UniProtKB - P42808 (HEM1_XANCH)
Protein
Glutamyl-tRNA reductase
Gene
hemA
Organism
Xanthomonas campestris pv. phaseoli
Status
Functioni
Catalyzes the NADPH-dependent reduction of glutamyl-tRNA(Glu) to glutamate 1-semialdehyde (GSA).1 Publication
Miscellaneous
During catalysis, the active site Cys acts as a nucleophile attacking the alpha-carbonyl group of tRNA-bound glutamate with the formation of a thioester intermediate between enzyme and glutamate, and the concomitant release of tRNA(Glu). The thioester intermediate is finally reduced by direct hydride transfer from NADPH, to form the product GSA.UniRule annotation
Catalytic activityi
- EC:1.2.1.70UniRule annotation
: protoporphyrin-IX biosynthesis Pathwayi
This protein is involved in step 1 of the subpathway that synthesizes 5-aminolevulinate from L-glutamyl-tRNA(Glu).UniRule annotationProteins known to be involved in the 2 steps of the subpathway in this organism are:
- Glutamyl-tRNA reductase (hemA), Glutamyl-tRNA reductase (hemA), Glutamyl-tRNA reductase (hemA)
- Glutamate-1-semialdehyde 2,1-aminomutase (hemL), Glutamate-1-semialdehyde 2,1-aminomutase (hemL)
View all proteins of this organism that are known to be involved in the subpathway that synthesizes 5-aminolevulinate from L-glutamyl-tRNA(Glu), the pathway protoporphyrin-IX biosynthesis and in Porphyrin-containing compound metabolism.
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Active sitei | 50 | NucleophileUniRule annotation | 1 | |
Sitei | 91 | Important for activityUniRule annotation | 1 | |
Binding sitei | 101 | SubstrateUniRule annotation | 1 | |
Binding sitei | 112 | SubstrateUniRule annotation | 1 |
Regions
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Nucleotide bindingi | 181 – 186 | NADPUniRule annotation | 6 |
GO - Molecular functioni
- glutamyl-tRNA reductase activity Source: UniProtKB-UniRule
- NADP binding Source: InterPro
GO - Biological processi
- protoporphyrinogen IX biosynthetic process Source: UniProtKB-UniPathway
Keywordsi
Molecular function | Oxidoreductase |
Biological process | Porphyrin biosynthesis |
Ligand | NADP |
Enzyme and pathway databases
UniPathwayi | UPA00251;UER00316 |
Names & Taxonomyi
Protein namesi | Recommended name: Glutamyl-tRNA reductaseUniRule annotation (EC:1.2.1.70UniRule annotation)Short name: GluTRUniRule annotation |
Gene namesi | Name:hemAUniRule annotation |
Organismi | Xanthomonas campestris pv. phaseoli |
Taxonomic identifieri | 317013 [NCBI] |
Taxonomic lineagei | Bacteria › Proteobacteria › Gammaproteobacteria › Xanthomonadales › Xanthomonadaceae › Xanthomonas › |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000114090 | 1 – 426 | Glutamyl-tRNA reductaseAdd BLAST | 426 |
Interactioni
Subunit structurei
Homodimer.
