ID   PHS_CHLP8               Reviewed;         111 AA.
AC   B3QQ83;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   02-SEP-2008, sequence version 1.
DT   25-MAY-2022, entry version 61.
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=Cpar_1693;
OS   Chlorobaculum parvum (strain DSM 263 / NCIMB 8327) (Chlorobium vibrioforme
OS   subsp. thiosulfatophilum).
OC   Bacteria; Chlorobi; Chlorobia; Chlorobiales; Chlorobiaceae; Chlorobaculum.
OX   NCBI_TaxID=517417;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 263 / NCIMB 8327;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Schmutz J., Larimer F., Land M.,
RA   Hauser L., Kyrpides N., Mikhailova N., Zhao F., Li T., Liu Z., Overmann J.,
RA   Bryant D.A., Richardson P.;
RT   "Complete sequence of Chlorobaculum parvum NCIB 8327.";
RL   Submitted (JUN-2008) to the EMBL/GenBank/DDBJ databases.
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; CP001099; ACF12086.1; -; Genomic_DNA.
DR   RefSeq; WP_012502919.1; NC_011027.1.
DR   AlphaFoldDB; B3QQ83; -.
DR   SMR; B3QQ83; -.
DR   STRING; 517417.Cpar_1693; -.
DR   EnsemblBacteria; ACF12086; ACF12086; Cpar_1693.
DR   KEGG; cpc:Cpar_1693; -.
DR   eggNOG; COG2154; Bacteria.
DR   HOGENOM; CLU_081974_2_2_10; -.
DR   OMA; FHHPGIL; -.
DR   OrthoDB; 1862336at2; -.
DR   Proteomes; UP000008811; 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   Pfam; PF01329; Pterin_4a; 1.
DR   SUPFAM; SSF55248; SSF55248; 1.
PE   3: Inferred from homology;
KW   Lyase.
FT   CHAIN           1..111
FT                   /note="Putative pterin-4-alpha-carbinolamine dehydratase"
FT                   /id="PRO_1000192914"
SQ   SEQUENCE   111 AA;  12476 MW;  5CD6865EB88D0905 CRC64;
     MTQLEKKHCV PCEGTEAPMA PEELQRQLSH IPDWNVVDDS GTPKLVRVFT FKDFNDALDF
     TVRVGQLAES EGHHPALLTE WGKVTVSWWT HAIGGIHLND VIMATKTEKL V