ID   A0A1H6LHT4_9GAMM        Unreviewed;        66 AA.
AC   A0A1H6LHT4;
DT   22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT   22-NOV-2017, sequence version 1.
DT   24-JAN-2024, entry version 14.
DE   RecName: Full=4a-hydroxytetrahydrobiopterin dehydratase {ECO:0000256|ARBA:ARBA00013252};
DE            EC=4.2.1.96 {ECO:0000256|ARBA:ARBA00013252};
GN   ORFNames=BAZSYMB_SCAFFOLD00030_4 {ECO:0000313|EMBL:SEH88126.1};
OS   Bathymodiolus azoricus thioautotrophic gill symbiont.
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; sulfur-oxidizing symbionts.
OX   NCBI_TaxID=235205 {ECO:0000313|EMBL:SEH88126.1, ECO:0000313|Proteomes:UP000198559};
RN   [1] {ECO:0000313|Proteomes:UP000198559}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=BazSymB {ECO:0000313|Proteomes:UP000198559};
RA   Petersen J., Sayavedra L.;
RL   Submitted (JUN-2016) 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:0000256|ARBA:ARBA00001554};
CC   -!- SIMILARITY: Belongs to the pterin-4-alpha-carbinolamine dehydratase
CC       family. {ECO:0000256|ARBA:ARBA00006472}.
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DR   EMBL; CVUD02000207; SEH88126.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A1H6LHT4; -.
DR   Proteomes; UP000198559; Unassembled WGS sequence.
DR   GO; GO:0008124; F:4-alpha-hydroxytetrahydrobiopterin dehydratase activity; IEA:UniProtKB-EC.
DR   GO; GO:0006729; P:tetrahydrobiopterin biosynthetic process; IEA:InterPro.
DR   Gene3D; 3.30.1360.20; Transcriptional coactivator/pterin dehydratase; 1.
DR   InterPro; IPR036428; PCD_sf.
DR   InterPro; IPR001533; Pterin_deHydtase.
DR   PANTHER; PTHR12599; PTERIN-4-ALPHA-CARBINOLAMINE DEHYDRATASE; 1.
DR   PANTHER; PTHR12599:SF0; PTERIN-4-ALPHA-CARBINOLAMINE DEHYDRATASE; 1.
DR   Pfam; PF01329; Pterin_4a; 1.
DR   SUPFAM; SSF55248; PCD-like; 1.
PE   3: Inferred from homology;
KW   Lyase {ECO:0000256|ARBA:ARBA00023239}.
SQ   SEQUENCE   66 AA;  7764 MW;  51C52EF48B9EE879 CRC64;
     MFNDFIEVFS FMTKVALIAE SLNHHPEWCN SYKQVVINLI THEVGEISER DFELARNIQV
     MTDAKY
//