<![CDATA[BOL: Related items]]> https://bioinformaticsonline.com/related/43714?offset=130 https://bioinformaticsonline.com/news/view/2488/tivicay%C2%AE-dolutegravir-50-mg-tablets-for-hiv-1 Fri, 16 Aug 2013 09:00:15 -0500 https://bioinformaticsonline.com/news/view/2488/tivicay%C2%AE-dolutegravir-50-mg-tablets-for-hiv-1 <![CDATA[Tivicay® (dolutegravir) 50-mg tablets for HIV-1]]> FDA has approved Viiv Healthcare’s integrase inhibitor Tivicay® (dolutegravir) 50-mg tablets, for use with other antiretroviral agents in treating HIV-1 infection. ViiV Healthcare is an HIV therapeutics company established in 2009 by GlaxoSmithKline and Pfizer.

Tivicay is indicated for infected adults, both treatment-naive and treatment-experienced, including those treated with other integrase strand transfer inhibitors; as well as for children aged 12 years and older weighing at least 40 kg (approx. 88 lbs). The drug - which was used without a pharmacokinetic boosting agent - interferes with one of the enzymes necessary for HIV to multiply, and can be taken with or without food and at any time of day.

http://www.fda.gov/ForConsumers/ByAudience/ForPatientAdvocates/HIVandAIDSActivities/ucm364869.htm

]]> Neel https://bioinformaticsonline.com/bookmarks/view/2839/look-up-a-biological-numbers Fri, 23 Aug 2013 03:27:45 -0500 https://bioinformaticsonline.com/bookmarks/view/2839/look-up-a-biological-numbers <![CDATA[Look up a biological numbers]]> Did you ever need to look up a number like the volume of a cell or the cellular concentration of ATP, only to find yourself spending much more time than you wanted on the Internet or flipping through textbooks - all without much success? 

Well, it didn’t happen only to you. It is often surprising how difficult it can be to find concrete biological numbers, even for properties that have been measured numerous times. To help solve this for one and all, BioNumbers (the database of key numbers in molecular biology) was created. Along with the numbers, you'll find the relevant references to the original literature, useful comments, and related numbers. 

To cite BioNumbers please refer to: Milo et al. Nucl. Acids Res. (2010) 38: D750-D753. When using a specific entry from the database it is highly recommended that you also specify the BioNumbers 6 digit ID, e.g. "BNID 100986, Milo et al 2010". 

Address of the bookmark: http://bionumbers.hms.harvard.edu/

]]> Jitendra Narayan https://bioinformaticsonline.com/bookmarks/view/27691/histonedb-20-%E2%80%93-with-variants Fri, 03 Jun 2016 05:06:20 -0500 https://bioinformaticsonline.com/bookmarks/view/27691/histonedb-20-%E2%80%93-with-variants <![CDATA[HistoneDB 2.0 – with variants]]> This histone database can be used to explore the diversity of histone proteins and their sequence variants in many organisms. The resource was established to better understand how sequence variation may affect functional and structural features of nucleosomes. To get started, select a histone type to explore its variants.

More at http://www.ncbi.nlm.nih.gov/projects/HistoneDB2.0/index.fcgi/browse/

Address of the bookmark: http://www.ncbi.nlm.nih.gov/projects/HistoneDB2.0/index.fcgi/browse/

]]> Anjana https://bioinformaticsonline.com/news/view/44640/new-blast-core-nucleotide-database-core-nt Tue, 13 Aug 2024 07:12:53 -0500 https://bioinformaticsonline.com/news/view/44640/new-blast-core-nucleotide-database-core-nt <![CDATA[New BLAST Core Nucleotide Database (core_nt)]]> The Core Nucleotide Database (core_nt) is now the default nucleotide BLAST database. Core_nt is also available on the command line. You get faster searches & more focused results.

Core_nt contains the same eukaryotic transcript and gene-related sequences as nt. The core_nt database is nt without most eukaryotic chromosome sequences. Most nucleotide BLAST searches with core_nt will be similar to the nt database. However, core_nt is better than nt for accomplishing your most common BLAST search goals, such as identifying gene-related sequences like transcript sequences and complete bacterial chromosomes. This is because, in recent years, nt has acquired more low-relevance, non-annotated, and non-gene content. 

