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Protein

S-adenosylmethionine decarboxylase proenzyme

Gene

SPE2

Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

S-adenosylmethionine decarboxylase is essential for normal growth, sporulation, maintenance of ds-RNA virus, biosynthesis of spermine and spermidine.

Miscellaneous

Present with 7060 molecules/cell in log phase SD medium.1 Publication

Catalytic activityi

S-adenosyl-L-methionine = S-adenosyl 3-(methylthio)propylamine + CO2.

Cofactori

pyruvateNote: Binds 1 pyruvoyl group covalently per subunit.

Pathwayi: S-adenosylmethioninamine biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes S-adenosylmethioninamine from S-adenosyl-L-methionine.
Proteins known to be involved in this subpathway in this organism are:
  1. S-adenosylmethionine decarboxylase proenzyme (SPE2)
This subpathway is part of the pathway S-adenosylmethioninamine biosynthesis, which is itself part of Amine and polyamine biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes S-adenosylmethioninamine from S-adenosyl-L-methionine, the pathway S-adenosylmethioninamine biosynthesis and in Amine and polyamine biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Active sitei29By similarity1
Active sitei32By similarity1
Active sitei88Schiff-base intermediate with substrate; via pyruvic acidBy similarity1
Active sitei102Proton donor; for catalytic activityBy similarity1
Active sitei287Proton acceptor; for processing activityBy similarity1
Active sitei301Proton acceptor; for processing activityBy similarity1

GO - Molecular functioni

  • adenosylmethionine decarboxylase activity Source: SGD

GO - Biological processi

  • pantothenate biosynthetic process Source: SGD
  • S-adenosylmethioninamine biosynthetic process Source: UniProtKB-UniPathway
  • spermidine biosynthetic process Source: SGD
  • spermine biosynthetic process Source: SGD

Keywordsi

Molecular functionDecarboxylase, Lyase
Biological processPolyamine biosynthesis, Spermidine biosynthesis
LigandPyruvate, S-adenosyl-L-methionine, Schiff base

Enzyme and pathway databases

BioCyciMetaCyc:MONOMER-20234
YEAST:MONOMER-20234
BRENDAi4.1.1.50 984
ReactomeiR-SCE-351202 Metabolism of polyamines
UniPathwayiUPA00331; UER00451

Names & Taxonomyi

Protein namesi
Recommended name:
S-adenosylmethionine decarboxylase proenzyme (EC:4.1.1.50)
Short name:
AdoMetDC
Short name:
SAMDC
Cleaved into the following 2 chains:
Gene namesi
Name:SPE2
Ordered Locus Names:YOL052C
ORF Names:O1275
OrganismiSaccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
Taxonomic identifieri559292 [NCBI]
Taxonomic lineageiEukaryotaFungiDikaryaAscomycotaSaccharomycotinaSaccharomycetesSaccharomycetalesSaccharomycetaceaeSaccharomyces
Proteomesi
  • UP000002311 Componenti: Chromosome XV

Organism-specific databases

EuPathDBiFungiDB:YOL052C
SGDiS000005412 SPE2

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cell wall Cytoskeleton Vacuole Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00000300331 – 87S-adenosylmethionine decarboxylase beta chainAdd BLAST87
ChainiPRO_000003003488 – 396S-adenosylmethionine decarboxylase alpha chainAdd BLAST309

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei88Pyruvic acid (Ser); by autocatalysis1

Post-translational modificationi

Is synthesized initially as an inactive proenzyme. Formation of the active enzyme involves a self-maturation process in which the active site pyruvoyl group is generated from an internal serine residue via an autocatalytic post-translational modification. Two non-identical subunits are generated from the proenzyme in this reaction, and the pyruvate is formed at the N-terminus of the alpha chain, which is derived from the carboxyl end of the proenzyme. The post-translation cleavage follows an unusual pathway, termed non-hydrolytic serinolysis, in which the side chain hydroxyl group of the serine supplies its oxygen atom to form the C-terminus of the beta chain, while the remainder of the serine residue undergoes an oxidative deamination to produce ammonia and the pyruvoyl group blocking the N-terminus of the alpha chain (By similarity).By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sitei87 – 88Cleavage (non-hydrolytic); by autolysis2

