This directory contains the data files required as input to 
the liftOver utility. This tool -- which requires a Linux 
platform -- allows the mass conversion of coordinates from 
one assembly to another. The executable file for the utility can 
be downloaded from

The file names reflect the assembly conversion data contained within
in the format <db1>To<db2>.over.chain.gz. For example, a file named file contains the liftOver data needed to convert hg15 
(Human Build 33) coordinates to hg16 (Human Build 34). If no file is 
available for the assembly in which you're interested, please send a 
request to the genome mailing list ( and we will 
attempt to provide you with one.

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, then go to the 
appropriate goldenPath/<assembly>/liftOver directory. To download multiple 
files, use the "mget" command:

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

Please refer to the credits page 
( for guidelines and
restrictions regarding data use for these assemblies. 

      Name                           Last modified      Size  Description
Parent Directory - md5sum.txt 2015-01-05 15:37 1.2K rheMac2ToCalJac1.over.chain.gz 2007-11-17 21:05 59M rheMac2ToCalJac3.over.chain.gz 2010-02-11 18:31 48M rheMac2ToGorGor3.over.chain.gz 2011-10-22 17:48 32M rheMac2ToHg17.over.chain.gz 2006-03-22 11:41 36M rheMac2ToHg18.over.chain.gz 2006-02-03 10:13 37M rheMac2ToHg19.over.chain.gz 2009-06-02 11:20 33M rheMac2ToHg38.over.chain.gz 2014-07-12 18:48 33M rheMac2ToMm8.over.chain.gz 2006-02-20 22:22 64M rheMac2ToMm9.over.chain.gz 2007-09-07 10:41 86M rheMac2ToMonDom5.over.chain.gz 2009-03-02 22:39 23M rheMac2ToPanTro2.over.chain.gz 2006-03-30 15:04 37M rheMac2ToPanTro3.over.chain.gz 2011-03-07 09:51 33M rheMac2ToPapAnu2.over.chain.gz 2014-12-12 02:37 14M rheMac2ToPonAbe2.over.chain.gz 2007-11-18 03:43 39M rheMac2ToRheMac3.over.chain.gz 2012-07-24 16:14 26M rheMac2ToRheMac8.over.chain.gz 2016-02-06 14:00 3.7M rheMac2ToRn4.over.chain.gz 2006-03-23 09:16 77M