HHsearch alignment for GI: 254780717 and conserved domain: cd00636

>cd00636 TroA-like Helical backbone metal receptor (TroA-like domain). These proteins have been shown to function in the ABC transport of ferric siderophores and metal ions such as Mn2+, Fe3+, Cu2+ and/or Zn2+. Their ligand binding site is formed in the interface between two globular domains linked by a single helix. Many of these proteins also possess a low complexity region containing a metal-binding histidine-rich motif (repetitive HDH sequence). The TroA-like proteins differ in their fold and ligand-binding mechanism from the PBPI and PBPII proteins, but are structurally similar, however, to the beta-subunit of the nitrogenase molybdenum-iron protein MoFe. Most TroA-like proteins are encoded by ABC-type operons and appear to function as periplasmic components of ABC transporters in metal ion uptake.
Probab=98.21  E-value=8.9e-05  Score=50.72  Aligned_cols=124  Identities=20%  Similarity=0.190  Sum_probs=94.6

Q ss_pred             EEEEECHHHHHHHHHHHCCCCEEEEEECCCCC-------------CCCCCCCHHHHHHHCCCCEEEEECCCCCHHHHHHH
Q ss_conf             59997228999999970794417887058998-------------35335680245665025789996766103568999
Q gi|254780717|r   25 QVVVSIKPIHSIVSCIMQGIGTPALLVKGASS-------------PHEYSLRISEAMMLENADIIFWLGAEMESFLVKPL   91 (294)
Q Consensus        25 ~Vv~s~~pl~~lv~~I~gd~~~V~~L~~~g~d-------------pH~y~~tp~d~~~l~~Adlii~~G~~~E~~~~~~~   91 (294)
T Consensus         2 riv~~~~~~~e~l~~lg~~~~~vg~~~~~~~~~~~~~~~~~~~~~~~~~~~~~E~i~~l-~PDlvi~~~~~~~~~~~~l~   80 (148)
T cd00636           2 RVVALDPGATELLLALGGDDKPVGVADPSGYPPEAKALLEKVPDVGHGYEPNLEKIAAL-KPDLIIANGSGLEAWLDKLS   80 (148)
T ss_pred             EEEEECCHHHHHHHHCCCCCEEEEEECCCCCCHHHHHHHCCCCCCCCCCCCCHHHHHCC-CCCEEEEECCCCHHHHHHHH
T ss_conf             19995750899999869998599995677887033200012562688889999999707-99899994666788999998


Q ss_pred             HHCCCCCCEEEEEECCCCCCCCCCCCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHCCCCCHHHHHHHHHHHHHHH
Q ss_conf             73145576799751354462100121112332122475677655556789999999974218656588998999986312
Q gi|254780717|r   92 HSLNKQSNVVTLSHSPDLHRILLRDNHSHFHDSEADDLHLWLNPLNVQYIAHVIAMELIKKDPRNKIIYEKNEEEFKNQL  171 (294)
Q Consensus        92 ~~~~~~~~~i~~~~~~~~~~~~~~~~~~~~~~~~~~dpH~Wl~p~n~~~~a~~I~~~L~~~dP~~~~~y~~N~~~~~~~L  171 (294)
T Consensus        81 ~~-~--~~~~~~~~~~---------------------~---~~~~~~~~~i~~lg~~~~---------~~~~a~~~~~~~  124 (148)
T cd00636          81 KI-A--IPVVVVDEAS---------------------E---LSLENIKESIRLIGKALG---------KEENAEELIAEL  124 (148)
T ss_pred             HC-C--CCEEEECCCC---------------------C---CCHHHHHHHHHHHHHHHC---------CCHHHHHHHHHH
T ss_conf             63-9--9789957888---------------------8---999999999999999969---------818999999999


Q ss_pred             HHHHHHHHHHCCCC
Q ss_conf             22358999850300
Q gi|254780717|r  172 SQLDKELHSILQPV  185 (294)
Q Consensus       172 ~~l~~~~~~~~~~~  185 (294)
T Consensus       125 ~~~~~~i~~~~~~~  138 (148)
T cd00636         125 DARLAELRAKLAKI  138 (148)
T ss_pred             HHHHHHHHHHHCCC
T ss_conf             99999999996389