Human vs Olive baboon LastZ results

Human (Homo sapiens, GRCh38) and Olive baboon (Papio anubis, Panubis1.0) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 105. 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)5000
Threshold for gapped extension (L)5000
Threshold for alignments between gapped alignment blocks (H)3000
Masking count (M)10
Seed and Transition value (T)1
Scoring matrix (Q)$ENSEMBL_ROOT_DIR/ensembl-compara/scripts/pipeline/primate.matrix

Chunking parameters

ParameterHumanOlive baboon
Chunk size30,000,00010,100,000
Overlap0100,000
Group set size10,100,000
Masking options

Statistics over 761,400 alignment blocks

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

Uncovered: 550,235,480 out of 3,099,750,718
Covered: 2,549,515,238 out of 3,099,750,718

Uncovered: 893,420 out of 38,571,754
Matches: 36,321,222 out of 38,571,754
Mismatches: 1,218,678 out of 38,571,754
Insertions: 138,434 out of 38,571,754
Identity over aligned base-pairs: 96.4%

Olive baboon

Uncovered: 419,593,981 out of 2,869,821,163
Covered: 2,450,227,182 out of 2,869,821,163

Uncovered: 3,116,543 out of 36,172,917
Matches: 31,962,781 out of 36,172,917
Mismatches: 1,036,114 out of 36,172,917
Insertions: 57,479 out of 36,172,917
Identity over aligned base-pairs: 96.7%

Block size distribution

Size range All 761,400 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
15,852
88.9 kb
10 bp - 100 bp
60,962
3.1 Mb
15,496
911.5 kb
100 bp - 1 kb
206,824
93.5 Mb
34,537
10.6 Mb
1 kb - 10 kb
415,315
1.6 Gb
9,856
31.3 Mb
10 kb - 100 kb
62,431
971.1 Mb
2,893
83.4 Mb
100 kb - 1 Mb
16
1.9 Mb
496
122.5 Mb
1 Mb - 10 Mb
26
59.6 Mb
10 Mb - 100 Mb
34
1.5 Gb
100 Mb - 1 Gb
7
842.6 Mb