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Literature summary extracted from

  • Fang, Z.; Wu, B.; Ji, Y.
    The amino acid transporter OsAAP4 contributes to rice tillering and grain yield by regulating neutral amino acid allocation through two splicing variants (2021), Rice (N. Y.), 14, 002.
    View publication on PubMed

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
7.4.2.2 nucleus
-
 Oryza sativa Japonica Group 5634
-
7.4.2.2 plasma membrane
-
 Oryza sativa Japonica Group 5886
-

Organism

EC Number Organism UniProt Comment Textmining
7.4.2.2 Oryza sativa Japonica Group
-
-
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
7.4.2.2 leaf blade and sheath, at the reproductive stage Oryza sativa Japonica Group
-
7.4.2.2 panicle at the reproductive stage Oryza sativa Japonica Group
-
7.4.2.2 root tip and lateral root at vgetative stage Oryza sativa Japonica Group
-
7.4.2.2 stem at the reproductive stage Oryza sativa Japonica Group
-
7.4.2.2 tiller young tiller bud Oryza sativa Japonica Group
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
7.4.2.2 ATP + H2O + L-proline-[L-valine-binding protein][side 1]
-
 Oryza sativa Japonica Group ADP + phosphate + L-proline[side 2] + [L-proline-binding protein][side 1]
-
 ?
7.4.2.2 ATP + H2O + L-valine-[L-valine-binding protein][side 1]
-
 Oryza sativa Japonica Group ADP + phosphate + L-valine[side 2] + [L-valine-binding protein][side 1]
-
 ?

Synonyms

EC Number Synonyms Comment Organism
7.4.2.2 Aap4
-
 Oryza sativa Japonica Group

Expression

EC Number Organism Comment Expression
7.4.2.2 Oryza sativa Japonica Group higher expression occurs in subsp. indica, which produces more tillers and higher grain yield than does subsp. japonica additional information

General Information

EC Number General Information Comment Organism
7.4.2.2 physiological function overexpression of two different splicing variants of AAP4 significantly increases rice tillering and grain yield as result of enhancing the neutral amino acid concentrations of Val, Pro, Thr and Leu. AAP4 RNAi and mutant lines display opposite trends compared with overexpresing lines. Exogenous Val or Pro at 0.5 mM significantly promote the bud outgrowth of lines overexpressing an AAP4a splicing variant, and exogenous Val or Pro at 2.0 mM significantly enhance the bud outgrowth of lines overexpressing splicing variant AAP4b. Val or Pro at different concentrations are specifically transported and accumulate in these overexpressing lines Oryza sativa Japonica Group