UniRule annotationProtein-protein interaction databases
STRINGi | 317013.NY99_14915 |
Family & Domainsi
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 49 – 52 | Substrate bindingUniRule annotation | 4 | |
Regioni | 106 – 108 | Substrate bindingUniRule annotation | 3 |
Domaini
Possesses an unusual extended V-shaped dimeric structure with each monomer consisting of three distinct domains arranged along a curved 'spinal' alpha-helix. The N-terminal catalytic domain specifically recognizes the glutamate moiety of the substrate. The second domain is the NADPH-binding domain, and the third C-terminal domain is responsible for dimerization.UniRule annotation
Sequence similaritiesi
Belongs to the glutamyl-tRNA reductase family.UniRule annotation
Phylogenomic databases
eggNOGi | COG0373, Bacteria |
Family and domain databases
Gene3Di | 3.30.460.30, 1 hit |
HAMAPi | MF_00087, Glu_tRNA_reductase, 1 hit |
InterProi | View protein in InterPro IPR000343, 4pyrrol_synth_GluRdtase IPR015896, 4pyrrol_synth_GluRdtase_dimer IPR015895, 4pyrrol_synth_GluRdtase_N IPR018214, GluRdtase_CS IPR036453, GluRdtase_dimer_dom_sf IPR036343, GluRdtase_N_sf IPR036291, NAD(P)-bd_dom_sf IPR006151, Shikm_DH/Glu-tRNA_Rdtase |
Pfami | View protein in Pfam PF00745, GlutR_dimer, 1 hit PF05201, GlutR_N, 1 hit PF01488, Shikimate_DH, 1 hit |
PIRSFi | PIRSF000445, 4pyrrol_synth_GluRdtase, 1 hit |
SUPFAMi | SSF51735, SSF51735, 1 hit SSF69075, SSF69075, 1 hit SSF69742, SSF69742, 1 hit |
TIGRFAMsi | TIGR01035, hemA, 1 hit |
PROSITEi | View protein in PROSITE PS00747, GLUTR, 1 hit |
i Sequence
Sequence statusi: Complete.
P42808-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MTLWVLGLNH QTAPVDLRER AAFAGDALPR ALESLRALPQ VSEAALLSTC
60 70 80 90 100
NRTELYAMAE EAHSLVTWLE THAPALSGYL YQHQEAEAVR HLFRVATGLD
110 120 130 140 150
SMVLGEPQIL GQVKDAWAVA RAHGTLGSGL DRLFQQTFSV AKRARTDTRV
160 170 180 190 200
GANPVSVAST AVRLAQDSFA RLNESTVLLI GAGETIELAA KHLSEGRVRR
210 220 230 240 250
LLIANRTLAH AQTLASQHGG FALPLTDLER HLAEADVVFS ATAAREPLVT
260 270 280 290 300
RAQVEQALRA RKRKPMLLFD LAVPRDIEAS VGELSDAYLY TVDDLERAVE
310 320 330 340 350
DNRRGRREAA DQAEAIIDLQ VARYVETLQA NARQAPLKRL RAFGDSTRDE
360 370 380 390 400
LLAKARQQLH NGKPADEVLE QLAHALTNRL LHPPTAALRD AALNNDLELT
410 420
TAADRLFPEK PGLPTSPHSY PDREDR
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | D15073 Genomic DNA Translation: BAA03668.1 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | D15073 Genomic DNA Translation: BAA03668.1 |
3D structure databases
SMRi | P42808 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 317013.NY99_14915 |
Phylogenomic databases
eggNOGi | COG0373, Bacteria |
Enzyme and pathway databases
UniPathwayi | UPA00251;UER00316 |
Family and domain databases
Gene3Di | 3.30.460.30, 1 hit |
HAMAPi | MF_00087, Glu_tRNA_reductase, 1 hit |
InterProi | View protein in InterPro IPR000343, 4pyrrol_synth_GluRdtase IPR015896, 4pyrrol_synth_GluRdtase_dimer IPR015895, 4pyrrol_synth_GluRdtase_N IPR018214, GluRdtase_CS IPR036453, GluRdtase_dimer_dom_sf IPR036343, GluRdtase_N_sf IPR036291, NAD(P)-bd_dom_sf IPR006151, Shikm_DH/Glu-tRNA_Rdtase |
Pfami | View protein in Pfam PF00745, GlutR_dimer, 1 hit PF05201, GlutR_N, 1 hit PF01488, Shikimate_DH, 1 hit |
PIRSFi | PIRSF000445, 4pyrrol_synth_GluRdtase, 1 hit |
SUPFAMi | SSF51735, SSF51735, 1 hit SSF69075, SSF69075, 1 hit SSF69742, SSF69742, 1 hit |
TIGRFAMsi | TIGR01035, hemA, 1 hit |
PROSITEi | View protein in PROSITE PS00747, GLUTR, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | HEM1_XANCH | |
Accessioni | P42808Primary (citable) accession number: P42808 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | November 1, 1995 |
Last sequence update: | November 1, 1995 | |
Last modified: | August 12, 2020 | |
This is version 110 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
Documents
- PATHWAY comments
Index of metabolic and biosynthesis pathways - SIMILARITY comments
Index of protein domains and families