Zn-ribbon_9 is a Zn-ribbon domain rich in aromatic and positively charged amino acid residues. This C-terminal Zn-ribbon domain consists of two beta-strands acting as a scaffold for the two Zn knuckles. Both pairs of cysteines making up the two Zn kn ...
Zn-ribbon_9 is a Zn-ribbon domain rich in aromatic and positively charged amino acid residues. This C-terminal Zn-ribbon domain consists of two beta-strands acting as a scaffold for the two Zn knuckles. Both pairs of cysteines making up the two Zn knuckles are situated at highly conserved sharp beta-turns, an arrangement that facilitates the tetrahedral coordination of the divalent Zn ion. The two Zn-knuckle cysteine motifs are separated by 20 residues, 9 of which form an alpha-helix (helix 4) [2].Structural modelling suggests this domain may bind nucleic acids [1]. The domain appears to bind flaA-mRNA, thus contributing to flagellum formation and motility [2].
This entry, previously known as DUF7581, represents a coiled coil hairpin domain found N-terminal in CT398 from C. trachomatis, MSMEG_4306 M. smegmatis and related bacterial sequences predominantly from actinobacteria. Both CT398 and MSMEG_4306 prote ...
This entry, previously known as DUF7581, represents a coiled coil hairpin domain found N-terminal in CT398 from C. trachomatis, MSMEG_4306 M. smegmatis and related bacterial sequences predominantly from actinobacteria. Both CT398 and MSMEG_4306 proteins have been structurally characterised [1,2]. CT398 protein is involved in several aspects of chlamydial biology and pathogenesis, and is capable of interacting with multiple binding partners. The coiled coil hairpin domain of CT398 engages in interaction with RpoN as well as both T3SS ATPase-regulators FliH and CdsL [2].
