HHsearch alignment for GI: 254780801 and conserved domain: TIGR00044
>TIGR00044 TIGR00044 conserved hypothetical protein TIGR00044; InterPro: IPR011078 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 . Proteins in this entry occur in archaea, bacteria and eukaryotes. They are encoded by genes which are often co-transcribed with proline biosysnthesis genes , although their function in vivo has not yet been demonstrated. The structure of the yeast protein YBL036C (P38197 from SWISSPROT) has been determined to a resolution of 2.0 A . Similar in structure to the N-terminal domains of alanine racemase and ornithine decarboxylase, it forms a TIM barrel fold which begins with a long N-terminal helix, rather than the classical beta strand found at the beginning of most other TIM barrels. Unlike alanine racemase and ornithine decarboxylase, which are two-domain dimeric proteins, the yeast protein is a single domain monomer. A pyridoxal 5'-phosphate cofactor is covalently bound towards the C-terminal end of the barrel, which is the usual active site in TIM-barrel folds. Some racemase activity was observed for this protein and it was suggested by the authors that it may function as a general racemase ..
Probab=100.00 E-value=0 Score=510.15 Aligned_cols=217 Identities=36% Similarity=0.472 Sum_probs=204.3
Q ss_pred CHHHHHHHHHHHHH-------------HHHHHCCCCHHHCEEEEECCCCCHHHHHHHHHCCCCCCCCCCCHHHHHHHHCC
Q ss_conf 98999999999999-------------99998198964418998718999999999997298100012100011110000
Q gi|254780801|r 2 SLGNKLQVFKQKIE-------------NSAILAKRPKDSVSLVAVSKMVDSKKIRVALSCGQVIFAENKLQEAKKKWIPL 68 (222)
Q Consensus 2 ~i~~nl~~i~~~I~-------------~a~~~~gR~~~~v~LiaVtK~~~~e~I~~~~~~G~~~fGENrvQE~~~K~~~l 68 (222)
T Consensus 3 ~~~~~~~~~~tki~~~~~~~~~vvnaea~~~~~n~n~~~v~LlAVSK~Kp~saI~~~Y~aG~R~FGEN~VQE~~~Ki~~l 82 (250)
T TIGR00044 3 DISHYLEAIKTKIEKAREAVREVVNAEAANVRVNRNPSKVKLLAVSKTKPASAIQAAYDAGQRAFGENYVQELVEKIKLL 82 (250)
T ss_pred CHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCEEEEEEECCCCHHHHHHHHHCCCCHHCCHHHHHHHHHHHHH
T ss_conf 46255899999999999999999857666542068867047888515676889999974584120000355468999860
Q ss_pred CCCC-C-CCEEEECCCCCCHHHHHCCCCHHCCCCCCCCHHHHHHHHHHHHCC---CEEEEEEEECCCCCCCCCCCCCHHH
Q ss_conf 0125-8-730230244320013201110000122222001344333333114---3036889700466563465700012
Q gi|254780801|r 69 RKEW-D-VQLRFIGSLQSNKVSEIVSLFDVIETVSREKTASLLSLEMIKQSR---FLPVYIQVNTGYEIQKSGIMPNQTK 143 (222)
Q Consensus 69 ~~~~-~-i~wHfIG~LQsNKvk~i~~~~~~Ihsvds~~~a~~L~~~~~~~~~---~~~vliQVN~~~e~~K~G~~p~el~ 143 (222)
T Consensus 83 ~~~~~~G~~w~~ig~~~~~K~~~v~~~f~~~ht~D~LkiA~kLn~~r~~~~~DCnpl~~L~QIn~s~Ee~KSG~~~EE~~ 162 (250)
T TIGR00044 83 EDLGVKGLEWHFIGPLQSNKARLVVENFDWVHTIDSLKIAKKLNEQREKLQPDCNPLNVLLQINISDEESKSGIQPEELL 162 (250)
T ss_pred HCCCCCEEHHHCCCCCHHHHHHHHCCCHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCEEEEEEECCCCCCCCCCHHHHH
T ss_conf 21675611200013002345665215605788789899987798876874777567410245321543465578889999
Q ss_pred HHHHH--H-HCCCCCCHHHHEECCCCCCCC---HHHHHHHHHHHHHCC-------CCEECCCCCHHHHHHHHHCCCEEEE
Q ss_conf 22344--3-104311001110115433452---058999999988758-------9472247773489999808988997
Q gi|254780801|r 144 DFVIL--C-RQKYQLNVEGLMCIPPAMGNP---KPHFYLLSEIARECK-------LTKLSMGMTRDFELAIASGATSVRI 210 (222)
Q Consensus 144 ~l~~~--i-~~~~~L~i~GLMti~p~~~d~---~~~F~~l~~l~~~~~-------~~~LSmGMS~D~~~Ai~~Gst~vRi 210 (222)
T Consensus 163 ~~~~~ff~SE~lk~LkL~GLM~I~a~~~~~~~~~~~f~~~~~l~~~~K~~~~~~~~d~LSMGMSdD~~~AIa~G~t~vRI 242 (250)
T TIGR00044 163 ELASQFFLSEELKHLKLRGLMTIGAPTDSEEDQEESFREMKKLFEQIKQASPFSLIDTLSMGMSDDFEEAIAAGATMVRI 242 (250)
T ss_pred HHHHHHHHHHHCHHHHHCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHCCCCCCHHCCCCCCHHHHHHHHHHHHHHHH
T ss_conf 89898888761212231033347988888888999999999999986553114531010257754379999860157778
Q ss_pred CHHHCCCC
Q ss_conf 11323899
Q gi|254780801|r 211 GSGIFGER 218 (222)
Q Consensus 211 Gs~iFG~R 218 (222)
T Consensus 243 GT~iFGaR 250 (250)
T TIGR00044 243 GTAIFGAR 250 (250)
T ss_pred HHHHHCCC
T ss_conf 76631479