SGD Help: Chromosomal Features Map
Contents
NOTE: You must be using a Java-enabled Web browser that is the
equivalent of, or more recent than, Netscape 2.0 to view the
Chromosomal Features Map!!
The Chromosomal Features Map is a graphic representation of the
genetic features of a region of chromosomal DNA, including
centromeres, tRNAs, RNA genes, Ty transposons or LTR elements, rRNAs
or snRNAs.
In this map, the genes and ORFs from the
Watson strand (top strand) are red, while those on the Crick strand
(bottom strand) are blue. The 5' end of the Watson strand is
indicated in red on the left and the 5' end of the Crick strand on the
right. Centromeres are black circles, tRNAs are green, rRNAs are
beige, snRNAs are dark purple, other RNA genes are gray, transposons
are yellow and LTRs are fuchsia. A legend is provided at the bottom of
the page. The chromosomal coordinates are listed at the left and
right of each line (in multiples of 20,000 bp). The entire chromosome
is shown as an ideogram at the top of the display. You can click on
this ideogram to display a different region of the chromosome. A
portion of the Chromosomal Features Map for RAD54 is shown below:
Every genetic feature on the map is a link to the Locus or Sequence page for that feature. You
can click either the text (the gene or ORF name) or the symbol (colored
boxes or the black circle).
You can easily move along the chromosome using the "Retrieve Features
Left" or "Retrieve Features Right" buttons located between the map and
the legend. The resulting map will have an overlap with the previous
map, to help you orient yourself in the sequence.
At the bottom of the page are links to related SGD pages. The
"Chromosomal Features Table" link will display a text table giving
exact coordinates for the same region of the chromosome as the one
currently being displayed. Similarly, the Physical Map or Combined
Physical and Genetic Map can be viewed for the coordinates currently
being displayed.
The Chromosomal Features Map can be accessed:
- By selecting the desired region on the "Features Map" in Genomic View
- By entering the desired region in Gene/Sequence
Resources and choosing "Chromosomal Features Map" as the display method
- By selecting the "Chromosomal Features Map" link at the bottom of the Chromosomal Features Table
Go to Gene/Sequence Resources
Return to Saccharomyces Genome Database