Structure of Mycobacterium smegmatis single-stranded DNA-binding protein and a comparative study involving homologus SSBs: biological implications of structural plasticity and variability in quaternary association

Saikrishnan, K.; Manjunath, G.P.; Singh, P.; Jeyakanthan, J.; Dauter, Z.; Sekar, K.; Muniyappa, K.; Vijayan, M.

doi:10.1107/S0907444905016896

Acta Crystallographica Section D
Acta Crystallographica
Section D BIOLOGICAL CRYSTALLOGRAPHY

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Figure 5
Structural superpositions of subunits A (magenta) and B (cyan) of MsSSB in the asymmetric unit of the 2.15 Å structure and a subunit of EcSSB from the crystal structure of the EcSSB–ssDNA complex (yellow). The orientation of subunit B of MsSSB and the subunit of EcSSB were obtained subsequent to the superposition of their respective cores onto the core of subunit A of MsSSB. Note the large deviation in the orientation of the loops. Also illustrated are the libration axis of loop 3 of subunit A (magenta) of MsSSB, the axis of rotation required to superpose loop 3 of subunit B of MsSSB (cyan) and the subunit of EcSSB (yellow) on to that of subunit A of MsSSB.

BIOLOGICAL
CRYSTALLOGRAPHY

ISSN: 1399-0047

Volume 61| Part 8| July 2005| Pages 1140-1148

doi:10.1107/S0907444905016896

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