ID   CLSA_BUCAI              Reviewed;         486 AA.
AC   P57361;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2000, sequence version 1.
DT   25-MAY-2022, entry version 111.
DE   RecName: Full=Cardiolipin synthase A {ECO:0000255|HAMAP-Rule:MF_00190};
DE            Short=CL synthase {ECO:0000255|HAMAP-Rule:MF_00190};
DE            EC=2.7.8.- {ECO:0000255|HAMAP-Rule:MF_00190};
GN   Name=clsA {ECO:0000255|HAMAP-Rule:MF_00190}; Synonyms=cls;
GN   OrderedLocusNames=BU273;
OS   Buchnera aphidicola subsp. Acyrthosiphon pisum (strain APS) (Acyrthosiphon
OS   pisum symbiotic bacterium).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=107806;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=APS;
RX   PubMed=10993077; DOI=10.1038/35024074;
RA   Shigenobu S., Watanabe H., Hattori M., Sakaki Y., Ishikawa H.;
RT   "Genome sequence of the endocellular bacterial symbiont of aphids Buchnera
RT   sp. APS.";
RL   Nature 407:81-86(2000).
CC   -!- FUNCTION: Catalyzes the reversible phosphatidyl group transfer from one
CC       phosphatidylglycerol molecule to another to form cardiolipin (CL)
CC       (diphosphatidylglycerol) and glycerol. {ECO:0000255|HAMAP-
CC       Rule:MF_00190}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2 1,2-diacyl-sn-glycero-3-phospho-(1'-sn-glycerol) = a
CC         cardiolipin + glycerol; Xref=Rhea:RHEA:31451, ChEBI:CHEBI:17754,
CC         ChEBI:CHEBI:62237, ChEBI:CHEBI:64716; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00190};
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00190}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00190}.
CC   -!- SIMILARITY: Belongs to the phospholipase D family. Cardiolipin synthase
CC       subfamily. ClsA sub-subfamily. {ECO:0000255|HAMAP-Rule:MF_00190}.
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DR   EMBL; BA000003; BAB12983.1; -; Genomic_DNA.
DR   RefSeq; NP_240097.1; NC_002528.1.
DR   RefSeq; WP_010896038.1; NC_002528.1.
DR   AlphaFoldDB; P57361; -.
DR   SMR; P57361; -.
DR   STRING; 107806.10038948; -.
DR   EnsemblBacteria; BAB12983; BAB12983; BAB12983.
DR   KEGG; buc:BU273; -.
DR   PATRIC; fig|107806.10.peg.283; -.
DR   eggNOG; COG1502; Bacteria.
DR   HOGENOM; CLU_038053_1_0_6; -.
DR   OMA; TRFILDW; -.
DR   Proteomes; UP000001806; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0008808; F:cardiolipin synthase activity; IEA:InterPro.
DR   GO; GO:0032049; P:cardiolipin biosynthetic process; IEA:InterPro.
DR   HAMAP; MF_00190; Cardiolipin_synth_ClsA; 1.
DR   InterPro; IPR022924; Cardiolipin_synthase.
DR   InterPro; IPR030840; CL_synthase_A.
DR   InterPro; IPR027379; CLS_N.
DR   InterPro; IPR025202; PLD-like_dom.
DR   InterPro; IPR001736; PLipase_D/transphosphatidylase.
DR   Pfam; PF13091; PLDc_2; 2.
DR   Pfam; PF13396; PLDc_N; 1.
DR   SMART; SM00155; PLDc; 2.
DR   TIGRFAMs; TIGR04265; bac_cardiolipin; 1.
DR   PROSITE; PS50035; PLD; 2.
PE   3: Inferred from homology;
KW   Cell inner membrane; Cell membrane; Lipid biosynthesis; Lipid metabolism;
KW   Membrane; Phospholipid biosynthesis; Phospholipid metabolism;
KW   Reference proteome; Repeat; Transferase; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..486
FT                   /note="Cardiolipin synthase A"
FT                   /id="PRO_0000201249"
FT   TRANSMEM        3..23
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00190"
FT   TRANSMEM        38..58
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00190"
FT   DOMAIN          219..246
FT                   /note="PLD phosphodiesterase 1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00190"
FT   DOMAIN          399..426
FT                   /note="PLD phosphodiesterase 2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00190"
FT   ACT_SITE        224
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00190"
FT   ACT_SITE        226
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00190"
FT   ACT_SITE        231
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00190"
FT   ACT_SITE        404
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00190"
FT   ACT_SITE        406
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00190"
FT   ACT_SITE        411
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00190"
SQ   SEQUENCE   486 AA;  56330 MW;  50A59BED7F6ABA56 CRC64;
     MDIFYNLIKC LIFSTYWLLI ANITFRVLIK RRNIPYSMSW LLTIYIIPFI GISIWFFFGE
     LYLGKRQKKI ANRIWSISNK WLHELKSCTY IFQIKNSEVA TSIFQLCKNR QGLHGIKSKK
     IKLLTNTKKI MQILIRDIYL ARKNIEMVFY IWKPGGMADD VAIALIDSAK RGIHCRLMLD
     SAGSIEFFQS PWVEIMRKSG IQVVEALKVN LLRVFLRRVD VRQHRKIILI DNYIAYSGSM
     NLVDPYLFKK SSEIGQWIDL MTRIEGPIAT TMGIIYSCDW EIETGLKILP QLPNKKMLEN
     QSNKNASIQV IASGPGFLKN MIHQALLTAI YSAKRELIIT TPYLVPSEDL LEAICTAAQR
     GVEVSIIIPL YNDSILVKWA SRVFFSELLE AGVKIFQFQK GLLHSKSILV DQQLSLIGTV
     NLDMRSLWLN FEITLVIDDS DFGRNLFCIQ NKYISDSQLI DKKAWSMRAY WKRILEKIFY
     FLSPLL