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词条 Enolase superfamily
释义

  1. Members

  2. References

  3. External links

The enolase superfamily is a superfamily of enzymes, members of which catalyse a range of reactions.

The enolase superfamily includes enzymes that catalyse a wide variety of reactions and performing diverse roles in metabolism. However, the reactions catalysed share the common chemical step of abstraction of a proton from a carbon adjacent to a carboxylic acid and a requirement of a divalent metal ion[1]. This diversity of functions is in contrast to many families of enzymes whose members catalyse similar chemical reactions on different substrates.

Members

  • Enolase
  • Mandelate racemase (MR)
  • Muconate lactonizing enzyme (MLE)

The primary sequences of MR and MLE, approximately 25% identical, are related but significantly different; whereas their three-dimensional structures are similar. The enzyme enolase has a more distant, but nevertheless clear, relationship to MLE and MR. The enolase superfamily has served as a model superfamily for understanding enzyme function and is one of the protein families under study by the Enzyme Function Initiative (EFI).

References

1. ^{{cite journal|last1=Babbitt|first1=Patricia|last2=Hasson|first2=Miriam|last3=Wedekind|first3=Joseph|last4=Palmer|first4=David|last5=Barrett|first5=William|last6=Reed|first6=George|last7=Rayment|first7=Ivan|last8=Ringe|first8=Dagmar|last9=Kenyon|first9=George|last10=Gerlt|first10=John|title=The Enolase Superfamily: A General Strategy for Enzyme-Catalyzed Abstraction of the Alpha-Protons of Carboxylic Acids|journal=Biochemistry|date=1996|volume=51|issue=35|pages=16489-16501|doi=10.1021/bi9616413}}

External links

  • [https://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=9724714&query_hl=35&itool=pubmed_docsum Evolution of an enzyme active site: the structure of a new crystal form of muconate lactonizing enzyme compared with mandelate racemase and enolase.]
  • Enolase Superfamily overview from the EFI
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3 : Enzymes|Enols|Protein superfamilies

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