Learn more: https://ncbiinsights.ncbi.nlm.nih.gov/2024/07/18/new-blast-core-nucleotide-database/

]]> LEGE https://bioinformaticsonline.com/news/view/38664/updated-ranking-of-institutes-and-countries-based-on-developed-biological-databases Fri, 11 Jan 2019 09:35:26 -0600 https://bioinformaticsonline.com/news/view/38664/updated-ranking-of-institutes-and-countries-based-on-developed-biological-databases <![CDATA[Updated ranking of institutes and countries based on developed biological databases]]> Updated ranking of institutes and countries based on developed biological databases is available at https://lnkd.in/fiVAdM6 , India is maintaing 4th position and "Institute of Microbial Technology, Chandigarh" is on 3rd Position (after EBI and NCBI). This is a big achievement for any institute to reach on 3rd position in the world.

More at http://bigd.big.ac.cn/databasecommons/stat

]]> Rahul Nayak https://bioinformaticsonline.com/bookmarks/view/42621/busco-datasets Wed, 13 Jan 2021 19:44:33 -0600 https://bioinformaticsonline.com/bookmarks/view/42621/busco-datasets <![CDATA[BUSCO datasets !]]> The BUSCO software now directly downloads the necessary datasets, specified by the user or automatically selected.

To display all available datasets

busco --list-datasets

You can also download them manually and see a list with the number of marker genes.

