superfamily(redirected from superfamilies)
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1. a taxonomic category sometimes established, subordinate to an order and superior to a family.
2. any of a group of proteins having similarities such as areas of structural homology and believed to descend from the same ancestral gene, such as the superfamily of immunoglobulins.
1. a taxonomic category between an order and a family.
2. any of a group of proteins having similarities such as areas of structural homology and believed to descend from the same ancestral gene.
n. pl. superfami·lies
A taxonomic category of related organisms ranking below an order or its subdivisions and above a family.
superfamilya taxon above a family and below an order.
a group of proteins related in structure but different in function, e.g. immunoglobulin superfamily which includes immunoglobulins, T cell receptor, major histocompatibility class I and II, β2-microglobulin, α/β glycoprotein, neuronal cell-adhesive molecule (N-CAM) and neurocytoplasmic protein 3 (NP3).