Chemicals and Drugs

mu-Crystallins

A subclass of crystallins expressed highly in lens of diurnal Australian MARSUPIALS and in neural tissue, muscle, and kidney in humans. It is not a structural protein accounting for the transparency of the human lens unlike other crystallins but instead plays a role in thyroid hormone bioavailability. It is also a cerebral ketimine reductase which reduces cyclic imines (e.g., DELTA(1)-PIPERIDINE-2-CARBOXYLIC ACID; CYSTATHIONINE KETIMINE and LANTHIONINE KETIMINE) in mammalian brain. Mutations in mu-crystallins are associated with an autosomal dominant NONSYNDROMIC DEAFNESS.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A subclass of crystallins expressed highly in lens of diurnal Australian MARSUPIALS and in neural tissue, muscle, and kidney in humans. It is not a structural protein accounting for the transparency of the human lens unlike other crystallins but instead plays a role in thyroid hormone bioavailability. It is also a cerebral ketimine reductase which reduces cyclic imines (e.g., DELTA(1)-PIPERIDINE-2-CARBOXYLIC ACID; CYSTATHIONINE KETIMINE and LANTHIONINE KETIMINE) in mammalian brain. Mutations in mu-crystallins are associated with an autosomal dominant NONSYNDROMIC DEAFNESS.

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MeSH Record

Synonyms

13 entry terms
  • CRYM Protein
  • Crystallin mu
  • Ketimine Reductase mu-Crystallin
  • NADP-Regulated Thyroid Hormone Binding Protein
  • THBP Protein
  • Ketimine Reductase mu Crystallin
  • NADP Regulated Thyroid Hormone Binding Protein
  • Protein, CRYM
  • Protein, THBP
  • Reductase mu-Crystallin, Ketimine
  • mu Crystallins
  • mu, Crystallin
  • mu-Crystallin, Ketimine Reductase

MeSH Record

Aspects Covered

29 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, analysis, antagonists & inhibitors, biosynthesis, blood, cerebrospinal fluid, chemical synthesis, chemistry, classification, deficiency, drug effects, economics, genetics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, physiology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, ultrastructure, urine.

MeSH Record

History Note

2022(1992)

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AMA Style

References

  1. National Library of Medicine. mu-Crystallins. Medical Subject Headings (MeSH). 2026. Unique ID D000090803. http://id.nlm.nih.gov/mesh/2026/D000090803
  2. mu-Crystallins. In: Wikidata. https://www.wikidata.org/wiki/Q111327732