Online tutorial

Pfam

Creating protein families

Time to complete:

0.5 hour


Written by:

Last reviewed:

February 2025


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Detection of conserved evolutionary units by profile hidden Markov Models (HMM): discover how different types of entries are created in the Pfam database. 

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Who is this course for?

This is an intermediate course which requires familiarity with the Pfam in the InterPro website. For a more general overview of the different functions available from Pfam please refer to Pfam:Quick Tour. Pfam is a large collection of protein families, each represented by multiple sequence alignments and profile hidden Markov models (HMMs), which in combination cover the majority of UniProt sequences. In this course we will present the different types of entries in Pfam and describe the process of creating profile HMMs for all entry types except Tandem Repeats (TR). Due to the inherit complexities of generating TR entries, these are discussed in a separate course found here.

An undergraduate-level knowledge of biology would be an advantage for this course and familiarity with the Pfam database is required.

What will I achieve?

By the end of the course you will be able to:

  • List the six Pfam entry categories
  • Describe the concept of Hidden Markov Models
  • Outline the process of creating a Pfam model
  • List the features that define a clan of entries

What resources do I need?

There are no specific resources required to complete this course.

DOI: 10.6019/TOL.Pfam_fams-t.2018.00001.1