UniProtKB - Q2FNR0 (DAPA_METHJ)
Protein
4-hydroxy-tetrahydrodipicolinate synthase
Gene
dapA
Organism
Methanospirillum hungatei JF-1 (strain ATCC 27890 / DSM 864 / NBRC 100397 / JF-1)
Status
Functioni
Catalyzes the condensation of (S)-aspartate-beta-semialdehyde [(S)-ASA] and pyruvate to 4-hydroxy-tetrahydrodipicolinate (HTPA).UniRule annotation
Caution
Was originally thought to be a dihydrodipicolinate synthase (DHDPS), catalyzing the condensation of (S)-aspartate-beta-semialdehyde [(S)-ASA] and pyruvate to dihydrodipicolinate (DHDP). However, it was shown in E.coli that the product of the enzymatic reaction is not dihydrodipicolinate but in fact (4S)-4-hydroxy-2,3,4,5-tetrahydro-(2S)-dipicolinic acid (HTPA), and that the consecutive dehydration reaction leading to DHDP is not spontaneous but catalyzed by DapB.Curated
Catalytic activityi
- L-aspartate 4-semialdehyde + pyruvate = (2S,4S)-4-hydroxy-2,3,4,5-tetrahydrodipicolinate + H+ + H2OUniRule annotationEC:4.3.3.7UniRule annotation
: L-lysine biosynthesis via DAP pathway Pathwayi
This protein is involved in step 3 of the subpathway that synthesizes (S)-tetrahydrodipicolinate from L-aspartate.UniRule annotationProteins known to be involved in the 4 steps of the subpathway in this organism are:
- Aspartokinase (Mhun_3054)
- no protein annotated in this organism
- 4-hydroxy-tetrahydrodipicolinate synthase (dapA)
- 4-hydroxy-tetrahydrodipicolinate reductase (dapB)
View all proteins of this organism that are known to be involved in the subpathway that synthesizes (S)-tetrahydrodipicolinate from L-aspartate, the pathway L-lysine biosynthesis via DAP pathway and in Amino-acid biosynthesis.
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sitei | 46 | Part of a proton relay during catalysisUniRule annotation | 1 | |
Binding sitei | 47 | PyruvateUniRule annotation | 1 | |
Sitei | 109 | Part of a proton relay during catalysisUniRule annotation | 1 | |
Active sitei | 134 | Proton donor/acceptorUniRule annotation | 1 | |
Active sitei | 162 | Schiff-base intermediate with substrateUniRule annotation | 1 | |
Binding sitei | 205 | Pyruvate; via carbonyl oxygenUniRule annotation | 1 |
GO - Molecular functioni
- 4-hydroxy-tetrahydrodipicolinate synthase activity Source: UniProtKB-UniRule
GO - Biological processi
- diaminopimelate biosynthetic process Source: UniProtKB-UniRule
- lysine biosynthetic process via diaminopimelate Source: UniProtKB-UniPathway
Keywordsi
Molecular function | Lyase |
Biological process | Amino-acid biosynthesis, Diaminopimelate biosynthesis, Lysine biosynthesis |
Ligand | Schiff base |
Enzyme and pathway databases
BioCyci | MHUN323259:G1G5Z-1582-MONOMER |
UniPathwayi | UPA00034;UER00017 |
Names & Taxonomyi
Protein namesi | Recommended name: 4-hydroxy-tetrahydrodipicolinate synthaseUniRule annotation (EC:4.3.3.7UniRule annotation)Short name: HTPA synthaseUniRule annotation |
Gene namesi | Name:dapAUniRule annotation Ordered Locus Names:Mhun_1492 |
Organismi | Methanospirillum hungatei JF-1 (strain ATCC 27890 / DSM 864 / NBRC 100397 / JF-1) |
Taxonomic identifieri | 323259 [NCBI] |
Taxonomic lineagei | Archaea › Euryarchaeota › Stenosarchaea group › Methanomicrobia › Methanomicrobiales › Methanospirillaceae › Methanospirillum › |
Proteomesi |
|
Subcellular locationi
- Cytoplasm UniRule annotation
GO - Cellular componenti
- cytoplasm Source: UniProtKB-SubCell
Keywords - Cellular componenti
CytoplasmPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_1000050216 | 1 – 291 | 4-hydroxy-tetrahydrodipicolinate synthaseAdd BLAST | 291 |
Interactioni
Subunit structurei
Homotetramer; dimer of dimers.
