MeSH Browser

MeSH Heading: Isoenzymes
Tree Number(s): D08.811.348; D12.776.800.300
Unique ID: D007527
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D007527
Annotation: IM general only; coordinate NIM with specific enzyme (IM)
Scope Note: Structurally related forms of an enzyme. Each isoenzyme has the same mechanism and classification, but differs in its chemical, physical, or immunological characteristics.
Entry Term(s): Alloenzyme; Alloenzymes; Allozyme; Allozymes; Isoenzyme; Isozyme; Isozymes
Public MeSH Note: 67
History Note: 67(65)
Date Established: 1967/01/01
Date of Entry: 1999/01/01
Revision Date: 2020/05/27

Allowable Qualifiers: administration & dosage (AD)

adverse effects (AE)

analysis (AN)

antagonists & inhibitors (AI)

biosynthesis (BI)

blood (BL)

cerebrospinal fluid (CF)

chemical synthesis (CS)

chemistry (CH)

classification (CL)

deficiency (DF)

drug effects (DE)

economics (EC)

genetics (GE)

history (HI)

immunology (IM)

isolation & purification (IP)

metabolism (ME)

pharmacokinetics (PK)

pharmacology (PD)

physiology (PH)

poisoning (PO)

radiation effects (RE)

standards (ST)

supply & distribution (SD)

therapeutic use (TU)

toxicity (TO)

ultrastructure (UL)

urine (UR)

Concept UI: M0011758
Scope Note: Structurally related forms of an enzyme. Each isoenzyme has the same mechanism and classification, but differs in its chemical, physical, or immunological characteristics.
Terms: Isoenzymes Preferred Term
Term UI T022623
Date01/01/1999
LexicalTag NON
ThesaurusID NLM (1965); Isoenzyme
Term UI T000997306
Date11/18/2019
LexicalTag NON
ThesaurusID NLM (2021); Isozyme
Term UI T000997307
Date11/18/2019
LexicalTag NON
ThesaurusID NLM (2021); Isozymes
Term UI T022624
Date05/12/1988
LexicalTag NON
ThesaurusID UNK (19XX)

Concept UI: M0514374
Scope Note: Isoenzymes that are generated by different alleles of the same gene.
Terms: Alloenzymes Preferred Term
Term UI T707562
Date10/11/2007
LexicalTag NON
ThesaurusID NLM (2009); Alloenzyme
Term UI T000997308
Date11/18/2019
LexicalTag NON
ThesaurusID NLM (2021); Allozyme
Term UI T000997309
Date11/18/2019
LexicalTag NON
ThesaurusID NLM (2021); Allozymes
Term UI T707563
Date10/11/2007
LexicalTag NON
ThesaurusID NLM (2009)

Isoenzymes MeSH Descriptor Data 2025