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1l35

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STRUCTURE OF A THERMOSTABLE DISULFIDE-BRIDGE MUTANT OF PHAGE T4 LYSOZYME SHOWS THAT AN ENGINEERED CROSSLINK IN A FLEXIBLE REGION DOES NOT INCREASE THE RIGIDITY OF THE FOLDED PROTEIN

Structural highlights

1l35 is a 1 chain structure with sequence from Escherichia virus T4. The September 2000 RCSB PDB Molecule of the Month feature on Lysozyme by David S. Goodsell is 10.2210/rcsb_pdb/mom_2000_9. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

ENLYS_BPT4 Endolysin with lysozyme activity that degrades host peptidoglycans and participates with the holin and spanin proteins in the sequential events which lead to the programmed host cell lysis releasing the mature viral particles. Once the holin has permeabilized the host cell membrane, the endolysin can reach the periplasm and break down the peptidoglycan layer.^[1]

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

A disulfide bond introduced between amino acid positions 9 and 164 in phage T4 lysozyme has been shown to significantly increase the stability of the enzyme toward thermal denaturation [Matsumura, M., Becktel, W.J., Levitt, M., & Matthews, B. W. (1989) Proc. Natl. Acad. Sci. U.S.A. 86, 6562-6566]. To elucidate the structural features of the engineered disulfide, the crystal structure of the disulfide mutant has been determined at 1.8-A resolution. Residue 9 lies in the N-terminal alpha-helix, while residue 164 is located at the extreme C terminus of T4 lysozyme, which is the most mobile part of the molecule. The refined structure shows that the formation of the disulfide bond is accompanied by relatively large (approximately 2.5 A) localized shifts in C-terminal main-chain atoms. Comparison of the geometry of the engineered disulfide with those of naturally observed disulfides in proteins shows that the engineered bridge adopts a left-handed spiral conformation with a typical set of dihedral angles and C alpha-C alpha distance. The geometry of the engineered disulfide suggests that it is slightly more strained than the disulfide of oxidized dithiothreitol but that the strain is within the range observed in naturally occurring disulfides. The wild-type and cross-linked lysozymes have very similar overall crystallographic temperature factors, indicating that the introduction of the disulfide bond does not impose rigidity on the folded protein structure. In particular, residues 162-164 retain high mobility in the mutant structure, consistent with the idea that stabilization of the protein is due to the effect of the disulfide cross-link on the unfolded rather than the folded state.(ABSTRACT TRUNCATED AT 250 WORDS)

Structure of a thermostable disulfide-bridge mutant of phage T4 lysozyme shows that an engineered cross-link in a flexible region does not increase the rigidity of the folded protein.,Pjura PE, Matsumura M, Wozniak JA, Matthews BW Biochemistry. 1990 Mar 13;29(10):2592-8. PMID:2334683^[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Moussa SH, Kuznetsov V, Tran TA, Sacchettini JC, Young R. Protein determinants of phage T4 lysis inhibition. Protein Sci. 2012 Apr;21(4):571-82. doi: 10.1002/pro.2042. Epub 2012 Mar 2. PMID:22389108 doi:http://dx.doi.org/10.1002/pro.2042
↑ Pjura PE, Matsumura M, Wozniak JA, Matthews BW. Structure of a thermostable disulfide-bridge mutant of phage T4 lysozyme shows that an engineered cross-link in a flexible region does not increase the rigidity of the folded protein. Biochemistry. 1990 Mar 13;29(10):2592-8. PMID:2334683

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1l35"

@@ Line 3: / Line 3: @@
 <StructureSection load='1l35' size='340' side='right'caption='[[1l35]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1l35]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bpt4 Bpt4]. The September 2000 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Lysozyme''  by David S. Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2000_9 10.2210/rcsb_pdb/mom_2000_9]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1L35 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1L35 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1l35]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_virus_T4 Escherichia virus T4]. The September 2000 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Lysozyme''  by David S. Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2000_9 10.2210/rcsb_pdb/mom_2000_9]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1L35 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1L35 FirstGlance]. <br>
-</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2lzm|2lzm]], [[1l01|1l01]], [[1l02|1l02]], [[1l03|1l03]], [[1l04|1l04]], [[1l05|1l05]], [[1l06|1l06]], [[1l07|1l07]], [[1l08|1l08]], [[1l09|1l09]], [[1l10|1l10]], [[1l11|1l11]], [[1l12|1l12]], [[1l13|1l13]], [[1l14|1l14]], [[1l15|1l15]], [[1l16|1l16]], [[1l17|1l17]], [[1l18|1l18]], [[1l19|1l19]], [[1l20|1l20]], [[1l21|1l21]], [[1l22|1l22]], [[1l23|1l23]], [[1l24|1l24]], [[1l25|1l25]], [[1l26|1l26]], [[1l27|1l27]], [[1l28|1l28]], [[1l29|1l29]], [[1l30|1l30]], [[1l31|1l31]], [[1l32|1l32]], [[1l33|1l33]], [[1l34|1l34]], [[1l36|1l36]]</div></td></tr>
+</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1l35 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1l35 OCA], [https://pdbe.org/1l35 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1l35 RCSB], [https://www.ebi.ac.uk/pdbsum/1l35 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1l35 ProSAT]</span></td></tr>
-<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Lysozyme Lysozyme], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.17 3.2.1.17] </span></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1l35 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1l35 OCA], [https://pdbe.org/1l35 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1l35 RCSB], [https://www.ebi.ac.uk/pdbsum/1l35 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1l35 ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[https://www.uniprot.org/uniprot/LYS_BPT4 LYS_BPT4]] Helps to release the mature phage particles from the cell wall by breaking down the peptidoglycan.
+[https://www.uniprot.org/uniprot/ENLYS_BPT4 ENLYS_BPT4] Endolysin with lysozyme activity that degrades host peptidoglycans and participates with the holin and spanin proteins in the sequential events which lead to the programmed host cell lysis releasing the mature viral particles. Once the holin has permeabilized the host cell membrane, the endolysin can reach the periplasm and break down the peptidoglycan layer.<ref>PMID:22389108</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 36: / Line 34: @@
 __TOC__
 </StructureSection>
-[[Category: Bpt4]]
+[[Category: Escherichia virus T4]]
 [[Category: Large Structures]]
 [[Category: Lysozyme]]
 [[Category: RCSB PDB Molecule of the Month]]
-[[Category: Matsumura, M]]
+[[Category: Matsumura M]]
-[[Category: Matthews, B W]]
+[[Category: Matthews BW]]
-[[Category: Pjura, P E]]
+[[Category: Pjura PE]]
-[[Category: Wozniak, J A]]
+[[Category: Wozniak JA]]

1l35

From Proteopedia

Current revision

STRUCTURE OF A THERMOSTABLE DISULFIDE-BRIDGE MUTANT OF PHAGE T4 LYSOZYME SHOWS THAT AN ENGINEERED CROSSLINK IN A FLEXIBLE REGION DOES NOT INCREASE THE RIGIDITY OF THE FOLDED PROTEIN

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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