MeSH Browser

MeSH Heading: Tetrapyrroles
Tree Number(s): D03.383.129.578.840; D03.633.400.909; D04.345.783
Unique ID: D045725
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D045725
Scope Note: Four PYRROLES joined by one-carbon unit linking position 2 of one to position 5 of the next. The conjugated bond system results in PIGMENTATION.
Entry Term(s): Tetrapyrrole
Previous Indexing: Pyrroles (1966-2003)
Public MeSH Note: 2004; TETRAPYRROLES was indexed under PYRROLES 1978-2003
History Note: 2004; use TETRAPYRROLES (NM) 1978-2003
Date Established: 2004/01/01
Date of Entry: 2003/07/09
Revision Date: 2020/08/13

Allowable Qualifiers: administration & dosage (AD)

adverse effects (AE)

agonists (AG)

analysis (AN)

antagonists & inhibitors (AI)

biosynthesis (BI)

blood (BL)

cerebrospinal fluid (CF)

chemical synthesis (CS)

chemistry (CH)

classification (CL)

deficiency (DF)

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)

urine (UR)

Tetrapyrroles MeSH Descriptor Data 2025