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PHS_PSEPK
ID   PHS_PSEPK               Reviewed;         118 AA.
AC   Q88EH2;
DT   24-MAY-2004, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2003, sequence version 1.
DT   03-AUG-2022, entry version 88.
DE   RecName: Full=Pterin-4-alpha-carbinolamine dehydratase;
DE            Short=PHS {ECO:0000255|HAMAP-Rule:MF_00434};
DE            EC=4.2.1.96 {ECO:0000255|HAMAP-Rule:MF_00434};
DE   AltName: Full=4-alpha-hydroxy-tetrahydropterin dehydratase {ECO:0000255|HAMAP-Rule:MF_00434};
DE   AltName: Full=Pterin carbinolamine dehydratase {ECO:0000255|HAMAP-Rule:MF_00434};
DE            Short=PCD {ECO:0000255|HAMAP-Rule:MF_00434};
GN   Name=phhB; OrderedLocusNames=PP_4491;
OS   Pseudomonas putida (strain ATCC 47054 / DSM 6125 / CFBP 8728 / NCIMB 11950
OS   / KT2440).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas.
OX   NCBI_TaxID=160488;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 47054 / DSM 6125 / CFBP 8728 / NCIMB 11950 / KT2440;
RX   PubMed=12534463; DOI=10.1046/j.1462-2920.2002.00366.x;
RA   Nelson K.E., Weinel C., Paulsen I.T., Dodson R.J., Hilbert H.,
RA   Martins dos Santos V.A.P., Fouts D.E., Gill S.R., Pop M., Holmes M.,
RA   Brinkac L.M., Beanan M.J., DeBoy R.T., Daugherty S.C., Kolonay J.F.,
RA   Madupu R., Nelson W.C., White O., Peterson J.D., Khouri H.M., Hance I.,
RA   Chris Lee P., Holtzapple E.K., Scanlan D., Tran K., Moazzez A.,
RA   Utterback T.R., Rizzo M., Lee K., Kosack D., Moestl D., Wedler H.,
RA   Lauber J., Stjepandic D., Hoheisel J., Straetz M., Heim S., Kiewitz C.,
RA   Eisen J.A., Timmis K.N., Duesterhoeft A., Tuemmler B., Fraser C.M.;
RT   "Complete genome sequence and comparative analysis of the metabolically
RT   versatile Pseudomonas putida KT2440.";
RL   Environ. Microbiol. 4:799-808(2002).
CC   -!- FUNCTION: Involved in tetrahydrobiopterin biosynthesis. Seems to both
CC       prevent the formation of 7-pterins and accelerate the formation of
CC       quinonoid-BH2. May also have a positive regulatory role in the
CC       expression of phhA (By similarity). {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(4aS,6R)-4a-hydroxy-L-erythro-5,6,7,8-tetrahydrobiopterin =
CC         (6R)-L-erythro-6,7-dihydrobiopterin + H2O; Xref=Rhea:RHEA:11920,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15642, ChEBI:CHEBI:43120; EC=4.2.1.96;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00434};
CC   -!- SIMILARITY: Belongs to the pterin-4-alpha-carbinolamine dehydratase
CC       family. {ECO:0000255|HAMAP-Rule:MF_00434}.
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DR   EMBL; AE015451; AAN70066.1; -; Genomic_DNA.
DR   RefSeq; NP_746602.1; NC_002947.4.
DR   RefSeq; WP_003254532.1; NC_002947.4.
DR   AlphaFoldDB; Q88EH2; -.
DR   SMR; Q88EH2; -.
DR   STRING; 160488.PP_4491; -.
DR   EnsemblBacteria; AAN70066; AAN70066; PP_4491.
DR   GeneID; 58532288; -.
DR   GeneID; 66676977; -.
DR   KEGG; ppu:PP_4491; -.
DR   PATRIC; fig|160488.4.peg.4780; -.
DR   eggNOG; COG2154; Bacteria.
DR   HOGENOM; CLU_081974_2_2_6; -.
DR   OMA; FHHPGIL; -.
DR   PhylomeDB; Q88EH2; -.
DR   BioCyc; PPUT160488:G1G01-4793-MON; -.
DR   Proteomes; UP000000556; Chromosome.
DR   GO; GO:0008124; F:4-alpha-hydroxytetrahydrobiopterin dehydratase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006729; P:tetrahydrobiopterin biosynthetic process; IEA:UniProtKB-KW.
DR   Gene3D; 3.30.1360.20; -; 1.
DR   HAMAP; MF_00434; Pterin_4_alpha; 1.
DR   InterPro; IPR036428; PCD_sf.
DR   InterPro; IPR001533; Pterin_deHydtase.
DR   Pfam; PF01329; Pterin_4a; 1.
DR   SUPFAM; SSF55248; SSF55248; 1.
PE   3: Inferred from homology;
KW   Lyase; Reference proteome; Tetrahydrobiopterin biosynthesis.
FT   CHAIN           1..118
FT                   /note="Pterin-4-alpha-carbinolamine dehydratase"
FT                   /id="PRO_0000063066"
SQ   SEQUENCE   118 AA;  13422 MW;  F6719E893F064220 CRC64;
     MNALNQAHCE ACRADAPKVT DEELAELIRE IPDWNIEVRD GHMELERVFL FKNFKHALAF
     TNAVGEIAEA EGHHPGLLTE WGKVTVTWWS HSIKGLHRND FIMCARTDKV AETAEGRK
 
 
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