3442f799e4ddde42dfc0257e514ea1831a514f97
markd
  Sun Apr 24 21:03:28 2022 -0700
add score to T2T supplied liftOver chains

diff --git src/hg/makeDb/doc/hg38/chm13LiftOver.txt src/hg/makeDb/doc/hg38/chm13LiftOver.txt
index 758ad95..6071dad 100644
--- src/hg/makeDb/doc/hg38/chm13LiftOver.txt
+++ src/hg/makeDb/doc/hg38/chm13LiftOver.txt
@@ -1,27 +1,28 @@
 #############################################################################
 # chm13 liftover alignments  (2022-03-29 markd)
 
 # preliminary CHM13 <-> hg38 liftOver chains until NCBI produces consensus alignments
 # provide by Nae-Chyun Chen <naechyun.chen@gmail.com>
 
     mkdir -p /hive/data/genomes/hg38/bed/chm13LiftOver
     cd /hive/data/genomes/hg38/bed/chm13LiftOver
 
 # originally Obtain GRCh37 from T2T Globus: team-liftover/v1_nflo/grch38-chm13v2.chain
 
 # 2022-04-09 updated due to discovery that chrM was missing
+# 2022-04-19 it was discover that chains render oddly due to the lack of chain ids.  Use chainMergeSort
 # obtain updated chains from 
 
   cp /hive/data/genomes/asmHubs/genbankBuild/GCA/009/914/755/GCA_009914755.4_T2T-CHM13v2.0/trackData/hgLiftOver/hg38-chm13v2.over.chain.gz .
 
 # make NCBI query names as well, since chromAlias doesn't work yet for click-through
 # note doc is wrong in chromToPsl PSL query is 10
 
     chainToPslBasic hg38-chm13v2.over.chain.gz stdout | chromToUcsc -k 10 -a /hive/data/genomes/asmHubs/genbankBuild/GCA/009/914/755/GCA_009914755.4_T2T-CHM13v2.0/GCA_009914755.4_T2T-CHM13v2.0.chromAlias.txt | pslToChain stdin stdout | pigz -c > hg38-chm13v2.ncbi-qnames.over.chain.gz
 
 # build bigChain files:
     hgLoadChain -noBin -test none bigChain hg38-chm13v2.over.chain.gz 
     sed 's/\.000000//' chain.tab | awk 'BEGIN {OFS="\t"} {print $2, $4, $5, $11, 1000, $8, $3, $6, $7, $9, $10, $1}' > bigChainIn.tab
     bedToBigBed -type=bed6+6 -as=${HOME}/kent/src/hg/lib/bigChain.as -tab bigChainIn.tab ../../chrom.sizes hg38-chm13v2.over.chain.bb
     tawk '{print $1, $2, $3, $5, $4}' link.tab | csort -k1,1 -k2,2n --parallel=64 > bigLinkIn.tab
     bedToBigBed -type=bed4+1 -as=${HOME}/kent/src/hg/lib/bigLink.as -tab bigLinkIn.tab  ../../chrom.sizes hg38-chm13v2.over.link.bb