>cd03019 DsbA_DsbA DsbA family, DsbA subfamily; DsbA is a monomeric thiol disulfide oxidoreductase protein containing a redox active CXXC motif imbedded in a TRX fold. It is involved in the oxidative protein folding pathway in prokaryotes, and is the strongest thiol oxidant known, due to the unusual stability of the thiolate anion form of the first cysteine in the CXXC motif. The highly unstable oxidized form of DsbA directly donates disulfide bonds to reduced proteins secreted into the bacterial periplasm. This rapid and unidirectional process helps to catalyze the folding of newly-synthesized polypeptides. To regain catalytic activity, reduced DsbA is then reoxidized by the membrane protein DsbB, which generates its disulfides from oxidized quinones, which in turn are reoxidized by the electron transport chain.

Probab=99.96 E-value=2.2e-27 Score=193.05 Aligned_cols=164 Identities=15% Similarity=0.198 Sum_probs=128.3 Q ss_pred CCCCEEEEEEECCCCCCHHHHHHHHHHHHHHHCCCCCEEEEEECCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH Q ss_conf 98888999970588820644334211344320000203799843323430245777666666665321245588888865 Q gi|254780477|r 63 KDAPVTMVEYASMTCFHCAEFHNKTFKYLEDKYIKTGKLRYILREFPLDSVSTVAVMLARCAEKRMDGGYWGFVSLLFNK 142 (232) Q Consensus 63 ~~A~v~ivef~D~~Cp~C~~~~~~~~~~l~~~~~~~~~~~~~~~~~~~~~~~~~~~a~~~~~~~~~~~~~~~~~~~~~~~ 142 (232) T Consensus 13 p~a~vtIvEf~dy~Cp~C~~~~~~l~~~~~~~~~---~v~f~~~pv~~~~~~~~~~A~~~-~~a~~~~~~~~~~~~~F~~ 88 (178) T cd03019 13 PSGKPEVIEFFSYGCPHCYNFEPILEAWVKKLPK---DVKFEKVPVVFGGGEGEPLARAF-YAAEALGLEDKLHAALFEA 88 (178) T ss_pred CCCCCEEEEEECCCCHHHHHHHHHHHHHHHHCCC---CEEEEEEECCCCCCHHHHHHHHH-HHHHHCCCHHHHHHHHHHH T ss_conf 9999679999888886168882899999984799---75999985567883589999999-9999849487889999999 Q ss_pred HHHHHHHHHHHHHHHHHHHHHCCCHHHHHHHHCCHHHHHHHHHHHHHHHHHCCCCCCCEEEECCEEEC--CCCCHHHHHH Q ss_conf 43321134568998764311000068898640598999999999999998618853657998989961--8999999999 Q gi|254780477|r 143 QDDWINSKNYRDALLNMAKFAGFSKNDFDTCLNDQNILDDIKAGKKRASEDFAIDSTPVFFIGGNLYL--GDMSEGVFSK 220 (232) Q Consensus 143 q~~~~~~~~~~~~l~~~~~~~g~~~~~~~~~~~~~~~~~~i~~~~~~~~~~~gi~gTPt~~VnG~~~~--g~~~~~~~~~ 220 (232) T Consensus 89 ~~~~~~~~~~~~~l~~~a~~~Gld~~~f~~~~~s~~~~~~i~~~~~~a-~~~gI~gTPtfiINGKy~i~~~~~~~~~~~~ 167 (178) T cd03019 89 IHEKRKRLLDPDDIRKIFLSQGVDKKKFDAAYNSFSVKALVAKAEKLA-KKYKITGVPAFVVNGKYVVNPSAIGGDDTLQ 167 (178) T ss_pred HHHHHCCCCCHHHHHHHHHHCCCCHHHHHHHHCCHHHHHHHHHHHHHH-HHHCCCCCCEEEECCEEEECCCCCCHHHHHH T ss_conf 998501446766899999991989999999970889999999999999-9958986787999999998788788388999 Q ss_pred HHHHHHHHHHC Q ss_conf 99999998603 Q gi|254780477|r 221 IIDSMIQDSTR 231 (232) Q Consensus 221 ~id~ll~~~~~ 231 (232) T Consensus 168 ~~~~lv~~~~~ 178 (178) T cd03019 168 VLDELIEKVRY 178 (178) T ss_pred HHHHHHHHHHC T ss_conf 99999998519

HHsearch alignment for GI: 254780477 and conserved domain: cd03019