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ARNA_PHOLL
ID   ARNA_PHOLL              Reviewed;         660 AA.
AC   Q7N3Q7;
DT   06-DEC-2005, integrated into UniProtKB/Swiss-Prot.
DT   15-DEC-2003, sequence version 1.
DT   03-AUG-2022, entry version 133.
DE   RecName: Full=Bifunctional polymyxin resistance protein ArnA {ECO:0000255|HAMAP-Rule:MF_01166};
DE   Includes:
DE     RecName: Full=UDP-4-amino-4-deoxy-L-arabinose formyltransferase {ECO:0000255|HAMAP-Rule:MF_01166};
DE              EC=2.1.2.13 {ECO:0000255|HAMAP-Rule:MF_01166};
DE     AltName: Full=ArnAFT {ECO:0000255|HAMAP-Rule:MF_01166};
DE     AltName: Full=UDP-L-Ara4N formyltransferase {ECO:0000255|HAMAP-Rule:MF_01166};
DE   Includes:
DE     RecName: Full=UDP-glucuronic acid oxidase, UDP-4-keto-hexauronic acid decarboxylating {ECO:0000255|HAMAP-Rule:MF_01166};
DE              EC=1.1.1.305 {ECO:0000255|HAMAP-Rule:MF_01166};
DE     AltName: Full=ArnADH {ECO:0000255|HAMAP-Rule:MF_01166};
DE     AltName: Full=UDP-GlcUA decarboxylase {ECO:0000255|HAMAP-Rule:MF_01166};
DE     AltName: Full=UDP-glucuronic acid dehydrogenase {ECO:0000255|HAMAP-Rule:MF_01166};
GN   Name=arnA {ECO:0000255|HAMAP-Rule:MF_01166}; OrderedLocusNames=plu2658;
OS   Photorhabdus laumondii subsp. laumondii (strain DSM 15139 / CIP 105565 /
OS   TT01).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Morganellaceae; Photorhabdus.
OX   NCBI_TaxID=243265;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 15139 / CIP 105565 / TT01;
RX   PubMed=14528314; DOI=10.1038/nbt886;
RA   Duchaud E., Rusniok C., Frangeul L., Buchrieser C., Givaudan A.,
RA   Taourit S., Bocs S., Boursaux-Eude C., Chandler M., Charles J.-F.,
RA   Dassa E., Derose R., Derzelle S., Freyssinet G., Gaudriault S., Medigue C.,
RA   Lanois A., Powell K., Siguier P., Vincent R., Wingate V., Zouine M.,
RA   Glaser P., Boemare N., Danchin A., Kunst F.;
RT   "The genome sequence of the entomopathogenic bacterium Photorhabdus
RT   luminescens.";
RL   Nat. Biotechnol. 21:1307-1313(2003).
CC   -!- FUNCTION: Bifunctional enzyme that catalyzes the oxidative
CC       decarboxylation of UDP-glucuronic acid (UDP-GlcUA) to UDP-4-keto-
CC       arabinose (UDP-Ara4O) and the addition of a formyl group to UDP-4-
CC       amino-4-deoxy-L-arabinose (UDP-L-Ara4N) to form UDP-L-4-formamido-
CC       arabinose (UDP-L-Ara4FN). The modified arabinose is attached to lipid A
CC       and is required for resistance to polymyxin and cationic antimicrobial
CC       peptides. {ECO:0000255|HAMAP-Rule:MF_01166}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=NAD(+) + UDP-alpha-D-glucuronate = CO2 + NADH + UDP-beta-L-
CC         threo-pentopyranos-4-ulose; Xref=Rhea:RHEA:24702, ChEBI:CHEBI:16526,
CC         ChEBI:CHEBI:57540, ChEBI:CHEBI:57945, ChEBI:CHEBI:58052,
CC         ChEBI:CHEBI:58710; EC=1.1.1.305; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01166};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(6S)-10-formyltetrahydrofolate + UDP-4-amino-4-deoxy-beta-L-
CC         arabinose = (6S)-5,6,7,8-tetrahydrofolate + H(+) + UDP-4-deoxy-4-
CC         formamido-beta-L-arabinose; Xref=Rhea:RHEA:24706, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:57453, ChEBI:CHEBI:57454, ChEBI:CHEBI:58708,
CC         ChEBI:CHEBI:58709; EC=2.1.2.13; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01166};
CC   -!- PATHWAY: Nucleotide-sugar biosynthesis; UDP-4-deoxy-4-formamido-beta-L-
CC       arabinose biosynthesis; UDP-4-deoxy-4-formamido-beta-L-arabinose from
CC       UDP-alpha-D-glucuronate: step 1/3. {ECO:0000255|HAMAP-Rule:MF_01166}.
