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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: -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)DescriptionActionsGraphical viewLength
Metal bindingi43MagnesiumUniRule annotation1
Binding sitei68ATPUniRule annotation1
Metal bindingi124Iron-sulfur (4Fe-4S); shared with dimeric partnerUniRule annotation1
Metal bindingi158Iron-sulfur (4Fe-4S); shared with dimeric partnerUniRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi39 – 44ATPUniRule annotation6
Nucleotide bindingi209 – 210ATPUniRule annotation2

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionOxidoreductase
Biological processChlorophyll biosynthesis, Photosynthesis
Ligand4Fe-4S, ATP-binding, Iron, Iron-sulfur, Magnesium, Metal-binding, Nucleotide-binding

Enzyme and pathway databases

BioCyciPMAR74546:G1G51-562-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 lineageiBacteriaCyanobacteriaSynechococcalesProchloraceaeProchlorococcus
Proteomesi
  • UP000002715 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00003240621 – 295Light-independent protochlorophyllide reductase iron-sulfur ATP-binding proteinAdd BLAST295

Interactioni

Subunit structurei

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

Protein-protein interaction databases

STRINGi74546.PMT9312_0543

Structurei

3D structure databases

SMRiQ31BZ1
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

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

Phylogenomic databases

eggNOGiENOG4105DSM Bacteria
COG1348 LUCA
HOGENOMiHOG000228825
KOiK04037
OMAiPGDIVCG
OrthoDBiPOG091H0230

Family and domain databases

CDDicd02032 Bchl_like, 1 hit
HAMAPiMF_00355 ChlL_BchL, 1 hit
InterProiView protein in InterPro
IPR030655 NifH/chlL_CS
IPR000392 NifH/frxC
IPR027417 P-loop_NTPase
IPR005971 Protochlorophyllide_ATP-bd
PANTHERiPTHR42864 PTHR42864, 1 hit
PTHR42864:SF1 PTHR42864:SF1, 1 hit
PfamiView protein in Pfam
PF00142 Fer4_NifH, 1 hit
PIRSFiPIRSF000363 Nitrogenase_iron, 1 hit
SUPFAMiSSF52540 SSF52540, 1 hit
TIGRFAMsiTIGR01281 DPOR_bchL, 1 hit
PROSITEiView protein in PROSITE
PS00746 NIFH_FRXC_1, 1 hit
PS00692 NIFH_FRXC_2, 1 hit
PS51026 NIFH_FRXC_3, 1 hit

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

Similar proteinsi

Entry informationi

Entry nameiCHLL_PROM9
AccessioniPrimary (citable) accession number: Q31BZ1
Entry historyiIntegrated into UniProtKB/Swiss-Prot: March 18, 2008
Last sequence update: December 6, 2005
Last modified: March 28, 2018
This is version 83 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

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