Human vs Leopard LastZ results

Human (Homo sapiens, GRCh38) and Leopard (Panthera pardus, PanPar1.0) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 93. Human was used as the reference species. After running LastZ, the raw LastZ alignment blocks were chained according to their location in both genomes. During the final netting process, the best sub-chain was chosen in each region on the reference species.

Configuration parameters

ParameterValue
Gap open penalty (O)400
Gap extend penalty (E)30
HSP threshold (K)3000
Threshold for gapped extension (L)3000
Threshold for alignments between gapped alignment blocks (H)2200
Masking count (M)
Seed and Transition value (T)1
Scoring matrix (Q)
Default:
     A    C    G    T
    91 -114  -31 -123
  -114  100 -125  -31
   -31 -125  100 -114
  -123  -31 -114   91

Chunking parameters

ParameterHumanLeopard
Chunk size30,000,00010,100,000
Overlap0100,000
Group set size010,100,000
Masking options{default_soft_masking => 1}{default_soft_masking => 1}

Statistics over 2,326,471 alignment blocks

Genome coverage (bp) Coding exon coverage (bp)
Human

Uncovered: 1,474,152,705 out of 3,096,649,726
Covered: 1,622,497,021 out of 3,096,649,726

Uncovered: 618,879 out of 35,522,272
Matches: 30,343,186 out of 35,522,272
Mismatches: 4,295,042 out of 35,522,272
Insertions: 265,165 out of 35,522,272
Identity over aligned base-pairs: 86.9%

Leopard

Uncovered: 1,054,085,521 out of 2,578,019,207
Covered: 1,523,933,686 out of 2,578,019,207

Uncovered: 1,064,666 out of 30,973,212
Matches: 26,583,342 out of 30,973,212
Mismatches: 3,230,986 out of 30,973,212
Insertions: 94,218 out of 30,973,212
Identity over aligned base-pairs: 88.9%

Block size distribution

Size range All 2,326,471 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
84,723
564.6 kb
10 bp - 100 bp
284,489
13.6 Mb
19,453
1.3 Mb
100 bp - 1 kb
1,392,851
628.9 Mb
59,949
21.4 Mb
1 kb - 10 kb
564,051
1.1 Gb
19,022
47.3 Mb
10 kb - 100 kb
350
5.1 Mb
1,658
41.4 Mb
100 kb - 1 Mb
7
808.2 kb
222
78.7 Mb
1 Mb - 10 Mb
162
636.9 Mb
10 Mb - 100 Mb
49
879.3 Mb