ID   PHS_TRIEI               Reviewed;          93 AA.
AC   Q116J2;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   22-AUG-2006, sequence version 1.
DT   25-MAY-2022, entry version 88.
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=Tery_1232;
OS   Trichodesmium erythraeum (strain IMS101).
OC   Bacteria; Cyanobacteria; Oscillatoriophycideae; Oscillatoriales;
OC   Microcoleaceae; Trichodesmium.
OX   NCBI_TaxID=203124;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=IMS101;
RG   US DOE Joint Genome Institute;
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., Munk A.C., Brettin T., Bruce D., Han C., Tapia R., Gilna P.,
RA   Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Kim E.,
RA   Richardson P.;
RT   "Complete sequence of Trichodesmium erythraeum IMS101.";
RL   Submitted (JUN-2006) 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; CP000393; ABG50582.1; -; Genomic_DNA.
DR   RefSeq; WP_011610962.1; NC_008312.1.
DR   AlphaFoldDB; Q116J2; -.
DR   SMR; Q116J2; -.
DR   STRING; 203124.Tery_1232; -.
DR   EnsemblBacteria; ABG50582; ABG50582; Tery_1232.
DR   KEGG; ter:Tery_1232; -.
DR   eggNOG; COG2154; Bacteria.
DR   HOGENOM; CLU_081974_4_0_3; -.
DR   OMA; WAEKWNH; -.
DR   OrthoDB; 1862336at2; -.
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.
FT   CHAIN           1..93
FT                   /note="Putative pterin-4-alpha-carbinolamine dehydratase"
FT                   /id="PRO_1000050468"
SQ   SEQUENCE   93 AA;  10429 MW;  5B44FC1DEC486B55 CRC64;
     MTELLAVEEI NQRISQISDW KLEGNKLKYI KTVKNFVEAI NFVNKLVAPA EASQHHPDLE
     VSYNKVTIIL TTHNSGGLTE KDFKMAKTIS GLS