ID   PHS_METS5               Reviewed;          96 AA.
AC   A4YEM3;
DT   26-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   29-MAY-2007, sequence version 1.
DT   25-MAY-2022, entry version 81.
DE   RecName: Full=Putative pterin-4-alpha-carbinolamine dehydratase {ECO:0000255|HAMAP-Rule:MF_00434};
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   OrderedLocusNames=Msed_0700;
OS   Metallosphaera sedula (strain ATCC 51363 / DSM 5348 / JCM 9185 / NBRC 15509
OS   / TH2).
OC   Archaea; Crenarchaeota; Thermoprotei; Sulfolobales; Sulfolobaceae;
OC   Metallosphaera.
OX   NCBI_TaxID=399549;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51363 / DSM 5348 / JCM 9185 / NBRC 15509 / TH2;
RX   PubMed=18083856; DOI=10.1128/aem.02019-07;
RA   Auernik K.S., Maezato Y., Blum P.H., Kelly R.M.;
RT   "The genome sequence of the metal-mobilizing, extremely thermoacidophilic
RT   archaeon Metallosphaera sedula provides insights into bioleaching-
RT   associated metabolism.";
RL   Appl. Environ. Microbiol. 74:682-692(2008).
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; CP000682; ABP94875.1; -; Genomic_DNA.
DR   RefSeq; WP_012020662.1; NC_009440.1.
DR   AlphaFoldDB; A4YEM3; -.
DR   SMR; A4YEM3; -.
DR   STRING; 399549.Msed_0700; -.
DR   EnsemblBacteria; ABP94875; ABP94875; Msed_0700.
DR   GeneID; 5105306; -.
DR   GeneID; 59455846; -.
DR   KEGG; mse:Msed_0700; -.
DR   eggNOG; arCOG02939; Archaea.
DR   HOGENOM; CLU_081974_4_0_2; -.
DR   OMA; WAEKWNH; -.
DR   Proteomes; UP000000242; Chromosome.
DR   GO; GO:0008124; F:4-alpha-hydroxytetrahydrobiopterin dehydratase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006729; P:tetrahydrobiopterin biosynthetic process; IEA:InterPro.
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   PANTHER; PTHR12599; PTHR12599; 1.
DR   Pfam; PF01329; Pterin_4a; 1.
DR   SUPFAM; SSF55248; SSF55248; 1.
PE   3: Inferred from homology;
KW   Lyase; Reference proteome.
FT   CHAIN           1..96
FT                   /note="Putative pterin-4-alpha-carbinolamine dehydratase"
FT                   /id="PRO_1000072315"
SQ   SEQUENCE   96 AA;  11181 MW;  713B0E3BB1B83100 CRC64;
     MPRLSVQEID QALKGLRNWR FENGELVKEF KFADFDSSIR FLNMVQPVAD SLDHHPDLCV
     YYNRVIVHLT THDEGGVTDL DLKLAQKLDE LEKMVH