What is the Best Term for the Structure-Function Relationship in Biology?

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Discussion Overview

The discussion revolves around finding a concise term for the relationship between biological structures and their functions. Participants explore various existing terms and concepts, including structure-function relationships and structure-activity relationships, while considering their applicability in different biological contexts.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant suggests that "structure-function relationship" is commonly used in biology, but finds it lengthy and seeks a more appealing term.
  • Another participant mentions the term "structure-activity relationship" (SAR) used in organic chemistry, particularly in drug design, and notes the development of quantitative structure-activity relationship (QSAR) models.
  • A participant questions how to concisely describe the spatial distribution of different chemical properties in proteins and RNAs, suggesting potential applications for this understanding.
  • Discussion includes philosophical perspectives, with one participant referencing biosemiotics and the relationship between matter and meaning in biology, linking it to the structure-function connection.
  • A participant proposes "functional structure" as a potential term, arguing it is self-explanatory and free from other meanings.

Areas of Agreement / Disagreement

Participants express differing views on the best terminology to describe the structure-function relationship, with no consensus reached on a single term. Various perspectives on the implications and applications of these relationships are presented.

Contextual Notes

Some discussions touch on the philosophical implications of structure and function, indicating a complexity in defining these relationships that may depend on specific contexts or interpretations.

BillTre
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Physics has the concepts of mass and energy, and has the combined concept of space-time.
Similarly, biology has lots of information about biological structures (going from big body parts down to the atomic structure of complex molecules.
Additionally, there is a lot known about about biological function. How things work, as manifested by dynamic biological structure.
It is not surprising therefore to hear about structural-functional relationships in biology, but there is not a nice concise term like space-time for this.
Something that would denote a two sides of a coin kind of view of the one thing, the embodiment (or manifestation) of one in the other.
The best I can do is structure-function (or function-structure).
I guess I could use structure-function relationship, but it is a large and complex bunch or words and not too appealing to me. It could be abbreviated to SFR, but I try to avoid abbreviations for basic concepts (not always successful).

I am doing a solicitation of better terms that might work for this.
 
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Structure-function relationships is probably how I've mostly seen this concept referred to in the context of biology. For organic chemistry (specifically drug design), chemists will talk about structure-activity relationship (abbreviated SAR) to discuss how changes to different regions of a drug affects its biological function. The concept is important enough in drug design that quantitative structure-activity relationship (QSAR) frameworks and models have been developed to better formalize the process (e.g. see https://pubs.acs.org/doi/10.1021/jm4004285).

One could argue that structural biology, biochemistry, and maybe even the entire field of chemistry are, at their core, about connecting molecular structure to function (or at least the properties of the molecules).
 
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That's really interesting, @Ygggdrasil!

How is the spatial distribution of different chemical properties (like parts of a protein having different chemical properties and producing different local chemical micro-environments) described concisely?

This could have many applications, but mostly I think of it with respect to a spatial arrangement of different chemical proterties on folded RNAs and proteins (an extreme case of life's ordering of matter).
 
Ygggdrasil said:
One could argue that structural biology, biochemistry, and maybe even the entire field of chemistry are, at their core, about connecting molecular structure to function (or at least the properties of the molecules).
This relationship is at the basis of some issues in theoretical or philosophical biology. Philosophy of biology is not like philosophy of science (considering how and why science works and how it should be done). It is often about the explanations (often philosophical) of more general issues.

One is the relationship of meaning with physical things.
In philosophy, semiotics refers to,among other things, the relationship between matter and meaning.
Biosemiotics considers relationships between matter and function in biology.
In these cases, I generally take function to be the same as the functional meaning of the structure (chemical structure). This seems to piss off some philosophers, but expresses this same kind of structure-function connection in this related field.
In this view, the structure of a chemical has a meaning, which is what it does/can do (kind of similar to a quantum particles probability field).

These things are involved in how processes unfold.
 
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I think I'll be trying out "functional structure" as a term for the biochemical combination of structure and function.
Self-explanatory, not encumbered with other meanings.
 

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