>TIGR00656 asp_kin_monofn asparate kinase, monofunctional class; InterPro: IPR005260 Aspartate kinase catalyzes the first step in the biosynthesis of Lys (via its precursor diaminopimelate), Met, and Thr. In E. coli, a distinct isozyme is inhibited by each of these three amino acid end products . The Met-sensitive (I) and Thr-sensitive (II) forms are bifunctional enzymes fused to homoserine dehydrogenase, which catalyses the next step in the biosynthesis of these amino acids. Inn contrast, the Lys-sensitive form (III) is a monofunctional enzyme; homoserine dehydrogenase is not part of the Lys biosynthetic pathway. This entry represents a subclass of aspartate kinases that are mostly Lys-sensitive and are not fused to homoserine dehydrogenase. The E. coli enzyme is a homodimer, while the Bacillus and Corynebacterium enzymes are alpha 2/beta 2 heterotetramers, where the beta subunit is translated from an in-phase alternative initiator at Met-246 , . The protein slr0657 from Synechocystis PCC6803 is extended by a duplication of the C-terminal region corresponding to the beta chain. Incorporation of a second copy of the C-terminal domain may be quite common in this subgroup of aspartokinases. ; GO: 0004072 aspartate kinase activity, 0009058 biosynthetic process.

Probab=100.00 E-value=0 Score=579.90 Aligned_cols=403 Identities=43% Similarity=0.610 Sum_probs=374.4 Q ss_pred CCEEEEEECCCCCCCHHHHHHHHHHHHHHHHCCCCEEEEEECCCCHHHHHHHHHHHHH---------------------- Q ss_conf 9669996085845888999999999999996799889998068730489999999861---------------------- Q gi|254780873|r 1 MARIVMKFGGTSVANIDCIRSAALHVKREVDRGQEVAMVVSAMSGETDRLAELCRQVT---------------------- 58 (411) Q Consensus 1 M~~iV~KfGGtSv~~~~~i~~v~~~i~~~~~~g~~~ivVvSA~~g~Td~L~~l~~~~~---------------------- 58 (411) T Consensus 1 ~~~~v~kfGGt~~~~~~~~~~~~~~~~~~~~~g~~~~vv~sa~~~~td~l~~~~~~~~pg~~~~~~~~~~~~~~~~~~~~ 80 (480) T TIGR00656 1 MELIVQKFGGTSVGSGERIKNAARIVLKEKEEGHKVVVVVSAMGGVTDALLSLAEGLDPGEGGAKGGDLLGILRELGLPL 80 (480) T ss_pred CCEEEEECCCCCCCCHHHHHHHHHHHHHHHHCCCEEEEEEECCCCCCHHHHHHHHHHCCCCCHHHHHHHHHHHHHHHHHH T ss_conf 94478742672125426788888788877640771489986156520246655432023221135678899999864333 Q ss_pred -------------------------CCCCHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCC--CCCCCCCCCCCCCCC Q ss_conf -------------------------48998899999983129999999999984399863567--332455121335520 Q gi|254780873|r 59 -------------------------SIDNARERDVVISTGEQVSSGLMVLALQSLGIQAISLQ--GWQIPIMTDSLHGMA 111 (411) Q Consensus 59 -------------------------~~~~~~~~d~i~s~GE~~s~~l~a~~l~~~G~~a~~l~--~~~~~i~t~~~~~~a 111 (411) T Consensus 81 ~~p~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~d~~~s~Ge~~s~~~~~~~l~~~g~~~~~~~p~g~~~g~~t~~~~~~a 160 (480) T TIGR00656 81 RYPEAISDEILELELNKLLLAAAALGEWTPRERDLLVSYGELLSSALLSGALRDLGVKAIWLDPFGGEAGILTDDNFGNA 160 (480) T ss_pred HCHHHHHHHHHHHHHHHHHHHHHHHHHCCHHHHHHHHHHHHHHHHHHHHHHHHHCCCCEEEECCCCCCCCEEECCCCCCC T ss_conf 11001355678877777888778864217557777764112578999999998527621441434562222324545552 Q ss_pred CCCCCCC-----CCHHHHHHHCCEEEEECCCCCCCCCCEEEECCCCCCHHHHHHHHHHCHHHHHHHCCHHHHEECCCCCC Q ss_conf 0012362-----10033431068058603433355684244306862428999998847345565346144024584212 Q gi|254780873|r 112 