A0A8T1X9B3 · A0A8T1X9B3_9BRAS
- ProteinMg-protoporphyrin IX chelatase
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids358 (go to sequence)
- Protein existenceInferred from homology
- Annotation score3/5
Function
function
Involved in chlorophyll biosynthesis. Catalyzes the insertion of magnesium ion into protoporphyrin IX to yield Mg-protoporphyrin IX.
Catalytic activity
- ATP + H2O + Mg2+ + protoporphyrin IX = ADP + 3 H+ + Mg-protoporphyrin IX + phosphate
Activity regulation
Redox regulation; active in reducing conditions, inactive in oxidizing conditions.
Pathway
Porphyrin-containing compound metabolism; chlorophyll biosynthesis.
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | chloroplast | |
Molecular Function | ATP binding | |
Molecular Function | magnesium chelatase activity | |
Biological Process | chlorophyll biosynthetic process | |
Biological Process | photosynthesis |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameMg-protoporphyrin IX chelatase
- EC number
Gene names
Organism names
- Strain
- Taxonomic lineageEukaryota > Viridiplantae > Streptophyta > Embryophyta > Tracheophyta > Spermatophyta > Magnoliopsida > eudicotyledons > Gunneridae > Pentapetalae > rosids > malvids > Brassicales > Brassicaceae > Camelineae > Arabidopsis
Accessions
- Primary accessionA0A8T1X9B3
Proteomes
Subcellular Location
Interaction
Subunit
The magnesium chelatase complex is a heterotrimer consisting of subunits CHLI, CHLD, AND CHLH.
Structure
Family & Domains
Features
Showing features for region, compositional bias, domain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Region | 71-127 | Disordered | ||||
Sequence: RSSLDETPPPEQQNQPPPPPPPPQNSESGEEENEEEQEEEEDESNEENENEQQQDQI | ||||||
Compositional bias | 80-96 | Pro residues | ||||
Sequence: PEQQNQPPPPPPPPQNS | ||||||
Compositional bias | 98-124 | Acidic residues | ||||
Sequence: SGEEENEEEQEEEEDESNEENENEQQQ | ||||||
Domain | 232-358 | VWFA | ||||
Sequence: LVIFVVDASGSMALNRMQNAKGAALKLLAESYTSRDQVSIIPFRGDAAEVLLPPSRSIAMARNRLERLPCGGGSPLAHGLTTAVRVGLNAEKSGDVGRIMIVAITDGRANITLKRSTDPDSIAADAS |
Sequence similarities
Belongs to the Mg-chelatase subunits D/I family.
Family and domain databases
Sequence
- Sequence statusFragment
- Length358
- Mass (Da)39,425
- Last updated2022-10-12 v1
- Checksum7452B2661DEC57BF
Features
Showing features for compositional bias, non-terminal residue.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Compositional bias | 80-96 | Pro residues | ||||
Sequence: PEQQNQPPPPPPPPQNS | ||||||
Compositional bias | 98-124 | Acidic residues | ||||
Sequence: SGEEENEEEQEEEEDESNEENENEQQQ | ||||||
Non-terminal residue | 358 | |||||
Sequence: S |