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Transmembrane Protein Inter-Helical Residue Contacts Prediction Using Transductive Support Vector Machines

12 pagesPublished: May 1, 2023

Abstract

Protein functions are strongly related to their 3D structure. Therefore, it is crucial to identify their structure to understand how they behave. Studies have shown that numerous numbers of proteins cross a biological membrane, called Transmembrane (TM) proteins, and many of them adopt alpha helices shape. Unlike the current contact prediction methods that use inductive learning to predict transmembrane protein inter-helical residues contact, we adopt a transductive learning approach. The idea of transductive learning can be very useful when the test set is much bigger than the training set, which is usually the case in amino acids residues contacts prediction. We test this approach on a set of transmembrane protein sequences to identify helix-helix residues contacts, compare transductive and inductive approaches, and identify conditions and limitations where TSVM outperforms inductive SVM. In addition, we investigate the performance degradation of the traditional TSVM and explore the proposed solutions in the literature. Moreover, we propose an early stop technique that can outperform the state of art TSVM and produce a more accurate prediction.

Keyphrases: inductive vs transductive svm, inter helical residue contacts, transductive support vector machines, transmembrane protein

In: Hisham Al-Mubaid, Tamer Aldwairi and Oliver Eulenstein (editors). Proceedings of International Conference on Bioinformatics and Computational Biology (BICOB-2023), vol 92, pages 35-46.

BibTeX entry
@inproceedings{BICOB-2023:Transmembrane_Protein_Inter_Helical,
  author    = {Bander Almalki and Aman Sawhney and Li Liao},
  title     = {Transmembrane Protein Inter-Helical Residue Contacts Prediction Using Transductive Support Vector Machines},
  booktitle = {Proceedings of International Conference on Bioinformatics and Computational Biology (BICOB-2023)},
  editor    = {Hisham Al-Mubaid and Tamer Aldwairi and Oliver Eulenstein},
  series    = {EPiC Series in Computing},
  volume    = {92},
  publisher = {EasyChair},
  bibsource = {EasyChair, https://easychair.org},
  issn      = {2398-7340},
  url       = {/publications/paper/bwLw},
  doi       = {10.29007/3ztg},
  pages     = {35-46},
  year      = {2023}}
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