HHsearch alignment for GI: 254780307 and conserved domain: TIGR01745
>TIGR01745 asd_gamma aspartate-semialdehyde dehydrogenase; InterPro: IPR011534 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-semialdehyde dehydrogenase, the second enzyme in the aspartate pathway, converts aspartyl phosphate to aspartate-semialdehyde, the branch point intermediate between the lysine and threonine/methionine pathways. Based on sequence alignments, the aspartate-semialdehyde dehydrogenase family appears to have two distinct subgroups, one found in most bacteria (Gram-positve and Gram-negative), while the other is found primarily in organisms lacking peptidoglycan (archaea,fungi and some bacteria). Most studies have been performed on enzymes isolated from Gram-negative bacteria , , , . The N-terminal domain forms the active site and NADP-binding pocket, while C-terminal domain is primarily involved in hydrophobic intersubunit contacts. The catalytic mechanism involves the formation of a covalent thioester acyl-enzyme intermediate mediated through nucleophilic attack by an active site cysteine residue on the substrate aspartyl phosphate. Release of inorganic phosphate is followed by hydride transfer from NADPH to yield the product. The recently described archaeal structure suggests that the two subgroups of aspartate semi-aldehyde dehydrogenase share similar structures and have an identical catalytic mechanism, despite their relatively low sequence identity . Unlike the bacterial enzymes, the archaeal enzyme utilised both NAD and NADP as cofactor. This entry represents aspartate-semialdehyde dehydrogenase from a variety of bacterial species.; GO: 0004073 aspartate-semialdehyde dehydrogenase activity, 0050661 NADP binding, 0009089 lysine biosynthetic process via diaminopimelate.
Probab=100.00 E-value=0 Score=304.82 Aligned_cols=328 Identities=27% Similarity=0.375 Sum_probs=286.6
Q ss_pred EEEEEECCCCHHHHHHHHHH-HHCCCCEEEEEEEECCCCCCEEEECCCCEE-EEEECCHHH-HCCCCEEEECCCHHHHHH
Q ss_conf 17999816677899999999-744998078999974765875600278158-998779436-318847860687589999
Q gi|254780307|r 3 FKVAVVGATGNVGREMLNII-CERGFPISEVVALASERSAGTKVPFGKETI-DVQDVKSYD-FSDTDICLMSAGHAVSSQ 79 (335)
Q Consensus 3 ~kvaIiGatG~vG~el~~lL-~~~~~p~~~l~~~~s~~~~G~~i~~~~~~~-~~~~~~~~~-~~~~Divf~a~p~~~s~~ 79 (335)
T Consensus 1 ~~vGl~GWrGmvGsvl~~rm~ee~df~~i~~vffsts~~G~~~P~~~~~~~~~l~~a~~~~~lk~~d~i~tCqGG~yt~e 80 (367)
T TIGR01745 1 KKVGLVGWRGMVGSVLLQRMQEEKDFDAIKPVFFSTSQLGQKAPSFAKTSANILEDAYDIDALKELDIIITCQGGDYTKE 80 (367)
T ss_pred CCEEEEECCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCHHHHHHHHHHHHHHHHHCCEEEEECCCCCHHH
T ss_conf 91134532036899999986523334444454220133155465300001567765655787742576787158740356
Q ss_pred HHHHHCCCCE--EEEECCCCHHCCCCCCCCCCCHHHHHHCCCCCCC--EECCCCCCCCCCCCCCCHHHHCCCCCCEEEEE
