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<font face="바탕" size="2">Pfam은 [[ProDom]]에서 진화한 것으로 개념적으로 [[PROSITE]] profile들과 연관된 [[HMM]]들의 집합이다. Pfam 모델들은 전형적으로 완전한 단백질 도메인들에 걸쳐 있으며 HMMER package나 Web-based server로 검색될 수 있다. 현재의 버전은 Pfam(2.1)로 527개의 모델들을 포함하고 있다; 곧 나올 다음 버전 (3.0)에서는 그 숫자가 806개로 증가할 것이다. PROSITE profile과 유사하게 Pfam 모델들은 분명한 [[homolog]]들로부터 출발하여 점차적으로 먼 집단들의 구성원들을 포함시키면서 반복적으로 정련된다. &nbsp;r들의 information-rich descriptor들 때문에 두가지 집합들은 다른 방법으로는 드물게 발견되는 단백질 모티브의 매우 먼 예도 검출한다. PROSITE와는 대조적으로 Pfam entry들은 semi-automatic하게 생성되고, 이것은 비교적 낮은 정밀도를 보여주지만 개정과정은 보다 쉽다. Pfam documentation은 최소한이지만 자주 상응하는 PROSITE entry에 대한 연결이 포함되어 있다. Pfam 모델들과 PROSITE profile들은 상호전환이 이루어질 수 있고, 조합 검색이 가능하다. [[SMART]] 데이터베이스는 신호전달에 포함된 단백질 도메인들에 초점을 맞춘 181개의 HMM들의 독립적인 집합이다. </font>
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<p>The <strong>Pfam</strong> database contains information about protein domains and families. Pfam-A is the manually curated portion of the database that contains over 9,000 entries. For each entry a protein sequence alignment and a hidden Markov model is stored. These hidden Markov models can be used to search sequence databases with the HMMer package written by Sean Eddy. Because the entries in Pfam-A do not cover all known proteins an automatically generated supplement is provided called Pfam-B. Pfam-B is derived from the PRODOM database.</p>
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<p>The database <strong>iPfam</strong> builds on the domain description of Pfam. It investigates if different proteins described together in the protein structure database PDB are close enough to potentially interact.</p>
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<p>&nbsp;</p>
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<h2><span class="mw-headline">See also</span></h2>
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<ul>
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    <li>TrEMBL Database performing an automated protein sequence annotation </li>
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    <li>InterPro Integration of protein domain and protein family databases </li>
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</ul>
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<p>&nbsp;</p>
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<h2><span class="mw-headline">References</span></h2>
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<ul>
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    <li><cite style="FONT-STYLE: normal">Finn RD, Mistry J, Schuster-Bockler B, Griffiths-Jones S, Hollich V, Lassmann T, Moxon S, Marshall M, Khanna A, Durbin R, Eddy SR, Sonnhammer EL, Bateman A (2006). &quot;Pfam: clans, web tools and services&quot;. <em>Nucleic Acids Res.</em> <strong>34</strong>: D247-D251. PMID 16381856.</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.atitle=Pfam%3A+clans%2C+web+tools+and+services&amp;rft.jtitle=Nucleic+Acids+Res.&amp;rft.date=2006&amp;rft.volume=34&amp;rft.au=Finn+RD%2C+Mistry+J%2C+Schuster-Bockler+B%2C+Griffiths-Jones+S%2C+Hollich+V%2C+Lassmann+T%2C+Moxon+S%2C+Marshall+M%2C+Khanna+A%2C+Durbin+R%2C+Eddy+SR%2C+Sonnhammer+EL%2C+Bateman+A&amp;rft.pages=D247-D251">&nbsp;</span> </li>
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</ul>
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<ul>
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    <li><cite style="FONT-STYLE: normal">Finn RD, Marshall M, Bateman A (2005). &quot;iPfam: visualization of protein-protein interactions in PDB at domain and amino acid resolutions&quot;. <em>Bioinformatics</em> <strong>21</strong>: 410-412. PMID 15353450.</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.atitle=iPfam%3A+visualization+of+protein-protein+interactions+in+PDB+at+domain+and+amino+acid+resolutions&amp;rft.jtitle=Bioinformatics&amp;rft.date=2005&amp;rft.volume=21&amp;rft.au=Finn+RD%2C+Marshall+M%2C+Bateman+A&amp;rft.pages=410-412">&nbsp;</span> </li>
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</ul>
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<ul>
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    <li><cite style="FONT-STYLE: normal">Bateman A, Coin L, Durbin R, Finn RD, Hollich V, Griffiths-Jones S, Khanna A, Marshall M, Moxon S, Sonnhammer EL, Studholme DJ, Yeats C, Eddy SR (2004). &quot;The Pfam protein families database&quot;. <em>Nucleic Acids Res.</em> <strong>32(Database issue)</strong>: D138-D141. PMID 14681378.</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.atitle=The+Pfam+protein+families+database&amp;rft.jtitle=Nucleic+Acids+Res.&amp;rft.date=2004&amp;rft.volume=32%28Database+issue%29&amp;rft.au=Bateman+A%2C+Coin+L%2C+Durbin+R%2C+Finn+RD%2C+Hollich+V%2C+Griffiths-Jones+S%2C+Khanna+A%2C+Marshall+M%2C+Moxon+S%2C+Sonnhammer+EL%2C+Studholme+DJ%2C+Yeats+C%2C+Eddy+SR&amp;rft.pages=D138-D141">&nbsp;</span> </li>
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</ul>
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<p>&nbsp;</p>
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<h2><span class="mw-headline">External links</span></h2>
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<ul>
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    <li>Pfam - Protein family database at Sanger Institute UK </li>
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    <li>Pfam - Protein family database at Janelia Farm Research Campus USA </li>
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    <li>Pfam - Protein family database at Center for Genomics and Bioinformatics Sweden </li>
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    <li>iPfam - Interactions of Pfam domains in PDB </li>
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</ul>
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Latest revision as of 21:35, 13 December 2007

