ID A0A5C7TWZ6_9RHOB Unreviewed; 99 AA. AC A0A5C7TWZ6; DT 13-NOV-2019, integrated into UniProtKB/TrEMBL. DT 13-NOV-2019, sequence version 1. DT 12-AUG-2020, entry version 5. DE RecName: Full=4a-hydroxytetrahydrobiopterin dehydratase {ECO:0000256|ARBA:ARBA00013252}; DE EC=4.2.1.96 {ECO:0000256|ARBA:ARBA00013252}; GN ORFNames=E6Q73_06980 {ECO:0000313|EMBL:TXI01552.1}; OS Pseudorhodobacter sp. OC Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales; OC Rhodobacteraceae; Pseudorhodobacter; unclassified Pseudorhodobacter. OX NCBI_TaxID=1934400 {ECO:0000313|EMBL:TXI01552.1, ECO:0000313|Proteomes:UP000321495}; RN [1] {ECO:0000313|EMBL:TXI01552.1, ECO:0000313|Proteomes:UP000321495} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=Bin_24_4 {ECO:0000313|EMBL:TXI01552.1}; RA Stamps B.W., Spear J.R.; RT "Metagenome Assembled Genomes from an Advanced Water Purification RT Facility."; RL Submitted (SEP-2018) 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}. CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ CC whole genome shotgun (WGS) entry which is preliminary data. CC {ECO:0000313|EMBL:TXI01552.1}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; SSFK01000150; TXI01552.1; -; Genomic_DNA. DR Proteomes; UP000321495; 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; -; 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 {ECO:0000256|ARBA:ARBA00023239}. SQ SEQUENCE 99 AA; 10656 MW; 90954F5771F357AC CRC64; MNGFSRLAPE ACRAAMAGLH PDWQLDHAAR AISRAFAFKG MAKAAQLANL AVWHAEKTGH HPDIAFGWGY CRLTYTTHDI GGLTEADFAT AAGFDALIL //