>cd03300 ABC_PotA_N PotA is an ABC-type transporter and the ATPase component of the spermidine/putrescine-preferential uptake system consisting of PotA, -B, -C, and -D. PotA has two domains with the N-terminal domain containing the ATPase activity and the residues required for homodimerization with PotA and heterdimerization with PotB. ABC transporters are a large family of proteins involved in the transport of a wide variety of different compounds, like sugars, ions, peptides, and more complex organic molecules. The nucleotide binding domain shows the highest similarity between all members of the family. ABC transporters are a subset of nucleotide hydrolases that contain a signature motif, Q-loop, and H-loop/switch region, in addition to, the Walker A motif/P-loop and Walker B motif commonly found in a number of ATP- and GTP-binding and hydrolyzing proteins.

Probab=97.97 E-value=7.3e-05 Score=51.02 Aligned_cols=71 Identities=28% Similarity=0.383 Sum_probs=59.3 Q ss_pred HCCHHHHHHHHHHHHHHCCCCCCCEEEEECCCCCCCHHHHHHHHHHHHHHHHC--CCEEEEECHHHHHHH-CCCEEEE Q ss_conf 06215799999999984366899769980344688879999999999997305--939998083798650-1761799 Q gi|255764514|r 428 ASGGELSRFLLALKIVLVDQGSIPTLVFDEVDSGIGGAVADAIGYRLKQLSKK--IQLLAVTHAPQVAAR-ADRHFLV 502 (554) Q Consensus 428 aSGGE~Sr~~LAl~~~~~~~~~~p~~ifDEiDagi~G~~a~~v~~~l~~ls~~--~Qvi~ITH~pqvAa~-a~~h~~v 502 (554) T Consensus 131 LSGGqkQRVaiARAl~----~~P~llllDEP~s~LD~~~~~~i~~~l~~l~~~~~~T~i~VTHd~~ea~~ladri~vm 204 (232) T cd03300 131 LSGGQQQRVAIARALV----NEPKVLLLDEPLGALDLKLRKDMQLELKRLQKELGITFVFVTHDQEEALTMSDRIAVM 204 (232) T ss_pred CCHHHHHHHHHHHHHH----CCCCEEEECCCCCCCCHHHHHHHHHHHHHHHHHHCCEEEEECCCHHHHHHHCCEEEEE T ss_conf 9989999999999986----5999999808876469999999999999999985999999999999999969999999

HHsearch alignment for GI: 255764514 and conserved domain: cd03300