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

BRENDA support

Literature summary for 2.5.1.43 extracted from

  • Inoue, H.; Higuchi, K.; Takahashi, M.; Nakanishi, H.; Mori, S.; Nishizawa, N.K.
    Three rice nicotianamine synthase genes, OsNAS1, OsNAS2, and OsNAS3 are expressed in cells involved in long-distance transport of iron and differentially regulated by iron (2003), Plant J., 36, 366-381.
    View publication on PubMed

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
S-adenosyl-L-methionine Oryza sativa nicotinamine synthase and nicotinamine play an important role in long-distance transport of Fe in rice plants, in addition to their roles in phytosiderophore secretion from roots 5'-S-methyl-5'-thioadenosine + nicotianamine
-
?

Organism

Organism UniProt Comment Textmining
Oryza sativa
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
leaf OsNAS1 and OsNAS2 transcripts are not detected in Fe-sufficient roots, OsNAS3 transcript is present, expression is suppressed in response to Fe deficiency. In Fe-deficient plants, OsNAS1 and OsNAS2 are expressed in the vascular bundles of green leafes showing severe chlorosis. OsNAS3 expression is restricted to companion cells of leaves irrespective of Fe status Oryza sativa
-
root OsNAS1 and OsNAS2 transcripts are detected in Fe-sufficient roots, very low in roots of Fe-sufficient plants. OsNAS3 transcript is very low in roots of Fe-sufficients plants. OsNAS3 expression is induced in response to Fe deficiency. OsNAS1 and OsNAs2 are expressed in Fe-sufficient roots in companion cells and pericycle cells adjacent to the protoxylem. With Fe deficiency, OsNAS1 and OsNAS2 expression extends to all root cells along with an increase in phytosiderophore secretion. OsNAS3 expression is restricted to the pericycle and companion cells of the roots, irrespective of Fe status Oryza sativa
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
S-adenosyl-L-methionine nicotinamine synthase and nicotinamine play an important role in long-distance transport of Fe in rice plants, in addition to their roles in phytosiderophore secretion from roots Oryza sativa 5'-S-methyl-5'-thioadenosine + nicotianamine
-
?

Synonyms

Synonyms Comment Organism
NA synthase
-
Oryza sativa
NAS
-
Oryza sativa