Human vs Chinese hamster CHOK1GS LastZ results

Human (Homo sapiens, GRCh38) and Chinese hamster CHOK1GS (Cricetulus griseus, CHOK1GS_HDv1) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 90. 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

ParameterHumanChinese hamster CHOK1GS
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 1,609,170 alignment blocks

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

Uncovered: 2,034,002,033 out of 3,096,649,726
Covered: 1,062,647,693 out of 3,096,649,726

Uncovered: 1,199,547 out of 35,444,608
Matches: 28,515,600 out of 35,444,608
Mismatches: 5,325,921 out of 35,444,608
Insertions: 403,540 out of 35,444,608
Identity over aligned base-pairs: 83.3%

Chinese hamster CHOK1GS

Uncovered: 1,392,044,692 out of 2,358,167,390
Covered: 966,122,698 out of 2,358,167,390

Uncovered: 2,174,662 out of 33,368,010
Matches: 26,464,939 out of 33,368,010
Mismatches: 4,575,480 out of 33,368,010
Insertions: 152,929 out of 33,368,010
Identity over aligned base-pairs: 84.8%

Block size distribution

Size range All 1,609,170 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
26,571
179.9 kb
10 bp - 100 bp
162,748
8.6 Mb
11,565
787.8 kb
100 bp - 1 kb
1,061,868
487.9 Mb
42,667
15.8 Mb
1 kb - 10 kb
357,767
618.4 Mb
15,241
36.7 Mb
10 kb - 100 kb
216
2.7 Mb
1,064
24.7 Mb
100 kb - 1 Mb
188
75.0 Mb
1 Mb - 10 Mb
141
515.0 Mb
10 Mb - 100 Mb
27
450.0 Mb