+**B3a** is an identifier for a specific element or subtype within a larger [Classification System](/wiki/classification_system). It denotes a distinct variant often characterized by unique properties or interactions. Its role is pivotal in understanding certain [Biological Processes](/wiki/biological_process).
+## See also
+- [Gene](/wiki/gene)
+- [Protein](/wiki/protein)
+- [Pathway](/wiki/pathway)
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