UniRule annotationProtein-protein interaction databases
STRINGi | 323259.Mhun_1492 |
Family & Domainsi
Sequence similaritiesi
Belongs to the DapA family.UniRule annotation
Phylogenomic databases
eggNOGi | arCOG04172 Archaea COG0329 LUCA |
HOGENOMi | HOG000173604 |
KOi | K01714 |
OMAi | GMDACVP |
OrthoDBi | 65776at2157 |
Family and domain databases
CDDi | cd00950 DHDPS, 1 hit |
Gene3Di | 3.20.20.70, 1 hit |
HAMAPi | MF_00418 DapA, 1 hit |
InterProi | View protein in InterPro IPR013785 Aldolase_TIM IPR005263 DapA IPR002220 DapA-like IPR020625 Schiff_base-form_aldolases_AS IPR020624 Schiff_base-form_aldolases_CS |
PANTHERi | PTHR12128 PTHR12128, 1 hit |
Pfami | View protein in Pfam PF00701 DHDPS, 1 hit |
PIRSFi | PIRSF001365 DHDPS, 1 hit |
PRINTSi | PR00146 DHPICSNTHASE |
SMARTi | View protein in SMART SM01130 DHDPS, 1 hit |
TIGRFAMsi | TIGR00674 dapA, 1 hit |
PROSITEi | View protein in PROSITE PS00665 DHDPS_1, 1 hit PS00666 DHDPS_2, 1 hit |
i Sequence
Sequence statusi: Complete.
Q2FNR0-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MFEGVFPALI TPFQRNHGKN LDLDGLRSNI AHLVAAGVHG VVPCGSTGES
60 70 80 90 100
ATLSFAEHEQ VVEVTMDEAG GKVPVLAGTG SNNTSEALRF TRAAKDVGAD
110 120 130 140 150
GVLVISPYYN KPNRSGLIKH YTAIADLDIP VVVYNVPGRT GQNITPDIIA
160 170 180 190 200
ELAKHPNIVG VKEASGDLGQ ISTIIELTRD EDFAVISGDD NLTLPILSLG
210 220 230 240 250
GKGVISVAAN IYPRPLIEMY EAAQKGDYET AREIHFKYSP LFRAMFYESN
260 270 280 290
PIPVKKAAEI LGMAAGPLRL PLDEASEQTT ERLKEVLSRY D
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | CP000254 Genomic DNA Translation: ABD41226.1 |
RefSeqi | WP_011448495.1, NC_007796.1 |
Genome annotation databases
EnsemblBacteriai | ABD41226; ABD41226; Mhun_1492 |
GeneIDi | 3922723 |
KEGGi | mhu:Mhun_1492 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | CP000254 Genomic DNA Translation: ABD41226.1 |
RefSeqi | WP_011448495.1, NC_007796.1 |
3D structure databases
SMRi | Q2FNR0 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 323259.Mhun_1492 |
Genome annotation databases
EnsemblBacteriai | ABD41226; ABD41226; Mhun_1492 |
GeneIDi | 3922723 |
KEGGi | mhu:Mhun_1492 |
Phylogenomic databases
eggNOGi | arCOG04172 Archaea COG0329 LUCA |
HOGENOMi | HOG000173604 |
KOi | K01714 |
OMAi | GMDACVP |
OrthoDBi | 65776at2157 |
Enzyme and pathway databases
UniPathwayi | UPA00034;UER00017 |
BioCyci | MHUN323259:G1G5Z-1582-MONOMER |
Family and domain databases
CDDi | cd00950 DHDPS, 1 hit |
Gene3Di | 3.20.20.70, 1 hit |
HAMAPi | MF_00418 DapA, 1 hit |
InterProi | View protein in InterPro IPR013785 Aldolase_TIM IPR005263 DapA IPR002220 DapA-like IPR020625 Schiff_base-form_aldolases_AS IPR020624 Schiff_base-form_aldolases_CS |
PANTHERi | PTHR12128 PTHR12128, 1 hit |
Pfami | View protein in Pfam PF00701 DHDPS, 1 hit |
PIRSFi | PIRSF001365 DHDPS, 1 hit |
PRINTSi | PR00146 DHPICSNTHASE |
SMARTi | View protein in SMART SM01130 DHDPS, 1 hit |
TIGRFAMsi | TIGR00674 dapA, 1 hit |
PROSITEi | View protein in PROSITE PS00665 DHDPS_1, 1 hit PS00666 DHDPS_2, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | DAPA_METHJ | |
Accessioni | Q2FNR0Primary (citable) accession number: Q2FNR0 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | January 15, 2008 |
Last sequence update: | March 21, 2006 | |
Last modified: | November 13, 2019 | |
This is version 82 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Complete proteome, Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families - PATHWAY comments
Index of metabolic and biosynthesis pathways