Human vs Lion LastZ results

Human (Homo sapiens, GRCh38) and Lion (Panthera leo, PanLeo1.0) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 100. 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

ParameterHumanLion
Chunk size30,000,00010,100,000
Overlap0100,000
Group set size010,100,000
Masking options

Statistics over 2,397,475 alignment blocks

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

Uncovered: 1,489,310,112 out of 3,096,649,726
Covered: 1,607,339,614 out of 3,096,649,726

Uncovered: 693,425 out of 35,610,692
Matches: 30,331,264 out of 35,610,692
Mismatches: 4,312,451 out of 35,610,692
Insertions: 273,552 out of 35,610,692
Identity over aligned base-pairs: 86.9%

Lion

Uncovered: 865,583,952 out of 2,406,807,619
Covered: 1,541,223,667 out of 2,406,807,619

Uncovered: 429,989 out of 32,345,482
Matches: 28,125,258 out of 32,345,482
Mismatches: 3,651,816 out of 32,345,482
Insertions: 138,419 out of 32,345,482
Identity over aligned base-pairs: 88.1%

Block size distribution

Size range All 2,397,475 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
91,696
610.0 kb
10 bp - 100 bp
294,110
13.8 Mb
25,613
1.7 Mb
100 bp - 1 kb
1,422,815
643.7 Mb
84,417
31.4 Mb
1 kb - 10 kb
587,775
1.1 Gb
29,958
74.0 Mb
10 kb - 100 kb
1,066
15.4 Mb
2,674
70.0 Mb
100 kb - 1 Mb
13
1.6 Mb
416
103.6 Mb
1 Mb - 10 Mb
62
233.4 Mb
10 Mb - 100 Mb
40
1.3 Gb