HHsearch alignment for GI: 254780137 and conserved domain: TIGR00557

>TIGR00557 pdxA 4-hydroxythreonine-4-phosphate dehydrogenase; InterPro: IPR005255 Pyridoxal phosphate is the active form of vitamin B6 (pyridoxine or pyridoxal). PLP is a versatile catalyst, acting as a coenzyme in a multitude of reactions, including decarboxylation, deamination and transamination , , . PLP-dependent enzymes are primarily involved in the biosynthesis of amino acids and amino acid-derived metabolites, but they are also found in the biosynthetic pathways of amino sugars and in the synthesis or catabolism of neurotransmitters; pyridoxal phosphate can also inhibit DNA polymerases and several steroid receptors . Inadequate levels of pyridoxal phosphate in the brain can cause neurological dysfunction, particularly epilepsy . PLP enzymes exist in their resting state as a Schiff base, the aldehyde group of PLP forming a linkage with the epsilon-amino group of an active site lysine residue on the enzyme. The alpha-amino group of the substrate displaces the lysine epsilon-amino group, in the process forming a new aldimine with the substrate. This aldimine is the common central intermediate for all PLP-catalyzed reactions, enzymatic and non-enzymatic . In Escherichia coli, the pdx genes involved in vitamin B6 have been characterised , , . This entry represents 4-hydroxythreonine-4-phosphate dehydrogenase (PdxA, 1.1.1.262 from EC). PdxA takes part in vitamin B6 biosynthesis, forming pyridoxine 5'-phosphate from 4-(phosphohydroxy)-L-threonine and 1-deoxy-D-xylulose-5-phosphate.; GO: 0050570 4-hydroxythreonine-4-phosphate dehydrogenase activity, 0051287 NAD binding, 0008615 pyridoxine biosynthetic process.
Probab=93.48  E-value=0.6  Score=25.57  Aligned_cols=270  Identities=12%  Similarity=0.138  Sum_probs=161.1

Q ss_pred             CEEEEECCCC-----CHHHHHHHHHHHCCCEEEEEECCHHHHHHHHHHCCCCCCCCCCCEEECCCHHHHHHHHHHHHHHH
Q ss_conf             4699824774-----04679999998527508999559899999999849876654684230620255678999999998
Q gi|254780137|r  458 KRILFSAGED-----ERVLRATQILIKENIARPVLIGSLLTIQDNIRRHDLQIIATKDFDVIDLNNKQSLKDYVDSYRSL  532 (779)
Q Consensus       458 KRIVfaEgeD-----~rVLrAA~~~~eeGia~PILVG~~e~I~~~~~~~gL~l~~~~dieIidp~~~~~~~~ya~~l~~~  532 (779)
T Consensus         2 kki~It~GdpaGiGpeLilk~~k~~~~~--~e~v~~~d~~lL~~a~~llg~~l~-~k~~~~~~~A~~~tag~~~~~p~~L   78 (325)
T TIGR00557         2 KKIAITLGDPAGIGPELILKLAKRVEEK--VELVVLADEKLLEEAAKLLGLKLE-LKKLEKVEEAKERTAGVLLLAPVAL   78 (325)
T ss_pred             CEEEEECCCCCCCCHHHHHHHHHHHHHC--CCEEEECCHHHHHHHHHHHCCCCC-CCCCCCCCCCHHHHHHHHHHHHHHH
T ss_conf             5478616875561688999987775103--315886567899999986177210-3215877531045677787643443


