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Descriptor English: Complement Pathway, Classical
Descriptor Spanish: Vía Clásica del Complemento
Descriptor vía clásica del complemento
Entry term(s) vía del complemento clásica
Scope note: Activación del complemento que comienza con la unión del COMPLEMENTO C1 a COMPLEJOS ANTÍGENO-ANTICUERPO en la subunidad C1Q del COMPLEMENTO. Se llega así a la activación secuencial de las subunidades C1R y C1S DEL COMPLEMENTO. C1S activada escinde el COMPLEMENTO C4 y COMPLEMENTO C2 formando la CONVERTASA C3 clásica (C4B2A) unida a la membrana y la posterior CONVERTASA C5 (C4B2A3B), lo que lleva a la escisión del COMPLEMENTO C5 y al ensamblaje del COMPLEJO DE ATAQUE A LA MEMBRANA DEL COMPLEMENTO.
Descriptor Portuguese: Via Clássica do Complemento
Descriptor French: Voie classique d'activation du complément
Entry term(s): Classical Complement Activation Pathway
Classical Complement Pathway
Complement Activation Pathway, Classical
Tree number(s): G12.274.698
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/D003171
Scope note: Complement activation initiated by the binding of COMPLEMENT C1 to ANTIGEN-ANTIBODY COMPLEXES at the COMPLEMENT C1Q subunit. This leads to the sequential activation of COMPLEMENT C1R and COMPLEMENT C1S subunits. Activated C1s cleaves COMPLEMENT C4 and COMPLEMENT C2 forming the membrane-bound classical C3 CONVERTASE (C4B2A) and the subsequent C5 CONVERTASE (C4B2A3B) leading to cleavage of COMPLEMENT C5 and the assembly of COMPLEMENT MEMBRANE ATTACK COMPLEX.
Allowable Qualifiers: DE drug effects
ES ethics
GE genetics
IM immunology
PH physiology
RE radiation effects
Previous Indexing: Complement (1966-1978)
Complement Fixation Tests (1966-1978)
Public MeSH Note: 91; was see under COMPLEMENT ACTIVATION 1979-90
History Note: 91(79); was see under COMPLEMENT ACTIVATION 1979-90
DeCS ID: 3217
Unique ID: D003171
NLM Classification: QW 680
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 1991/01/01
Date of Entry: 1977/12/02
Revision Date: 2016/06/23
Complement Pathway, Classical - Preferred
Concept UI M0004923
Scope note Complement activation initiated by the binding of COMPLEMENT C1 to ANTIGEN-ANTIBODY COMPLEXES at the COMPLEMENT C1Q subunit. This leads to the sequential activation of COMPLEMENT C1R and COMPLEMENT C1S subunits. Activated C1s cleaves COMPLEMENT C4 and COMPLEMENT C2 forming the membrane-bound classical C3 CONVERTASE (C4B2A) and the subsequent C5 CONVERTASE (C4B2A3B) leading to cleavage of COMPLEMENT C5 and the assembly of COMPLEMENT MEMBRANE ATTACK COMPLEX.
Preferred term Complement Pathway, Classical
Entry term(s) Classical Complement Activation Pathway
Classical Complement Pathway
Complement Activation Pathway, Classical



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