>cd04880 ACT_AAAH-PDT-like ACT domain of the nonheme iron-dependent, aromatic amino acid hydroxylases (AAAH). ACT domain of the nonheme iron-dependent, aromatic amino acid hydroxylases (AAAH): Phenylalanine hydroxylases (PAH), tyrosine hydroxylases (TH) and tryptophan hydroxylases (TPH), both peripheral (TPH1) and neuronal (TPH2) enzymes. This family of enzymes shares a common catalytic mechanism, in which dioxygen is used by an active site containing a single, reduced iron atom to hydroxylate an unactivated aromatic substrate, concomitant with a two-electron oxidation of tetrahydropterin (BH4) cofactor to its quinonoid dihydropterin form. Eukaryotic AAAHs have an N-terminal ACT (regulatory) domain, a middle catalytic domain and a C-terminal domain which is responsible for the oligomeric state of the enzyme forming a domain-swapped tetrameric coiled-coil. The PAH, TH, and TPH enzymes contain highly conserved catalytic domains but distinct N-terminal ACT domains and differ in their mech

Probab=96.82  E-value=0.011  Score=38.99  Aligned_cols=66  Identities=15%  Similarity=0.292  Sum_probs=49.2

Q ss_pred             EEEEECCCCCHHHHHHHHHHHCCCCEEEEEECCCCCCCCEEEEEE-EEEECCHHHHHHHHHHHHCCC
Q ss_conf             999924888748999999886699578888226778776135999-921048899999999862383
Q gi|254780900|r  356 IRLTIRNFEGILDKITSQMSDFNISLRLFSCPHQEENSQEFSVFM-ITHKVSGKLIRDAIECFNGKS  421 (438)
Q Consensus       356 LRl~v~DkpGVLa~It~ilak~~ISIesi~Q~~~~~~~~~~~IVi-iTh~~~e~~i~~ai~~i~~l~  421 (438)
T Consensus         2 i~f~~~~~pGaL~~~L~~F~~~~iNlt~IeSRP~~~~~~~y~F~id~eg~~~~~~~~~~l~~l~~~~   68 (75)
T cd04880           2 LVFSLKNKPGALAKALKVFAERGINLTKIESRPSRKGLWEYEFFVDFEGHIDDPDVKEALEELKRVT   68 (75)
T ss_pred             EEEEECCCCCHHHHHHHHHHHCCCCEEEEEEEECCCCCCEEEEEEEEECCCCCHHHHHHHHHHHHHC
T ss_conf             8999689787899999999988966799995774999956999999716859789999999999847