Keywords - PTMi

Autocatalytic cleavage, Zymogen

Proteomic databases

MaxQBiP21182
PaxDbiP21182
PRIDEiP21182

Interactioni

Binary interactionsi

WithEntry#Exp.IntActNotes
SWC7Q067072EBI-5655,EBI-32671

Protein-protein interaction databases

BioGridi34352, 293 interactors
DIPiDIP-361N
IntActiP21182, 3 interactors
MINTiP21182
STRINGi4932.YOL052C

Structurei

3D structure databases

ProteinModelPortaliP21182
SMRiP21182
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the eukaryotic AdoMetDC family.Curated

Phylogenomic databases

GeneTreeiENSGT00390000011776
HOGENOMiHOG000159915
InParanoidiP21182
KOiK01611
OMAiMYHIRGE
OrthoDBiEOG092C3O9X

Family and domain databases

InterProiView protein in InterPro
IPR001985 S-AdoMet_decarboxylase
IPR016067 S-AdoMet_deCO2ase_core
IPR018166 S-AdoMet_deCO2ase_CS
PANTHERiPTHR11570 PTHR11570, 1 hit
PfamiView protein in Pfam
PF01536 SAM_decarbox, 1 hit
PIRSFiPIRSF001355 S-AdenosylMet_decarboxylase, 1 hit
SUPFAMiSSF56276 SSF56276, 1 hit
TIGRFAMsiTIGR00535 SAM_DCase, 1 hit
PROSITEiView protein in PROSITE
PS01336 ADOMETDC, 1 hit

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P21182-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTVTIKELTN HNYIDHELSA TLDSTDAFEG PEKLLEIWFF PHKKSITTEK
60 70 80 90 100
TLRNIGMDRW IEILKLVKCE VLSMKKTKEL DAFLLSESSL FVFDHKLTMK
110 120 130 140 150
TCGTTTTLFC LEKLFQIVEQ ELSWAFRTTQ GGKYKPFKVF YSRRCFLFPC
160 170 180 190 200
KQAAIHQNWA DEVDYLNKFF DNGKSYSVGR NDKSNHWNLY VTETDRSTPK
210 220 230 240 250
GKEYIEDDDE TFEVLMTELD PECASKFVCG PEASTTALVE PNEDKGHNLG
260 270 280 290 300
YQMTKNTRLD EIYVNSAQDS DLSFHHDAFA FTPCGYSSNM ILAEKYYYTL
310 320 330 340 350
HVTPEKGWSY ASFESNIPVF DISQGKQDNL DVLLHILNVF QPREFSMTFF
360 370 380 390
TKNYQNQSFQ KLLSINESLP DYIKLDKIVY DLDDYHLFYM KLQKKI
Length:396
Mass (Da):46,232
Last modified:May 1, 1991 - v1
Checksum:i8B63676CB5636D71
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M38434 Genomic DNA Translation: AAA34421.1
X91067 Genomic DNA Translation: CAA62536.1
Z74794 Genomic DNA Translation: CAA99058.1
BK006948 Genomic DNA Translation: DAA10732.1
PIRiS12772 DCBYDM
RefSeqiNP_014590.1, NM_001183306.1

Genome annotation databases

EnsemblFungiiYOL052C; YOL052C; YOL052C
GeneIDi854105
KEGGisce:YOL052C

Similar proteinsi

Entry informationi

Entry nameiDCAM_YEAST
AccessioniPrimary (citable) accession number: P21182
Secondary accession number(s): D6W216
Entry historyiIntegrated into UniProtKB/Swiss-Prot: May 1, 1991
Last sequence update: May 1, 1991
Last modified: March 28, 2018
This is version 155 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programFungal Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Direct protein sequencing, Reference proteome
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health