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Zeitschriftenartikel

An integrated, functionally annotated gene map of the DXS8026- ELK1 interval on human Xp11.3-Xp11.23: Potential hotspot for neurogenetic disorders

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons77800

Brandau,  O.
Former Research Groups, Max Planck Institute of Biochemistry, Max Planck Society;

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Zitation

Thiselton, D. L., McDowall, J., Brandau, O., Ramser, J., d'Esposito, F., Bhattacharya, S. S., et al. (2002). An integrated, functionally annotated gene map of the DXS8026- ELK1 interval on human Xp11.3-Xp11.23: Potential hotspot for neurogenetic disorders. Genomics, 79(4), 560-572.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0010-6F7A-5
Zusammenfassung
Human chromosome Xp11.3-Xp11.23 encompasses the map location for a growing number of diseases with a genetic basis or genetic component. These include several eye disorders, syndromic and nonsyndromic forms of X-linked mental retardation (XLMR), X-linked neuromuscular diseases and susceptibility loci for schizophrenia, type 1 diabetes, and Graves' disease. We have constructed an similar to 2.7-Mb high-resolution physical map extending from DXS8026 to ELK1, corresponding to a genetic distance of similar to 5.5 cM. A combination of chromosome walking and sequence-tagged site (STS)-content mapping resulted in an integrated framework and transcript map, precisely positioning 10 polymorphic microsatellites (one of which is novel), 16 ESTs, and 12 known genes (RP2, PCTK1, UHX1, UBE1, RBM10, ZNF157, SYN1, ARAF1, TIMP1, PFC, ELK1, UXT). The composite map is currently anchored with 89 STSs to give an average resolution of similar to 1 STS every 30 kb. By a combination of EST database searches and in silico detection of UniGene clusters within genomic sequence generated from this template map, we have mapped several novel genes within this interval: a Na+/H+ exchanger (SLC9A7), at least two zinc-finger transcription factors (KLkA0215 and Hs.68318), carbohydrate sulfotransferase-7 (CHST7), regucalcin (RGN), inactivation- escape-1 (INE1), the human ortholog of mouse neuronal protein 15.6, and four putative novel genes. Further genomic analysis enabled annotation of the sequence interval with 20 predicted pseudogenes and 21 UniGene clusters of unknown function. The combined PAC/BAC transcript map and YAC scaffold presented here clarifies previously conflicting data for markers and genes within the Xp11.3-Xp11.23 interval and provides a powerful integrated resource for functional characterization of this clonally unstable, yet gene-rich and clinically significant region of proximal Xp.