4jpo

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Template:STRUCTURE 4jpo

Contents

5A resolution structure of Proteasome Assembly Chaperone Hsm3 in complex with a C-terminal fragment of Rpt1

Template:ABSTRACT PUBMED 23644457

Function

[HSM3_YEAST] Involved in DNA mismatch repair in slow-growing cells. Acts as a chaperone during the assembly of the 26S proteasome, specifically of the base subcomplex of the 19S regulatory complex (RC).[1] [2] [3] [4] [5] [6] [7] [PRS7_YEAST] The 26S protease is involved in the ATP-dependent degradation of ubiquitinated proteins. The regulatory (or ATPase) complex confers ATP dependency and substrate specificity to the 26S complex (By similarity).

About this Structure

4jpo is a 4 chain structure with sequence from Saccharomyces cerevisiae s288c. Full crystallographic information is available from OCA.

Reference

  • Park S, Li X, Kim HM, Singh CR, Tian G, Hoyt MA, Lovell S, Battaile KP, Zolkiewski M, Coffino P, Roelofs J, Cheng Y, Finley D. Reconfiguration of the proteasome during chaperone-mediated assembly. Nature. 2013 May 23;497(7450):512-6. doi: 10.1038/nature12123. Epub 2013 May 5. PMID:23644457 doi:10.1038/nature12123
  1. ↑ Fedorova IV, Gracheva LM, Kovaltzova SV, Evstuhina TA, Alekseev SY, Korolev VG. The yeast HSM3 gene acts in one of the mismatch repair pathways. Genetics. 1998 Mar;148(3):963-73. PMID:9539417
  2. ↑ Merker JD, Datta A, Kolodner RD, Petes TD. The yeast HSM3 gene is not involved in DNA mismatch repair in rapidly dividing cells. Genetics. 2000 Jan;154(1):491-3. PMID:10681182
  3. ↑ Fedorova IV, Kovaltzova SV, Korolev VG. The yeast HSM3 gene is involved in DNA mismatch repair in slowly dividing cells. Genetics. 2000 Jan;154(1):495-6. PMID:10681183
  4. ↑ Fedorova IV, Kovaltzova SV, Gracheva LM, Evstuhina TA, Korolev VG. Requirement of HSM3 gene for spontaneous mutagenesis in Saccharomyces cerevisiae. Mutat Res. 2004 Oct 4;554(1-2):67-75. PMID:15450405 doi:10.1016/j.mrfmmm.2004.03.003
  5. ↑ Funakoshi M, Tomko RJ Jr, Kobayashi H, Hochstrasser M. Multiple assembly chaperones govern biogenesis of the proteasome regulatory particle base. Cell. 2009 May 29;137(5):887-99. Epub 2009 May 14. PMID:19446322 doi:S0092-8674(09)00526-1
  6. ↑ Le Tallec B, Barrault MB, Guerois R, Carre T, Peyroche A. Hsm3/S5b participates in the assembly pathway of the 19S regulatory particle of the proteasome. Mol Cell. 2009 Feb 13;33(3):389-99. doi: 10.1016/j.molcel.2009.01.010. PMID:19217412 doi:10.1016/j.molcel.2009.01.010
  7. ↑ Roelofs J, Park S, Haas W, Tian G, McAllister FE, Huo Y, Lee BH, Zhang F, Shi Y, Gygi SP, Finley D. Chaperone-mediated pathway of proteasome regulatory particle assembly. Nature. 2009 Jun 11;459(7248):861-5. PMID:19412159 doi:nature08063

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