HHsearch alignment for GI: 254780989 and conserved domain: TIGR01686

>TIGR01686 FkbH FkbH domain; InterPro: IPR010037 This entry describes a domain of unknown function. One of proteins with this domain is a modular polyketide synthase, which is 4800 amino acids in length from Streptomyces avermilitis, where the domain is the C-terminal segment. By contrast, the FkbH protein from Streptomyces hygroscopicus (Q84G18 from SWISSPROT) apparently contains only this domain. The remaining members of the family all contain an additional N-terminal domain of between 200 and 275 amino acids, which show less than 20 0dentity to one another. It seems likely then that these proteins are involved in disparate functions, probably the biosynthesis of different natural products. For instance, the FkbH gene is found in a gene cluster believed to be responsible for the biosynthesis of unusual 'PKS extender units' in the ascomycin pathway . This domain is composed of two parts, the first of which is a member of subfamily IIIC of the haloacid dehalogenase (HAD) superfamily of aspartate-nucleophile hydrolases. All of the characterised enzymes within subfamily III are phosphatases, and all of the active site residues characteristic of HAD-superfamily phosphatases are present in this domain. The C-terminal portion of this domain is unique to this family (by BLAST)..
Probab=95.94  E-value=0.017  Score=35.25  Aligned_cols=119  Identities=18%  Similarity=0.213  Sum_probs=81.7

Q ss_pred             CEEECCCCHHHHHHHHHHHHHH--CCCCCCCCCCCEEHHHHHCHHCCCCCC-CEEEEEEE--E---CCEEEEEEEEEEEE
Q ss_conf             2075137975789999999997--278766675615202541200025766-54899998--9---87864799999988
Q gi|254780989|r   13 GLTFANEQRVDQVAVDEVMVKA--FLSTQEITDDVLHKYVRNNVEEPLSFV-RLMSFVCR--D---GDRIVGAIRATPIQ   84 (185)
Q Consensus        13 ~l~IR~a~~~D~~aI~~L~~~a--F~~~~~~~~~~~~~~~~~~~~~~~~~~-~~l~~Vae--~---d~~iVG~i~~~~~~   84 (185)
T Consensus       197 ~l~~~~~~~~~v~Rv~~L~~rTnQf~~~-------~~~~~~~dl~~~~~~~s~~~v~~~~~~DrfgD~G~vG~~~~~~--  267 (337)
T TIGR01686       197 SLDISKLKEEEVQRVEELVRRTNQFNLT-------AERLDEEDLKQTMEEESAEEVLTVAMSDRFGDSGLVGILLLEK--  267 (337)
T ss_pred             EEEHHHCCCCCCHHHHHHHHHHHHHHHH-------HCCCCHHHHHHHHCCCCCEEEEEEEEECCCCCCCCEEEEEEEC--
T ss_conf             5421013621360488873113323121-------0136777899984489853899998641458876089999852--


Q ss_pred             ECCCCEEEEEEEEECHHHHCCCHHHHHHHHHHHHHH---HCCCCEEEEECCH--------HHHHHCCCE
Q ss_conf             606784899867752546159989999999999999---8899799995083--------254313858
Q gi|254780989|r   85 IGKYKGFLRGPLGVLSEYRKRGIGSRLAYMSFMAIK---NSGAEFVLIDAKH--------DWHKHLGFK  142 (185)
Q Consensus        85 ~~~~~~~~l~~laV~P~~qg~GiG~~Li~~~l~~a~---~~G~~~v~l~~~~--------~~Y~r~GF~  142 (185)
T Consensus       268 --~e~~l~i~~l~~SCR~l~r~~e~~~L~~l~d~A~hff~~g~~~~~~~y~~T~rN~~~~~~~~~~g~~  334 (337)
T TIGR01686       268 --KEGQLVIKDLVMSCRVLGRGVEERLLRWLVDQAKHFFELGAHKVRLIYRRTERNVPVESFYEELGFE  334 (337)
T ss_pred             --CCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHEEEEECCCCCCHHHHHHHHHHCCC
T ss_conf             --8751528767664014101167999999999889999841354031006898776899999985312