Earlier versions: v3, v2, v1

../
acidobacteria_odb10.2020-03-06.tar.gz              16-Oct-2020 13:19     14M
aconoidasida_odb10.2020-08-05.tar.gz               16-Oct-2020 13:19     51M
actinobacteria_class_odb10.2020-03-06.tar.gz       16-Oct-2020 13:19      8M
actinobacteria_phylum_odb10.2020-03-06.tar.gz      16-Oct-2020 13:20      9M
actinopterygii_odb10.2020-08-05.tar.gz             16-Oct-2020 13:20    173M
agaricales_odb10.2020-08-05.tar.gz                 16-Oct-2020 13:20    186M
agaricomycetes_odb10.2020-08-05.tar.gz             16-Oct-2020 13:19    152M
alphaproteobacteria_odb10.2020-03-06.tar.gz        16-Oct-2020 13:20     11M
alteromonadales_odb10.2020-03-06.tar.gz            16-Oct-2020 13:20     18M
alveolata_odb10.2020-09-10.tar.gz                  16-Oct-2020 13:20     13M
apicomplexa_odb10.2020-09-10.tar.gz                16-Oct-2020 13:19     27M
aquificae_odb10.2020-03-06.tar.gz                  16-Oct-2020 13:19     12M
arachnida_odb10.2020-08-05.tar.gz                  16-Oct-2020 13:19    136M
archaea_odb10.2020-03-06.tar.gz                    16-Oct-2020 13:20      4M
arthropoda_odb10.2020-09-10.tar.gz                 16-Oct-2020 13:20     95M
ascomycota_odb10.2020-09-10.tar.gz                 16-Oct-2020 13:20    295M
aves_odb10.2020-09-10.tar.gz                       16-Oct-2020 13:20    465M
bacillales_odb10.2020-03-06.tar.gz                 16-Oct-2020 13:20     10M
bacilli_odb10.2020-03-06.tar.gz                    16-Oct-2020 13:19      7M
bacteria_odb10.2020-03-06.tar.gz                   16-Oct-2020 13:20      6M
bacteroidales_odb10.2020-03-06.tar.gz              16-Oct-2020 13:20     13M
bacteroidetes-chlorobi_group_odb10.2020-03-06.t..> 16-Oct-2020 13:19      9M
bacteroidetes_odb10.2020-03-06.tar.gz              16-Oct-2020 13:20     10M
bacteroidia_odb10.2020-03-06.tar.gz                16-Oct-2020 13:20     13M
basidiomycota_odb10.2020-09-10.tar.gz              16-Oct-2020 13:19    165M
betaproteobacteria_odb10.2020-03-06.tar.gz         16-Oct-2020 13:19     13M
boletales_odb10.2020-08-05.tar.gz                  16-Oct-2020 13:19    197M
brassicales_odb10.2020-08-05.tar.gz                16-Oct-2020 13:20    158M
burkholderiales_odb10.2020-03-06.tar.gz            16-Oct-2020 13:19     16M
campylobacterales_odb10.2020-03-06.tar.gz          16-Oct-2020 13:20     14M
capnodiales_odb10.2020-08-05.tar.gz                16-Oct-2020 13:19    178M
carnivora_odb10.2020-08-05.tar.gz                  16-Oct-2020 13:19    376M
cellvibrionales_odb10.2020-03-06.tar.gz            16-Oct-2020 13:19     19M
cetartiodactyla_odb10.2020-08-05.tar.gz            16-Oct-2020 13:19    407M
chaetothyriales_odb10.2020-08-05.tar.gz            16-Oct-2020 13:20    288M
chlamydiae_odb10.2020-03-06.tar.gz                 16-Oct-2020 13:20     13M
chlorobi_odb10.2020-03-06.tar.gz                   16-Oct-2020 13:20     22M
chloroflexi_odb10.2020-03-06.tar.gz                16-Oct-2020 13:20      6M
chlorophyta_odb10.2020-08-05.tar.gz                16-Oct-2020 13:20     58M
chromatiales_odb10.2020-03-06.tar.gz               16-Oct-2020 13:19     14M
chroococcales_odb10.2020-03-06.tar.gz              16-Oct-2020 13:19     27M
clostridia_odb10.2020-03-06.tar.gz                 16-Oct-2020 13:19      6M
clostridiales_odb10.2020-03-06.tar.gz              16-Oct-2020 13:20      6M
coccidia_odb10.2020-08-05.tar.gz                   16-Oct-2020 13:20     24M
coriobacteriales_odb10.2020-03-06.tar.gz           16-Oct-2020 13:19     12M
coriobacteriia_odb10.2020-03-06.tar.gz             16-Oct-2020 13:20      9M
corynebacteriales_odb10.2020-03-06.tar.gz          16-Oct-2020 13:19     16M
cyanobacteria_odb10.2020-03-06.tar.gz              16-Oct-2020 13:19     17M
cyprinodontiformes_odb10.2020-08-05.tar.gz         16-Oct-2020 13:19    504M
cytophagales_odb10.2020-03-06.tar.gz               16-Oct-2020 13:19     18M
