HHsearch alignment for GI: 254780371 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=97.21 E-value=0.00063 Score=46.76 Aligned_cols=169 Identities=20% Similarity=0.252 Sum_probs=113.4
Q ss_pred CEEEEEE-ECCCCHHHHHHHHHCCCC-EEEECHHHHH---HHHH-CCCCCCCEEECCCCCCCHHHHHHHHCCCCCCCCCC
Q ss_conf 7899964-107999999999973992-8986899986---5221-25784312444775420124444206872333322
Q gi|254780371|r 53 TMVCYAL-KANSNQAVIKTLAHLGSG-LDIVSEGELR---RALA-APVPAERIVFSGVGKTIDEIDLALQSGIYCFNVES 126 (431)
Q Consensus 53 ~~i~yAv-KaN~~~~il~~l~~~G~g-~dv~S~~El~---~al~-~G~~~~~Ii~~g~~k~~~~l~~ai~~gv~~i~vDs 126 (431)
T Consensus 42 v~L-lAVSK~Kp~saI-~~~Y~aG~R~FGEN~VQE~~~Ki~~l~~~~~~G~~w~~ig~~~~~K~~~v~~~f~-~~ht~D~ 118 (250)
T TIGR00044 42 VKL-LAVSKTKPASAI-QAAYDAGQRAFGENYVQELVEKIKLLEDLGVKGLEWHFIGPLQSNKARLVVENFD-WVHTIDS 118 (250)
T ss_pred EEE-EEEECCCCHHHH-HHHHHCCCCHHCCHHHHHHHHHHHHHHCCCCCEEHHHCCCCCHHHHHHHHCCCHH-HHHHHHH
T ss_conf 478-885156768899-9997458412000035546899986021675611200013002345665215605-7887898
Q ss_pred CHHHHHHHHHHCCCCC---CEEEEEEEECCCCCCCCCCCCCCCCCCCCCCCCCCCHHHHHH--H-HHCCCCCHHHHHHHH
Q ss_conf 0246768774113344---215899872377867443332233444568871111345777--6-415632200233556
Q gi|254780371|r 127 ESELKTLNQRAVSLGK---KAPIAFRVNPDINANTHKKISTGKKEDKFGIPIHQIHSLYAY--A-STLPGVKISGVDMHI 200 (431)
Q Consensus 127 ~~el~~l~~~a~~~~~---~~~I~lRinp~~~~~~~~~~~tg~~~sKFGi~~~~~~~~~~~--~-~~~~~l~l~GlH~H~ 200 (431)
T Consensus 119 LkiA~kLn~~r~~~~~DCnpl~~L~QIn~------------s~Ee~KSG~~~EE~~~~~~~ff~SE~lk~LkL~GLM~-I 185 (250)
T TIGR00044 119 LKIAKKLNEQREKLQPDCNPLNVLLQINI------------SDEESKSGIQPEELLELASQFFLSEELKHLKLRGLMT-I 185 (250)
T ss_pred HHHHHHHHHHHHHHCCCCCCCCEEEEEEE------------CCCCCCCCCCHHHHHHHHHHHHHHHHCHHHHHCCCCC-C
T ss_conf 99987798876874777567410245321------------5434655788899998989888876121223103334-7
Q ss_pred HHCCCCCHHHHHHHHHHHHHHHHHHCCCC--CCCEEEEC
Q ss_conf 41564420489999999988765310266--65268806
Q gi|254780371|r 201 GSQIDQIESFHKAFKLLRDLTQQLRSNGH--NIQHIDVG 237 (431)
Q Consensus 201 GS~~~~~~~~~~~~~~~~~~~~~l~~~g~--~~~~ldiG 237 (431)
T Consensus 186 ~a~~~~~~~~~~~f~~~~~l~~~~K~~~~~~~~d~LSMG 224 (250)
T TIGR00044 186 GAPTDSEEDQEESFREMKKLFEQIKQASPFSLIDTLSMG 224 (250)
T ss_pred CCCCCCHHHHHHHHHHHHHHHHHHHHHCCCCCCHHCCCC
T ss_conf 988888888999999999999986553114531010257