HHsearch alignment for GI: 254781088 and conserved domain: TIGR01131
>TIGR01131 ATP_synt_6_or_A ATP synthase F0, A subunit; InterPro: IPR000568 ATPases (or ATP synthases) are membrane-bound enzyme complexes/ion transporters that combine ATP synthesis and/or hydrolysis with the transport of protons across a membrane. ATPases can harness the energy from a proton gradient, using the flux of ions across the membrane via the ATPase proton channel to drive the synthesis of ATP. Some ATPases work in reverse, using the energy from the hydrolysis of ATP to create a proton gradient. There are different types of ATPases, which can differ in function (ATP synthesis and/or hydrolysis), structure (F-, V- and A-ATPases contain rotary motors) and in the type of ions they transport , . F-ATPases (F1F0-ATPases) in mitochondria, chloroplasts and bacterial plasma membranes are the prime producers of ATP, using the proton gradient generated by oxidative phosphorylation (mitochondria) or photosynthesis (chloroplasts). V-ATPases (V1V0-ATPases) are primarily found in eukaryotic vacuoles, catalysing ATP hydrolysis to transport solutes and lower pH in organelles. A-ATPases (A1A0-ATPases) are found in Archaea and function like F-ATPases. P-ATPases (E1E2-ATPases) are found in bacteria and in eukaryotic plasma membranes and organelles, and function to transport a variety of different ions across membranes. E-ATPases are cell-surface enzymes that hydrolyse a range of NTPs, including extracellular ATP. F-ATPases (also known as F1F0-ATPase, or H(+)-transporting two-sector ATPase) (3.6.3.14 from EC) are composed of two linked complexes: the F1 ATPase complex is the catalytic core and is composed of 5 subunits (alpha, beta, gamma, delta, epsilon), while the F0 ATPase complex is the membrane-embedded proton channel that is composed of at least 3 subunits (A-C), nine in mitochondria (A-G, F6, F8). Both the F1 and F0 complexes are rotary motors that are coupled back-to-back. In the F1 complex, the central gamma subunit forms the rotor inside the cylinder made of the alpha(3)beta(3) subunits, while in the F0 complex, the ring-shaped C subunits forms the rotor. The two rotors rotate in opposite directions, but the F0 rotor is usually stronger, using the force from the proton gradient to push the F1 rotor in reverse in order to drive ATP synthesis . These ATPases can also work in reverse to hydrolyse ATP to create a proton gradient. This entry represents subunit A (or subunit 6) found in the F0 complex of F-ATPases. This subunit is a key component of the proton channel, and may play a direct role in the translocation of protons across the membrane. Catalysis in the F1 complex depends upon the rotation of the central stalk and F0 c-ring, which in turn is driven by the flux of protons through the membrane via the interface between the F0 c-ring and subunit A. The peripheral stalk links subunit A to the external surface of the F1 domain, and is thought to act as a stator to counter the tendency of subunit A and the F1 alpha(3)beta(3) catalytic portion to rotate with the central rotary element . More information about this protein can be found at Protein of the Month: ATP Synthases . ; GO: 0016820 hydrolase activity acting on acid anhydrides catalyzing transmembrane movement of substances, 0015992 proton transport, 0016020 membrane, 0016469 proton-transporting two-sector ATPase complex.
