>TIGR01039 atpD ATP synthase F1, beta subunit; InterPro: IPR005722 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 the beta subunit found in the F1 complex of F-ATPases. In F-ATPases, there are three copies each of the alpha and beta subunits that form the catalytic core of the F1 complex, while the remaining F1 subunits (gamma, delta, epsilon) form part of the stalks. There is a substrate-binding site on each of the alpha and beta subunits, those on the beta subunits being catalytic, while those on the alpha subunits are regulatory. The alpha and beta subunits form a cylinder that is attached to the central stalk. The alpha/beta subunits undergo a sequence of conformational changes leading to the formation of ATP from ADP, which are induced by the rotation of the gamma subunit, itself is driven by the movement of protons through the F0 complex C subunit , . More information about this protein can be found at Protein of the Month: ATP Synthases .; GO: 0008553 hydrogen-exporting ATPase activity phosphorylative mechanism, 0046933 hydrogen ion transporting ATP synthase activity rotational mechanism, 0006754 ATP biosynthetic process, 0015986 ATP synthesis coupled proton transport, 0016021 integral to membrane.

Probab=100.00 E-value=1.3e-42 Score=299.49 Aligned_cols=321 Identities=19% Similarity=0.216 Sum_probs=288.5 Q ss_pred CCEEECCCCCCCCCCCCCEEEEEEEECCCCCCCCCCEEECCCCCCCHHHHHCCCCHHHCCCCCCCCCCCCCCCCCCCCCH Q ss_conf 60460100001221259879998862468887630002222556887885124430002000112234324778653213 Q gi|254780810|r 81 DIYVSPSQIKSFSLKTGDTVEGSIRAPREGERYFALLKVNAINFDVPERVRNKIHFDNLTPLYPDKRFNMELNNPENKDI 160 (423) Q Consensus 81 DiyVs~slir~f~Lr~GD~V~g~~r~~~~~~~~~~L~rV~~vnG~~~d~~~~~~~f~~l~p~~p~~~i~le~~~~~p~~~ 160 (423) T Consensus 48 ~~vr~ia~~~~~Gl~r~~~~~~~~~~i~vPvG~~~~G~~~nv~G~~~d~~~~~~~~~~~~~~~~~P~~~~~~~~~~~l~t 127 (460) T TIGR01039 48 DTVRAIALDSTDGLVRGLEVVDTGKPIEVPVGKEVLGRIFNVLGEPIDEKGEVKKKEKLPIHRKAPSFEEQSTKVEILET 127 (460) T ss_pred CCEEEEEECCCCCHHHHHHHHHCCCEEEECCCCCHHHHHHHHHCHHCCCCCCCHHHHHHHHHCCCCCHHHHHHHHHHHHH T ss_conf 60567873143330221355543872551147404557876621000341110023420122068513443346789873 Q ss_pred HHHHHHHHHHHHCCCCEEEECCCCCCHHHHHHHHHHHHHHCCCCCEEEEEECCCCHHHHHHHHHHHC--------CEEEE Q ss_conf 6888998865510231222048778789999999999861188646999950878789999998403--------42782 Q gi|254780810|r 161 SSRVIDLIAPIGKGQRSLIVAPPRTGKTILLQNIAHSIKKNHPECYLIVLLIDERPEEVTDMQRSVQ--------GEVIS 232 (423) Q Consensus 161 ~~~~id~~~pig~gqr~~i~~~~~~gkt~ll~~ia~~~~~~~~~v~~i~~ligEr~~ev~e~~~~~~--------~~vv~ 232 (423) T Consensus 128 G~kv~dll~P~~~GGk~glfGGaGvGktv~~~eli~~~a~~~~G~sv~~-GvGertreGndly~e~~~~~v~~~~~~lv~ 206 (460) T TIGR01039 128 GIKVIDLLAPYAKGGKIGLFGGAGVGKTVLIQELINNIAKEHGGLSVFA-GVGERTREGNDLYLEMKESGVINSKVALVY 206 (460) T ss_pred HHHHHHHHHHHHCCCEEEEECCCCCCHHHHHHHHHHHHHHHHCCEEEEE-ECCCCCCCHHHHHHHHHHCCCCCCCEEEEE T ss_conf 3688877515432880677317662245668999999998628807985-066533325689999873241012326887 Q ss_pred CCCCCCHHHHHHHHHHHHHHHHHHHH-CCCCEEEEEECHHHHHHHHHCCCCCCCCCCCC-CCCHHHHHHCHHHHHCCCCC Q ss_conf 36678888999999999999999997-79928999816389877620013667776777-52024665046875225777 Q gi|254780810|r 233 STFDESAARHVQVAEMVIAKAKCLVE-YGLDVVILLDSITRLCRAYNVLMPSSGKILTG-GVDANALQRPKRFFGAARNI 310 (423) Q Consensus 233 st~d~~~~~~~~~a~~a~~~a~~~~e-~G~dVll~~DslTR~ArA~~~~~~~~g~~~~g-g~~~~~l~~~~~~~~~ar~~ 310 (423) T Consensus 207 Gqm~ePPG~r~rva~~~lt~ae~frd~~~~dvl~f~dnifrf~~aG~e~s~llGr~PsavGyqPtl~~~~G~lqeri~-s 285 (460) T TIGR01039 207 GQMNEPPGARLRVALTGLTMAEYFRDEEGQDVLLFIDNIFRFTQAGSEVSALLGRLPSAVGYQPTLATEMGELQERIT-S 285 (460) T ss_pred ECCCCCCCCCHHHHHHHHHHHHHHHCCCCCEEEEEEHHHHHHHHHHHHHHHHHHCCCHHCCCCCCHHHHHHHHHHHHH-H T ss_conf 213689874110345677888875112466378851446777631047898861011000566303566767877765-2 Q ss_pred CCCCCCEEEEEEEECCCCCCCCHHHHHHHHCCCCEEEEEHHHHHCCCCCCCCCCCCCCC-CHHHCCCHHHHHHHHHHHHH Q ss_conf 77785001211201267655413889885226607898087884799974053354221-01551999999999999999 Q gi|254780810|r 311 KEGGSLTIIGTALVDTGSRMDEVIFEEFKGTGNSEIVLERKIADKRIFPAMDIIKSGTR-KEDLLVERQDLQKVFMLRRI 389 (423) Q Consensus 311 ~~~Gs~T~~~t~lvetg~~~d~~i~~~~~~~~d~~i~L~r~la~~~~~PAId~~~S~sR-~~~~l~~~~~~~~~~~~r~~ 389 (423) T Consensus 286 t~~~s~ts~qa~yvPa-dd~tdPaP~~~fahlda~~~l~r~~~~~GiyPav~Pl~s~s~~l~~~~vG~~hy~~a~~v~~~ 364 (460) T TIGR01039 286 TKKGSITSVQAVYVPA-DDLTDPAPATTFAHLDATTVLSRKIAELGIYPAVDPLDSTSRLLDPEVVGEEHYEVAREVQSI 364 (460) T ss_pred CCCCCEEEEEEEEECC-CCCCCCCCHHHHHHHHHHHHHHHHHHHCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHH T ss_conf 1355325676786332-025788630344440002454566875177655465101344430565216789999999999 Q ss_pred HHCCCCHHHHHHHHH Q ss_conf 612693789999999 Q gi|254780810|r 390 VSSMNSSDAIEFLID 404 (423) Q Consensus 390 l~~~~~~e~~~~l~~ 404 (423) T Consensus 365 lq~y~~l~diiailG 379 (460) T TIGR01039 365 LQRYKELQDIIAILG 379 (460) T ss_pred HHHHHHHHHHHHHHC T ss_conf 998887888988843

HHsearch alignment for GI: 254780810 and conserved domain: TIGR01039