From PDB Protein Data Bank:
Crystal structure of lysin B from Mycobacteriophage D29
1) download files:FASTA Sequence, PDB File (Text)
2)examine the protein by mEmboss software
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEipc3RSGYkrd7PeamBGAePnJ0rv0Mol9xtufCBXmgYIIF829ZUSvwrbVGZZdV8YtrN8KB9gneZo6NU7L3P64LK2A_HqfRhxZ8GEuSIOjwK26usrl3-8OCSEBtsoN5bN9BnHEQAwFknLMXA/s400/struttura+insieme.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiaMbgMgBDoWwBdpO3pruY39SOm0wbGHQTQ2XiPqssAqXQBuGpwmXfXLLPNMg8ReFu3ZsTQBZ6WHJfjc-l-IVFR0AD45RgwyaylVluv_dliT3uEw0w1rlqrELXhaa5dMcD3sKyLHeYJpFU/s400/carica+insieme.jpg)
3) if there are the transmembrane regions use MPEX software and Geneious
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj5QLOmQ3pGbSFNZVwLIj0ovsDEqG4EYwVPgMIXQAS7mQqKoCbg4JTIU52OCpASAMmBZSKVYZPkK72Og6PVr-XZbDjBMXjng-Rhx3OK79vUC7tPaTJKZ8hGdkPYzeaMEeZ447NE0PmtgbU/s400/trans+MembraneD29p09.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgiQQ3R33KRlZyW8lThT-fAhfqZFQQqatxI1PBJTd7ZPJcI5Pxfrp33yaUmvo3_g6xiQ0JxiuNJq2S8lG7pPG8a3yNEvonfLoFVQqSSw42KFcSYnXMe2pWgm6d52pdpVtz1wP3r0sLexjs/s400/D29gp12.jpg)
4)Download the protein file PDB in a Protein viewer software and observe
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEizfoSE_AJAHIgHQsemOfQCCLj3EjCUQjetOYmNZLruaoVngGjfgBOM-ibtb-qBHaBr6xFjKd_cOsxsPeZEd3JIYXecFb4GTSgmDiweEmZRjiP6DK0yk0F2NaDZ388y_GAWKTTpdrqNFmo/s400/mmdbimage.png)
These protein models are mine:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjNPN3v7wekDQ9G9GAVewqzAtPPDO1tRSk6snbnFsa42WDJ5dqGbyANoZsbFmiRpXBJkxeVBjmYO4P4gI3IbGUt_MOguu4Z1Ls7rXNh71zI3KA43aHkq_1BEdrsfnqVEzmPqzs_0pDbZd4/s400/ricostruito.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiZGSBXFHHLzoK14VcfAemd0ce6Dl15Hh34d5xZmrUB4upZ6HTH7eKV5g61Nly2cV4vzeGC8gzY1JNhTqcXPsMjauJjNasRZTQwf9Yh9k9PX2mCeESA0Y5ZFsZuPeWHMPOMDo3uMhFQ3Fg/s400/Lisina.jpg)