RICRVDE-----KKIVTHLKKKQVVVITGFQGLSHDNSVTTLGRGGSDTSAVAIAAAIKADRCDIYTDVCGIYTTDPRIE 186 (411) Q Consensus 112 ~~~~~~~-----~~l~~~l~~~~v~v~~Gf~g~~~~g~~ttlgRGGSD~tA~~ia~~l~A~~~~i~tdV~Gi~taDPr~v 186 (411) T Consensus 161 ~~~~~~~~~~~~~~l~~~l~~g~~~~~~Gf~G~~~~g~~ttlGrGGsd~~a~~l~~~l~a~~~~~~tdv~G~~~~dPr~~ 240 (480) T TIGR00656 161 KIDELATEGLAAERLLPLLEEGIIPVVAGFQGATEEGDTTTLGRGGSDLTAALLGAALKADRVDIYTDVPGVYTTDPRVV 240 (480) T ss_pred EEEHHHHHHHHHHHHHHHHHCCCEEEEECCCCCCCCCCEEECCCCCCHHHHHHHHHHCCCCEEEEEECCCCCCCCCCCCC T ss_conf 00022246778888888875497589723335776764443047862378999875217763799744785012686424 Q ss_pred CCCCEECCCCHHHHHHHHHCCCCCHHHHHHHHH-HHCCCEEEEECCCCCCCCCCCCCCCCCC----CCCCCCCC-----C Q ss_conf 344110567999999988403110137887643-3138526761123777776543545454----21012223-----1 Q gi|254780873|r 187 PKAHLMKKISFEEMLEMSSLGAKVMQVRSVELA-MLYKMCLFVRSSFEDHGQQEQLGTLICS----GEDIMEKK-----V 256 (411) Q Consensus 187 ~~a~~i~~lsy~Ea~eLa~~Gakvlhp~~~~~~-~~~~ipi~i~ntf~~~~~~~~~GT~I~~----~~~~~~~~-----~ 256 (411) T Consensus 241 ~~a~~~~~~~~~e~~~la~~Ga~~l~p~~~~~~d~~~~~~~~~~~~~~~~----~~gt~~~~~~d~~~~~~~~~d~~~~~ 316 (480) T TIGR00656 241 EGAKKLPKISYEEALELATLGAKVLHPRTLEPADKEGGVPIEVRSSFDPE----AEGTLITNEKDFHGSSMEGPDVFEPL 316 (480) T ss_pred CCCCCCCCCCHHHHHHHHHCCCHHCCCCCCCCCCCCCCCCEEEEECCCCC----CCCCEECCCCCCCCCCCCCCCHHHHH T ss_conf 56432233238999999752501203210020110136635886245777----67414304433345666674023321 Q ss_pred CCCCCCCCC-CCHHCCC--CCCCCCCCCCHHHHHHHHCCCCEECCCCCCCCCCCCCCCEEECCHHHHHHHHHHHHHHHHH Q ss_conf 011123466-2000127--7500048410001455412850111234432222333101212302477668878988860 Q gi|254780873|r 257 ITGIAYTKD-EAQISLR--RLRDHPGISASIFSPLAEAHINIDMIIQNVSEDGQYVDITFTTPSSSLEKALAVLSDNKEN 333 (411) Q Consensus 257 Vk~Is~~~~-i~~Iti~--~~~~~~g~~a~If~~La~~~I~VdmI~qs~s~~~~~~~Isf~i~~~d~~~~~~~L~~~~~~ 333 (411) T Consensus 317 ~~~~~~~~~p~~~~~~~g~~~~~~~g~~~~~~~~la~~~~~~~~~~~~~~~d--~~~~~~~~~~~~~~~~~~~l~~~~~~ 394 (480) T TIGR00656 317 VKGIALSKNPVARLTVPGPGMLGKPGFLAELFGALAERGINVDLISQTPSED--KTSISLTVDEEDADEAVRALKDESGA 394 (480) T ss_pred HHHEEECCCCEEEEEECCCCCCCCCHHHHHHHHHHHHCCCEEEEEECCCCCC--CCEEEEEEECCCCHHHHHHHHHHHHH T ss_conf 1101314785258886054323554058899988741574289985067766--33058997246606899988765433 Q ss_pred CC--------CCEEEEECCEEEEEEECCCCCCCCCHHHHHHHHHHHCCCEEEEEE--ECCCEEEEEECHHHHHHHHHHHH Q ss_conf 59--------615897489169999667866785579999999986798299997--07848999970889999999999 Q gi|254780873|r 334 IG--------YDVIQHEDNLVKISAIGIGMQSYAGVASAFFLCLAEKGINIKAIT--TSEIKISVLIDSAYTELAVRSLH 403 (411) Q Consensus 334 ~~--------~~~I~~~~~~a~ISvVG~gm~~~~Giaakif~aL~~~~InI~~is--sSe~~IS~VV~~~d~~~Av~~LH 403 (411) T Consensus 395 ~~~~~l~~~~~~~~~~~~~~~~~~~~g~g~~~~~G~~~~~~~~~~~~~~~~~~~~~g~~~~~~~~~~~~~d~~~~~~~lh 474 (480) T TIGR00656 395 AGLKFLDNNLLDRLEVEEGLAKVSIVGAGLVGAPGVASEIFSALEEKNINILMIGQGSSETSISVLVDEKDAEKAVRLLH 474 (480) T ss_pred HHHHHHCCCCCCCEECCCCCEEEEEECCCCCCCCCCHHHHHHHHCCCCCCEEEEECCCCCCEEEEEEECHHHHHHHHHHH T ss_conf 21122023232100003671078874376212565035665432016850678525765404799960311689999988 Q ss_pred HHCCCC Q ss_conf 870977 Q gi|254780873|r 404 SCYGLD 409 (411) Q Consensus 404 ~~F~ld 409 (411) T Consensus 475 ~~~~~~ 480 (480) T TIGR00656 475 EVFELS 480 (480) T ss_pred HHHCCC T ss_conf 764059

HHsearch alignment for GI: 254780873 and conserved domain: TIGR00656