Protein translocation: what's the problem?
We came together in Leeds to commemorate and celebrate the life and achievements of Prof. Stephen Baldwin. For many years we, together with Sheena Radford and Roman Tuma (colleagues also of the University of Leeds), have worked together on the problem of protein translocation through the essential and ubiquitous Sec system. Inspired and helped by Steve we may finally be making progress. My seminar described our latest hypothesis for the molecular mechanism of protein translocation, supported by results collected in Bristol and Leeds on the tractable bacterial secretion process-commonly known as the Sec system; work that will be published elsewhere. Below is a description of the alternative and contested models for protein translocation that we all have been contemplating for many years. This review will consider their pros and cons.
School of Biochemistry, University of Bristol, University Walk, BS8 1TD, U.K.
Robin A
RA
Corey
School of Biochemistry, University of Bristol, University Walk, BS8 1TD, U.K.
William J
WJ
Allen
School of Biochemistry, University of Bristol, University Walk, BS8 1TD, U.K. ian.collinson@bristol.ac.uk.
Ian
I
Collinson
D000818:Animals; D001105:Archaea / Q000378:metabolism; D019843:Archaeal Proteins / Q000378:metabolism; D001419:Bacteria / Q000378:metabolism; D001426:Bacterial Proteins / Q000378:metabolism; D056890:Eukaryota / Q000378:metabolism; D006801:Humans; D021381:Protein Transport; D000069816:SEC Translocation Channels / Q000378:metabolism*
D019843:Archaeal Proteins; D001426:Bacterial Proteins; D000069816:SEC Translocation Channels
ATPase; SecY; energy transduction; membrane protein complex; protein translocation; secretion