protein localization to T-tubule 2012-10-08T17:10:29Z biological_process protein localization to T tubule protein localisation to T-tubule GO:0036371 protein localization to transverse tubule bf A process in which a protein is transported to, or maintained in, the T-tubule. The T-tubule is an invagination of the plasma membrane of a muscle cell that extends inward from the cell surface around each myofibril. protein localization to plasma membrane