The Pfam database contains information about protein domains and families. Pfam-A is the manually curated portion of the database that contains over 9,000 entries. For each entry a protein sequence alignment and a hidden Markov model is stored. These hidden Markov models can be used to search sequence databases with the HMMer package written by Sean Eddy. Because the entries in Pfam-A do not cover all known proteins an automatically generated supplement is provided called Pfam-B. Pfam-B is derived from the PRODOM database.

The database iPfam builds on the domain description of Pfam. It investigates if different proteins described together in the protein structure database PDB are close enough to potentially interact.

 

See also

  • TrEMBL Database performing an automated protein sequence annotation
  • InterPro Integration of protein domain and protein family databases

 

References

  • Finn RD, Mistry J, Schuster-Bockler B, Griffiths-Jones S, Hollich V, Lassmann T, Moxon S, Marshall M, Khanna A, Durbin R, Eddy SR, Sonnhammer EL, Bateman A (2006). "Pfam: clans, web tools and services". Nucleic Acids Res. 34: D247-D251. PMID 16381856. 
  • Finn RD, Marshall M, Bateman A (2005). "iPfam: visualization of protein-protein interactions in PDB at domain and amino acid resolutions". Bioinformatics 21: 410-412. PMID 15353450. 
  • Bateman A, Coin L, Durbin R, Finn RD, Hollich V, Griffiths-Jones S, Khanna A, Marshall M, Moxon S, Sonnhammer EL, Studholme DJ, Yeats C, Eddy SR (2004). "The Pfam protein families database". Nucleic Acids Res. 32(Database issue): D138-D141. PMID 14681378. 

 

External links

  • Pfam - Protein family database at Sanger Institute UK
  • Pfam - Protein family database at Janelia Farm Research Campus USA
  • Pfam - Protein family database at Center for Genomics and Bioinformatics Sweden
  • iPfam - Interactions of Pfam domains in PDB