Subcellular localization of mammalian type II membrane proteins

Rajith N. Aturaliya, J. Lynn Fink, Melissa J. Davis, Melvena S. Teasdale, Kelly A. Hanson, Kevin C. Miranda, Alistair R.R. Forrest, Sean M. Grimmond, Harukazu Suzuki, Mutsumi Kanamori-Katayama, Chikatoshi Kai, Jun Kawai, Piero Carninci, Yoshihide Hayashizaki, Rohan D. Teasdale

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


Application of a computational membrane organization prediction pipeline, MemO, identified putative type II membrane proteins as proteins predicted to encode a single alpha-helical transmembrane domain (TMD) and no signal peptides. MemO was applied to RIKEN's mouse isoform protein set to identify 1436 non-overlapping genomic regions or transcriptional units (TUs), which encode exclusively type II membrane proteins. Proteins with overlapping predicted InterPro and TMDs were reviewed to discard false positive predictions resulting in a dataset comprised of 1831 transcripts in 1408 TUs. This dataset was used to develop a systematic protocol to document subcellular localization of type II membrane proteins. This approach combines mining of published literature to identify subcellular localization data and a high-throughput, polymerase chain reaction (PCR)-based approach to experimentally characterize subcellular localization. These approaches have provided localization data for 244 and 169 proteins. Type II membrane proteins are localized to all major organelle compartments; however, some biases were observed towards the early secretory pathway and punctate structures. Collectively, this study reports the subcellular localization of 26% of the defined dataset. All reported localization data are presented in the LOCATE database (

Original languageEnglish
Pages (from-to)613-625
Number of pages13
Issue number5
Publication statusPublished - May 2006
Externally publishedYes


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