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Protein

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

Gene

chlL

Organism
Anabaena variabilis (strain ATCC 29413 / PCC 7937)
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 bindingi14MagnesiumUniRule annotation1
Binding sitei39ATPUniRule annotation1
Metal bindingi95Iron-sulfur (4Fe-4S); shared with dimeric partnerUniRule annotation1
Metal bindingi129Iron-sulfur (4Fe-4S); shared with dimeric partnerUniRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi10 – 15ATPUniRule annotation6
Nucleotide bindingi180 – 181ATPUniRule 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

BioCyciAVAR240292:G7WH-5791-MONOMER
UniPathwayi
UPA00670

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:Ava_2332
OrganismiAnabaena variabilis (strain ATCC 29413 / PCC 7937)
Taxonomic identifieri240292 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaNostocalesNostocaceaeTrichormus
Proteomesi
  • UP000002533 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00003240511 – 288Light-independent protochlorophyllide reductase iron-sulfur ATP-binding proteinAdd BLAST288

Interactioni

Subunit structurei

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

Protein-protein interaction databases

STRINGi240292.Ava_2332

Structurei

3D structure databases

ProteinModelPortaliQ3MAN6
SMRiQ3MAN6
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

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

Phylogenomic databases

eggNOGiENOG4105DSM Bacteria
COG1348 LUCA
HOGENOMiHOG000228825
KOiK04037
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.

Q3MAN6-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKLAVYGKGG IGKSTTSCNI SVALAKRGKK VLQIGCDPKH DSTFTLTGFL
60 70 80 90 100
IPTIIDTLQE KDYHYEDVWP EDVIYKGYGG VDCVEAGGPP AGAGCGGYVV
110 120 130 140 150
GETVKLLKEL NAFDEYDVIL FDVLGDVVCG GFAAPLNYAD YCMIVTDNGF
160 170 180 190 200
DALFAANRIA ASVREKARTH PLRLAGLIGN RTSKRDLIEK YVEAVPMPVL
210 220 230 240 250
EVLPLIEDIR VSRVKGKTLF EMAESDPSLN YVCDYYLSIA DQILARPEGV
260 270 280
VPNDAPDREL FSLLSDFYLN PGKPQVPNPE EELDLMIV
Length:288
Mass (Da):31,449
Last modified:March 18, 2008 - v2
Checksum:i0180D9FE38428DA3
GO

Sequence cautioni

The sequence ABA21950 differs from that shown. Reason: Erroneous initiation.Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000117 Genomic DNA Translation: ABA21950.1 Different initiation.

Genome annotation databases

EnsemblBacteriaiABA21950; ABA21950; Ava_2332
KEGGiava:Ava_2332

Similar proteinsi

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000117 Genomic DNA Translation: ABA21950.1 Different initiation.

3D structure databases

ProteinModelPortaliQ3MAN6
SMRiQ3MAN6
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi240292.Ava_2332

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABA21950; ABA21950; Ava_2332
KEGGiava:Ava_2332

Phylogenomic databases

eggNOGiENOG4105DSM Bacteria
COG1348 LUCA
HOGENOMiHOG000228825
KOiK04037
OrthoDBiPOG091H0230

Enzyme and pathway databases

UniPathwayi
UPA00670

BioCyciAVAR240292:G7WH-5791-MONOMER

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
ProtoNetiSearch...

Entry informationi

Entry nameiCHLL_ANAVT
AccessioniPrimary (citable) accession number: Q3MAN6
Entry historyiIntegrated into UniProtKB/Swiss-Prot: March 18, 2008
Last sequence update: March 18, 2008
Last modified: October 10, 2018
This is version 79 of the entry and version 2 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. PATHWAY comments
    Index of metabolic and biosynthesis pathways
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Main funding by: National Institutes of Health

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