ID CHLN_CHLAT Reviewed; 478 AA. AC Q19V53; DT 18-MAR-2008, integrated into UniProtKB/Swiss-Prot. DT 20-FEB-2007, sequence version 2. DT 15-DEC-2009, entry version 24. DE RecName: Full=Light-independent protochlorophyllide reductase subunit N; DE Short=LI-POR subunit N; DE Short=DPOR subunit N; DE EC=1.18.-.-; GN Name=chlN; OS Chlorokybus atmophyticus (Soil alga). OG Plastid; Chloroplast. OC Eukaryota; Viridiplantae; Streptophyta; Chlorokybophyceae; OC Chlorokybales; Chlorokybaceae; Chlorokybus. OX NCBI_TaxID=3144; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=SAG 48.80; RX PubMed=17222354; DOI=10.1186/1741-7007-5-2; RA Lemieux C., Otis C., Turmel M.; RT "A clade uniting the green algae Mesostigma viride and Chlorokybus RT atmophyticus represents the deepest branch of the Streptophyta in RT chloroplast genome-based phylogenies."; RL BMC Biol. 5:2-2(2007). CC -!- FUNCTION: Uses Mg-ATP and reduced ferredoxin to reduce ring D of CC protochlorophyllide (Pchlide) to form chlorophyllide a (Chlide) CC (By similarity). This reaction is light-independent. CC -!- PATHWAY: Porphyrin biosynthesis; chlorophyll biosynthesis (light- CC independent). CC -!- SUBUNIT: Protochlorophyllide reductase is thought to be composed CC of three subunits; chlL, chlN and chlB. Could form a CC heterotetramer of two chlB and two chlN subunits (By similarity). CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast. CC -!- SIMILARITY: Belongs to the bchN/chlN family. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; DQ422812; ABD62180.2; -; Genomic_DNA. DR RefSeq; YP_001019172.1; -. DR GeneID; 4783259; -. DR GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell. DR GO; GO:0016730; F:oxidoreductase activity, acting on iron-sul...; IEA:HAMAP. DR GO; GO:0015995; P:chlorophyll biosynthetic process; IEA:UniProtKB-KW. DR GO; GO:0055114; P:oxidation reduction; IEA:UniProtKB-KW. DR GO; GO:0019685; P:photosynthesis, dark reaction; IEA:InterPro. DR HAMAP; MF_00352; -; 1. DR InterPro; IPR005970; Protochl_reductN. DR PIRSF; PIRSF000162; P_chlorophyll_rd; 1. PE 3: Inferred from homology; KW Chlorophyll biosynthesis; Chloroplast; Oxidoreductase; Photosynthesis; KW Plastid. FT CHAIN 1 478 Light-independent protochlorophyllide FT reductase subunit N. FT /FTId=PRO_0000324035. SQ SEQUENCE 478 AA; 53597 MW; 955D56E38373FF11 CRC64; MSAMTSDTLT FECETGNYHT FCPISCVAWL YQKIEDSFFL VIGTKTCGYF LQNALGVMIF AEPRYAMAEL EEGDISAQLN DYQELKRLCT QIKQDRNPSV IVWIGTCTTE IIKMDLEGMA PKIEQEIKIP IVVARANGLD YAFTQGEDTV LAAMVERCPG ETKLSEQSQD KGSSKQNFSS TKGLFSILNF NKKAAADTQP QEAEDYIDHP PLVLFGSLPG PVVSQLTLEL KRQKIKVSGW LPSQRYTDLP AVGKGVYVCG VNPFLSRTAT ILMRRRKCKL IGAPFPIGPD GTRAWVEKIC SVFNVEPIGL AERENKIWEG LEDYLQLVRG KSVFFMGDNL LEVSLARFLT RCGMIVYEIG IPYMDKRYQA AELALLEKTC QEMGVPMPRI VEKPDNYNQI QRIRELQPDL AITGMAHANP LEARGISTKW SVEFTFAQIH GFTNARDILE LVTRPLRRNN SLEGLGWTSL VKEGVLSN //