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Protein

Light-independent protochlorophyllide reductase iron-sulfur ATP-binding protein

Gene

chlL

Organism
Prochlorococcus marinus (strain MIT 9312)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Component of the dark-operative protochlorophyllide reductase (DPOR) that uses Mg-ATP and reduced ferredoxin to reduce ring D of protochlorophyllide (Pchlide) to form chlorophyllide a (Chlide). This reaction is light-independent. The L component serves as a unique electron donor to the NB-component of the complex, and binds Mg-ATP.UniRule annotation

Catalytic activityi

Protochlorophyllide a + reduced ferredoxin + 2 ATP + 2 H2O = chlorophyllide a + oxidized ferredoxin + 2 ADP + 2 phosphate.UniRule annotation

Cofactori

[4Fe-4S] clusterUniRule annotationNote: Binds 1 [4Fe-4S] cluster per dimer.UniRule annotation

Pathwayi: chlorophyll biosynthesis (light-independent)

This protein is involved in the pathway chlorophyll biosynthesis (light-independent), which is part of Porphyrin-containing compound metabolism.UniRule annotation
View all proteins of this organism that are known to be involved in the pathway chlorophyll biosynthesis (light-independent) and in Porphyrin-containing compound metabolism.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi43 – 431MagnesiumUniRule annotation
Binding sitei68 – 681ATPUniRule annotation
Metal bindingi124 – 1241Iron-sulfur (4Fe-4S); shared with dimeric partnerUniRule annotation
Metal bindingi158 – 1581Iron-sulfur (4Fe-4S); shared with dimeric partnerUniRule annotation

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi39 – 446ATPUniRule annotation
Nucleotide bindingi209 – 2102ATPUniRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Chlorophyll biosynthesis, Photosynthesis

Keywords - Ligandi

4Fe-4S, ATP-binding, Iron, Iron-sulfur, Magnesium, Metal-binding, Nucleotide-binding

Enzyme and pathway databases

BioCyciPMAR74546:GHRG-562-MONOMER.
UniPathwayiUPA00670.

Names & Taxonomyi

Protein namesi
Recommended name:
Light-independent protochlorophyllide reductase iron-sulfur ATP-binding proteinUniRule annotation (EC:1.3.7.7UniRule annotation)
Short name:
DPOR subunit LUniRule annotation
Short name:
LI-POR subunit LUniRule annotation
Gene namesi
Name:chlLUniRule annotation
Ordered Locus Names:PMT9312_0543
OrganismiProchlorococcus marinus (strain MIT 9312)
Taxonomic identifieri74546 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaProchloralesProchlorococcaceaeProchlorococcus
Proteomesi
  • UP000002715 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 295295Light-independent protochlorophyllide reductase iron-sulfur ATP-binding proteinPRO_0000324062Add
BLAST

Interactioni

Subunit structurei

Homodimer. Protochlorophyllide reductase is composed of three subunits; ChlL, ChlN and ChlB.UniRule annotation

Protein-protein interaction databases

STRINGi74546.PMT9312_0543.

Family & Domainsi

Sequence similaritiesi

Belongs to the NifH/BchL/ChlL family.UniRule annotation

Phylogenomic databases

eggNOGiENOG4105DSM. Bacteria.
COG1348. LUCA.
HOGENOMiHOG000228825.
KOiK04037.
OMAiTSCNISV.
OrthoDBiEOG69SK8Q.

Family and domain databases

Gene3Di3.40.50.300. 1 hit.
HAMAPiMF_00355. ChlL_BchL.
InterProiIPR030655. NifH/chlL_CS.
IPR000392. Nitogenase_NifH/Reductase_ChlL.
IPR027417. P-loop_NTPase.
IPR005971. Protochlorophyllide_ATP-bd.
[Graphical view]
PIRSFiPIRSF000363. Nitrogenase_iron. 1 hit.
PRINTSiPR00091. NITROGNASEII.
SUPFAMiSSF52540. SSF52540. 1 hit.
TIGRFAMsiTIGR01281. DPOR_bchL. 1 hit.
PROSITEiPS00746. NIFH_FRXC_1. 1 hit.
PS00692. NIFH_FRXC_2. 1 hit.
PS51026. NIFH_FRXC_3. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q31BZ1-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTSTINKPLD GEGSVQVKQD PKINIEEGAL VIAVYGKGGI GKSTTSSNLS
60 70 80 90 100
AAFSKLGKKV LQIGCDPKHD STFTLTHKMV PTVIDILEEV DFHSEELRPT
110 120 130 140 150
DFMFEGFNGV MCVESGGPPA GTGCGGYVTG QTVKLLKEHH LLEDTDVVIF
160 170 180 190 200
DVLGDVVCGG FAAPLQHANY CLIVTANDFD SIFAMNRIVS AIKAKAKNYK
210 220 230 240 250
VRLGGVVANR SKDTDQIDKF NERTGLKTMA HFKDVDAIRR SRLKKCTIFE
260 270 280 290
MEPTEDVIEV QNEYLSLAKN MLENVEPLEG NPLKDREIFD LLGFD
Length:295
Mass (Da):32,320
Last modified:December 6, 2005 - v1
Checksum:i52DEE2D619233385
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000111 Genomic DNA. Translation: ABB49604.1.
RefSeqiWP_011376102.1. NC_007577.1.

Genome annotation databases

EnsemblBacteriaiABB49604; ABB49604; PMT9312_0543.
KEGGipmi:PMT9312_0543.
PATRICi23004764. VBIProMar70153_0563.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000111 Genomic DNA. Translation: ABB49604.1.
RefSeqiWP_011376102.1. NC_007577.1.

3D structure databases

ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi74546.PMT9312_0543.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABB49604; ABB49604; PMT9312_0543.
KEGGipmi:PMT9312_0543.
PATRICi23004764. VBIProMar70153_0563.

Phylogenomic databases

eggNOGiENOG4105DSM. Bacteria.
COG1348. LUCA.
HOGENOMiHOG000228825.
KOiK04037.
OMAiTSCNISV.
OrthoDBiEOG69SK8Q.

Enzyme and pathway databases

UniPathwayiUPA00670.
BioCyciPMAR74546:GHRG-562-MONOMER.

Family and domain databases

Gene3Di3.40.50.300. 1 hit.
HAMAPiMF_00355. ChlL_BchL.
InterProiIPR030655. NifH/chlL_CS.
IPR000392. Nitogenase_NifH/Reductase_ChlL.
IPR027417. P-loop_NTPase.
IPR005971. Protochlorophyllide_ATP-bd.
[Graphical view]
PIRSFiPIRSF000363. Nitrogenase_iron. 1 hit.
PRINTSiPR00091. NITROGNASEII.
SUPFAMiSSF52540. SSF52540. 1 hit.
TIGRFAMsiTIGR01281. DPOR_bchL. 1 hit.
PROSITEiPS00746. NIFH_FRXC_1. 1 hit.
PS00692. NIFH_FRXC_2. 1 hit.
PS51026. NIFH_FRXC_3. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. "Complete sequence of Prochlorococcus marinus str. MIT 9312."
    US DOE Joint Genome Institute
    Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T., Hammon N., Israni S., Pitluck S., Thiel J., Schmutz J., Larimer F., Land M., Kyrpides N., Lykidis A., Richardson P.
    Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: MIT 9312.

Entry informationi

Entry nameiCHLL_PROM9
AccessioniPrimary (citable) accession number: Q31BZ1
Entry historyi
Integrated into UniProtKB/Swiss-Prot: March 18, 2008
Last sequence update: December 6, 2005
Last modified: November 11, 2015
This is version 73 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.