HHsearch alignment for GI: 254780822 and conserved domain: cd02976

>cd02976 NrdH NrdH-redoxin (NrdH) family; NrdH is a small monomeric protein with a conserved redox active CXXC motif within a TRX fold, characterized by a glutaredoxin (GRX)-like sequence and TRX-like activity profile. In vitro, it displays protein disulfide reductase activity that is dependent on TRX reductase, not glutathione (GSH). It is part of the NrdHIEF operon, where NrdEF codes for class Ib ribonucleotide reductase (RNR-Ib), an efficient enzyme at low oxygen levels. Under these conditions when GSH is mostly conjugated to spermidine, NrdH can still function and act as a hydrogen donor for RNR-Ib. It has been suggested that the NrdHEF system may be the oldest RNR reducing system, capable of functioning in a microaerophilic environment, where GSH was not yet available. NrdH from Corynebacterium ammoniagenes can form domain-swapped dimers, although it is unknown if this happens in vivo. Domain-swapped dimerization, which results in the blocking of the TRX reductase binding site, cou
Probab=97.67  E-value=0.00015  Score=47.40  Aligned_cols=68  Identities=15%  Similarity=0.350  Sum_probs=47.8

Q ss_pred             EEEEECCCCHHHHHHHHHHHHHHHHCCCCCCCCCCCCCCCHHHHHHH----CCCCCCEEEEEECCEEEEEEECCCCCHHH
Q ss_conf             99987699702221346666542100012333226723265777762----31568879999799898588748999899
Q gi|254780822|r   23 VVDFWASWCRPCVKLSPIIDDIADELADKVKITKLDIEESSEISTRY----QISSIPTLILFKDGKVIDRMMPGASSQSD   98 (107)
Q Consensus        23 lv~f~a~wC~~C~~~~p~~~~l~~~~~~~i~~~~vd~d~~~~l~~~~----~v~~~Pt~~~~~~g~~~~~~~~g~~~~~~   98 (107)
T Consensus         2 I~iYt~~~C~~C~~ak~~L~~~------gi~y~~~di~~d~~~~~~l~~~~g~~~vP~i~i--~~~----~i~Gf-~~~~   68 (73)
T cd02976           2 VTVYTKPDCPYCKATKRFLDER------GIPFEEVDVDEDPEALEELKKLNGYRSVPVVVI--GDE----HLSGF-RPDK   68 (73)
T ss_pred             EEEECCCCCHHHHHHHHHHHHC------CCEEEEEECCCCHHHHHHHHHHCCCCCCCEEEE--CCE----EEECC-CHHH
T ss_conf             9999189997799999999983------990499987999999999998659996188999--999----99387-9999


Q ss_pred             HHHHH
Q ss_conf             99999
Q gi|254780822|r   99 IIEWI  103 (107)
Q Consensus        99 l~~~i  103 (107)
T Consensus        69 l~~~l   73 (73)
T cd02976          69 LRALL   73 (73)
T ss_pred             HHHHC
T ss_conf             99649