FAQ: Unix
What is a FAQ?
FAQ stands for Frequently Asked Questions. This is a
list of questions that are asked by many users, so it was thought
to be worth compiling the list for the use of everybody.
This particular FAQ is designed to help users of the
GCG Sequence Analysis
Package at NIH. It includes answers to the questions that
are most commonly asked by GCG users of the
helix systems.
What is GCG?
GCG, also known as the Wisconsin Package, stands for Genetics Computer
Group. It is an integrated software package of routines to access,
manipulate and analyze nucleotide and protein sequences. For example,
you can use the GCG package to:
- enter sequences from a digitizer or keyboard and edit them.
- manage and assemble nucleotide sequence fragments in a sequencing
project.
- calculate and display restriction digests and simulate RNA fingerprints.
- compare sequences
- search nucleic acid or protein sequence databases for sequences
similar to your query sequence or sequence pattern.
- create, edit, display and analyze multiple sequence alignments
- determine and display evolutionary phylogenies from multiple
sequence alignments
- recognize terminators, repeats, protein coding regions, and
other consensus patterns
- predict and display optimal and suboptimal RNA secondary structures
- identify sequence motifs in protein sequences and make predictions
about peptide isolation
- translate nucleic acid sequences into protein sequences and
backtranslate protein sequences into nucleic acids.
- predict optimal primers for PCR reactions
If you are interested in using GCG, see
Using GCG at NIH.
What is helix?
The
helix systems consist of a cluster of mainframe and supercomputer
applications, network and telecommunication facilities at the
Division of Computer Research and Technology at NIH. Among other
software, the helix systems maintain and support the
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