PMID- 28934129 OWN - NLM STAT- MEDLINE DCOM- 20180515 LR - 20181113 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 18 IP - 10 DP - 2017 Sep 21 TI - A Comprehensive Survey of the Roles of Highly Disordered Proteins in Type 2 Diabetes. LID - 10.3390/ijms18102010 [doi] LID - 2010 AB - Type 2 diabetes mellitus (T2DM) is a chronic and progressive disease that is strongly associated with hyperglycemia (high blood sugar) related to either insulin resistance or insufficient insulin production. Among the various molecular events and players implicated in the manifestation and development of diabetes mellitus, proteins play several important roles. The Kyoto Encyclopedia of Genes and Genomes (KEGG) database has information on 34 human proteins experimentally shown to be related to the T2DM pathogenesis. It is known that many proteins associated with different human maladies are intrinsically disordered as a whole, or contain intrinsically disordered regions. The presented study shows that T2DM is not an exception to this rule, and many proteins known to be associated with pathogenesis of this malady are intrinsically disordered. The multiparametric bioinformatics analysis utilizing several computational tools for the intrinsic disorder characterization revealed that IRS1, IRS2, IRS4, MAFA, PDX1, ADIPO, PIK3R2, PIK3R5, SoCS1, and SoCS3 are expected to be highly disordered, whereas VDCC, SoCS2, SoCS4, JNK9, PRKCZ, PRKCE, insulin, GCK, JNK8, JNK10, PYK, INSR, TNF-alpha, MAPK3, and Kir6.2 are classified as moderately disordered proteins, and GLUT2, GLUT4, mTOR, SUR1, MAPK1, IKKA, PRKCD, PIK3CB, and PIK3CA are predicted as mostly ordered. More focused computational analyses and intensive literature mining were conducted for a set of highly disordered proteins related to T2DM. The resulting work represents a comprehensive survey describing the major biological functions of these proteins and functional roles of their intrinsically disordered regions, which are frequently engaged in protein-protein interactions, and contain sites of various posttranslational modifications (PTMs). It is also shown that intrinsic disorder-associated PTMs may play important roles in controlling the functions of these proteins. Consideration of the T2DM proteins from the perspective of intrinsic disorder provides useful information that can potentially lead to future experimental studies that may uncover latent and novel pathways associated with the disease. FAU - Du, Zhihua AU - Du Z AD - Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, 12901 Bruce B. Downs Blvd. MDC07, Tampa, FL 33620, USA. duzh@szu.edu.cn. AD - Department of Computer Science, College of Computer Science and Software, Shenzhen University, Shenzhen 518060, China. duzh@szu.edu.cn. FAU - Uversky, Vladimir N AU - Uversky VN AUID- ORCID: 0000-0002-4037-5857 AD - Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, 12901 Bruce B. Downs Blvd. MDC07, Tampa, FL 33620, USA. vuversky@health.usf.edu. AD - USF Health Byrd Alzheimer's Research Institute, Morsani College of Medicine, University of South Florida, 12901 Bruce B. Downs Blvd. MDC07, Tampa, FL 33620, USA. vuversky@health.usf.edu. AD - Laboratory of New Methods in Biology, Institute for Biological Instrumentation, Russian Academy of Sciences, Institutskaya str., 7, Pushchino, Moscow 142290, Russia. vuversky@health.usf.edu. LA - eng PT - Journal Article DEP - 20170921 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (Insulin Receptor Substrate Proteins) RN - 0 (Intrinsically Disordered Proteins) RN - 0 (Proteome) SB - IM MH - Amino Acid Sequence MH - Binding Sites MH - Computational Biology/methods MH - Diabetes Mellitus, Type 2/genetics/*metabolism/pathology MH - Gene Expression MH - Gene Ontology MH - Humans MH - Insulin Receptor Substrate Proteins/chemistry/genetics/*metabolism MH - Intrinsically Disordered Proteins/chemistry/genetics/*metabolism MH - Molecular Sequence Annotation MH - Protein Binding MH - Protein Conformation, alpha-Helical MH - Protein Conformation, beta-Strand MH - Protein Interaction Domains and Motifs MH - Protein Interaction Mapping MH - *Protein Processing, Post-Translational MH - Proteome/chemistry/classification/genetics/*metabolism MH - Sequence Alignment MH - Sequence Homology, Amino Acid PMC - PMC5666700 OTO - NOTNLM OT - KEGG database OT - disorder prediction OT - intrinsically disordered protein regions OT - intrinsically disordered proteins OT - posttranslational modifications OT - protein-protein interaction OT - type 2 diabetes mellitus COIS- The authors declare no conflict of interest. EDAT- 2017/09/22 06:00 MHDA- 2018/05/16 06:00 PMCR- 2017/10/01 CRDT- 2017/09/22 06:00 PHST- 2017/07/14 00:00 [received] PHST- 2017/09/04 00:00 [revised] PHST- 2017/09/12 00:00 [accepted] PHST- 2017/09/22 06:00 [entrez] PHST- 2017/09/22 06:00 [pubmed] PHST- 2018/05/16 06:00 [medline] PHST- 2017/10/01 00:00 [pmc-release] AID - ijms18102010 [pii] AID - ijms-18-02010 [pii] AID - 10.3390/ijms18102010 [doi] PST - epublish SO - Int J Mol Sci. 2017 Sep 21;18(10):2010. doi: 10.3390/ijms18102010.