isoform

noun
iso·​form | \ ˈī-sə-ˌfȯrm How to pronounce isoform (audio) \

Definition of isoform

: any of two or more functionally similar proteins that have a similar but not an identical amino acid sequence

Examples of isoform in a Sentence

Recent Examples on the Web Vitamin E has eight different isoforms, or types, and each may do slightly different things in our bodies. Cosby Stone, The Conversation, "Vitamin E and vaping injuries: What’s safe in your diet is rarely safe in your lungs," 22 Nov. 2019 To be declared positive, a certain percentage of the resulting isoforms have to appear in a certain range, and that range is down, somewhat, to interpretation. Joe Lindsey, Outside Online, "The Chris Froome Ruling Just Broke Anti-Doping," 3 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'isoform.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of isoform

1983, in the meaning defined above

Keep scrolling for more

Learn More about isoform

Time Traveler for isoform

Time Traveler

The first known use of isoform was in 1983

See more words from the same year

Statistics for isoform

Cite this Entry

“Isoform.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/isoform. Accessed 27 Sep. 2020.

Keep scrolling for more

More Definitions for isoform

isoform

noun
iso·​form | \ ˈī-sə-ˌfȯrm How to pronounce isoform (audio) \

Medical Definition of isoform

: any of two or more functionally similar proteins that have a similar but not identical amino acid sequence and are either encoded by different genes or by RNA transcripts from the same gene which have had different exons removed

Comments on isoform

What made you want to look up isoform? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Challenging Vocabulary Quiz Returns!

  • stylized drawing of woman pole vaulting across gap to get trophy
  • Which is a synonym of fuliginous?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!