HHsearch alignment for GI: 254780873 and conserved domain: TIGR00657
>TIGR00657 asp_kinases aspartate kinase; InterPro: IPR001341 Bacteria, plants and fungi metabolise aspartic acid to produce four amino acids - lysine, threonine, methionine and isoleucine - in a series of reactions known as the aspartate pathway. Additionally, several important metabolic intermediates are produced by these reactions, such as diaminopimelic acid, an essential component of bacterial cell wall biosynthesis, and dipicolinic acid, which is involved in sporulation in Gram-positive bacteria. Members of the animal kingdom do not posses this pathway and must therefore acquire these essential amino acids through their diet. Research into improving the metabolic flux through this pathway has the potential to increase the yield of the essential amino acids in important crops, thus improving their nutritional value. Additionally, since the enzymes are not present in animals, inhibitors of them are promising targets for the development of novel antibiotics and herbicides. For more information see . Aspartate kinase (2.7.2.4 from EC) (AK) catalyzes the first reaction in the aspartate pathway; the phosphorylation of aspartate. The product of this reaction can then be used in the biosynthesis of lysine or in the pathway leading to homoserine, which participates in the biosynthesis of threonine, isoleucine and methionine . In bacteria there are three different aspartate kinase isozymes which differ in sensitivity to repression and inhibition by Lys, Met and Thr. AK1 and AK2 are bifunctional enzymes which both consist of an N-terminal AK domain and a C-terminal homoserine dehydrogenase domain. AK1 is involved in threonine biosynthesis and AK2, in that of methionine. The third isozyme, AK3 is monofunctional and involved in lysine synthesis. In archaea and plants there may be a single isozyme of AK which in plants is multifunctional. This entry represents a region encoding aspartate kinase activity found in both the monofunctional and bifunctional enzymes. Synonym(s): Aspartokinase; GO: 0004072 aspartate kinase activity, 0008652 amino acid biosynthetic process.
Probab=98.57 E-value=4.4e-07 Score=67.59 Aligned_cols=232 Identities=22% Similarity=0.236 Sum_probs=133.1
Q ss_pred CCHHHHHHHHHHCHHHH--H--HHC-CHHHHEECCCCCCCCCCEECCCCHHHHHHHHHCCCCCHHHHHHHHHHHCCCEEE
Q ss_conf 24289999988473455--6--534-614402458421234411056799999998840311013788764331385267
Q gi|254780873|r 153 SDTSAVAIAAAIKADRC--D--IYT-DVCGIYTTDPRIEPKAHLMKKISFEEMLEMSSLGAKVMQVRSVELAMLYKMCLF 227 (411)
Q Consensus 153 SD~tA~~ia~~l~A~~~--~--i~t-dV~Gi~taDPr~v~~a~~i~~lsy~Ea~eLa~~Gakvlhp~~~~~~~~~~ipi~ 227 (411)
T Consensus 133 E~~S~~l~~~~l~~~G~K~~~~~l~~~~~~I~T~~-------------~~~~A~p-~~~~~~~~~~~rL~~~L~~g~~ip 198 (504)
T TIGR00657 133 ERLSIALLSAALEELGVKAKAVSLTGAQAGILTDS-------------NFGRARP-DLAVIIEILTERLEPLLEEGDIIP 198 (504)
T ss_pred HHHHHHHHHHHHHHCCCCCCCCCCCCCCCCEEECC-------------CCCCCCC-CHHHHHHHHHHHHHHHHHCCCEEE
T ss_conf 58889999999974578520122114745455447-------------6676412-024677766999999984698799
Q ss_pred EECCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC------------------------CCHHCCCCCCCCCCCCCH
Q ss_conf 61123777776543545454210122231011123466------------------------200012775000484100
Q gi|254780873|r 228 VRSSFEDHGQQEQLGTLICSGEDIMEKKVITGIAYTKD------------------------EAQISLRRLRDHPGISAS 283 (411)
Q Consensus 228 i~ntf~~~~~~~~~GT~I~~~~~~~~~~~Vk~Is~~~~------------------------i~~Iti~~~~~~~g~~a~ 283 (411)
T Consensus 199 vvaGF~G~~~~g~~TtLGRGGSD~t--A~llA~aL~Ad~~~IyTDV~Gi~T~DPR~V~~Ar~i~~isy~Em~ELA~~GAK 276 (504)
T TIGR00657 199 VVAGFQGATEKGEITTLGRGGSDYT--AALLAAALKADECEIYTDVDGIYTTDPRIVPDARRIDEISYEEMLELASFGAK 276 (504)
T ss_pred EEEEEEECCCCCEEEEEECCHHHHH--HHHHHHHHCCCEEEEEECCCCCEECCCCCCCCCCCCCCCCHHHHHHHHHHCHH
T ss_conf 9840041057750798306806899--99999861996899987279503278863766520454487899999850316
Q ss_pred -----HHHHHHH-CCCCEECCCCCCCC-CCCCCCCEEECCHHHHHHHHHHHHHHHHHCCCCEEEEECCEEEEEEECCCCC
Q ss_conf -----0145541-28501112344322-2233310121230247766887898886059615897489169999667866
Q gi|254780873|r 284 -----IFSPLAE-AHINIDMIIQNVSE-DGQYVDITFTTPSSSLEKALAVLSDNKENIGYDVIQHEDNLVKISAIGIGMQ 356 (411)
Q Consensus 284 -----If~~La~-~~I~VdmI~qs~s~-~~~~~~Isf~i~~~d~~~~~~~L~~~~~~~~~~~I~~~~~~a~ISvVG~gm~ 356 (411)
T Consensus 277 VLHPr~~ep~~~~~~ip~~v~st~~~~a~G-----T~I~~~~~~~~~~s~~~---~~~~~~~~~~~~~~~~~~v~g~~~~ 348 (504)
T TIGR00657 277 VLHPRTLEPAMRDYKIPIVVKSTFNPEAPG-----TLIVASSKAKKGESESM---EEPIVKGISLDKNQARVTVSGLGMK 348 (504)
T ss_pred HHHHHHHHHHHCCCCCCEEEECCCCCCCCC-----EEECCCCCCCCCCCCCC---CCCCEEEEEECCCEEEEEEEECCCC
T ss_conf 532788999846799518996077889996-----68717744575101226---6630234411366168998522678
Q ss_pred C-CCCHHHHHHHHHHHCC----CEEEEEE------EC--CCE---EEEEECHHH--HHHHHHHHHHHCCC
Q ss_conf 7-8557999999998679----8299997------07--848---999970889--99999999987097
Q gi|254780873|r 357 S-YAGVASAFFLCLAEKG----INIKAIT------TS--EIK---ISVLIDSAY--TELAVRSLHSCYGL 408 (411)
Q Consensus 357 ~-~~Giaakif~aL~~~~----InI~~is------sS--e~~---IS~VV~~~d--~~~Av~~LH~~F~l 408 (411)
T Consensus 349 ~~~~g~~~~vf~~l~~~~~~l~i~v~~I~~~y~Q~~~~~~~~~~di~f~v~~~~i~~~~a~~~l~~~f~~ 418 (504)
T TIGR00657 349 GSMPGILAEVFGALAEAGHGLLINVDLISDKYKQSSSKIETSKTDISFTVDKEDIEADQAKELLKKEFLQ 418 (504)
T ss_pred CCCCHHHHHHHHHHHHCCCCEEEEEEEEEEEECCCCCCCCCCCEEEEEEECCCCCCHHHHHHHHHHHHHH
T ss_conf 7510278899999862379426321346753035567640153059999625357768999999887887