This directory contains the Build 36.1 finished human genome assembly
(hg18, Mar. 2006) in one gzip-compressed FASTA file per chromosome.
The chromosomal sequences were assembled by the International Human
Genome Project sequencing centers. 

Files included in this directory:

  - chr*.fa.gz: compressed FASTA sequence of each chromosome.
    Repeats from RepeatMasker and Tandem Repeats Finder (with period
    of 12 or less) are shown in lower case; non-repeating sequence is
    shown in upper case. Repeat masking was done using the following
    RepeatMasker/RepBase versions: RepBase Update 9.11, RM database 
    version 20050112. The main assembly is found in the chrN.fa
    files, where N is the name of the chromosome. The chrN_random.fa
    files contain clones that are not yet finished or cannot be placed
    with certainty at a specific place on the chromosome. In some
    cases, including the human HLA region on chromosome 6, the
    chrN_random.fa files also contain haplotypes that differ from the
    main assembly.

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If you plan to download a large file or multiple files from this 
directory, we recommend that you use ftp rather than downloading the 
files via our website. To do so, ftp to hgdownload.cse.ucsc.edu, then 
go to the directory goldenPath/hg18/chromosomes. To download multiple 
files, use the "mget" command:

    mget <filename1> <filename2> ...
    - or -
    mget -a (to download all the files in the directory)

Alternate methods to ftp access.
    
Using an rsync command to download the entire directory:
    rsync -avzP rsync://hgdownload.cse.ucsc.edu/goldenPath/hg18/chromosomes/ .
For a single file, e.g. chrM.fa.gz
    rsync -avzP 
        rsync://hgdownload.cse.ucsc.edu/goldenPath/hg18/chromosomes/chrM.fa.gz .
    
Or with wget, all files:
    wget --timestamping 
        'ftp://hgdownload.cse.ucsc.edu/goldenPath/hg18/chromosomes/*'
With wget, a single file:
    wget --timestamping 
        'ftp://hgdownload.cse.ucsc.edu/goldenPath/hg18/chromosomes/chrM.fa.gz' 
        -O chrM.fa.gz
    
To uncompress the fa.gz files:
    gunzip <file>.fa.gz

All the files in this directory are freely available for public use.
      Name                    Last modified      Size  Description
Parent Directory - chr1.fa.gz 2005-12-09 14:58 70M chr1_random.fa.gz 2005-12-09 14:58 391K chr2.fa.gz 2005-12-09 14:58 74M chr2_random.fa.gz 2005-12-09 14:58 58K chr3.fa.gz 2005-12-09 14:58 61M chr3_random.fa.gz 2005-12-09 14:58 197K chr4.fa.gz 2005-12-09 14:59 59M chr4_random.fa.gz 2005-12-09 14:59 204K chr5.fa.gz 2005-12-09 14:59 56M chr5_random.fa.gz 2005-12-09 14:59 47K chr6.fa.gz 2005-12-09 14:59 52M chr6_random.fa.gz 2005-12-09 14:59 587K chr7.fa.gz 2005-12-09 14:59 48M chr7_random.fa.gz 2005-12-09 14:59 144K chr8.fa.gz 2005-12-09 15:00 45M chr8_random.fa.gz 2005-12-09 15:00 165K chr9.fa.gz 2005-12-09 15:00 38M chr9_random.fa.gz 2005-12-09 15:00 224K chr10.fa.gz 2005-12-09 15:00 41M chr10_random.fa.gz 2005-12-09 15:00 35K chr11.fa.gz 2005-12-09 15:00 41M chr11_random.fa.gz 2005-12-09 15:00 39K chr12.fa.gz 2005-12-09 15:00 41M chr13.fa.gz 2005-12-09 15:01 30M chr13_random.fa.gz 2005-12-09 15:01 60K chr14.fa.gz 2005-12-09 15:01 28M chr15.fa.gz 2005-12-09 15:01 25M chr15_random.fa.gz 2005-12-09 15:01 187K chr16.fa.gz 2005-12-09 15:01 24M chr16_random.fa.gz 2005-12-09 15:01 33K chr17.fa.gz 2005-12-09 15:01 24M chr17_random.fa.gz 2005-12-09 15:01 573K chr18.fa.gz 2005-12-09 15:01 23M chr18_random.fa.gz 2005-12-09 15:01 1.4K chr19.fa.gz 2005-12-09 15:01 17M chr19_random.fa.gz 2005-12-09 15:01 69K chr20.fa.gz 2005-12-09 15:01 19M chr21.fa.gz 2005-12-09 15:01 11M chr21_random.fa.gz 2005-12-09 15:01 414K chr22.fa.gz 2005-12-09 15:01 11M chr22_random.fa.gz 2005-12-09 15:01 67K chrX.fa.gz 2005-12-09 15:02 47M chrX_random.fa.gz 2005-12-09 15:02 467K chr6_cox_hap1.fa.gz 2005-12-09 15:02 1.5M chr22_h2_hap1.fa.gz 2005-12-09 15:02 21K chrM.fa.gz 2005-12-09 15:02 5.4K chrY.fa.gz 2005-12-09 15:02 7.9M chr5_h2_hap1.fa.gz 2005-12-09 15:02 550K chr6_qbl_hap2.fa.gz 2005-12-09 15:02 1.3M