NDLI: Derangement of Hypothetical Proteins in Fetal Down's Syndrome Brain

Content Provider	Springer Nature Link
Author	Shin, Joo Ho Gulesserian, Talin Weitzdoerfer, Rachel Fountoulakis, Michael Lubec, Gert
Copyright Year	2004
Abstract	The success of the Human Genome Project (HGP) enables prediction of proteins by computer programs from nucleic acid sequences and for which there is no experimental evidence. Clues for function of hypothetical proteins are provided by sequence similarity with proteins of known function in model organisms. The availability of this bulk of new data is of immediate importance to Down's syndrome (DS) research. DS is the most common human chromosomal abnormality caused by an extra copy of chromosome 21 and is characterized by somatic anomalies and mental retardation. In addition, overexpression of chromosome 21 genes is directly or indirectly responsible for mental retardation and other phenotypic abnormalities of DS. To allow insight into how trisomy 21 represents the phenotype of DS, we constructed a two-dimensional protein map and investigated expression of 8 hypothetical proteins in fetal DS (n = 7) and control (n = 7) brains (cortex). Two-dimensional electrophoresis (2-DE) with subsequent in-gel digestion of spots and matrix-assisted laser desorption/ionization (MALDI) spectroscopic identification followed by quantification of spots with specific software was applied. Quantitative analysis of hypothetical protein FLJ10849, hypothetical protein FLJ20113, and activator of hsp90 ATPase homologue 1 (AHA1) revealed levels comparable between DS and controls. By contrast, expression levels of hypothetical protein KIAA1185, hypothetical protein 55.2 kDa, hypothetical protein 58.8 kDa, actin-related protein 3β (ARP3β), and putative GTP-binding protein PTD004 were significantly decreased (P < 0.05) in fetal DS brain, and domain analysis suggests involvement in cytoskeleton, signaling, and chaperone system abnormalities.
Starting Page	1307
Ending Page	1316
Page Count	10
File Format	PDF
ISSN	03643190
Journal	Neurochemical Research
Volume Number	29
Issue Number	6
e-ISSN	15736903
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2004-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Neurosciences Neurology Biochemistry
Content Type	Text
Resource Type	Article
Subject	Medicine Biochemistry Cellular and Molecular Neuroscience

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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