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Literature summary extracted from

  • Ma, J.; Cheng, Z.; Chen, J.; Shen, J.; Zhang, B.; Ren, Y.; Ding, Y.; Zhou, Y.; Zhang, H.; Zhou, K.; Wang, J.L.; Lei, C.; Zhang, X.; Guo, X.; Gao, H.; Bao, Y.; Wan, J.M.
    Phosphatidylserine synthase controls cell elongation especially in the uppermost internode in rice by regulation of exocytosis (2016), PLoS ONE, 11, e0153119.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

EC Number Cloned (Comment) Organism
2.7.8.8 transformation of OsPSS-1-GFP in Arabidopsis thaliana protoplasts, subcellular localization in endoplasmic reticulum, plasma membrane, and trans-Golgi network/early endosomes Oryza sativa Japonica Group

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
2.7.8.8 endoplasmic reticulum
-
 Oryza sativa Japonica Group 5783
-
2.7.8.8 endosome early endosomes Oryza sativa Japonica Group 5768
-
2.7.8.8 Golgi apparatus
-
 Oryza sativa Japonica Group 5794
-
2.7.8.8 additional information OsPSS-1 localizes to organelles associated with exocytosis Oryza sativa Japonica Group
-
-
2.7.8.8 plasma membrane
-
 Oryza sativa Japonica Group 5886
-
2.7.8.8 trans-Golgi network
-
 Oryza sativa Japonica Group 5802
-

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
2.7.8.8 CDP-diacylglycerol + L-serine Oryza sativa Japonica Group
-
 CMP + (3-sn-phosphatidyl)-L-serine
-
 ?

Organism

EC Number Organism UniProt Comment Textmining
2.7.8.8 Oryza sativa Japonica Group Q0JR55 cv. Kitaake
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
2.7.8.8 culm
-
 Oryza sativa Japonica Group
-
2.7.8.8 internode especially the uppermost Oryza sativa Japonica Group
-
2.7.8.8 internode isozyme OsPSS-1 gene is expressed predominantly in elongating cells Oryza sativa Japonica Group
-
2.7.8.8 leaf
-
 Oryza sativa Japonica Group
-
2.7.8.8 additional information quantitative reverse transcription polymerase chain reaction (qRT-PCR) analyses of wild-type plants reveals that OsPSS-1 is expressed in various organs, including roots, culms, and leaves, with the highest expression in panicles Oryza sativa Japonica Group
-
2.7.8.8 panicle
-
 Oryza sativa Japonica Group
-
2.7.8.8 root
-
 Oryza sativa Japonica Group
-
2.7.8.8 seedling
-
 Oryza sativa Japonica Group
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.7.8.8 CDP-diacylglycerol + L-serine
-
 Oryza sativa Japonica Group CMP + (3-sn-phosphatidyl)-L-serine
-
 ?

Synonyms

EC Number Synonyms Comment Organism
2.7.8.8 OsPSS
-
 Oryza sativa Japonica Group
2.7.8.8 OsPSS-1
-
 Oryza sativa Japonica Group
2.7.8.8 phosphatidylserine synthase
-
 Oryza sativa Japonica Group

General Information

EC Number General Information Comment Organism
2.7.8.8 malfunction mutation of OsPSS-1 leads to compromised delivery of CESA4 and secGFP towards the cell surface, resulting in weakened intercellular adhesion and disorganized cell arrangement in parenchyma. The Dwarf phenotype of shortened uppermost internode 1 (sui1) is caused by mutations in phosphatidylserine synthase. The phenotype of sui1-4 is caused largely by the reduction in cellulose contents in the whole plant and detrimental delivery of pectins in the uppermost internode. sui1-4 plants exhibit compromised secretion. The mutants show reduced length of both panicles and internodes, especially the uppermost internode, accompanied with reduced fertility, decreased grain size and slightly increased tiller number, defective pectin secretion, detailed overview. A large amount of OsCESA4 remained in the cytoplasm in the mutant, most likely due to failure in delivery to the plasma membrane Oryza sativa Japonica Group
2.7.8.8 physiological function the primary role of PSS enzymes is (3-sn-phosphatidyl)-L-serine biosynthesis, and isozyme PPS1 regulates post-Golgi vesicle secretion to intercellular spaces, the enzyme function is associated with exocytosis. Isozyme PSS1 plays a potential role in mediating cell expansion by regulating secretion of cell wall components Oryza sativa Japonica Group