CC   -!- PATHWAY: Nucleotide-sugar biosynthesis; UDP-4-deoxy-4-formamido-beta-L-
CC       arabinose biosynthesis; UDP-4-deoxy-4-formamido-beta-L-arabinose from
CC       UDP-alpha-D-glucuronate: step 3/3. {ECO:0000255|HAMAP-Rule:MF_01166}.
CC   -!- PATHWAY: Bacterial outer membrane biogenesis; lipopolysaccharide
CC       biosynthesis. {ECO:0000255|HAMAP-Rule:MF_01166}.
CC   -!- SUBUNIT: Homohexamer, formed by a dimer of trimers. {ECO:0000255|HAMAP-
CC       Rule:MF_01166}.
CC   -!- SIMILARITY: In the N-terminal section; belongs to the Fmt family. UDP-
CC       L-Ara4N formyltransferase subfamily. {ECO:0000255|HAMAP-Rule:MF_01166}.
CC   -!- SIMILARITY: In the C-terminal section; belongs to the NAD(P)-dependent
CC       epimerase/dehydratase family. UDP-glucuronic acid decarboxylase
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_01166}.
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DR   EMBL; BX571867; CAE15032.1; -; Genomic_DNA.
DR   RefSeq; WP_011146880.1; NC_005126.1.
DR   AlphaFoldDB; Q7N3Q7; -.
DR   SMR; Q7N3Q7; -.
DR   STRING; 243265.plu2658; -.
DR   EnsemblBacteria; CAE15032; CAE15032; plu2658.
DR   GeneID; 24166000; -.
DR   KEGG; plu:plu2658; -.
DR   eggNOG; COG0223; Bacteria.
DR   eggNOG; COG0451; Bacteria.
DR   HOGENOM; CLU_007383_23_2_6; -.
DR   OMA; VRYCVKY; -.
DR   OrthoDB; 2009156at2; -.
DR   BioCyc; PLUM243265:PLU_RS13175-MON; -.
DR   UniPathway; UPA00030; -.
DR   UniPathway; UPA00032; UER00492.
DR   UniPathway; UPA00032; UER00494.
DR   Proteomes; UP000002514; Chromosome.
DR   GO; GO:0016831; F:carboxy-lyase activity; IEA:InterPro.
DR   GO; GO:0099619; F:UDP-4-amino-4-deoxy-L-arabinose formyltransferase activity; IEA:UniProtKB-EC.
DR   GO; GO:0099618; F:UDP-glucuronic acid dehydrogenase activity; IEA:UniProtKB-EC.
DR   GO; GO:0009245; P:lipid A biosynthetic process; IEA:UniProtKB-KW.
DR   GO; GO:0009103; P:lipopolysaccharide biosynthetic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0046677; P:response to antibiotic; IEA:UniProtKB-KW.
DR   CDD; cd05257; Arna_like_SDR_e; 1.
DR   HAMAP; MF_01166; ArnA; 1.
DR   InterPro; IPR045869; Arna-like_SDR_e.
DR   InterPro; IPR021168; Bifun_polymyxin_resist_ArnA.
DR   InterPro; IPR001509; Epimerase_deHydtase.
DR   InterPro; IPR005793; Formyl_trans_C.
DR   InterPro; IPR002376; Formyl_transf_N.
DR   InterPro; IPR036477; Formyl_transf_N_sf.
DR   InterPro; IPR011034; Formyl_transferase-like_C_sf.
DR   InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR   Pfam; PF01370; Epimerase; 1.
DR   Pfam; PF02911; Formyl_trans_C; 1.
DR   Pfam; PF00551; Formyl_trans_N; 1.
DR   PIRSF; PIRSF036506; Bifun_polymyxin_resist_ArnA; 1.
DR   SUPFAM; SSF50486; SSF50486; 1.
DR   SUPFAM; SSF51735; SSF51735; 1.
DR   SUPFAM; SSF53328; SSF53328; 1.
