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
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 size10,100,000
Masking options

Statistics over 2,342,205 alignment blocks

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

Uncovered: 1,492,411,104 out of 3,099,750,718
Covered: 1,607,339,614 out of 3,099,750,718

Uncovered: 1,528,394 out of 38,571,754
Matches: 31,848,082 out of 38,571,754
Mismatches: 4,777,438 out of 38,571,754
Insertions: 417,840 out of 38,571,754
Identity over aligned base-pairs: 86.0%

Lion

Uncovered: 867,223,978 out of 2,406,807,619
Covered: 1,539,583,641 out of 2,406,807,619

Uncovered: 458,568 out of 32,345,482
Matches: 28,168,704 out of 32,345,482
Mismatches: 3,579,499 out of 32,345,482
Insertions: 138,711 out of 32,345,482
Identity over aligned base-pairs: 88.3%

Block size distribution

Size range All 2,342,205 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
90,025
598.9 kb
10 bp - 100 bp
286,405
13.5 Mb
24,437
1.7 Mb
100 bp - 1 kb
1,387,958
628.4 Mb
80,177
29.8 Mb
1 kb - 10 kb
576,808
1.1 Gb
27,844
67.8 Mb
10 kb - 100 kb
1,004
13.8 Mb
2,282
58.4 Mb
100 kb - 1 Mb
5
572.8 kb
336
83.6 Mb
1 Mb - 10 Mb
62
233.4 Mb
10 Mb - 100 Mb
40
1.3 Gb