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From Wikipedia, the free encyclopedia

Regulatory protein rop
Identifiers
OrganismEscherichia coli
SymbolRop
UniProtP03051
Search for
StructuresSwiss-model
DomainsInterPro

Rop (also known as repressor of primer, or as RNA one modulator (ROM)) is a small dimeric protein responsible for keeping the copy number of ColE1 family and related bacterial plasmids low in E. coli by increasing the speed of pairing between the preprimer RNA, RNA II, and its antisense RNA, RNA I.[1] Structurally, Rop is a homodimeric four-helix bundle protein formed by the antiparallel interaction of two helix-turn-helix monomers. The Rop protein's structure has been solved to high resolution.[2] Due to its small size and known structure, Rop has been used in protein design work to rearrange its helical topology and reengineer its loop regions.[3] In general, the four-helix bundle has been extensively used in de novo protein design work as a simple model to understand the relationship between amino acid sequence and structure.

ColE1 replication control
ColE1 replication control

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External links

References

  1. ^ del Solar G, Espinosa M (August 2000). "Plasmid copy number control: an ever-growing story". Molecular Microbiology. 37 (3): 492–500. doi:10.1046/j.1365-2958.2000.02005.x. PMID 10931343.
  2. ^ Banner, David W.; Kokkinidis, Michael; Tsernoglou, Demetrius (August 1987). "Structure of the ColE1 Rop protein at 1.7 Å resolution". Journal of Molecular Biology. 196 (3): 657–675. doi:10.1016/0022-2836(87)90039-8. PMID 3681971.
  3. ^ Kresse, H. P.; Czubayko, M.; Nyakatura, G.; Vriend, G.; Sander, C.; Bloecker, H. (1 November 2001). "Four-helix bundle topology re-engineered: monomeric Rop protein variants with different loop arrangements". Protein Engineering Design and Selection. 14 (11): 897–901. doi:10.1093/protein/14.11.897. PMID 11742109.
This page was last edited on 18 August 2023, at 07:38
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