ID   PUR9_ACAM1              Reviewed;         524 AA.
AC   B0BZH9;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   26-FEB-2008, sequence version 1.
DT   16-JUN-2009, entry version 10.
DE   RecName: Full=Bifunctional purine biosynthesis protein purH;
DE   Includes:
DE     RecName: Full=Phosphoribosylaminoimidazolecarboxamide formyltransferase;
DE              EC=2.1.2.3;
DE     AltName: Full=AICAR transformylase;
DE   Includes:
DE     RecName: Full=IMP cyclohydrolase;
DE              EC=3.5.4.10;
DE     AltName: Full=Inosinicase;
DE     AltName: Full=IMP synthetase;
DE     AltName: Full=ATIC;
GN   Name=purH; OrderedLocusNames=AM1_5779;
OS   Acaryochloris marina (strain MBIC 11017).
OC   Bacteria; Cyanobacteria; Acaryochloris.
OX   NCBI_TaxID=329726;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=18252824; DOI=10.1073/pnas.0709772105;
RA   Swingley W.D., Chen M., Cheung P.C., Conrad A.L., Dejesa L.C., Hao J.,
RA   Honchak B.M., Karbach L.E., Kurdoglu A., Lahiri S., Mastrian S.D.,
RA   Miyashita H., Page L., Ramakrishna P., Satoh S., Sattley W.M.,
RA   Shimada Y., Taylor H.L., Tomo T., Tsuchiya T., Wang Z.T., Raymond J.,
RA   Mimuro M., Blankenship R.E., Touchman J.W.;
RT   "Niche adaptation and genome expansion in the chlorophyll d-producing
RT   cyanobacterium Acaryochloris marina.";
RL   Proc. Natl. Acad. Sci. U.S.A. 105:2005-2010(2008).
CC   -!- CATALYTIC ACTIVITY: 10-formyltetrahydrofolate + 5-amino-1-(5-
CC       phospho-D-ribosyl)imidazole-4-carboxamide = tetrahydrofolate + 5-
CC       formamido-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide.
CC   -!- CATALYTIC ACTIVITY: IMP + H(2)O = 5-formamido-1-(5-phospho-D-
CC       ribosyl)imidazole-4-carboxamide.
CC   -!- PATHWAY: Purine metabolism; IMP biosynthesis via de novo pathway;
CC       5-formamido-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide from 5-
CC       amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide (10-formyl
CC       THF route): step 1/1.
CC   -!- PATHWAY: Purine metabolism; IMP biosynthesis via de novo pathway;
CC       IMP from 5-formamido-1-(5-phospho-D-ribosyl)imidazole-4-
CC       carboxamide: step 1/1.
CC   -!- DOMAIN: The IMP cyclohydrolase activity resides in the N-terminal
CC       region (By similarity).
CC   -!- SIMILARITY: Belongs to the purH family.
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DR   EMBL; CP000828; ABW30724.1; -; Genomic_DNA.
DR   RefSeq; YP_001520043.1; -.
DR   GeneID; 5684566; -.
DR   GenomeReviews; CP000828_GR; AM1_5779.
DR   KEGG; amr:AM1_5779; -.
DR   OMA; B0BZH9; VVKHVKS.
DR   GO; GO:0003937; F:IMP cyclohydrolase activity; IEA:HAMAP.
DR   GO; GO:0004643; F:phosphoribosylaminoimidazolecarboxamide for...; IEA:HAMAP.
DR   GO; GO:0006188; P:IMP biosynthetic process; IEA:InterPro.
DR   HAMAP; MF_00139; -; 1.
DR   InterPro; IPR002695; AICARFT_IMPCHas.
DR   InterPro; IPR013982; AICARFT_IMPCHas_formly.
DR   InterPro; IPR011607; MGS.
DR   PANTHER; PTHR11692; AICARFT_IMPCHas; 1.
DR   Pfam; PF01808; AICARFT_IMPCHas; 1.
DR   Pfam; PF02142; MGS; 1.
DR   PIRSF; PIRSF000414; AICARFT_IMPCHas; 1.
DR   SMART; SM00798; AICARFT_IMPCHas; 1.
DR   TIGRFAMs; TIGR00355; purH; 1.
PE   3: Inferred from homology;
KW   Complete proteome; Hydrolase; Multifunctional enzyme;
KW   Purine biosynthesis; Transferase.
FT   CHAIN         1    524       Bifunctional purine biosynthesis protein
FT                                purH.
FT                                /FTId=PRO_1000076472.
SQ   SEQUENCE   524 AA;  55848 MW;  E979D0DFD30BA415 CRC64;
     MTRLALLSTS DKTGLVELAQ QLVNEYGFTL VSSGGTAVTI EKAGLPVTKV SDYTGSPEIL
     GGRVKTLHPR IHGGILARRS LESDVQDLTE NNIQGIDLVV VNLYPFEETI AKQKAQGITD
     PDQALADAVE QIDIGGPTMI RAAAKNHAHV TVLCDPQQYA SYLQELKHGE GETSLPFRQA
     CALKVFERMA SYDRAIATHL RQSLATTDSQ TQLSILGTAK QTLRYGENPH QNAVWYQESD
     TASGWAAAQQ LQGKELSYNN LVDLEAARRV IAEFAQAETQ PTVAILKHNN PCGVAQGETL
     LQAYEKALAA DSVSAFGGIV AMNRAIDTDT AQVLTKTFLE CIVAPECQPE AAAVLQAKSN
     LRVLVLPDLV SGPAVTVKAI AGGWLAQAAD ETLTPPADWQ IVTQAKPTEA QLAELLFAWK
     VVKHVKSNAI VVTKDHTTLG VGAGQMNRVG SVNIALQQAG EKAQGGTLAS DGFFPFDDSV
     RTAAAAGITA IIQPGGSIRD KDSIQAADEL GIVMAFTGTR HFLH
//