Answers.Body: <p>As mentioned by others, it's the number of amino acids. Alternative measurements could be in Angstroms or similar, but that would require at least an approximate structure.</p>
  
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Answers.CreationDate: 2020-12-20T14:20:57.067Z
Answers.LastActivityDate: 2020-12-20T14:20:57.067Z
Answers.UserDisplayName: Devon Ryan
Body: <p>Sorry if this question is obvious - I'm not familiar with proteomics so I'm not sure of the standard units.</p>
  <p><a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2805705/" rel="nofollow noreferrer">In this paper</a>, it talks about using the length of a protein to calculate the NSAF value.  However, it doesn't specify the units.  Would it be peptides, amino acids or nucleic acids? Or something else?</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-12-18T17:13:03.647Z
Comments.Text: Number of amino acids.
Comments.UserDisplayName: Matteo Ferla
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-12-19T01:16:03.257Z
Comments.Text: The paper clearly states `protein length (number of amino acids)`.
Comments.UserDisplayName: Ram RS
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-12-19T11:48:05.770Z
Comments.Text: Isn't this exactly the type of questions we like on this site?
Comments.UserDisplayName: Kamil S Jaron
Tags: <proteins><proteomics>
Title: What unit is the length of a protein measured in?
ThreadText: # What unit is the length of a protein measured in?
  
  (Asked by: username_0 on 2020-12-18)
  
  Sorry if this question is obvious - I'm not familiar with proteomics so I'm not sure of the standard units.
  
  [In this paper](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2805705/), it talks about using the length of a protein to calculate the NSAF value. However, it doesn't specify the units. Would it be peptides, amino acids or nucleic acids? Or something else?
  
  **Tags:** proteins, proteomics
  
  > **Comments:**
  > **username_1**: Number of amino acids.  
  > **username_2**: The paper clearly states `protein length (number of amino acids)`.  
  > **username_3**: Isn't this exactly the type of questions we like on this site?  
  
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  ## 1 answers
  
  ### Answer by username_4 on 2020-12-20. Score: 1 | Accepted answer
  
  As mentioned by others, it's the number of amino acids. Alternative measurements could be in Angstroms or similar, but that would require at least an approximate structure.
  
  
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