cytophagia_odb10.2020-03-06.tar.gz                 16-Oct-2020 13:20     18M
delta-epsilon-subdivisions_odb10.2020-03-06.tar.gz 16-Oct-2020 13:19      6M
deltaproteobacteria_odb10.2020-03-06.tar.gz        16-Oct-2020 13:19      6M
desulfobacterales_odb10.2020-03-06.tar.gz          16-Oct-2020 13:20     13M
desulfovibrionales_odb10.2020-03-06.tar.gz         16-Oct-2020 13:19     17M
desulfurococcales_odb10.2020-03-06.tar.gz          16-Oct-2020 13:20      9M
desulfuromonadales_odb10.2020-03-06.tar.gz         16-Oct-2020 13:19     18M
diptera_odb10.2020-08-05.tar.gz                    16-Oct-2020 13:19    185M
dothideomycetes_odb10.2020-08-05.tar.gz            16-Oct-2020 13:19    194M
embryophyta_odb10.2020-09-10.tar.gz                16-Oct-2020 13:19    138M
endopterygota_odb10.2020-09-10.tar.gz              16-Oct-2020 13:19    190M
enterobacterales_odb10.2020-03-06.tar.gz           16-Oct-2020 13:19     11M
entomoplasmatales_odb10.2020-03-06.tar.gz          16-Oct-2020 13:19      7M
epsilonproteobacteria_odb10.2020-03-06.tar.gz      16-Oct-2020 13:20     13M
euarchontoglires_odb10.2020-09-10.tar.gz           16-Oct-2020 13:20    728M
eudicots_odb10.2020-09-10.tar.gz                   16-Oct-2020 13:19    168M
euglenozoa_odb10.2020-08-05.tar.gz                 16-Oct-2020 13:20     10M
eukaryota_odb10.2020-09-10.tar.gz                  16-Oct-2020 13:19    100M
eurotiales_odb10.2020-08-05.tar.gz                 16-Oct-2020 13:19    211M
eurotiomycetes_odb10.2020-08-05.tar.gz             16-Oct-2020 13:19    197M
euryarchaeota_odb10.2020-03-06.tar.gz              16-Oct-2020 13:20      5M
eutheria_odb10.2020-09-10.tar.gz                   16-Oct-2020 13:20    920M
fabales_odb10.2020-08-05.tar.gz                    16-Oct-2020 13:19    184M
firmicutes_odb10.2020-03-06.tar.gz                 16-Oct-2020 13:20      6M
flavobacteriales_odb10.2020-03-06.tar.gz           16-Oct-2020 13:19     18M
flavobacteriia_odb10.2020-03-06.tar.gz             16-Oct-2020 13:20     18M
fungi_odb10.2020-09-10.tar.gz                      16-Oct-2020 13:19    181M
fusobacteria_odb10.2020-03-06.tar.gz               16-Oct-2020 13:19     11M
fusobacteriales_odb10.2020-03-06.tar.gz            16-Oct-2020 13:19     11M
gammaproteobacteria_odb10.2020-03-06.tar.gz        16-Oct-2020 13:19     10M
glires_odb10.2020-08-05.tar.gz                     16-Oct-2020 13:19    549M
glomerellales_odb10.2020-08-05.tar.gz              16-Oct-2020 13:19    259M
halobacteria_odb10.2020-03-06.tar.gz               16-Oct-2020 13:19     18M
halobacteriales_odb10.2020-03-06.tar.gz            16-Oct-2020 13:20     18M
haloferacales_odb10.2020-03-06.tar.gz              16-Oct-2020 13:19     20M
helotiales_odb10.2020-08-05.tar.gz                 16-Oct-2020 13:19    224M
hemiptera_odb10.2020-08-05.tar.gz                  16-Oct-2020 13:19    115M
hymenoptera_odb10.2020-08-05.tar.gz                16-Oct-2020 13:19    321M
hypocreales_odb10.2020-08-05.tar.gz                16-Oct-2020 13:19    224M
insecta_odb10.2020-09-10.tar.gz                    16-Oct-2020 13:20    119M
lactobacillales_odb10.2020-03-06.tar.gz            16-Oct-2020 13:19      9M
laurasiatheria_odb10.2020-09-10.tar.gz             16-Oct-2020 13:20    688M
legionellales_odb10.2020-03-06.tar.gz              16-Oct-2020 13:19     16M
leotiomycetes_odb10.2020-08-05.tar.gz              16-Oct-2020 13:19    164M
lepidoptera_odb10.2020-08-05.tar.gz                16-Oct-2020 13:20    241M
liliopsida_odb10.2020-09-10.tar.gz                 16-Oct-2020 13:20    163M
mammalia_odb10.2020-09-10.tar.gz                   16-Oct-2020 13:19    677M
metazoa_odb10.2020-09-10.tar.gz                    16-Oct-2020 13:19    127M
methanobacteria_odb10.2020-03-06.tar.gz            16-Oct-2020 13:19     15M
methanococcales_odb10.2020-03-06.tar.gz            16-Oct-2020 13:20     17M
methanomicrobia_odb10.2020-03-06.tar.gz            16-Oct-2020 13:19     12M