PE   3: Inferred from homology;
KW   Antibiotic resistance; Lipid A biosynthesis; Lipid biosynthesis;
KW   Lipid metabolism; Lipopolysaccharide biosynthesis; Multifunctional enzyme;
KW   NAD; Oxidoreductase; Reference proteome; Transferase.
FT   CHAIN           1..660
FT                   /note="Bifunctional polymyxin resistance protein ArnA"
FT                   /id="PRO_0000083101"
FT   REGION          1..304
FT                   /note="Formyltransferase ArnAFT"
FT   REGION          314..660
FT                   /note="Dehydrogenase ArnADH"
FT   ACT_SITE        104
FT                   /note="Proton donor; for formyltransferase activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01166"
FT   ACT_SITE        434
FT                   /note="Proton acceptor; for decarboxylase activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01166"
FT   ACT_SITE        619
FT                   /note="Proton donor; for decarboxylase activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01166"
FT   BINDING         114
FT                   /ligand="(6S)-10-formyltetrahydrofolate"
FT                   /ligand_id="ChEBI:CHEBI:57454"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01166"
FT   BINDING         136..140
FT                   /ligand="(6S)-10-formyltetrahydrofolate"
FT                   /ligand_id="ChEBI:CHEBI:57454"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01166"
FT   BINDING         347
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01166"
FT   BINDING         368..369
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01166"
FT   BINDING         393
FT                   /ligand="UDP-alpha-D-glucuronate"
FT                   /ligand_id="ChEBI:CHEBI:58052"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01166"
FT   BINDING         398
FT                   /ligand="UDP-alpha-D-glucuronate"
FT                   /ligand_id="ChEBI:CHEBI:58052"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01166"
FT   BINDING         432..433
FT                   /ligand="UDP-alpha-D-glucuronate"
FT                   /ligand_id="ChEBI:CHEBI:58052"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01166"
FT   BINDING         460
FT                   /ligand="UDP-alpha-D-glucuronate"
FT                   /ligand_id="ChEBI:CHEBI:58052"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01166"
FT   BINDING         492
FT                   /ligand="UDP-alpha-D-glucuronate"
FT                   /ligand_id="ChEBI:CHEBI:58052"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01166"
FT   BINDING         526..535
FT                   /ligand="UDP-alpha-D-glucuronate"
FT                   /ligand_id="ChEBI:CHEBI:58052"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01166"
FT   BINDING         613
FT                   /ligand="UDP-alpha-D-glucuronate"
FT                   /ligand_id="ChEBI:CHEBI:58052"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01166"
FT   SITE            102
FT                   /note="Transition state stabilizer"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01166"
FT   SITE            140
FT                   /note="Raises pKa of active site His"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01166"
SQ   SEQUENCE   660 AA;  74613 MW;  58D14182DBE14F65 CRC64;
     MKAIVFAYHD IGCVGINALT KAGFDIQAVF THTDDPNENH FFSSVARLSA DLALPVFAPE
     NVNHPLWIER IRELKPDVIF SFYYRDMLSE DILSLASTGA FNLHGSLLPK YRGRAPINWA
     ILNGEVETGV TLHKMVLKPD AGDIIAQYKV AIAETDTALT LHGKIREAAE KLFDQVLPQI
     KAGIYPAIPQ DESQATYFGR RTAVDGEIDW HKSATEINNL VRAVTEPYPG AFTFLGERKI
     TIWRACPLNE THDKQPGTVL SVDPLIIACG KGTLEIINGQ SESGLYVQGH RLAVDMSMVT
     DVRVGPKATT QINHRKRVLI LGVNGFIGNH LTERLLRDGN YDIYGMDIGS SAIERFISNP
     RFHFIEGDIN IHTEWIEYHI KKCDVVLPLV AIATPIEYTR NPLRVFELDF EENLKIVRYC
     VKYNKRIIFP STSEVYGMCD DKEFDEDDSR LIVGPINKQR WIYSVSKQLL DRVIWAYGEK
     EGLKFTLFRP FNWMGPRLDN LNSARIGSSR AITQLILNLV EGSPIKLVDG GEQKRCFTDI
     NDGIEALFRI IENREGLCDG QIINIGNPTN EASIRQLAEI LLDSFEDHEL RDHFPPFAGF
     KKVESGSYYG KGYQDVEHRK PSIKNAERLL DWKPTIDMKQ TINETLDFFL RGAVEELGKN
 
 
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