Q ss_conf 9975045651--7996145100112111236410111110333431--21267643222111220011017874114652
Q gi|254780307|r 80 MSPKIAANGC--IVIDNSSAWRYDSDVPLIVPEVNPQTISLASRKN--IIANPNCSTIQLVVALKPLHDLAMIKRVVVTT 155 (335)
Q Consensus 80 ~~~~~~~~g~--~VIDlS~~~R~~~d~p~~lPein~~~i~~~~~~~--~VanPgC~at~~~l~L~PL~~~~~i~~v~v~s 155 (335)
T Consensus 81 iyP~lr~~GW~GyWidaas~lrm~~d~~i~ldPvn~~~i~d~~~~G~~~f~GGnCt~s~~lm~~GGlf~~~lv~W~~~~t 160 (367)
T TIGR01745 81 IYPKLRKAGWKGYWIDAASSLRMKDDAVIILDPVNLDVIKDAVNKGIRTFVGGNCTVSLLLMSLGGLFRDELVEWVSVAT 160 (367)
T ss_pred HHHHHHHCCCCEEEEEHHHCCCCCCCCEEEECCHHHHHHHHHHHHCHHHHCCCHHHHHHHHHHHHHHHHHHHHHHHHHHH
T ss_conf 31788726677035300100000366169975200688998885022442161489899988631355766888888644
Q ss_pred CCCCCCCCCCCCCCHHHHHHHHCCC-------------------------CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
Q ss_conf 1522112321100000000000012-------------------------455444455101374042255323472000
Q gi|254780307|r 156 YQSVSGAGKKGIDELLAQTKAFLAK-------------------------KTIENRVFTKNIAFNVIPHIDVFMDGGSTK 210 (335)
Q Consensus 156 ~~g~SGaG~~~~~eL~~q~~~~~~~-------------------------~~~~~~~~~~~la~n~iP~i~~~~~~g~~~ 210 (335)
T Consensus 161 yqaasG~Ga~hm~ell~~mG~~~~~v~~~l~~~~~~il~i~~kv~~~~r~~~~P~~~f~~Pla~~liPWid~~l~nGqs~ 240 (367)
T TIGR01745 161 YQAASGGGARHMRELLKQMGVLYKEVEEELAKPSSAILEIERKVTKLIRSEELPVENFSVPLAGSLIPWIDKQLDNGQSR 240 (367)
T ss_pred HHHCCCCCHHHHHHHHHHHHHHHHHHHHHHHCCHHHHHHHHHHHHHHHHHCCCCHHHCCCCHHHHHHHHHHHHHCCCCCH
T ss_conf 32014420689999998631899988987521036766677677665420016600126651110001343231057630
Q ss_pred HHHHEEEEEEEEECC--CCCCCCCCEEEEEEECCEEEEEEEECCCCCHHHHHHHHHHCCCC---EEECCCCCCCCCCHHH
Q ss_conf 011011210001023--43221120011211021579876724658789998731006983---8810268899976154
Q gi|254780307|r 211 EEWKVLVETQKILDP--NIKVSCTAARVPVFIGHAESVNIEFEKDISIKDAVAAINKSKGC---IVVDKPDKNEYITPVE 285 (335)
Q Consensus 211 ee~k~~~E~~kil~~--~~~v~~t~~~vPv~rG~~~ti~i~l~~~~~~~~i~~~~~~~~~~---~~~~~~~~~~~~~~~~ 285 (335)
T Consensus 241 eeWkGqae~nkil~t~~~i~~dG~Cvr~G~lrChs~~~~~klk~d~~~~~~e~~~~~~n~W~~~~Pn~~~~t~~~ltP~~ 320 (367)
T TIGR01745 241 EEWKGQAETNKILGTKSTIPVDGLCVRIGALRCHSQALTIKLKKDVSLEEIEEIIRAHNPWVKVVPNEREITLRELTPAA 320 (367)
T ss_pred HHHCCHHHHHHHHCCCCEEEECCEEEEEECEEEEEEEEEEEEECCCCHHHHHHHHHCCCCEEEECCCCHHHHHHHCCCCC
T ss_conf 23133145665523343466454478750200000002344203577788999986469714425770466886337311
Q ss_pred HCCCCCEEEEEEEECCCCCCEEEEEEEECCHHHHHHHHHHHHHHH
Q ss_conf 348973267527763668886999997013022367999999999
Q gi|254780307|r 286 SIRRDLVFVSRIRKDPTLKSGLNLWIVANNLRKGAALNAVQIAEL 330 (335)
Q Consensus 286 ~~g~~~v~Vgrvr~~~~~~~~~~~~~~~DNL~kGAAg~AVq~anl 330 (335)
T Consensus 321 ~tG~l~~~~Gr~rklnmG~~y~saf~~GdqllWGaaePlrrml~~ 365 (367)
T TIGR01745 321 VTGTLDIPVGRLRKLNMGPEYLSAFTVGDQLLWGAAEPLRRMLRI 365 (367)
T ss_pred EECCCCCCCCCEEECCCCHHHHHHHHHHHHHHHCCHHHHHHHHHH
T ss_conf 103200252200000035346544433224443020389999997