| General information | | DisProt: | DP00532 | | Name: | Thylakoid soluble phosphoprotein | | Synonym(s): | Q8GT36_SPIOL
| | First appeared in release: | Release 3.7 (01/28/2008) | | UniProt: | Q8GT36 | | UniGene: | | | SwissProt: | Q8GT36_SPIOL | | TrEMBL: | | | NCBI (GI): | 75244174 | | Source organism: | Spinacia oleracea (Spinach) | | Sequence length: | 103 | | Percent disordered: | 100% | | Homologues: | |
| Native sequence |
10 20 30 40 50 60
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MSSLPFVFGA AASSRVVTAA AAKGTAETKQ EKSFVDWLLG KITKEDQFYE TDPILRGGDV - 60
KSSGSTSGKK GGTTSGKKGT VSIPSKKKNG NGGVFGGLFA KKD
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| Functional narrative |
Thylakoid soluble phosphoprotein of 9 kDa (TSP9) has been identified as a plant-specific protein in the photosynthetic thylakoid membrane. Nonphosphorylated TSP9 is associated with the membrane, whereas, after light-induced phosphorylation, a fraction of the phosphorylated TSP9 is released into the aqueous stroma. Mass spectrometric analyses revealed the existence of non-, mono-, di-, and triphosphorylated forms of TSP9 and phosphorylation of three distinct threonine residues in the central part of the protein. The phosphorylation and release of TSP9 from the photosynthetic membrane on illumination favor participation of this basic protein in cell signaling and regulation of plant gene expression in response to changing light conditions.
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| Map of ordered and disordered regions |
Note: 'Mouse' over a region to see the start and stop residues. Click on a region to see detailed information.
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| Region 1 | | Type: | Disordered | | Name: | | | Location: | 1 - 103 | | Length: | 103 | | Region sequence: |
MSSLPFVFGAAASSRVVTAAAAKGTAETKQEKSFVDWLLGKITKEDQFYETDPILRGGDV
KSSGSTSGKKGGTTSGKKGTVSIPSKKKNGNGGVFGGLFAKKD | | Modification type: | Native
| | PDB: | | | Structural/functional type: | Function arises via a disorder to order transition
| | Functional classes: | | | Functional subclasses: | | Detection methods:
| References:
- Song J, Lee MS, Carlberg I, Vener AV, Markley JL. "Micelle-Induced Folding of Spinach Thylakoid Soluble Phosphoprotein of 9 kDa and Its Functional Implications." Biochemistry. 2006; 45(51): 15633-15643. PubMed: 17176085
| Comments:
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| References |
- Carlberg I, Hansson M, Kieselbach T, Schröder WP, Andersson B, Vener AV. "A novel plant protein undergoing light-induced phosphorylation and release from the photosynthetic thylakoid membranes." Proc Natl Acad Sci U S A. 2003; 100(2): 757-62. PubMed: 12524456
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