UniProtKB - Q9S7T9 (DCAM2_ARATH)
Protein
S-adenosylmethionine decarboxylase proenzyme 2
Gene
SAMDC2
Organism
Arabidopsis thaliana (Mouse-ear cress)
Status
Functioni
Essential for biosynthesis of the polyamines spermidine and spermine. Essential for polyamine homeostasis, and normal plant embryogenesis, growth and development.By similarity
Catalytic activityi
- EC:4.1.1.50By similarity
Cofactori
pyruvateBy similarityNote: Binds 1 pyruvoyl group covalently per subunit.By similarity
: S-adenosylmethioninamine biosynthesis Pathwayi
This protein is involved in step 1 of the subpathway that synthesizes S-adenosylmethioninamine from S-adenosyl-L-methionine.CuratedProteins known to be involved in this subpathway in this organism are:
- S-adenosylmethionine decarboxylase proenzyme 4 (SAMDC4), Uncharacterized protein (At3g17717), (thale cress) hypothetical protein (AT9943_LOCUS11324), S-adenosylmethionine decarboxylase proenzyme (AXX17_At5g18760), S-adenosylmethionine decarboxylase proenzyme (AN1_LOCUS14019), S-adenosylmethionine decarboxylase proenzyme (At3g17717), S-adenosylmethionine decarboxylase proenzyme (AT9943_LOCUS12031), S-adenosylmethionine decarboxylase proenzyme (AXX17_At3g27520), S-adenosylmethionine decarboxylase proenzyme 3 (SAMDC3), S-adenosylmethionine decarboxylase proenzyme (AXX17_At5g15520), S-adenosylmethionine decarboxylase proenzyme 2 (SAMDC2), Uncharacterized protein (AN1_LOCUS13172), S-adenosylmethionine decarboxylase proenzyme 1 (SAMDC1), S-adenosylmethionine decarboxylase proenzyme (AT9943_LOCUS19261), Uncharacterized protein, S-adenosylmethionine decarboxylase proenzyme (AXX17_At3g01690), S-adenosylmethionine decarboxylase proenzyme, S-adenosylmethionine decarboxylase proenzyme (C24_LOCUS22263)
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 key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Active sitei | 9 | By similarity | 1 | |
Active sitei | 12 | By similarity | 1 | |
Binding sitei | 68 | SubstrateBy similarity | 1 | |
Active sitei | 69 | Schiff-base intermediate with substrate; via pyruvic acidBy similarity | 1 | |
Active sitei | 83 | Proton donor; for catalytic activityBy similarity | 1 | |
Active sitei | 232 | Proton acceptor; for processing activityBy similarity | 1 | |
Active sitei | 245 | Proton acceptor; for processing activityBy similarity | 1 | |
Binding sitei | 249 | SubstrateBy similarity | 1 |
GO - Molecular functioni
- adenosylmethionine decarboxylase activity Source: GO_Central
GO - Biological processi
- S-adenosylmethioninamine biosynthetic process Source: UniProtKB-UniPathway
- spermidine biosynthetic process Source: GO_Central
- spermine biosynthetic process Source: GO_Central
Keywordsi
Molecular function | Decarboxylase, Lyase |
Biological process | Polyamine biosynthesis, Spermidine biosynthesis |
Ligand | Pyruvate, S-adenosyl-L-methionine, Schiff base |
Enzyme and pathway databases
BioCyci | ARA:AT5G15950-MONOMER |
UniPathwayi | UPA00331;UER00451 |
Names & Taxonomyi
