ID   HEM1_BACCZ              Reviewed;         444 AA.
AC   Q633X8;
DT   01-FEB-2005, integrated into UniProtKB/Swiss-Prot.
DT   25-OCT-2004, sequence version 1.
DT   04-NOV-2008, entry version 37.
DE   RecName: Full=Glutamyl-tRNA reductase;
DE            Short=GluTR;
DE            EC=1.2.1.70;
GN   Name=hemA; OrderedLocusNames=BCE33L4210;
OS   Bacillus cereus (strain ZK / E33L).
OC   Bacteria; Firmicutes; Bacillales; Bacillaceae; Bacillus;
OC   Bacillus cereus group.
OX   NCBI_TaxID=288681;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=16621833; DOI=10.1128/JB.188.9.3382-3390.2006;
RA   Han C.S., Xie G., Challacombe J.F., Altherr M.R., Bhotika S.S.,
RA   Bruce D., Campbell C.S., Campbell M.L., Chen J., Chertkov O.,
RA   Cleland C., Dimitrijevic M., Doggett N.A., Fawcett J.J., Glavina T.,
RA   Goodwin L.A., Hill K.K., Hitchcock P., Jackson P.J., Keim P.,
RA   Kewalramani A.R., Longmire J., Lucas S., Malfatti S., McMurry K.,
RA   Meincke L.J., Misra M., Moseman B.L., Mundt M., Munk A.C.,
RA   Okinaka R.T., Parson-Quintana B., Reilly L.P., Richardson P.,
RA   Robinson D.L., Rubin E., Saunders E., Tapia R., Tesmer J.G.,
RA   Thayer N., Thompson L.S., Tice H., Ticknor L.O., Wills P.L.,
RA   Brettin T.S., Gilna P.;
RT   "Pathogenomic sequence analysis of Bacillus cereus and Bacillus
RT   thuringiensis isolates closely related to Bacillus anthracis.";
RL   J. Bacteriol. 188:3382-3390(2006).
CC   -!- FUNCTION: Catalyzes the NADPH-dependent reduction of glutamyl-
CC       tRNA(Glu) to glutamate 1-semialdehyde (GSA) (By similarity).
CC   -!- CATALYTIC ACTIVITY: L-glutamate 1-semialdehyde + NADP(+) +
CC       tRNA(Glu) = L-glutamyl-tRNA(Glu) + NADPH.
CC   -!- PATHWAY: Porphyrin metabolism; protoporphyrin-IX biosynthesis; 5-
CC       aminolevulinate from L-glutamyl-tRNA(Glu): step 1/2.
CC   -!- SUBUNIT: Homodimer (By similarity).
CC   -!- DOMAIN: Possesses an unusual extended V-shaped dimeric structure
CC       with each monomer consisting of three distinct domains arranged
CC       along a curved 'spinal' alpha-helix. The N-terminal catalytic
CC       domain specifically recognizes the glutamate moiety of the
CC       substrate. The second domain is the NADPH-binding domain, and the
CC       third C-terminal domain is responsible for dimerization (By
CC       similarity).
CC   -!- MISCELLANEOUS: During catalysis, the active site Cys acts as a
CC       nucleophile attacking the alpha-carbonyl group of tRNA-bound
CC       glutamate with the formation of a thioester intermediate between
CC       enzyme and glutamate, and the concomitant release of tRNA(Glu).
CC       The thioester intermediate is finally reduced by direct hydride
CC       transfer from NADPH, to form the product GSA (By similarity).
CC   -!- SIMILARITY: Belongs to the glutamyl-tRNA reductase family.
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DR   EMBL; CP000001; AAU16055.1; -; Genomic_DNA.
DR   RefSeq; YP_085789.1; -.
DR   GeneID; 3022966; -.
DR   GenomeReviews; CP000001_GR; BCE33L4210.
DR   KEGG; bcz:BCZK4210; -.
DR   HOGENOM; Q633X8; -.
DR   BioCyc; BCER288681:BCE33L4210-MON; -.
DR   GO; GO:0008883; F:glutamyl-tRNA reductase activity; IEA:HAMAP.
DR   GO; GO:0055114; P:oxidation reduction; IEA:UniProtKB-KW.
DR   GO; GO:0006779; P:porphyrin biosynthetic process; IEA:HAMAP.
DR   HAMAP; MF_00087; -; 1.
DR   InterPro; IPR000343; 4pyrrol_synth_GluRdtase.
DR   InterPro; IPR015896; 4pyrrol_synth_GluRdtase_C.
DR   InterPro; IPR015895; 4pyrrol_synth_GluRdtase_N.
DR   InterPro; IPR016040; NAD(P)-bd.
DR   InterPro; IPR006151; Shikm_DHase/Glu-tRNA_Rdtase.
DR   Gene3D; G3DSA:3.40.50.720; NAD(P)-bd; 1.
DR   Pfam; PF00745; GlutR_dimer; 1.
DR   Pfam; PF05201; GlutR_N; 1.
DR   Pfam; PF01488; Shikimate_DH; 1.
DR   PIRSF; PIRSF000445; 4pyrrol_synth_GluRdtase; 1.
DR   TIGRFAMs; TIGR01035; hemA; 1.
DR   PROSITE; PS00747; GLUTR; 1.
PE   3: Inferred from homology;
KW   Complete proteome; NADP; Oxidoreductase; Porphyrin biosynthesis.
FT   CHAIN         1    444       Glutamyl-tRNA reductase.
FT                                /FTId=PRO_0000113991.
FT   NP_BIND     189    194       NADP (By similarity).
FT   REGION       49     52       Substrate binding (By similarity).
FT   REGION      114    116       Substrate binding (By similarity).
FT   ACT_SITE     50     50       Nucleophile (By similarity).
FT   BINDING     109    109       Substrate (By similarity).
FT   BINDING     120    120       Substrate (By similarity).
FT   SITE         99     99       Important for activity (By similarity).
SQ   SEQUENCE   444 AA;  49797 MW;  593CF3FC998B0643 CRC64;
     MHILVVSVNY RTAPVEFREK LTFQAAELER AMTTLQNQKS VLENVIVSTC NRTEIYAVVD
     QLHTGRYYIK KFLADWFQLE IEEVAPYLTI FEQDGAIDHL FRVTCGLDSM VVGETQILGQ
     IKDSFLEAQQ VKATGTIFNE LFKQVITLAK RAHSETTIGE SAMSVSYAAV ELGKKIFGEL
     TDCHVLILGA GKMGELALQN LYGSGARKVT VMNRTLSKAE IMAEKYMGHA KPLSELQCAL
     LEADILISST GASDYVITKE MMTKVEKMRS GRPLFMVDIA VPRDIDPAID ELEGSFLYDI
     DDLQGVVEAN RAERLKEAEK IQFMIEEEIV LFKTWLSTLG VVPLISALRD KALAIQSETM
     ESLERKIPNL SDRERKVISK HTKSIINQLL KDPILVAKEI AAEEGADEKL ALFAKIFDLE
     MEDVESRAEE VEHKRAWTPS VPSL
//