>cd05152 MPH2' Macrolide 2'-Phosphotransferase (MPH2'). MPH2' is part of a larger superfamily that includes the catalytic domains of other kinases, such as the typical serine/threonine/tyrosine protein kinases (PKs), RIO kinases, actin-fragmin kinase (AFK), and phosphoinositide 3-kinase (PI3K). MPH2' catalyzes the transfer of the gamma-phosphoryl group from ATP to the 2'-hydroxyl of macrolide antibiotics such as erythromycin, clarithromycin, and azithromycin, among others. Macrolides penetrate the bacterial cell and bind to ribosomes, where it interrupts protein elongation, leading ultimately to the demise of the bacterium. Phosphorylation of macrolides leads to their inactivation. Based on substrate specificity and amino acid sequence, MPH2' is divided into types I and II, encoded by mphA and mphB genes, respectively. MPH2'I inactivates 14-membered ring macrolides while MPH2'II inactivates both 14- and 16-membered ring macrolides. Enzymatic inactivation of macrolides has been reported

Probab=97.68  E-value=8e-05  Score=56.53  Aligned_cols=64  Identities=20%  Similarity=0.209  Sum_probs=47.8

Q ss_pred             HHCCEECCCCCCCEEEEECCCCE-EEEECCHHEECCHHHHHHHHHHHHHHHCCCHHHHHHHHHHHHC
Q ss_conf             74486617878622898028953-5743403121698999999976699971872789999998412
Q gi|254780623|r  279 LRDGFFHADLHPGNLFVDSKGYI-VAVDMGITGRLSKRERRFLAEILYGFISRDYQRVADVHFEAGY  344 (517)
Q Consensus       279 ~~~GfFHaDPHpGNi~v~~dg~i-~~lDfG~vg~l~~~~r~~l~~l~~a~~~~D~~~~~~~l~~lg~  344 (517)
T Consensus       183 ~~~~lvHGDL~~~hiLvd~~~rvtGVIDW~da~VGDPA~--Dfa~l~~~~g~~~l~~~l~~Y~~agg  247 (276)
T cd05152         183 RHTVLVHGDLHPGHILIDEDARVTGLIDWTEAKVGDPAR--DFVLHYRIFGEAGLERLIDAYEAAGG  247 (276)
T ss_pred             CCCEEEECCCCCCCEEECCCCCEEEEECCCCCCCCCHHH--HHHHHHHHCCHHHHHHHHHHHHHCCC
T ss_conf             886346357557707984898589984430147788489--99999987288999999999997589