Structural highlights
4dyu is a 12 chain structure with sequence from Yersinia pestis kim. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
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| Ligands: | SO4, ZN |
| Gene: | dps, y1677, Yersinia pestis, YPO2510, YP_2325 (Yersinia pestis KIM) |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Function
[DPS_YERPE] During stationary phase, binds the chromosome non-specifically, forming a highly ordered and stable dps-DNA co-crystal within which chromosomal DNA is condensed and protected from diverse damages. It protects DNA from oxidative damage by sequestering intracellular Fe(2+) ion and storing it in the form of Fe(3+) oxyhydroxide mineral, which can be released after reduction. One hydrogen peroxide oxidizes two Fe(2+) ions, which prevents hydroxyl radical production by the Fenton reaction.[HAMAP-Rule:MF_01441]
See Also