Q ss_pred             HHH--CC-CCHHHHHHHHHHCHHHHHHHHHHCCCCCEEECCCCCCCCHHHHHHHHHHCCC------CCCCCCEEEEECCC
Q ss_conf             763--79-9989999998625356789998657210010044677740467777763068------76685012100135
Q gi|254780137|r  533 SAE--KG-ISLDSIYDLLRSNTTLLGSLALKRGEGDGMICMCDSESGYNSHLTDIHKIIG------MGLGISHYSAMSMC  603 (779)
Q Consensus       533 ~~R--KG-~~~~~A~~~vr~d~~~faa~MV~~G~AD~lI~G~~~t~~y~~~lr~~~~vIG------~~~g~~~vs~~~il  603 (779)
T Consensus        79 ~~pvt~g~vs~~sG~y~ve--~larAc~~a~~ge~~gi~T~PinK~~~---~~Agipf~GhTeFl~~rs~~k~~--~MMl  151 (325)
T TIGR00557        79 KAPVTAGKVSVESGKYAVE--SLARACEDALSGEVDGILTLPINKLVI---KKAGIPFVGHTEFLKKRSKAKKV--VMML  151 (325)
T ss_pred             HCCCCCCCHHHHCCHHHHH--HHHHHHHHHHCCCCCEEEECCHHHHHH---HCCCCCCCCCHHHHHHHHCCCCE--EEEE
T ss_conf             0544466100101268999--999998764125711565065115788---60689744350899985248627--8761


Q ss_pred             CCCC-CEEEEECC----CCCCCCCHHHHHHHHHHHHHHHH-HCCC-CCCEEEEEEC----CCCCCCCCCHHHHHHHHHHH
Q ss_conf             5777-34999747----36889898899999999999999-8189-9729999702----55788897789999999999
Q gi|254780137|r  604 IVRD-NFLFFTDT----HVSAEPSAMEIADSTILASQAIC-SLGM-RPKVSVLFHS----NSGSHCIKSSLKMRDSFEKI  672 (779)
Q Consensus       604 ~~~~-~~lFiaDt----aVNi~PtaEqLAdIa~~aa~~ar-~lGi-ePkVAlLS~S----nfGs~~~~s~~kvr~A~eil  672 (779)
T Consensus       152 ~~ekL~V~L~ttH~PL~dv~~~i~~~~l~k~~~~~~k~~~~KfG~~EP~i~VcGlNPHAGE~G~~G~EEie~Iipa~~e~  231 (325)
T TIGR00557       152 ASEKLKVALLTTHVPLKDVADLIKKEALLKVVLLLRKELREKFGKAEPLIKVCGLNPHAGEEGELGREEIEEIIPAVEEA  231 (325)
T ss_pred             CCCCCEEEEEECCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCEEEECCCCCCCCCCCCCCHHHHHHHHHHHHH
T ss_conf             15420245421577756576440388999999999898886532117714773368877888998851356789999986


Q ss_pred             HHHCCCCEEECCCCHHHHCCHHHHHHCCCCCCCCCCCCEEECCCHHHHHHHHHHHHHHCCCEEECHHHCCCCCCEEECCC
Q ss_conf             87379959986730465329898963089987777777788189128889999999865986871443145898798787
Q gi|254780137|r  673 CELSKNLEVDAIVQEEVCLSEIFCDKDVPNTSSSQDAQLLVFPNIDSANIALEMAKSVTNGLHIGTLLLGAALPVHIVPS  752 (779)
Q Consensus       673 ~~~~pd~~VDGemq~D~AL~~~ia~~K~p~S~laG~ANVLIfPnLeAaNI~yKllq~lgga~aiGPIL~G~~kPV~ilsr  752 (779)
T Consensus       232 ~qt~~g~k~~GPLpaD~aF~p~~~~----------~~d~~l~MyHD~GL~plK~l-~FdegvN-----~tLglPfiRTS~  295 (325)
T TIGR00557       232 KQTKEGIKLVGPLPADSAFAPKKRE----------IADVYLAMYHDQGLAPLKAL-AFDEGVN-----VTLGLPFIRTSV  295 (325)
T ss_pred             HHHCCCEEEECCCCCCCCCCCCCCC----------CCCEEEEEECCCCCHHHHHH-HCCCCEE-----EEECCCHHCCCC
T ss_conf             5440845643788844134787545----------78668983256660677764-3477146-----640876101378


Q ss_pred             C
Q ss_conf             6
Q gi|254780137|r  753 S  753 (779)
Q Consensus       753 ~  753 (779)
T Consensus       296 D  296 (325)
T TIGR00557       296 D  296 (325)
T ss_pred             C
T ss_conf             6