opsonin

(redirected from Opsonin proteins)
Also found in: Thesaurus, Medical, Encyclopedia.

op·so·nin

 (ŏp′sə-nĭn)
n.
A substance, such as an antibody or complement protein, that binds to a bacterium or other pathogen and causes it to become more susceptible to the action of phagocytes.

[Latin opsōnāre, to buy provisions (from Greek opsōnein, from opson, condiment, delicacy; see epi in Indo-European roots) + -in.]

opsonin

(ˈɒpsənɪn)
n
(Biochemistry) a constituent of blood serum that renders invading bacteria more susceptible to ingestion by phagocytes in the serum
[C20: from Greek opsōnion victuals]
opsonic adj

op•so•nin

(ˈɒp sə nɪn)

n.
any of several constituents of blood serum, as an antibody or complement, that make invading microorganisms more susceptible to destruction by phagocytes.
[1900–05; < Latin opsōn(ium) victuals]
op•son•ic (ɒpˈsɒn ɪk) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.opsonin - an antibody in blood serum that attaches to invading microorganisms and other antigens to make them more susceptible to the action of phagocytes
blood serum, serum - an amber, watery fluid, rich in proteins, that separates out when blood coagulates
antibody - any of a large variety of proteins normally present in the body or produced in response to an antigen which it neutralizes, thus producing an immune response
Translations
opsonina

op·so·nin

n. opsonina, anticuerpo que al combinarse con un antígeno hace que éste sea más suceptible a los fagocitos.