Protein namesi | Recommended name: S-adenosylmethionine decarboxylase proenzyme 2Curated (EC:4.1.1.50By similarity)Short name: AdoMetDC21 Publication Cleaved into the following 2 chains: S-adenosylmethionine decarboxylase 2 alpha chainBy similarity S-adenosylmethionine decarboxylase 2 beta chainBy similarity |
Gene namesi | Name:SAMDC21 Publication Ordered Locus Names:At5g15950 ORF Names:F1N13.90 |
Organismi | Arabidopsis thaliana (Mouse-ear cress) |
Taxonomic identifieri | 3702 [NCBI] |
Taxonomic lineagei | Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliopsida › eudicotyledons › Gunneridae › Pentapetalae › rosids › malvids › Brassicales › Brassicaceae › Camelineae › Arabidopsis |
Proteomesi |
|
Organism-specific databases
Araporti | AT5G15950 |
TAIRi | locus:2146132, AT5G15950 |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000029989 | 1 – 68 | S-adenosylmethionine decarboxylase 2 beta chainBy similarityAdd BLAST | 68 | |
ChainiPRO_0000029990 | 69 – 362 | S-adenosylmethionine decarboxylase 2 alpha chainBy similarityAdd BLAST | 294 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Modified residuei | 69 | Pyruvic acid (Ser); by autocatalysisBy similarity | 1 |
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 key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sitei | 68 – 69 | Cleavage (non-hydrolytic); by autolysisBy similarity | 2 |
Keywords - PTMi
Autocatalytic cleavage, ZymogenProteomic databases
PaxDbi | Q9S7T9 |
PRIDEi | Q9S7T9 |
ProteomicsDBi | 222744 |
Expressioni
Inductioni
By auxin (PubMed:20386573) and infection by Plasmodiophora brassicae (PubMed:18305204).2 Publications
Gene expression databases
ExpressionAtlasi | Q9S7T9, baseline and differential |
Genevisiblei | Q9S7T9, AT |
Interactioni
Protein-protein interaction databases
BioGRIDi | 16728, 1 interactor |
STRINGi | 3702.AT5G15950.2 |
Family & Domainsi
Sequence similaritiesi
Belongs to the eukaryotic AdoMetDC family.Curated
Phylogenomic databases
eggNOGi | KOG0788, Eukaryota |
HOGENOMi | CLU_023050_2_1_1 |
InParanoidi | Q9S7T9 |
OMAi | GYSHAEW |
OrthoDBi | 932490at2759 |
PhylomeDBi | Q9S7T9 |
Family and domain databases
InterProi | View protein in InterPro IPR001985, S-AdoMet_decarboxylase IPR016067, S-AdoMet_deCO2ase_core IPR018166, S-AdoMet_deCO2ase_CS |
PANTHERi | PTHR11570, PTHR11570, 1 hit |
Pfami | View protein in Pfam PF01536, SAM_decarbox, 1 hit |
PIRSFi | PIRSF001355, S-AdenosylMet_decarboxylase, 1 hit |
SUPFAMi | SSF56276, SSF56276, 1 hit |
TIGRFAMsi | TIGR00535, SAM_DCase, 1 hit |
PROSITEi | View protein in PROSITE PS01336, ADOMETDC, 1 hit |
i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
Q9S7T9-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MAMSAIGFEG YEKRLEVTFF EPGLFLDTQG KGLRALAKSQ IDEILQPAEC
60 70 80 90 100
TIVSSLSNDQ LDSYVLSESS LFIFPYKIVI KTCGTTKLLL SIEPLLRLAG
110 120 130 140 150
ELSLDVKAVR YTRGSFLCPG GQPFPHRNFS EEVSVLDGHF AKLGLSSVAY
160 170 180 190 200
LMGNDDETKK WHVYSASSAN SNNKNNVYTL EMCMTGLDKD KASVFYKNES
210 220 230 240 250
SSAGSMTDNS GIRKILPQSQ ICDFEFEPCG YSMNSIEGDA ISTIHVTPED
260 270 280 290 300
GFSYASFEAV GYDFTTMDLS HLVSKVLTCF KPKQFSVAVH STVAQKSYDS
310 320 330 340 350
GLSVDLDDYG CKESTMESLG EERGTVMYQR FEKLGRYCGS PRSTLKCEWS
360
SNSSCNSEDE KE
