Description: SynaMap™ accurately maps gene sequences (i.e. transcripts, genes and ESTs) onto a genome. It takes advantage of the exhaustive dynamic k-mer structure of SynaBASE™, which results in improved accuracy over fixed length k-mer indices as used by BLAT and BLAST. Exons missed by BLAT and BLAST are accurately and rapidly identified by SynaMap.
Application Example: Homo sapiens apolipoprotein L, 4 (APOL4) (NM_145660.1) was mapped to the Homo sapiens genome Build 36 v1 to discover the gene location and exons. SynaMap reports the location of 5 exons within 500 milliseconds. SynaMap identifies the position of the respective exons and reports putative splice sites in the correct order. The user has a choice of reviewing results in either the default user interface or as a GFF output which can be exported into downstream data mining packages. In this example, BLAT reports only 1 of the 5 exons for the gene, whilst BLASTN required significantly longer time and post processing exon identification to identify the 5 exons.
To try SynaMap, please:

1. Click here and then click on the “Access Now” button
2. Click on “SynaMap”.
3. Click on the ‘test sequence’ button and get the ‘Homo sapiens apolipoprotein L, 4 (APOL4)’ sequence fragment into the ‘Sequence’ box by clicking on the ‘Copy’ button.
4. The ‘Homo sapiens genome (NCBI Build 36 v1)’ SynaBASE should be selected.
5. Using the default parameters, click on ‘MAP’ to begin your analysis.

The Input Page

GUI Option

Bulk Option

NCBI Map viewer.

BLASTN hit table output needed post processing.

gi|22035656|ref|NM_145660.1|   gi|89161203|ref|NC_000022.9|NC_000022  100.00  207   0  0  1   207   34930825   349306194e-111;  410 gi|22035656|ref|NM_145660.1|   gi|89161203|ref|NC_000022.9|NC_000022  100.00  65   0  0  206   270   34928048   349279842e-26   129 gi|22035656|ref|NM_145660.1|   gi|89161203|ref|NC_000022.9|NC_000022  100.00  48   0  0  269   316   34925369   349253223e-16  95.6 gi|22035656|ref|NM_145660.1|   gi|89161203|ref|NC_000022.9|NC_000022  100.00  130   0  0  315   444   34921431   349213024e-65   258 gi|22035656|ref|NM_145660.1|   gi|89161203|ref|NC_000022.9|NC_000022  99.93   2788  0  1  441   3228  34917907   349151220.0   5505
gi|22035656|ref|NM_145660.1|   gi|89161203|ref|NC_000022.9|NC_000022  100.00  24   0  0  542   565   34954174   349541510.067  48.1 gi|22035656|ref|NM_145660.1|   gi|89161203|ref|NC_000022.9|NC_000022  100.00  24   0  0  648   671   34991347   349913700.067  48.1 gi|22035656|ref|NM_145660.1|   gi|89161203|ref|NC_000022.9|NC_000022  100.00  21   0  0  820   840   41976784   419767644.1   42.1 gi|22035656|ref|NM_145660.1|   gi|89161203|ref|NC_000022.9|NC_000022  96.97   33   1  0  1391  1423  18302392   183024247e-05  58.0 gi|22035656|ref|NM_145660.1|   gi|89161203|ref|NC_000022.9|NC_000022  97.92   48   1  0  2286  2333  21153752   211537998e-14  87.7 gi|22035656|ref|NM_145660.1|   gi|89161203|ref|NC_000022.9|NC_000022  100.00  23   0  0  2905  2927  42231671   422316930.27   46.1


Post processed BLASTN hit table output (identified exon in bold).

NCBI Map viewer shows that there are 5 exons.
Test Sequence To Add to MGRC for this Newsbyte: