HHsearch alignment for GI: 254780614 and conserved domain: TIGR01216

>TIGR01216 ATP_synt_epsi ATP synthase F1, epsilon subunit; InterPro: IPR001469 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 family represents subunits called delta (in mitochondrial ATPase) or epsilon (in bacteria or chloroplast ATPase). The interaction site of subunit C of the F0 complex with the delta or epsilon subunit of the F1 complex may be important for connecting the rotor of F1 (gamma subunit) to the rotor of F0 (C subunit) . In bacterial species, the delta subunit is the equivalent of the Oligomycin sensitive subunit (OSCP, IPR000711 from INTERPRO) in metazoans. The C-terminal domain of the epsilon subunit appears to act as an inhibitor of ATPase activity . More information about this protein can be found at Protein of the Month: ATP Synthases .; GO: 0046933 hydrogen ion transporting ATP synthase activity rotational mechanism, 0046961 hydrogen ion transporting ATPase activity rotational mechanism, 0015986 ATP synthesis coupled proton transport, 0016469 proton-transporting two-sector ATPase complex.
Probab=99.77  E-value=4.7e-18  Score=133.41  Aligned_cols=125  Identities=31%  Similarity=0.484  Sum_probs=108.9

Q ss_pred             EEEEEEECCCCEEECCEEEEEEEEECCCEEEECCCCCEEEEECCCCEEEEEECCCCEEEEECCCCEEEEECCEEEEEEEC
Q ss_conf             02699984886375221319999605733577689800266706880799626884035422675699949969999811
Q gi|254780614|r    6 DLHFELVSPEKCVFSGEVQSVVLPSELGDITVLVGHAPVLTTIKSGIVTISLSCEEIHRYVVIGGICDIVPSHCTVLSET   85 (135)
Q Consensus         6 ~~~l~ivtP~~~i~~~~v~~v~~p~~~G~~gILp~H~p~i~~L~~G~i~i~~~~~~~~~~~V~gG~~~v~~~~v~Il~~~   85 (135)
T Consensus         1 ~~~~~~~~p~~~~~~~~~~~~~~~~~~g~~g~~~~h~~~~~~~~~g~~~~~~~~~-~~~~~~~~g~~~~~~~~~~~l~~~   79 (131)
T TIGR01216         1 TLKLEVVTPEGEIYSGEVESVVLPGSEGELGILPGHAPLLTLLKPGVVRIRKLGD-WELIALSGGFLEVEPDKVTVLADG   79 (131)
T ss_pred             CEEEEEECCCCHHHCCCEEEEEECCCCCCEEEECCCCHHHHHCCCCEEEEEECCC-CEEEEEECCEEEECCCEEEEEECC
T ss_conf             9256774332000001113567315555101103620012210334257742687-215676334345417614787411


Q ss_pred             CEEHHHCCHHHHHHHHHHHHHHHHHCC-CHHHHHHHHHHHHHHHHHHHH
Q ss_conf             220768599999999999999965078-889999999999999999886
Q gi|254780614|r   86 ILPMDNACLQALEKRIDEVCSDLNNIC-DVDQRFQMEQLLVDLSCLRRR  133 (135)
Q Consensus        86 a~~~~~iD~~~a~~~~e~a~~~l~~~~-~~~~~~~~~~~~~~l~~~r~~  133 (135)
T Consensus        80 ~~~~~~~~~~~~~~~~~~~~~~~~~~~g~~~~~~--~~~~~~~~~~~~~  126 (131)
T TIGR01216        80 AVFGGDLDEAEAEEALEAAEELLESAEGSDDEDL--AEALLKLKKARAR  126 (131)
T ss_pred             HHHCCCCCHHHHHHHHHHHHHHHHCCCCCCHHHH--HHHHHHHHHHHHH
T ss_conf             0100145877899999988876411678632678--9999999887777