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Q7VD37

- CHLN_PROMA

UniProt

Q7VD37 - CHLN_PROMA

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Protein

Light-independent protochlorophyllide reductase subunit N

Gene
chlN, Pro_0546
Organism
Prochlorococcus marinus (strain SARG / CCMP1375 / SS120)
Status
Reviewed - Annotation score: 3 out of 5 - Experimental evidence at protein leveli

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 NB-protein (ChlN-ChlB) is the catalytic component of the complex By similarity.UniRule annotation

Catalytic activityi

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

Cofactori

Binds 1 [4Fe-4S] cluster per heterodimer. The cluster is bound at the heterodimer interface by residues from both subunits By similarity.

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi17 – 171Iron-sulfur (4Fe-4S); shared with heterodimeric partner By similarity
Metal bindingi42 – 421Iron-sulfur (4Fe-4S); shared with heterodimeric partner By similarity
Metal bindingi103 – 1031Iron-sulfur (4Fe-4S); shared with heterodimeric partner By similarity

GO - Molecular functioni

  1. 4 iron, 4 sulfur cluster binding Source: UniProtKB-HAMAP
  2. ATP binding Source: UniProtKB-HAMAP
  3. metal ion binding Source: UniProtKB-KW
  4. oxidoreductase activity, acting on iron-sulfur proteins as donors Source: InterPro
  5. oxidoreductase activity, acting on the CH-CH group of donors, iron-sulfur protein as acceptor Source: UniProtKB-HAMAP

GO - Biological processi

  1. light-independent chlorophyll biosynthetic process Source: UniProtKB-UniPathway
  2. photosynthesis, dark reaction Source: InterPro
Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Chlorophyll biosynthesis, Photosynthesis

Keywords - Ligandi

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

Enzyme and pathway databases

BioCyciPMAR167539:GJN2-564-MONOMER.
UniPathwayiUPA00670.

Names & Taxonomyi

Protein namesi
Recommended name:
Light-independent protochlorophyllide reductase subunit N (EC:1.3.7.7)
Short name:
DPOR subunit N
Short name:
LI-POR subunit N
Gene namesi
Name:chlN
Ordered Locus Names:Pro_0546
OrganismiProchlorococcus marinus (strain SARG / CCMP1375 / SS120)
Taxonomic identifieri167539 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaProchloralesProchlorococcaceaeProchlorococcus
ProteomesiUP000001420: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 418418Light-independent protochlorophyllide reductase subunit NUniRule annotationPRO_0000324008Add
BLAST

Interactioni

Subunit structurei

Protochlorophyllide reductase is composed of three subunits; ChlL, ChlN and ChlB. Forms a heterotetramer of two ChlB and two ChlN subunits By similarity.

Protein-protein interaction databases

STRINGi167539.Pro0546.

Structurei

Secondary structure

1
418
Legend: HelixTurnBeta strand
Show more details
Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Beta strandi4 – 96
Helixi18 – 214
Helixi22 – 287
Beta strandi32 – 387
Helixi40 – 5011
Beta strandi60 – 645
Helixi67 – 704
Helixi76 – 9015
Beta strandi95 – 1017
Helixi103 – 1075
Helixi112 – 12312
Beta strandi124 – 1263
Beta strandi128 – 1336
Turni136 – 1383
Helixi143 – 15210
Helixi153 – 1553
Beta strandi163 – 1686
Helixi172 – 18413
Beta strandi190 – 1945
Beta strandi208 – 2147
Helixi218 – 2269
Helixi239 – 25315
Helixi258 – 28326
Beta strandi287 – 2904
Beta strandi292 – 2954
Helixi297 – 30610
Beta strandi311 – 3188
Turni322 – 3243
Helixi326 – 3316
Beta strandi337 – 3415
Helixi344 – 35411
Beta strandi357 – 3615
Turni363 – 3653
Helixi366 – 3716
Beta strandi376 – 3783
Helixi379 – 3846
Helixi390 – 3923
Helixi393 – 41018

3D structure databases

Select the link destinations:
PDBe
RCSB PDB
PDBj
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
2YNMX-ray2.10C1-418[»]
ProteinModelPortaliQ7VD37.

