>cd03260 ABC_PstB_phosphate_transporter Phosphate uptake is of fundamental importance in the cell physiology of bacteria because phosphate is required as a nutrient. The Pst system of E. coli comprises four distinct subunits encoded by the pstS, pstA, pstB, and pstC genes. The PstS protein is a phosphate-binding protein located in the periplasmic space. P stA and PstC are hydrophobic and they form the transmembrane portion of the Pst system. PstB is the catalytic subunit, which couples the energy of ATP hydrolysis to the import of phosphate across cellular membranes through the Pst system, often referred as ABC-protein. PstB belongs to one of the largest superfamilies of proteins characterized by a highly conserved adenosine triphosphate (ATP) binding cassette (ABC), which is also a nucleotide binding domain (NBD).

Probab=91.50 E-value=0.33 Score=27.25 Aligned_cols=151 Identities=18% Similarity=0.258 Sum_probs=71.9 Q ss_pred CCHHHCCCEEEEECCCCCHHHHHHHHHHHHHHH--CCHHHEEEEEE--CCCCCE---------ECCCCCCCCEEEEEEEC Q ss_conf 120114846997078753447999999999985--68011079997--234210---------00125775200004444 Q gi|254780606|r 407 ADLANMPHILVAGTTGSGKSVAINTMIMSLLYR--LRPDECRMIMV--DPKMLE---------LSVYDGIPHLLTPVVTN 473 (744) Q Consensus 407 ~dl~~~PH~lvaG~TgsGKS~~l~~~i~sl~~~--~~p~~~~~~li--D~k~~~---------~~~~~~~ph~~~~v~~~ 473 (744) T Consensus 21 l~i~~Ge~~~iiG~SGsGKSTll~-~i~gL~~~~~~~p~~G~I~~~g~~i~~~~~~~~~~R~~ig~VfQ~~~lf~--~TV 97 (227) T cd03260 21 LDIPKGEITALIGPSGCGKSTLLR-LLNRLNDLIPGAPDEGEVLLDGKDIYDLDVDVLELRRRVGMVFQKPNPFP--GSI 97 (227) T ss_pred EEECCCCEEEEECCCCCCHHHHHH-HHHHHHHCCCCCCCCEEEEECCEECCCCCCCHHHHHHCCEEECCCCCCCC--CCH T ss_conf 788799899999999981999999-99744502689981469999999998899587889628268764776677--809 Q ss_pred HHHHHHHHHH----HHHHHHHH-HHHHHHCCCCC----------HH-HHHHHHHHHHCCCCCCCCCCCCCCCEEEEEHHH Q ss_conf 1787689999----99866769-99999807786----------79-999988642026776665432338679998445 Q gi|254780606|r 474 PKKAVMALKW----AVREMEER-YRKMSHLSVRN----------IK-SYNERISTMYGEKPQGCGDDMRPMPYIVIIVDE 537 (744) Q Consensus 474 ~~~~~~~l~~----~~~em~~r-~~~~~~~~~~~----------i~-~~n~~~~~~~~~~~~~~~~~~~~~p~ivvviDE 537 (744) T Consensus 98 ~eNi~~~l~~~~~~~~~~~~~~v~~~L~~vgL~~~~~~~~~p~~LSGGq~QRvaIArAL---------~~~P~i-LllDE 167 (227) T cd03260 98 YDNVAYGLRLHGIKLKEELDERVEEALRKAALWDEVKDRLHALGLSGGQQQRLCLARAL---------ANEPEV-LLLDE 167 (227) T ss_pred HHHHHHHHHHCCCCCHHHHHHHHHHHHHHCCCCHHHHCCCCCCCCCHHHHHHHHHHHHH---------HCCCCE-EEECC T ss_conf 99999999983899999999999999987799758844568022899999999999998---------359999-99689 Q ss_pred H-HHHHHHCCHHHHHHHHHHHHHHHCCEEEEEEEECCCC Q ss_conf 6-8767531035899999999964201358999851654 Q gi|254780606|r 538 M-ADLMMVAGKEIEGAIQRLAQMARAAGIHLIMATQRPS 575 (744) Q Consensus 538 ~-a~l~~~~~~~~e~~~~~la~~~ra~GihlilatQrp~ 575 (744) T Consensus 168 PTs~LD~~~~~~i~~li~~l~~~-----~Tii~vTHdl~ 201 (227) T cd03260 168 PTSALDPISTAKIEELIAELKKE-----YTIVIVTHNMQ 201 (227) T ss_pred CCCCCCHHHHHHHHHHHHHHHHC-----CEEEEEECCHH T ss_conf 87657989999999999999668-----88999936999

HHsearch alignment for GI: 254780606 and conserved domain: cd03260