part of extrinsic component of membrane extrinsic component of thylakoid membrane extrinsic component of plastid thylakoid membrane The component of a plastid thylakoid membrane consisting of gene products and protein complexes that are loosely bound to one of its surfaces, but not integrated into the hydrophobic region. cellular_component GO:0035449 peripheral to plastid thylakoid membrane extrinsic to plastid thylakoid membrane bf 2010-04-16T10:14:24Z extrinsic component of plastid membrane plastid thylakoid membrane