NCBI Accession #
NP_001078605.1
NCBI GenBank Nucleotide #
NM_001085136.1
NCBI Official Full Name
S-adenosyl-L-methionine-dependent methyltransferases superfamily protein
NCBI Official Symbol
ACL5
NCBI Official Synonym Symbols
ACAULIS 5; SPERMINE SYNTHASE; T20D1.50; T20D1_50
NCBI Protein Information
S-adenosyl-L-methionine-dependent methyltransferases superfamily protein
NCBI Summary
Encodes a spermine synthase. Required for internode elongation and vascular development, specifically in the mechanism that defines the boundaries between veins and nonvein regions. This mechanism may be mediated by polar auxin transport. Though ACL5 has been shown to function as a spermine synthase in E. coli, an ACL5 knockout has no effect on the endogenous levels of free and conjugated polyamines in Arabidopsis, suggesting that ACL5 may have a very specific or altogether different in vivo function.
UniProt Synonym Gene Names
TKV
UniProt Protein Name
Thermospermine synthase ACAULIS5
UniProt Primary Accession #
Q9S7X6
UniProt Secondary Accession #
Q8VWK6; Q8W3K7; Q8W3K8; Q8W3K9; A8MSC8; C0Z321
UniProt Related Accession #
Q9S7X6
UniProt Comments
Required for correct xylem specification through regulation of the lifetime of the xylem elements. Prevents premature death of the xylem vessel elements.