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Protein

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

Gene

chlL

Organism
Microcystis aeruginosa (strain NIES-843)
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 bindingi16MagnesiumUniRule annotation1
Binding sitei41ATPUniRule annotation1
Metal bindingi97Iron-sulfur (4Fe-4S); shared with dimeric partnerUniRule annotation1
Metal bindingi131Iron-sulfur (4Fe-4S); shared with dimeric partnerUniRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi12 – 17ATPUniRule annotation6
Nucleotide bindingi182 – 183ATPUniRule 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

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:MAE_16230
OrganismiMicrocystis aeruginosa (strain NIES-843)
Taxonomic identifieri449447 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaOscillatoriophycideaeChroococcalesMicrocystaceaeMicrocystis
Proteomesi
  • UP000001510 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_10001205561 – 289Light-independent protochlorophyllide reductase iron-sulfur ATP-binding proteinAdd BLAST289

Proteomic databases

PaxDbiB0JVB1
PRIDEiB0JVB1

Interactioni

Subunit structurei

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

Protein-protein interaction databases

STRINGi449447.MAE_16230

Structurei

3D structure databases

ProteinModelPortaliB0JVB1
SMRiB0JVB1
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.

B0JVB1-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MPLTLAVYGK GGIGKSTTSC NISAALAKRG KKVLQIGCDP KHDSTFTLTG
60 70 80 90 100
FLIPTIIDTL QEKDFHYEDI WPEDVIYDGY GGVKCVEAGG PPAGAGCGGY
110 120 130 140 150
VVGETVKLLK ELNAFDEFDV ILFDVLGDVV CGGFAAPLNY ADYCIIVTDN
160 170 180 190 200
GFDALFAANR IAASVREKAR THPLRLAGLI GNRTSKRDLI NKYVDHVPMP
210 220 230 240 250
VLEVLPLIED IRVSRVKGQT LFEMADKDPM LSYVCDYYLN IADQILAKPE
260 270 280
GVIPKESADR ELFTLLSDFY LNADKPKVNA EEELDLMMV
Length:289
Mass (Da):31,621
Last modified:March 18, 2008 - v1
Checksum:iB3B7494A875793DA
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AP009552 Genomic DNA Translation: BAG01445.1
RefSeqiWP_002759152.1, NC_010296.1

Genome annotation databases

EnsemblBacteriaiBAG01445; BAG01445; MAE_16230
GeneIDi5862423
KEGGimar:MAE_16230

Similar proteinsi

Entry informationi

Entry nameiCHLL_MICAN
AccessioniPrimary (citable) accession number: B0JVB1
Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 14, 2009
Last sequence update: March 18, 2008
Last modified: March 28, 2018
This is version 69 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, Reference proteome
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Main funding by: National Institutes of Health