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AJ252212 Genomic DNA Translation: CAB64672.1 AJ251915 mRNA Translation: CAB63805.1 AL391145 Genomic DNA Translation: CAC01794.1 CP002688 Genomic DNA Translation: AED92227.1 CP002688 Genomic DNA Translation: AED92228.1 AF436825 mRNA Translation: AAL32007.1 AY066030 mRNA Translation: AAL47397.1 |
PIRi | T51378 |
RefSeqi | NP_001031888.1, NM_001036811.1 NP_197099.1, NM_121600.3 |
Genome annotation databases
EnsemblPlantsi | AT5G15950.1; AT5G15950.1; AT5G15950 AT5G15950.2; AT5G15950.2; AT5G15950 |
GeneIDi | 831452 |
Gramenei | AT5G15950.1; AT5G15950.1; AT5G15950 AT5G15950.2; AT5G15950.2; AT5G15950 |
KEGGi | ath:AT5G15950 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AJ252212 Genomic DNA Translation: CAB64672.1 AJ251915 mRNA Translation: CAB63805.1 AL391145 Genomic DNA Translation: CAC01794.1 CP002688 Genomic DNA Translation: AED92227.1 CP002688 Genomic DNA Translation: AED92228.1 AF436825 mRNA Translation: AAL32007.1 AY066030 mRNA Translation: AAL47397.1 |
PIRi | T51378 |
RefSeqi | NP_001031888.1, NM_001036811.1 NP_197099.1, NM_121600.3 |
3D structure databases
SMRi | Q9S7T9 |
ModBasei | Search... |
Protein-protein interaction databases
BioGRIDi | 16728, 1 interactor |
STRINGi | 3702.AT5G15950.2 |
Proteomic databases
PaxDbi | Q9S7T9 |
PRIDEi | Q9S7T9 |
ProteomicsDBi | 222744 |
Genome annotation databases
EnsemblPlantsi | AT5G15950.1; AT5G15950.1; AT5G15950 AT5G15950.2; AT5G15950.2; AT5G15950 |
GeneIDi | 831452 |
Gramenei | AT5G15950.1; AT5G15950.1; AT5G15950 AT5G15950.2; AT5G15950.2; AT5G15950 |
KEGGi | ath:AT5G15950 |
Organism-specific databases
Araporti | AT5G15950 |
TAIRi | locus:2146132, AT5G15950 |
Phylogenomic databases
eggNOGi | KOG0788, Eukaryota |
HOGENOMi | CLU_023050_2_1_1 |
InParanoidi | Q9S7T9 |
OMAi | GYSHAEW |
OrthoDBi | 932490at2759 |
PhylomeDBi | Q9S7T9 |
Enzyme and pathway databases
UniPathwayi | UPA00331;UER00451 |
BioCyci | ARA:AT5G15950-MONOMER |
Miscellaneous databases
PROi | PR:Q9S7T9 |
Gene expression databases
ExpressionAtlasi | Q9S7T9, baseline and differential |
Genevisiblei | Q9S7T9, AT |
Family and domain databases
InterProi | View protein in InterPro IPR001985, S-AdoMet_decarboxylase IPR016067, S-AdoMet_deCO2ase_core IPR018166, S-AdoMet_deCO2ase_CS |
PANTHERi | PTHR11570, PTHR11570, 1 hit |
Pfami | View protein in Pfam PF01536, SAM_decarbox, 1 hit |
PIRSFi | PIRSF001355, S-AdenosylMet_decarboxylase, 1 hit |
SUPFAMi | SSF56276, SSF56276, 1 hit |
TIGRFAMsi | TIGR00535, SAM_DCase, 1 hit |
PROSITEi | View protein in PROSITE PS01336, ADOMETDC, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | DCAM2_ARATH | |
Accessioni | Q9S7T9Primary (citable) accession number: Q9S7T9 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | August 14, 2001 |
Last sequence update: | May 1, 2000 | |
Last modified: | February 10, 2021 | |
This is version 146 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Plant Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- Arabidopsis thaliana
Arabidopsis thaliana: entries and gene names - PATHWAY comments
Index of metabolic and biosynthesis pathways - SIMILARITY comments
Index of protein domains and families