| Structural highlights
Function
[SLYD_ECOLI] Folding helper with both chaperone and peptidyl-prolyl cis-trans isomerase (PPIase) activities. Chaperone activity prevents aggregation of unfolded or partially folded proteins and promotes their correct folding. PPIases catalyze the cis-trans isomerization of Xaa-Pro bonds of peptides, which accelerates slow steps of protein folding and thus shortens the lifetime of intermediates. Both strategies lower the concentration of intermediates and increase the productivity and yield of the folding reaction. SlyD could be involved in Tat-dependent translocation, by binding to the Tat-type signal of folded proteins. The PPIase substrate specificity, carried out with synthetic peptides of the 'suc-Ala-Xaa-Pro-Phe-4NA' type (where Xaa is the AA tested), was found to be Phe > Ala > Leu.[1] [2] [3] [4] [5] [6] Required for lysis of phiX174 infected cells by stabilizing the hydrophobic viral lysis protein E and allowing it to accumulate to the levels required to exert its lytic effect. May act by a chaperone-like mechanism.[7] [8] [9] [10] [11] [12] Also involved in hydrogenase metallocenter assembly, probably by participating in the nickel insertion step. This function in hydrogenase biosynthesis requires chaperone activity and the presence of the metal-binding domain, but not PPIase activity.[13] [14] [15] [16] [17] [18]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
The sensitive to lysis D (SlyD) protein from Escherichia coli is related to the FK506-binding protein family, and it harbours both peptidyl-prolyl cis-trans isomerase (PPIase) and chaperone-like activity, preventing aggregation and promoting the correct folding of other proteins. Whereas a functional role of SlyD as a protein-folding catalyst in vivo remains unclear, SlyD has been shown to be an essential component for [Ni-Fe]-hydrogenase metallocentre assembly in bacteria. Interestingly, the isomerase activity of SlyD is uniquely modulated by nickel ions, which possibly regulate its functions in response to external stimuli. In this work, we investigated the solution structure of SlyD and its interaction with nickel ions, enabling us to gain insights into the molecular mechanism of this regulation. We have revealed that the PPIase module of SlyD contains an additional C-terminal alpha-helix packed against the catalytic site of the domain; unexpectedly, our results show that the interaction of SlyD with nickel ions entails participation of the novel structural features of the PPIase domain, eliciting structural alterations of the catalytic pocket. We suggest that such conformational rearrangements upon metal binding underlie the ability of nickel ions to regulate the isomerase activity of SlyD.
The interaction of the Escherichia coli protein SlyD with nickel ions illuminates the mechanism of regulation of its peptidyl-prolyl isomerase activity.,Martino L, He Y, Hands-Taylor KL, Valentine ER, Kelly G, Giancola C, Conte MR FEBS J. 2009 Aug;276(16):4529-44. Epub 2009 Jul 23. PMID:19645725[19]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Bernhardt TG, Roof WD, Young R. The Escherichia coli FKBP-type PPIase SlyD is required for the stabilization of the E lysis protein of bacteriophage phi X174. Mol Microbiol. 2002 Jul;45(1):99-108. PMID:12100551
- ↑ Zhang JW, Butland G, Greenblatt JF, Emili A, Zamble DB. A role for SlyD in the Escherichia coli hydrogenase biosynthetic pathway. J Biol Chem. 2005 Feb 11;280(6):4360-6. Epub 2004 Nov 29. PMID:15569666 doi:http://dx.doi.org/10.1074/jbc.M411799200
- ↑ Scholz C, Eckert B, Hagn F, Schaarschmidt P, Balbach J, Schmid FX. SlyD proteins from different species exhibit high prolyl isomerase and chaperone activities. Biochemistry. 2006 Jan 10;45(1):20-33. PMID:16388577 doi:http://dx.doi.org/10.1021/bi051922n
- ↑ Zhang JW, Leach MR, Zamble DB. The peptidyl-prolyl isomerase activity of SlyD is not required for maturation of Escherichia coli hydrogenase. J Bacteriol. 2007 Nov;189(21):7942-4. Epub 2007 Aug 24. PMID:17720786 doi:http://dx.doi.org/10.1128/JB.00922-07
