Human vs Mouse Lemur LastZ results

Human (Homo sapiens, GRCh38) and Mouse Lemur (Microcebus murinus, Mmur_3.0) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 91. 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)
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

ParameterHumanMouse Lemur
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 2,184,757 alignment blocks

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

Uncovered: 1,321,977,149 out of 3,096,649,726
Covered: 1,774,672,577 out of 3,096,649,726

Uncovered: 553,457 out of 35,444,608
Matches: 31,127,989 out of 35,444,608
Mismatches: 3,521,914 out of 35,444,608
Insertions: 241,248 out of 35,444,608
Identity over aligned base-pairs: 89.2%

Mouse Lemur

Uncovered: 830,027,332 out of 2,487,409,138
Covered: 1,657,381,806 out of 2,487,409,138

Uncovered: 1,222,261 out of 31,075,486
Matches: 26,999,281 out of 31,075,486
Mismatches: 2,740,517 out of 31,075,486
Insertions: 113,427 out of 31,075,486
Identity over aligned base-pairs: 90.4%

Block size distribution

Size range All 2,184,757 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
78,301
526.6 kb
10 bp - 100 bp
319,217
15.2 Mb
34,216
2.3 Mb
100 bp - 1 kb
1,193,191
514.9 Mb
124,506
41.3 Mb
1 kb - 10 kb
591,975
1.3 Gb
23,200
54.6 Mb
10 kb - 100 kb
2,073
26.8 Mb
1,853
47.1 Mb
100 kb - 1 Mb
199
63.5 Mb
1 Mb - 10 Mb
119
438.4 Mb
10 Mb - 100 Mb
49
1.2 Gb