Upcoming Ensembl Platform Transition

This is the final release of its kind on this website.

In summer 2026, this site will bring you to the new Ensembl platform currently at beta.ensembl.org.
Please bookmark this archive to retain access to the current site, tools and functionality until they are available on the new platform -> jun2026.archive.ensembl.org

Human vs Goldfish LastZ results

Human (Homo sapiens, GRCh38) and Goldfish (Carassius auratus, ASM336829v1) 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

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

Statistics over 480,653 alignment blocks

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

Uncovered: 3,062,694,164 out of 3,099,750,718
Covered: 37,056,554 out of 3,099,750,718

Uncovered: 16,682,349 out of 38,571,754
Matches: 14,861,487 out of 38,571,754
Mismatches: 6,583,098 out of 38,571,754
Insertions: 444,820 out of 38,571,754
Identity over aligned base-pairs: 67.9%

Goldfish

Uncovered: 1,745,733,783 out of 1,820,635,050
Covered: 74,901,267 out of 1,820,635,050

Uncovered: 44,530,520 out of 97,245,049
Matches: 36,292,783 out of 97,245,049
Mismatches: 15,562,114 out of 97,245,049
Insertions: 859,632 out of 97,245,049
Identity over aligned base-pairs: 68.8%

Block size distribution

Size range All 480,653 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
3,316
14.3 kb
10 bp - 100 bp
95,277
7.1 Mb
29,097
2.2 Mb
100 bp - 1 kb
378,216
77.2 Mb
154,179
46.8 Mb
1 kb - 10 kb
3,836
5.9 Mb
19,924
39.2 Mb
10 kb - 100 kb
7
125.4 kb
139
2.0 Mb
100 kb - 1 Mb
1
100.2 kb
3
372.6 kb