UniProtKB - Q73GB0 (PSD_WOLPM)
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Protein
Phosphatidylserine decarboxylase proenzyme
Gene
psd
Organism
Wolbachia pipientis wMel
Status
Functioni
Catalyzes the formation of phosphatidylethanolamine (PtdEtn) from phosphatidylserine (PtdSer).UniRule annotation
Catalytic activityi
Phosphatidyl-L-serine = phosphatidylethanolamine + CO2.UniRule annotation
Cofactori
pyruvateUniRule annotationNote: Binds 1 pyruvoyl group covalently per subunit.UniRule annotation
: phosphatidylethanolamine biosynthesis Pathwayi
This protein is involved in step 2 of the subpathway that synthesizes phosphatidylethanolamine from CDP-diacylglycerol.UniRule annotationProteins known to be involved in the 2 steps of the subpathway in this organism are:
- no protein annotated in this organism
- Phosphatidylserine decarboxylase proenzyme (psd)
View all proteins of this organism that are known to be involved in the subpathway that synthesizes phosphatidylethanolamine from CDP-diacylglycerol, the pathway phosphatidylethanolamine biosynthesis and in Phospholipid metabolism.
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Active sitei | 186 | Schiff-base intermediate with substrate; via pyruvic acidUniRule annotation | 1 |
GO - Molecular functioni
- phosphatidylserine decarboxylase activity Source: UniProtKB-EC
GO - Biological processi
- phosphatidylethanolamine biosynthetic process Source: UniProtKB-UniPathway
Keywordsi
Molecular function | Decarboxylase, Lyase |
Biological process | Lipid biosynthesis, Lipid metabolism, Phospholipid biosynthesis, Phospholipid metabolism |
Ligand | Pyruvate |
Enzyme and pathway databases
UniPathwayi | UPA00558; UER00616. |
Names & Taxonomyi
Protein namesi | Recommended name: Phosphatidylserine decarboxylase proenzymeUniRule annotation (EC:4.1.1.65UniRule annotation)Cleaved into the following 2 chains: Phosphatidylserine decarboxylase alpha chainUniRule annotation Phosphatidylserine decarboxylase beta chainUniRule annotation |
Gene namesi | Name:psdUniRule annotation Ordered Locus Names:WD_1049 |
Organismi | Wolbachia pipientis wMel |
Taxonomic identifieri | 163164 [NCBI] |
Taxonomic lineagei | Bacteria › Proteobacteria › Alphaproteobacteria › Rickettsiales › Anaplasmataceae › Wolbachieae › Wolbachia |
Proteomesi |
|
Subcellular locationi
- Cell membrane UniRule annotation; Peripheral membrane protein UniRule annotation
GO - Cellular componenti
- plasma membrane Source: UniProtKB-SubCell
Keywords - Cellular componenti
Cell membrane, MembranePTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000029815 | 1 – 185 | Phosphatidylserine decarboxylase beta chainUniRule annotationAdd BLAST | 185 | |
ChainiPRO_0000029816 | 186 – 230 | Phosphatidylserine decarboxylase alpha chainUniRule annotationAdd BLAST | 45 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Modified residuei | 186 | Pyruvic acid (Ser); by autocatalysisUniRule annotation | 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 prosthetic group on the alpha chain.UniRule annotation
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sitei | 185 – 186 | Cleavage (non-hydrolytic); by autocatalysisUniRule annotation | 2 |
Keywords - PTMi
ZymogenProteomic databases
PRIDEi | Q73GB0. |
Interactioni
Subunit structurei
Heterodimer of a large membrane-associated beta subunit and a small pyruvoyl-containing alpha subunit.UniRule annotation
Protein-protein interaction databases
STRINGi | 163164.WD1049. |
Family & Domainsi
Sequence similaritiesi
Phylogenomic databases
eggNOGi | ENOG41071I4. Bacteria. COG0688. LUCA. |
HOGENOMi | HOG000229359. |
KOi | K01613. |
OMAi | VSIFMSP. |
Family and domain databases
HAMAPi | MF_00664. PS_decarb_PSD_A. 1 hit. |
InterProi | View protein in InterPro IPR003817. PS_Dcarbxylase. IPR033175. PSD-A. |
PANTHERi | PTHR35809. PTHR35809. 1 hit. |
Pfami | View protein in Pfam PF02666. PS_Dcarbxylase. 1 hit. |
TIGRFAMsi | TIGR00164. PS_decarb_rel. 1 hit. |
i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
Q73GB0-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MCFGLPNINR EGYSFIVVSF IVTCIAFSIS WGFGVTCLFP TLLCTYFFRD
60 70 80 90 100
PARAVPNNKN LILSPADGVI SKIEEVNYPL SAENGEEKKF TLVSIFLSVL
110 120 130 140 150
NVHVNRIPIS GTIKEMSYKK GKFVSAMSNR SSNENEKQVI VIEYEKGKEI
160 170 180 190 200
IVEQIAGLIA RRIVCNLGIS QNVKAGERFG IIRFGSRVNI YVPADTEVRV
210 220 230
SEGQTVIGGE TIIANLNKEN VQEKLTFDVI
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AE017196 Genomic DNA. Translation: AAS14706.1. |
RefSeqi | WP_007548750.1. NC_002978.6. |
Genome annotation databases
EnsemblBacteriai | AAS14706; AAS14706; WD_1049. |
GeneIDi | 29555573. |
KEGGi | wol:WD_1049. |
Similar proteinsi
Entry informationi
Entry namei | PSD_WOLPM | |
Accessioni | Q73GB0Primary (citable) accession number: Q73GB0 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | February 1, 2005 |
Last sequence update: | July 5, 2004 | |
Last modified: | December 20, 2017 | |
This is version 81 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |