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1Whb Lichtarge Lab 2006 Pages 1–5 1whb Evolutionary trace report by report maker January 2, 2010 4.3.3 DSSP 4 4.3.4 HSSP 4 4.3.5 LaTex 4 4.3.6 Muscle 4 4.3.7 Pymol 4 4.4 Note about ET Viewer 5 4.5 Citing this work 5 4.6 About report maker 5 4.7 Attachments 5 1 INTRODUCTION From the original Protein Data Bank entry (PDB id 1whb): Title: Solution structure of the rhodanese-like domain in human ubiquitin specific protease 8 (ubp8) Compound: Mol id: 1; molecule: kiaa0055; chain: a; fragment: rhodanese-like domain; synonym: ubiquitin specific protease 8, ubp8; ec: 3.1.2.15; engineered: yes Organism, scientific name: Homo Sapiens; 1whb contains a single unique chain 1whbA (157 residues long). This is an NMR-determined structure – in this report the first model in the file was used. CONTENTS 1 Introduction 1 2 CHAIN 1WHBA 2.1 P40818 overview 2 Chain 1whbA 1 2.1 P40818 overview 1 From SwissProt, id P40818, 98% identical to 1whbA: 2.2 Multiple sequence alignment for 1whbA 1 Description: Ubiquitin carboxyl-terminal hydrolase 8 (EC 3.1.2.15) 2.3 Residue ranking in 1whbA 1 (Ubiquitin thiolesterase 8) (Ubiquitin-specific processing protease 8) 2.4 Top ranking residues in 1whbA and their position on (Deubiquitinating enzyme 8) (hUBPy). the structure 2 Organism, scientific name: Homo sapiens (Human). 2.4.1 Clustering of residues at 26% coverage. 2 Taxonomy: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; 2.4.2 Possible novel functional surfaces at 26% Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; coverage. 2 Catarrhini; Hominidae; Homo. Function: Hydrolase that can remove conjugated ubiquitin from pro- 3 Notes on using trace results 3 teins and therefore plays an important regulatory role at the level of 3.1 Coverage 3 protein turnover by preventing degradation. Involved in cell prolife- 3.2 Known substitutions 3 ration. Probably regulates the stability of STAM2 and RASGRF1. 3.3 Surface 3 Required to enter into S phase in response to serum stimulation. May 3.4 Number of contacts 3 regulate T-cell anergy mediated by RNF128 via the formation of a 3.5 Annotation 3 complex containing RNF128 and STAM2. 3.6 Mutation suggestions 3 Catalytic activity: Ubiquitin C-terminal thiolester + H(2)O = ubi- quitin + a thiol. 4 Appendix 4 Subunit: Forms a ternary complex with RNF128 and OTUB1. 4.1 File formats 4 Interacts with the SH3 domain of STAM2. Interacts with RASGRF1. 4.2 Color schemes used 4 Induction: Upon growth stimulation in starved human fibroblasts. 4.3 Credits 4 Decreases in response to growth arrest induced by cell-cell contact. 4.3.1 Alistat 4 Similarity: Belongs to the peptidase C19 family. 4.3.2 CE 4 Similarity: Contains 1 rhodanese domain. 1 Lichtarge lab 2006 residues (see Appendix for the coloring scheme). A Pymol script for producing this figure can be found in the attachment. Fig. 1. Residues 1-157 in 1whbA colored by their relative importance. (See Appendix, Fig.5, for the coloring scheme.) About: This Swiss-Prot entry is copyright. It is produced through a collaboration between the Swiss Institute of Bioinformatics and the EMBL outstation - the European Bioinformatics Institute. There are no restrictions on its use as long as its content is in no way modified and this statement is not removed. 2.2 Multiple sequence alignment for 1whbA For the chain 1whbA, the alignment 1whbA.msf (attached) with 13 sequences was used. The alignment was downloaded from the HSSP database, and fragments shorter than 75% of the query as well as duplicate sequences were removed. It can be found in the attachment to this report, under the name of 1whbA.msf. Its statistics, from the Fig. 2. Residues in 1whbA, colored by their relative importance. Clockwise: alistat program are the following: front, back, top and bottom views. Format: MSF Number of sequences: 13 2.4.1 Clustering of residues at 26% coverage. Fig. 3 shows the Total number of residues: 1968 top 26% of all residues, this time colored according to clusters they Smallest: 140 belong to. The clusters in Fig.3 are composed of the residues listed Largest: 157 in Table 1. Average length: 151.4 Alignment length: 157 Table 1. Average identity: 48% cluster size member Most related pair: 94% color residues Most unrelated pair: 27% red 36 19,22,36,37,39,43,47,55,56 Most distant seq: 53% 59,60,73,81,84,87,91,92,93 94,95,108,111,113,115,118 133,134,135,136,138,140,142 Furthermore, 13% of residues show as conserved in this alignment. 143,148,150,151 The alignment consists of 38% eukaryotic ( 23% vertebrata, 15% arthropoda) sequences. (Descriptions of some sequences were not Table 1. Clusters of top ranking residues in 1whbA. readily available.) The file containing the sequence descriptions can be found in the attachment, under the name 1whbA.descr. 2.4.2 Possible novel functional surfaces at 26% coverage. One 2.3 Residue ranking in 1whbA group of residues is conserved on the 1whbA surface, away from (or The 1whbA sequence is shown in Fig. 1, with each residue colored susbtantially larger than) other functional sites and interfaces reco- according to its estimated importance. The full listing of residues gnizable in PDB entry 1whb. It is shown in Fig. 4. The right panel in 1whbA can be found in the file called 1whbA.ranks sorted in the shows (in blue) the rest of the larger cluster this surface belongs to. attachment. The residues belonging to this surface ”patch” are listed in Table 2.4 Top ranking residues in 1whbA and their position on 2, while Table 3 suggests possible disruptive replacements for these residues (see Section 3.6). the structure In the following we consider residues ranking among top 26% of residues in the protein (the closest this analysis allows us to get to 25%). Figure 2 shows residues in 1whbA colored by their importance: bright red and yellow indicate more conserved/important 2 Table 2. continued res type substitutions(%) cvg 95 W W(92)Y(7) 0.21 136 E E(92)K(7) 0.21 60 I I(84)L(15) 0.22 151 V V(84)Y(15) 0.22 Table 2. Residues forming surface ”patch” in 1whbA. Table 3. res type disruptive mutations 37 D (R)(FWH)(KYVCAG)(TQM) 39 R (TD)(SYEVCLAPIG)(FMW)(N) 43 D (R)(FWH)(KYVCAG)(TQM) 55 V (KYER)(QHD)(N)(FTMW) 56 P (YR)(TH)(SKECG)(FQWD) 73 L (YR)(TH)(SKECG)(FQWD) 94 D (R)(FWH)(KYVCAG)(TQM) 133 G (KER)(FQMWHD)(NYLPI)(SVA) 148 N (Y)(FTWH)(SEVCARG)(MD) Fig. 3. Residues in 1whbA, colored according to the cluster they belong to: 59 A (YR)(KE)(H)(QD) red, followed by blue and yellow are the largest clusters (see Appendix for 150 K (Y)(FW)(T)(VCAHG) the coloring scheme). Clockwise: front, back, top and bottom views. The corresponding Pymol script is attached. 95 W (K)(E)(Q)(D) 136 E (FW)(YH)(VCAG)(T) 60 I (YR)(TH)(SKECG)(FQWD) 151 V (K)(ER)(Q)(D) Table 3. Disruptive mutations for the surface patch in 1whbA. 3 NOTES ON USING TRACE RESULTS 3.1 Coverage Trace results are commonly expressed in terms of coverage: the resi- due is important if its “coverage” is small - that is if it belongs to Fig. 4. A possible active surface on the chain 1whbA. The larger cluster it some small top percentage of residues [100% is all of the residues belongs to is shown in blue. in a chain], according to trace. The ET results are presented in the form of a table, usually limited to top 25% percent of residues (or to some nearby percentage), sorted by the strength of the presumed Table 2. evolutionary pressure. (I.e., the smaller the coverage, the stronger the res type substitutions(%) cvg pressure on the residue.) Starting from the top of that list, mutating a 37 D D(100) 0.13 couple of residues should affect the protein somehow, with the exact 39 R R(100) 0.13 effects to be determined experimentally. 43 D D(100) 0.13 55 V V(100) 0.13 3.2 Known substitutions 56 P P(100) 0.13 One of the table columns is “substitutions” - other amino acid types 73 L L(100) 0.13 seen at the same position in the alignment. These amino acid types 94 D D(100) 0.13 may be interchangeable at that position in the protein, so if one wants 133 G G(100) 0.13 to affect the protein by a point mutation, they should be avoided. For 148 N N(100) 0.13 example if the substitutions are “RVK” and the original protein has 59 A L(46)A(53) 0.17 an R at that position, it is advisable to try anything, but RVK. Conver- 150 K S(46)K(53) 0.17 sely, when looking for substitutions which will not affect the protein, continued in next column one may try replacing, R with K, or (perhaps more surprisingly), with V. The percentage of times the substitution appears in the alignment is given in the immediately following bracket. No percentage is given in the cases when it is smaller than 1%. This is meant to be a rough 3 guide - due to rounding errors these percentages often do not add up to 100%. 3.3 Surface To detect candidates for novel functional interfaces, first we look for COVERAGE residues that are solvent accessible (according to DSSP program) by ˚ 2 at least 10A , which is roughly the area needed for one water mole- V cule to come in the contact with the residue.
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