OsRLK1'' (Os06g0203800)]] and [[Os02g0777400|''OsRLK2''(Os02g0777400)]], were found in the rice genome. These homology with ''Arabidopsis'' '''RLKs''' AtER (63%), AtERL1 (70%) and AtERL2 (70%). In the kinase domain, the identities were 72, 84 and 82%, respectively. ''OsSIK1'' has high similarity with '''ER family''' proteins from ''Arabidopsis'', especially in the kinase domain. The three (ER) RLKs together control stomatal patterning, with specific family members regulating the specification of stomatal stem cell fate and the differentiation of guard cells in ''Arabidopsis''<ref name="ref3"/>.
 *But [[Os06g0130100|''OsSIK1'']] and ''OsSIK2'' share only 30.56% and 18.04% amino acid identities with '''LP2''', respectively<ref name="ref4"/>.
 *[[Os06g0130100|''OsSIK1'']]<ref name="ref3"/>, ''OsSIK2'' and [[Os02g0615800|''LP2'']] proteins all belong to the '''LRR-RLK gene family''', ''LP2'' does not share significant primary sequence homology with ''OsSIK1'' and ''OsSIK2''. Phylogenetic analysis revealed that the three proteins are in different subgroups(Figure 2)<ref name="ref4"/>.
 ===Knowledge Extension===
 *'''RLK''' comprises one of the largest families, with more than 610 and '''1,131''' members in Arabidopsis (''Arabidopsis thaliana'') and '''rice''' (''Oryza sativa''), respectively. Intracellular kinase domains are relatively conserved with Ser/Thr kinase activity to transduce signals. Based on the identity of extracellular domains, RLKs are classified into 44 subfamilies. The biggest subfamily is leucine-rich repeats (LRRs), and the other subfamilies include S-domains, Domain of Unknown Function26, CELL WALL-ASSOCIATED KINASE-like, and others<ref name="ref5"/>.
 *Receptor-like kinases ('''RLKs''') play essential roles in plant growth, development and responses to environmental stresses. Most RLKs have kinase activity using Mn<sup>2+</sup> as a co-factor<ref name="ref6"/><ref name="ref7"/><ref name="ref8"/>. Similarly, ''OsSIK1'' has kinase activity in the presence of Mn<sup>2+</sup>. RLKs may have activity in the presence of other ions. Phosphorylation with various ions may indicate thatdifferent RLKs can function under unfavorable conditions or in response to different stresses.
-[[File: RLKs Overview1.jpg|left|thumb|310px|'''Figure 3.''' ''Overview of plant receptor-like kinases (RLKs) and their functions.(from reference <ref name="ref9"/>).'']]
 *The membrane-localized RLKs have been shown to control diverse signalling events (Fig. 3)<ref name="ref9"/>, and these RLKs constitute the largest gene family in various plant genomes, with >600 members in Arabidopsis and 1100 members in rice, and are classified based on their extracellular structures. The RLKs regulate the homeostatic mechanisms underlying abiotic and biotic stress responses and have a major role in integrating environmental and plant hormone signallings.In addition, RLKs have been known to have a major role in integrating environmental and plant hormone signalling<ref name="ref5"/><ref name="ref9"/><ref name="ref10"/>(Fig. 3).

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 *Receptor-like kinases ('''RLKs''') play essential roles in plant growth, development and responses to environmental stresses. Most RLKs have kinase activity using Mn<sup>2+</sup> as a co-factor<ref name="ref6"/><ref name="ref7"/><ref name="ref8"/>. Similarly, ''OsSIK1'' has kinase activity in the presence of Mn<sup>2+</sup>. RLKs may have activity in the presence of other ions. Phosphorylation with various ions may indicate thatdifferent RLKs can function under unfavorable conditions or in response to different stresses.
-[[File: RLKs Overview1.jpg|right|thumb|310px|'''Figure 3.''' ''Overview of plant receptor-like kinases (RLKs) and their functions.(from reference <ref name="ref9"/>).'']]
+[[File: RLKs Overview1.jpg|left|thumb|310px|'''Figure 3.''' ''Overview of plant receptor-like kinases (RLKs) and their functions.(from reference <ref name="ref9"/>).'']]
 *The membrane-localized RLKs have been shown to control diverse signalling events (Fig. 3)<ref name="ref9"/>, and these RLKs constitute the largest gene family in various plant genomes, with >600 members in Arabidopsis and 1100 members in rice, and are classified based on their extracellular structures. The RLKs regulate the homeostatic mechanisms underlying abiotic and biotic stress responses and have a major role in integrating environmental and plant hormone signallings.In addition, RLKs have been known to have a major role in integrating environmental and plant hormone signalling<ref name="ref5"/><ref name="ref9"/><ref name="ref10"/>(Fig. 3).

← Older revision		Revision as of 12:52, 21 May 2014
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	===Expression===		===Expression===
−	~~Please input expression information here.~~
	OsSIK2 is expressed mainly in rice leaf and sheath and can be induced by NaCl, drought, cold, dark, and abscisic acid treatment. Transgenic plants overexpressing OsSIK2 and mutant sik2 exhibit enhanced and reduced tolerance to salt and drought stress, respectively, compared with the controls.		OsSIK2 is expressed mainly in rice leaf and sheath and can be induced by NaCl, drought, cold, dark, and abscisic acid treatment. Transgenic plants overexpressing OsSIK2 and mutant sik2 exhibit enhanced and reduced tolerance to salt and drought stress, respectively, compared with the controls.

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 ==Annotated Information==
 ===Function===
 The downstream PR-related genes specifically up-regulated by full-length OsSIK2 or the DREB-like genes solely enhanced by truncated OsSIK2 are all induced by salt, drought, and dark treatments. These results indicate that OsSIK2 may integrate stress signals into a developmental program for better adaptive growth under unfavorable conditions. Manipulation of OsSIK2 should facilitate the improvement of production in rice and other crops.

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 ===Function===
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 ===Expression===

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 ==References==
 Please input cited references here.
 ==Structured Information==