- ↑ Graubner W, Schierhorn A, Bruser T. DnaK plays a pivotal role in Tat targeting of CueO and functions beside SlyD as a general Tat signal binding chaperone. J Biol Chem. 2007 Mar 9;282(10):7116-24. Epub 2007 Jan 10. PMID:17215254 doi:http://dx.doi.org/10.1074/jbc.M608235200
- ↑ Weininger U, Haupt C, Schweimer K, Graubner W, Kovermann M, Bruser T, Scholz C, Schaarschmidt P, Zoldak G, Schmid FX, Balbach J. NMR solution structure of SlyD from Escherichia coli: spatial separation of prolyl isomerase and chaperone function. J Mol Biol. 2009 Mar 27;387(2):295-305. Epub 2009 Jan 27. PMID:19356587 doi:10.1016/j.jmb.2009.01.034
- ↑ Bernhardt TG, Roof WD, Young R. The Escherichia coli FKBP-type PPIase SlyD is required for the stabilization of the E lysis protein of bacteriophage phi X174. Mol Microbiol. 2002 Jul;45(1):99-108. PMID:12100551
- ↑ Zhang JW, Butland G, Greenblatt JF, Emili A, Zamble DB. A role for SlyD in the Escherichia coli hydrogenase biosynthetic pathway. J Biol Chem. 2005 Feb 11;280(6):4360-6. Epub 2004 Nov 29. PMID:15569666 doi:http://dx.doi.org/10.1074/jbc.M411799200
- ↑ Scholz C, Eckert B, Hagn F, Schaarschmidt P, Balbach J, Schmid FX. SlyD proteins from different species exhibit high prolyl isomerase and chaperone activities. Biochemistry. 2006 Jan 10;45(1):20-33. PMID:16388577 doi:http://dx.doi.org/10.1021/bi051922n
- ↑ Zhang JW, Leach MR, Zamble DB. The peptidyl-prolyl isomerase activity of SlyD is not required for maturation of Escherichia coli hydrogenase. J Bacteriol. 2007 Nov;189(21):7942-4. Epub 2007 Aug 24. PMID:17720786 doi:http://dx.doi.org/10.1128/JB.00922-07
- ↑ Graubner W, Schierhorn A, Bruser T. DnaK plays a pivotal role in Tat targeting of CueO and functions beside SlyD as a general Tat signal binding chaperone. J Biol Chem. 2007 Mar 9;282(10):7116-24. Epub 2007 Jan 10. PMID:17215254 doi:http://dx.doi.org/10.1074/jbc.M608235200
- ↑ Weininger U, Haupt C, Schweimer K, Graubner W, Kovermann M, Bruser T, Scholz C, Schaarschmidt P, Zoldak G, Schmid FX, Balbach J. NMR solution structure of SlyD from Escherichia coli: spatial separation of prolyl isomerase and chaperone function. J Mol Biol. 2009 Mar 27;387(2):295-305. Epub 2009 Jan 27. PMID:19356587 doi:10.1016/j.jmb.2009.01.034
- ↑ Bernhardt TG, Roof WD, Young R. The Escherichia coli FKBP-type PPIase SlyD is required for the stabilization of the E lysis protein of bacteriophage phi X174. Mol Microbiol. 2002 Jul;45(1):99-108. PMID:12100551
- ↑ Zhang JW, Butland G, Greenblatt JF, Emili A, Zamble DB. A role for SlyD in the Escherichia coli hydrogenase biosynthetic pathway. J Biol Chem. 2005 Feb 11;280(6):4360-6. Epub 2004 Nov 29. PMID:15569666 doi:http://dx.doi.org/10.1074/jbc.M411799200
- ↑ Scholz C, Eckert B, Hagn F, Schaarschmidt P, Balbach J, Schmid FX. SlyD proteins from different species exhibit high prolyl isomerase and chaperone activities. Biochemistry. 2006 Jan 10;45(1):20-33. PMID:16388577 doi:http://dx.doi.org/10.1021/bi051922n
- ↑ Zhang JW, Leach MR, Zamble DB. The peptidyl-prolyl isomerase activity of SlyD is not required for maturation of Escherichia coli hydrogenase. J Bacteriol. 2007 Nov;189(21):7942-4. Epub 2007 Aug 24. PMID:17720786 doi:http://dx.doi.org/10.1128/JB.00922-07
- ↑ Graubner W, Schierhorn A, Bruser T. DnaK plays a pivotal role in Tat targeting of CueO and functions beside SlyD as a general Tat signal binding chaperone. J Biol Chem. 2007 Mar 9;282(10):7116-24. Epub 2007 Jan 10. PMID:17215254 doi:http://dx.doi.org/10.1074/jbc.M608235200
- ↑ Weininger U, Haupt C, Schweimer K, Graubner W, Kovermann M, Bruser T, Scholz C, Schaarschmidt P, Zoldak G, Schmid FX, Balbach J. NMR solution structure of SlyD from Escherichia coli: spatial separation of prolyl isomerase and chaperone function. J Mol Biol. 2009 Mar 27;387(2):295-305. Epub 2009 Jan 27. PMID:19356587 doi:10.1016/j.jmb.2009.01.034
- ↑ Martino L, He Y, Hands-Taylor KL, Valentine ER, Kelly G, Giancola C, Conte MR. The interaction of the Escherichia coli protein SlyD with nickel ions illuminates the mechanism of regulation of its peptidyl-prolyl isomerase activity. FEBS J. 2009 Aug;276(16):4529-44. Epub 2009 Jul 23. PMID:19645725 doi:10.1111/j.1742-4658.2009.07159.x
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