>TIGR00507 aroE shikimate 5-dehydrogenase; InterPro: IPR011342 The shikimate pathway links the metabolism of carbohydrates to the biosynthesis of aromatic compounds and is essential for the biosynthesis of aromatic amino acids and other aromatic compounds in bacteria, eukaryotic microorganisms and plants . It is a seven-step pathway which converts phosphoenolpyruvate and erythrose 4-phosphate to chorismate, the common precursor for the synthesis of folic acid, ubiquinone, vitamins E and K, and aromatic amino acids. Since this pathway is absent in metazoans, which must therefore obtain the essential amino acids phenylalanine and tryptophan from their diet, the enzymes in this pathway are important targets for the development of novel herbicides and antimicrobial compounds. This entry represents shikimate 5-dehydrogenases from prokaryotes and functionally equivalent C-terminal domains from larger, multifunctional proteins, the majority of which have an N-terminal quinate dehydrogenase domain. These multifunctional proteins occur in plants, chlamydiae, planctomycetes and a limited number of marine proteobacteria. Shikimate 5-dehydrogenase catalyses the fourth step of the shikimate pathway, which is the NADP-dependent reduction of 3-dehydroshikimate to shikimate . Structural studies suggests that some shikimate dehydrogenases are monmers while others form homodimers , . Each shikimate dehydrogenase monomer forms a compact two-domain alpha/beta sandwich with a deep interdomain cleft. The N-terminal substrate-binding domain forms a three layer alpha-beta-alpha sandwich, while the C-terminal NADP-binding domain forms a nearly typical Rossman fold. The active site is thought to be located within the interdomain cleft, with substrate binding causing a conformational change which closes the active site cleft, forming a productive active site.; GO: 0004764 shikimate 5-dehydrogenase activity, 0050661 NADP binding.

Probab=98.49 E-value=1.4e-06 Score=63.17 Aligned_cols=132 Identities=25% Similarity=0.352 Sum_probs=94.4 Q ss_pred CCEEEEECCCHHHHHHHHHHHHCCCCCCEEEEEECCHHHHHHHHHHHHHHCCCCCCCCCEEEEECCCCHHHHHHHHHHCC Q ss_conf 73199984987799999999960898725999639999999999873430245555573089943789899999997539 Q gi|254780742|r 2 KKNVLIIGAGGVAHVVAHKCAQNNDILGDINIASRTLQKCSKIIDSIYKKKSLKIDGKLAIHQVDALNIKAVVELIKKTN 81 (419) Q Consensus 2 ~k~ilv~GaG~vG~~~~~~L~~~~~~~~~i~va~r~~~~~~~~~~~l~~~~~~~~~~~~~~~~~D~~d~~~l~~~~~~~~ 81 (419) T Consensus 121 ~~~~li~GAGGAa~a~a~~L~~~t~--~~~~i~NRT~~ka~~La~~~~~kln~~~-G~~~~~~~~--~~-------~l~~ 188 (286) T TIGR00507 121 NQRVLIIGAGGAAKAVALELLKATD--CNVIIANRTVEKAEELAERFQRKLNKKY-GEIQAFSLD--EV-------PLHK 188 (286) T ss_pred CCEEEEEECCHHHHHHHHHHHHHCC--CEEEEEECCHHHHHHHHHHHHHHHHHHC-CCEEEEECC--CC-------CCCC T ss_conf 9779999428678999999986009--9789982877899999999898853424-853652113--35-------5557 Q ss_pred --CCEEEECCCCCCCH-----HHHHHHHHCCCCEEEECCCCC-CHHCCCCCCCCHHHHHHHHHHHHHCC-CEEEECCCHH Q ss_conf --72999737610032-----789999862886896036642-00001442000035775108888518-8699537501 Q gi|254780742|r 82 --SQIIINVGSSFLNM-----SVLRACIDSNVAYIDTAIHES-PLKICESPPWYNNYEWSLLDECRTKS-ITAILGAGFD 152 (419) Q Consensus 82 --~dvVin~~~p~~~~-----~v~~a~i~~g~hyvD~s~~~~-~~~~~~~~~~~~~~~~~l~~~a~~ag-~~~i~~~G~~ 152 (419) T Consensus 189 G~~DlIINATs~G~~~~~~~~~v~~~~~~~~~~v~D~~Y~p~t~T--------------pfl~~Ak~~g~~~~~dG~g-- 252 (286) T TIGR00507 189 GKVDLIINATSAGMSGNIDEPPVPAELLKEGKLVYDLVYNPLTET--------------PFLKEAKKRGLTKVIDGLG-- 252 (286) T ss_pred CCEEEEEECCCCCCCCCCCCCCCCHHHCCCCCEEEECCCCCCCCC--------------HHHHHHHHCCCCCCCCCHH-- T ss_conf 856799854677888898874568534168868995146886557--------------7899998768856545304-- Q ss_pred HHHHHHHHHHHHHH Q ss_conf 11488999999997 Q gi|254780742|r 153 PGVVNAFARLAQDE 166 (419) Q Consensus 153 PGl~~lla~~~~~~ 166 (419) T Consensus 253 -----MLv~QAA~~ 261 (286) T TIGR00507 253 -----MLVAQAALS 261 (286) T ss_pred -----HHHHHHHHH T ss_conf -----589999986

HHsearch alignment for GI: 254780742 and conserved domain: TIGR00507