Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary extracted from

  • Ida, T.; Crofts, N.; Miura, S.; Matsushima, R.; Fujita, N.
    Structure and properties of starch in rice double mutants lacking starch synthase (SS) IIa and starch branching enzyme (BE) IIb (2021), J. Appl. Glycosci. (1999), 68, 31-39.
    View publication on PubMed

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
2.4.1.21 amyloplast
-
 Oryza sativa Japonica Group 9501
-
2.4.1.21 chloroplast
-
 Oryza sativa Japonica Group 9507
-

Organism

EC Number Organism UniProt Comment Textmining
2.4.1.21 Oryza sativa Japonica Group Q6Z2T8
-
-

Synonyms

EC Number Synonyms Comment Organism
2.4.1.21 SS2a
-
 Oryza sativa Japonica Group
2.4.1.21 SSII-2
-
 Oryza sativa Japonica Group

General Information

EC Number General Information Comment Organism
2.4.1.21 physiological function double mutant rice lines lacking both starch synthase SSIIa and starch branching enzyme BEIIb show similar or greater seed weight than lines lacking only BEIIb, and plant growth is not affected. A line lacking SS2a shows increased short amylopectin chains resulting in a lower gelatinization temperature. Starch granule morphology and A-type crystallinity aere similar between the line lacking SSIIa and the wild type, except for a mild chalky seed phenotype in the line lacking SSIIa. The presence or absence of SSIIa hardly affects the amylopectin structure under the BEIIb-lacking background. The amylose content is significantly higher in the double mutant lines than in the BEIIb-lacking lines. Starch crystallinity is greater in double mutant lines than in BEIIb-lacking lines Oryza sativa Japonica Group