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 size010,100,000
Masking options

Statistics over 797,928 alignment blocks

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

Uncovered: 548,351,840 out of 3,096,649,726
Covered: 2,548,297,886 out of 3,096,649,726

Uncovered: 730,616 out of 35,703,020
Matches: 33,802,991 out of 35,703,020
Mismatches: 1,065,053 out of 35,703,020
Insertions: 104,360 out of 35,703,020
Identity over aligned base-pairs: 96.7%

Olive baboon

Uncovered: 418,384,647 out of 2,869,821,163
Covered: 2,451,436,516 out of 2,869,821,163

Uncovered: 3,101,886 out of 36,172,917
Matches: 31,893,756 out of 36,172,917
Mismatches: 1,119,810 out of 36,172,917
Insertions: 57,465 out of 36,172,917
Identity over aligned base-pairs: 96.4%

Block size distribution

Size range All 797,928 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
16,526
92.6 kb
10 bp - 100 bp
66,396
3.4 Mb
16,921
992.3 kb
100 bp - 1 kb
222,377
100.3 Mb
37,414
11.6 Mb
1 kb - 10 kb
429,454
1.6 Gb
11,323
36.3 Mb
10 kb - 100 kb
63,143
982.6 Mb
3,287
96.9 Mb
100 kb - 1 Mb
32
4.0 Mb
593
142.8 Mb
1 Mb - 10 Mb
37
82.3 Mb
10 Mb - 100 Mb
34
1.5 Gb
100 Mb - 1 Gb
7
842.6 Mb