Probab=100.00 E-value=0 Score=256.02 Aligned_cols=231 Identities=43% Similarity=0.747 Sum_probs=196.9
Q ss_pred CHHHHCCCCEEEEEECCEEEECCHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCHHHHHHHHHHHHHHHHHHCCCCCCCC
Q ss_conf 44673124500014248346410899999999999999999831465537886403567788756787752057667530
Q gi|254781088|r 5 PMSQFIVQKIVPIQVQGFDLSFTNSSLAMLVSLLVIFIFAFFAVSNCRVVPTRLQSFFEIIYQFIMSTLCDSAGNQSKNF 84 (250)
Q Consensus 5 P~~~f~~~~l~~~~i~~~~~~it~~~l~~~i~~~il~~~~~~~~~~~~~vP~~~q~~~E~i~~~i~~~v~~~~g~~~~~~ 84 (250)
T Consensus 1 ~~~~f~~~~~~~~--~~~~~~~~~~~~~~~~~~~~~~~-----~~~~~~~~~~~~~~~~~~~~~~-~~~~~~~~~~~--~ 70 (234)
T TIGR01131 1 PFSQFDPSPLFGL--LGLDLSLTLLSLYLLLSLLLLLI-----LSSLWLIPSRWQSLLESLYEFV-SLVKSQIGGKG--F 70 (234)
T ss_pred CCCCHHHHHHHHH--HHHHHHHHHHHHHHHHHHHHHHH-----HHHHHHCCCHHHHHHHHHHHHH-HHHHHHCCCCH--H
T ss_conf 9641100245555--43455556899999999999999-----8887740304789999999999-99875215403--7
Q ss_pred HHHHHHHHHHHHCCCCCCCHHHHHHHHCCCCCCHHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCCCCCCCCHHHHHHHHH
Q ss_conf 25899999985123232301245443103554214679999999999984158642111389999875430233356776
Q gi|254781088|r 85 FPFVFSLFVFLTTANLLGLHPYLFSFTSQIVVTTSFSLLVVLSVVISGFYVNGLGFLRLFIPKDIPLLIKPLVCFIEVSS 164 (250)
Q Consensus 85 ~p~i~TlF~fIl~~NllGLiP~~~~~Ta~l~~t~~lal~~~~~~~~~g~~~~g~~~~~~~~~~g~p~~l~p~~~~iE~is 164 (250)
T Consensus 71 ~~~~~~~f~~~~~~n~~gl~p~~~~~t~~~~~~~~l~~~~~~~~~~~g~~~~~~~~~~~~~p~g~p~~l~p~~~~~e~~~ 150 (234)
T TIGR01131 71 FPLILSLFLFILLSNLLGLLPYSFTPTSHLSLTLGLALPLWLGLTISGFRKHPLGFLAHLLPSGTPLPLLPFLVLIELIS 150 (234)
T ss_pred HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCHHHHHHHHHHHHHH
T ss_conf 99999999999998777652111101578999999999999999999998524677776504677357889999999999
Q ss_pred HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH---HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
Q ss_conf 5441333335777877768999999999999999---8788999999999999999999999999999999999999997
Q gi|254781088|r 165 FLFRPVSLSLRLFANMLAGHLMLKVFAGFSTSMM---SIGMLGIAFSFLPVLANVAVTGLEFFVAFMQAYIFMVLACVYI 241 (250)
Q Consensus 165 ~~~rp~sLs~RLfgNi~aG~iil~l~~~~~~~~~---~~~~~~~~~~~~~~~~~~~~~~lel~v~~iQAyVF~~Lt~~Yi 241 (250)
T Consensus 151 ~~~~p~~l~~rl~~n~~~Gh~~~~~~~~~~~~~~~~~~~~~~~~~~~~~p~~~~~~~~~~e~~~~~~q~y~f~~l~~~y~ 230 (234)
T TIGR01131 151 YLARPLSLGLRLFANITAGHLLLTLLGGLLFSSSLLVSLALLLLLGGLLPLLILVALLGLELGVALIQAYVFTLLTCLYL 230 (234)
T ss_pred HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
T ss_conf 99888888888876554578999999999999888888899999999999999999999999999999999999999986
Q ss_pred HHHC
Q ss_conf 3340
Q gi|254781088|r 242 GDVY 245 (250)
Q Consensus 242 ~~a~ 245 (250)
T Consensus 231 ~~~~ 234 (234)
T TIGR01131 231 NDAL 234 (234)
T ss_pred HCCC
T ss_conf 3159