Family & Domainsi

Sequence similaritiesi

Belongs to the BchN/ChlN family.

Phylogenomic databases

eggNOGiCOG2710.
KOiK04038.
OMAiGMAHANP.
OrthoDBiEOG6PZX7T.

Family and domain databases

HAMAPiMF_00352. ChlN_BchN.
InterProiIPR000510. Nase/OxRdtase_comp1.
IPR005970. Protochl_reductN.
[Graphical view]
PfamiPF00148. Oxidored_nitro. 1 hit.
[Graphical view]
PIRSFiPIRSF000162. P_chlorophyll_rd. 1 hit.
TIGRFAMsiTIGR01279. DPOR_bchN. 1 hit.

Sequencei

Sequence statusi: Complete.

Q7VD37-1 [UniParc]FASTAAdd to Basket

« Hide

MSGSTLLKET GPREVFCGLT SIVWLHRRMP DAFFLVVGSR TCAHLIQSAA    50
GVMIFAEPRF GTAILEERDL AGLADAHEEL DRVVKSLLKR RPEIRTLFLV 100
GSCPSEVIKI DLSRAAERLS SQFNGQVRIL NYSGSGIETT FTQGEDGALK 150
ALVPLMPSSQ EEQLLLAGTL ANPVEDRLKT IFNRLGIQKV ESFPPRESTK 200
LPAIGPGTKV LLAQPYLTDT ARELKDRGAE ILQAPFPLGV EGSQLWIEAA 250
ANAFKIKKTL VDATLEPLIT RAHKALKPYV EQLSGKKLFL LPESQLEIPL 300
ARFLSNECGM KLIEVGVPYL NREMMGPELD LLPQNTRIVE GQHVEKQLDR 350
VREHHPDLVV CGMGLANPLE AEGISTKWSI EMVFSPIHGI DQASDLAELF 400
ARPLHRQNLL NKKTLEAV 418
Length:418
Mass (Da):46,199
Last modified:October 1, 2003 - v1
Checksum:i02458DD9AD581EE5
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AE017126 Genomic DNA. Translation: AAP99591.1.
RefSeqiNP_874939.1. NC_005042.1.

Genome annotation databases

EnsemblBacteriaiAAP99591; AAP99591; Pro_0546.
GeneIDi1461928.
KEGGipma:Pro_0546.
PATRICi23027725. VBIProMar8617_0561.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AE017126 Genomic DNA. Translation: AAP99591.1 .
RefSeqi NP_874939.1. NC_005042.1.

3D structure databases

Select the link destinations:
PDBe
RCSB PDB
PDBj
Links Updated
Entry Method Resolution (Å) Chain Positions PDBsum
2YNM X-ray 2.10 C 1-418 [» ]
ProteinModelPortali Q7VD37.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 167539.Pro0546.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai AAP99591 ; AAP99591 ; Pro_0546 .
GeneIDi 1461928.
KEGGi pma:Pro_0546.
PATRICi 23027725. VBIProMar8617_0561.

Phylogenomic databases

eggNOGi COG2710.
KOi K04038.
OMAi GMAHANP.
OrthoDBi EOG6PZX7T.

Enzyme and pathway databases

UniPathwayi UPA00670 .
BioCyci PMAR167539:GJN2-564-MONOMER.

Family and domain databases

HAMAPi MF_00352. ChlN_BchN.
InterProi IPR000510. Nase/OxRdtase_comp1.
IPR005970. Protochl_reductN.
[Graphical view ]
Pfami PF00148. Oxidored_nitro. 1 hit.
[Graphical view ]
PIRSFi PIRSF000162. P_chlorophyll_rd. 1 hit.
TIGRFAMsi TIGR01279. DPOR_bchN. 1 hit.
ProtoNeti Search...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: SARG / CCMP1375 / SS120.

Entry informationi

Entry nameiCHLN_PROMA
AccessioniPrimary (citable) accession number: Q7VD37
Entry historyi
Integrated into UniProtKB/Swiss-Prot: March 18, 2008
Last sequence update: October 1, 2003
Last modified: May 14, 2014
This is version 60 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

3D-structure, Complete proteome, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  3. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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