Thermospermine synthase References External links Navigation menu2.5.1.79IntEnz viewBRENDA entryNiceZyme viewKEGG entrymetabolic pathwayprofileRCSB PDBPDBePDBsumarticlesarticlesproteins2.5.1.791907532210.1016/j.febslet.2007.05.0741756057510.1242/dev.01934918599510Thermospermine+synthaseee

DimethylallyltranstransferaseThiaminase IMethionine adenosyltransferaseRiboflavin synthaseDihydropteroate synthaseSpermidine synthaseGlutathione S-transferaseFarnesyl-diphosphate farnesyltransferaseSpermine synthaseAlkylglycerone phosphate synthaseFarnesyltransferaseGeranylgeranyltransferase type 1Porphobilinogen deaminaseActive siteBinding siteCatalytic triadOxyanion holeEnzyme promiscuityCatalytically perfect enzymeCoenzymeCofactorEnzyme catalysisEC numberEnzyme superfamilyEnzyme familyList of enzymesOxidoreductaseslistTransferaseslistHydrolaseslistLyaseslistIsomeraseslistLigaseslistTranslocaseslist


EC 2.5.1


EC2.5.1.79enzymesystematic namecatalyseschemical reactionxylem




















Thermospermine synthase
Identifiers
EC number2.5.1.79
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile

PDB structures		RCSB PDB PDBe PDBsum






Thermospermine synthase (EC 2.5.1.79, TSPMS, ACL5 (ACAULIS5), SAC51) is an enzyme with systematic name S-adenosylmethioninamine:spermidine 3-aminopropyltransferase (thermospermine synthesizing).[1][2][3] This enzyme catalyses the following chemical reaction



S-adenosylmethioninamine + spermidine ⇌displaystyle rightleftharpoons S-methyl-5'-thioadenosine + thermospermine + H+

This enzyme is required for correct xylem specification through regulation of the lifetime of the xylem elements.



References




  1. ^ Romer P, Faltermeier A, Mertins V, Gedrange T, Mai R, Proff P (November 2008). "Investigations about N-aminopropyl transferases probably involved in biomineralization". Journal of Physiology and Pharmacology. 59 Suppl 5: 27–37. PMID 19075322..mw-parser-output cite.citationfont-style:inherit.mw-parser-output .citation qquotes:"""""""'""'".mw-parser-output .citation .cs1-lock-free abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-subscription abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registrationcolor:#555.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted;cursor:help.mw-parser-output .cs1-ws-icon abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center.mw-parser-output code.cs1-codecolor:inherit;background:inherit;border:inherit;padding:inherit.mw-parser-output .cs1-hidden-errordisplay:none;font-size:100%.mw-parser-output .cs1-visible-errorfont-size:100%.mw-parser-output .cs1-maintdisplay:none;color:#33aa33;margin-left:0.3em.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-formatfont-size:95%.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-leftpadding-left:0.2em.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-rightpadding-right:0.2em


  2. ^ Knott JM, Römer P, Sumper M (June 2007). "Putative spermine synthases from Thalassiosira pseudonana and Arabidopsis thaliana synthesize thermospermine rather than spermine". FEBS Letters. 581 (16): 3081–6. doi:10.1016/j.febslet.2007.05.074. PMID 17560575.


  3. ^ Muñiz L, Minguet EG, Singh SK, Pesquet E, Vera-Sirera F, Moreau-Courtois CL, Carbonell J, Blázquez MA, Tuominen H (August 2008). "ACAULIS5 controls Arabidopsis xylem specification through the prevention of premature cell death". Development. 135 (15): 2573–82. doi:10.1242/dev.019349. PMID 18599510.




External links



  • Thermospermine+synthase at the US National Library of Medicine Medical Subject Headings (MeSH)








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