PUR9_CERS1
ID PUR9_CERS1 Reviewed; 529 AA.
AC A3PNE9;
DT 05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT 03-APR-2007, sequence version 1.
DT 25-MAY-2022, entry version 79.
DE RecName: Full=Bifunctional purine biosynthesis protein PurH {ECO:0000255|HAMAP-Rule:MF_00139};
DE Includes:
DE RecName: Full=Phosphoribosylaminoimidazolecarboxamide formyltransferase {ECO:0000255|HAMAP-Rule:MF_00139};
DE EC=2.1.2.3 {ECO:0000255|HAMAP-Rule:MF_00139};
DE AltName: Full=AICAR transformylase {ECO:0000255|HAMAP-Rule:MF_00139};
DE Includes:
DE RecName: Full=IMP cyclohydrolase {ECO:0000255|HAMAP-Rule:MF_00139};
DE EC=3.5.4.10 {ECO:0000255|HAMAP-Rule:MF_00139};
DE AltName: Full=ATIC {ECO:0000255|HAMAP-Rule:MF_00139};
DE AltName: Full=IMP synthase {ECO:0000255|HAMAP-Rule:MF_00139};
DE AltName: Full=Inosinicase {ECO:0000255|HAMAP-Rule:MF_00139};
GN Name=purH {ECO:0000255|HAMAP-Rule:MF_00139};
GN OrderedLocusNames=Rsph17029_2763;
OS Cereibacter sphaeroides (strain ATCC 17029 / ATH 2.4.9) (Rhodobacter
OS sphaeroides).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC Rhodobacteraceae; Cereibacter.
OX NCBI_TaxID=349101;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 17029 / ATH 2.4.9;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA Kiss H., Brettin T., Bruce D., Han C., Tapia R., Gilna P., Schmutz J.,
RA Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Richardson P.,
RA Mackenzie C., Choudhary M., Donohue T.J., Kaplan S.;
RT "Complete sequence of chromosome 1 of Rhodobacter sphaeroides ATCC 17029.";
RL Submitted (FEB-2007) to the EMBL/GenBank/DDBJ databases.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(6S)-10-formyltetrahydrofolate + 5-amino-1-(5-phospho-beta-D-
CC ribosyl)imidazole-4-carboxamide = (6S)-5,6,7,8-tetrahydrofolate + 5-
CC formamido-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide;
CC Xref=Rhea:RHEA:22192, ChEBI:CHEBI:57453, ChEBI:CHEBI:57454,
CC ChEBI:CHEBI:58467, ChEBI:CHEBI:58475; EC=2.1.2.3;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00139};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + IMP = 5-formamido-1-(5-phospho-D-ribosyl)imidazole-4-
CC carboxamide; Xref=Rhea:RHEA:18445, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:58053, ChEBI:CHEBI:58467; EC=3.5.4.10;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00139};
CC -!- PATHWAY: Purine metabolism; IMP biosynthesis via de novo pathway; 5-
CC formamido-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide from 5-amino-
CC 1-(5-phospho-D-ribosyl)imidazole-4-carboxamide (10-formyl THF route):
CC step 1/1. {ECO:0000255|HAMAP-Rule:MF_00139}.
CC -!- PATHWAY: Purine metabolism; IMP biosynthesis via de novo pathway; IMP
CC from 5-formamido-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide: step
CC 1/1. {ECO:0000255|HAMAP-Rule:MF_00139}.
CC -!- DOMAIN: The IMP cyclohydrolase activity resides in the N-terminal
CC region. {ECO:0000255|HAMAP-Rule:MF_00139}.
CC -!- SIMILARITY: Belongs to the PurH family. {ECO:0000255|HAMAP-
CC Rule:MF_00139}.
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DR EMBL; CP000577; ABN77865.1; -; Genomic_DNA.
DR RefSeq; WP_002721490.1; NC_009049.1.
DR AlphaFoldDB; A3PNE9; -.
DR SMR; A3PNE9; -.
DR EnsemblBacteria; ABN77865; ABN77865; Rsph17029_2763.
DR GeneID; 57471436; -.
DR KEGG; rsh:Rsph17029_2763; -.
DR HOGENOM; CLU_016316_5_2_5; -.
DR OMA; WRVAKFV; -.
DR UniPathway; UPA00074; UER00133.
DR UniPathway; UPA00074; UER00135.
DR GO; GO:0003937; F:IMP cyclohydrolase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0004643; F:phosphoribosylaminoimidazolecarboxamide formyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006189; P:'de novo' IMP biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.140.20; -; 2.
DR Gene3D; 3.40.50.1380; -; 1.
DR HAMAP; MF_00139; PurH; 1.
DR InterPro; IPR024051; AICAR_Tfase_dup_dom_sf.
DR InterPro; IPR016193; Cytidine_deaminase-like.
DR InterPro; IPR011607; MGS-like_dom.
DR InterPro; IPR036914; MGS-like_dom_sf.
DR InterPro; IPR002695; PurH-like.
DR PANTHER; PTHR11692; PTHR11692; 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 SMART; SM00851; MGS; 1.
DR SUPFAM; SSF52335; SSF52335; 1.
DR SUPFAM; SSF53927; SSF53927; 1.
DR TIGRFAMs; TIGR00355; purH; 1.
DR PROSITE; PS51855; MGS; 1.
PE 3: Inferred from homology;
KW Hydrolase; Multifunctional enzyme; Purine biosynthesis; Transferase.
FT CHAIN 1..529
FT /note="Bifunctional purine biosynthesis protein PurH"
FT /id="PRO_1000057909"
FT DOMAIN 2..149
FT /note="MGS-like"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01202"
SQ SEQUENCE 529 AA; 55829 MW; 085069F91C150C9C CRC64;
MTNLVPVGRA LLSVSDKSGL LDLARALADL EVELISTGGT AAALRAAGLK VRDVAEVTGF
PEMMDGRVKT LHPMVHGGLL ALRDDDEHLV AMAAHGIEPI DLLVVNLYPF EAAVARGASY
DDCIENIDIG GPAMIRAAAK NHRFVNVVTD TADYKALLDE LRAHDGATRL SFRQKLALTA
YARTAAYDTA VSTWMAGALK AEAPRRRSFA GTLAQTMRYG ENPHQKAAFY TDGSARPGVA
TAKQWQGKEL SYNNINDTDA AFELVAEFDP AEGPACVIVK HANPCGVARG ATLAEAYARA
FDCDRVSAFG GIIALNQPLD AATAEKITEI FTEVVIAPGA DEEARAIFAA KKNLRLLTTE
ALPDPLAPGL AFKQVAGGFL VQDRDAGHVD ALDLKVVTKR APSDAELADL LFAWTVAKHV
KSNAIVYVKD GATVGVGAGQ MSRVDSTRIA ARKSQDMAQA LGLAQPLTQG SVVASDAFFP
FADGLLAAAE AGATAIIQPG GSMRDDEVIA AADEAGLAMV FTGQRHFRH
