Q9SFH9 (HEM2_ARATH) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 99.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Delta-aminolevulinic acid dehydratase, chloroplastic Short name=ALADH EC=4.2.1.24 Alternative name(s): Porphobilinogen synthase | ||||||
| Gene names |
| ||||||
| Organism | Arabidopsis thaliana (Mouse-ear cress) [Reference proteome] | ||||||
| Taxonomic identifier | 3702 [NCBI] | ||||||
| Taxonomic lineage | Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliophyta › eudicotyledons › core eudicotyledons › rosids › malvids › Brassicales › Brassicaceae › Camelineae › Arabidopsis![]() |
Protein attributes
| Sequence length | 430 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is further processed into a mature form. |
| Protein existence | Evidence at transcript level |
General annotation (Comments)
| Function | Catalyzes an early step in the biosynthesis of tetrapyrroles. Binds two molecules of 5-aminolevulinate per subunit, each at a distinct site, and catalyzes their condensation to form porphobilinogen By similarity. |
| Catalytic activity | 2 5-aminolevulinate = porphobilinogen + 2 H2O. |
| Cofactor | Binds 2 magnesium ions per monomer. The first magnesium ion is required for catalysis. The second functions as allosteric activator By similarity. |
| Pathway | |
| Subunit structure | Homooctamer By similarity. |
| Subcellular location | Plastid › chloroplast By similarity. |
| Sequence similarities | Belongs to the ALADH family. |
Ontologies
| Keywords | |
|---|---|
| Biological process | Chlorophyll biosynthesis Heme biosynthesis Porphyrin biosynthesis |
| Cellular component | Chloroplast Plastid |
| Domain | Transit peptide |
| Ligand | Magnesium Metal-binding |
| Molecular function | Lyase |
| Technical term | Allosteric enzyme Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Biological_process | chlorophyll biosynthetic process Inferred from electronic annotation. Source: UniProtKB-KW porphyrin-containing compound biosynthetic processTraceable author statement PubMed 8016269. Source: TAIR protoporphyrinogen IX biosynthetic processInferred from electronic annotation. Source: UniProtKB-UniPathway |
| Cellular_component | chloroplast stroma Inferred from direct assay PubMed 16207701PubMed 18633119PubMed 20061580. Source: TAIR |
| Molecular_function | metal ion binding Inferred from electronic annotation. Source: UniProtKB-KW porphobilinogen synthase activityInferred from electronic annotation. Source: EC |
| Complete GO annotation... | |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Transit peptide | 1 – ? | Chloroplast By similarity | |||||||
| Chain | ? – 430 | Delta-aminolevulinic acid dehydratase, chloroplastic | PRO_0000013314 | ||||||
Sites | |||||||||
| Active site | 298 | 1 | Schiff-base intermediate with substrate By similarity | ||||||
| Active site | 351 | 1 | Schiff-base intermediate with substrate By similarity | ||||||
| Metal binding | 336 | 1 | Magnesium By similarity | ||||||
| Binding site | 308 | 1 | Substrate 1 By similarity | ||||||
| Binding site | 320 | 1 | Substrate 1 By similarity | ||||||
| Binding site | 377 | 1 | Substrate 2 By similarity | ||||||
| Binding site | 416 | 1 | Substrate 2 By similarity | ||||||
Sequences
| ||||||||||||||||||
References
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AC013289 Genomic DNA. Translation: AAG52549.1. CP002684 Genomic DNA. Translation: AEE34969.1. CP002684 Genomic DNA. Translation: AEE34970.1. AF327428 mRNA. Translation: AAG42018.1. AF361803 mRNA. Translation: AAK32816.1. AY059154 mRNA. Translation: AAL15379.1. AY081254 mRNA. Translation: AAL91143.1. AY113941 mRNA. Translation: AAM44989.1. AY120705 mRNA. Translation: AAM53263.1. AY128711 mRNA. Translation: AAM91111.1. |
| IPI | IPI00537155. |
| PIR | D96719. |
| RefSeq | NP_001077800.1. NM_001084331.2. NP_177132.1. NM_105642.3. |
| UniGene | At.10020. At.21048. |
3D structure databases | |
| ProteinModelPortal | Q9SFH9. |
| SMR | Q9SFH9. Positions 102-422. |
| ModBase | Search... |
Protein-protein interaction databases | |
| STRING | 3702.AT1G69740.2-P. |
Proteomic databases | |
| PaxDb | Q9SFH9. |
| PRIDE | Q9SFH9. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| EnsemblPlants | AT1G69740.1; AT1G69740.1; AT1G69740. AT1G69740.2; AT1G69740.2; AT1G69740. |
| GeneID | 843310. |
| KEGG | ath:AT1G69740. |
Organism-specific databases | |
| TAIR | At1g69740. |
Phylogenomic databases | |
| eggNOG | COG0113. |
| HOGENOM | HOG000020323. |
| InParanoid | Q9SFH9. |
| KO | K01698. |
| OMA | DVAIMSY. |
| PhylomeDB | Q9SFH9. |
| ProtClustDB | CLSN2679842. |
Enzyme and pathway databases | |
| UniPathway | UPA00251; UER00318. |
Gene expression databases | |
| Genevestigator | Q9SFH9. |
| GermOnline | AT1G69740. Arabidopsis thaliana. |
Family and domain databases | |
| Gene3D | 3.20.20.70. 1 hit. |
| InterPro | IPR013785. Aldolase_TIM. IPR001731. Porphobilinogen_synth. [Graphical view] |
| PANTHER | PTHR11458. PTHR11458. 1 hit. |
| Pfam | PF00490. ALAD. 1 hit. [Graphical view] |
| PRINTS | PR00144. DALDHYDRTASE. |
| SMART | SM01004. ALAD. 1 hit. [Graphical view] |
| PROSITE | PS00169. D_ALA_DEHYDRATASE. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Entry information
| Entry name | HEM2_ARATH | ||||||||
| Accession | Primary (citable) accession number: Q9SFH9 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Plant Protein Annotation Program | ||||||||
Relevant documents
| Arabidopsis thaliana Arabidopsis thaliana: entries and gene names |
| PATHWAY comments Index of metabolic and biosynthesis pathways |
| SIMILARITY comments Index of protein domains and families |

Clusters with
