This document provides methods and materials related to transcription terminators. For example, methods and materials related to transcription terminators and nucleic acid molecules (e.g., vectors and constructs) that contain a nucleic acid sequence that encodes a polypeptide operably linked to a transcription terminator are provided. In addition, plants, plant cells, and plant seeds having a nucleic acid sequence that encodes a polypeptide operably linked to a transcription terminator are provided.