methanomicrobiales_odb10.2020-03-06.tar.gz         16-Oct-2020 13:20     16M
micrococcales_odb10.2020-03-06.tar.gz              16-Oct-2020 13:19     12M
microsporidia_odb10.2020-08-05.tar.gz              16-Oct-2020 13:20     26M
mollicutes_odb10.2020-03-06.tar.gz                 16-Oct-2020 13:20      3M
mollusca_odb10.2020-08-05.tar.gz                   16-Oct-2020 13:20    266M
mucorales_odb10.2020-08-05.tar.gz                  16-Oct-2020 13:20    105M
mucoromycota_odb10.2020-08-05.tar.gz               16-Oct-2020 13:19     75M
mycoplasmatales_odb10.2020-03-06.tar.gz            16-Oct-2020 13:19      4M
natrialbales_odb10.2020-03-06.tar.gz               16-Oct-2020 13:19     24M
neisseriales_odb10.2020-03-06.tar.gz               16-Oct-2020 13:19     16M
nematoda_odb10.2020-08-05.tar.gz                   16-Oct-2020 13:20    138M
nitrosomonadales_odb10.2020-03-06.tar.gz           16-Oct-2020 13:19     15M
nostocales_odb10.2020-03-06.tar.gz                 16-Oct-2020 13:19     35M
oceanospirillales_odb10.2020-03-06.tar.gz          16-Oct-2020 13:19     13M
onygenales_odb10.2020-08-05.tar.gz                 16-Oct-2020 13:19    233M
oscillatoriales_odb10.2020-03-06.tar.gz            16-Oct-2020 13:19     29M
passeriformes_odb10.2020-08-05.tar.gz              16-Oct-2020 13:20    298M
pasteurellales_odb10.2020-03-06.tar.gz             16-Oct-2020 13:19     19M
planctomycetes_odb10.2020-03-06.tar.gz             16-Oct-2020 13:19     13M
plasmodium_odb10.2020-08-05.tar.gz                 16-Oct-2020 13:20    199M
pleosporales_odb10.2020-08-05.tar.gz               16-Oct-2020 13:19    288M
poales_odb10.2020-08-05.tar.gz                     16-Oct-2020 13:19    186M
polyporales_odb10.2020-08-05.tar.gz                16-Oct-2020 13:20    206M
primates_odb10.2020-08-05.tar.gz                   16-Oct-2020 13:19    451M
propionibacteriales_odb10.2020-03-06.tar.gz        16-Oct-2020 13:19     14M
proteobacteria_odb10.2020-03-06.tar.gz             16-Oct-2020 13:19      8M
pseudomonadales_odb10.2020-03-06.tar.gz            16-Oct-2020 13:19     17M
rhizobiales_odb10.2020-03-06.tar.gz                16-Oct-2020 13:19     15M
rhizobium-agrobacterium_group_odb10.2020-03-06...> 16-Oct-2020 13:19     34M
rhodobacterales_odb10.2020-03-06.tar.gz            16-Oct-2020 13:19     19M
rhodospirillales_odb10.2020-03-06.tar.gz           16-Oct-2020 13:19     14M
rickettsiales_odb10.2020-03-06.tar.gz              16-Oct-2020 13:19      8M
saccharomycetes_odb10.2020-08-05.tar.gz            16-Oct-2020 13:20    109M
sauropsida_odb10.2020-09-10.tar.gz                 16-Oct-2020 13:19    499M
selenomonadales_odb10.2020-03-06.tar.gz            16-Oct-2020 13:19     16M
solanales_odb10.2020-08-05.tar.gz                  16-Oct-2020 13:19    196M
sordariomycetes_odb10.2020-08-05.tar.gz            16-Oct-2020 13:19    206M
sphingobacteriia_odb10.2020-03-06.tar.gz           16-Oct-2020 13:20     21M
sphingomonadales_odb10.2020-03-06.tar.gz           16-Oct-2020 13:19     22M
spirochaetales_odb10.2020-03-06.tar.gz             16-Oct-2020 13:20      8M
spirochaetes_odb10.2020-03-06.tar.gz               16-Oct-2020 13:20      6M
spirochaetia_odb10.2020-03-06.tar.gz               16-Oct-2020 13:19      6M
stramenopiles_odb10.2020-08-05.tar.gz              16-Oct-2020 13:19      5M
streptomycetales_odb10.2020-03-06.tar.gz           16-Oct-2020 13:20     31M
streptosporangiales_odb10.2020-03-06.tar.gz        16-Oct-2020 13:19     22M
sulfolobales_odb10.2020-03-06.tar.gz               16-Oct-2020 13:19     22M
synechococcales_odb10.2020-03-06.tar.gz            16-Oct-2020 13:19     16M
synergistetes_odb10.2020-03-06.tar.gz              16-Oct-2020 13:19     14M
tenericutes_odb10.2020-03-06.tar.gz                16-Oct-2020 13:20      4M
tetrapoda_odb10.2020-09-10.tar.gz                  16-Oct-2020 13:19    561M
thaumarchaeota_odb10.2020-03-06.tar.gz             16-Oct-2020 13:20     13M
thermoanaerobacterales_odb10.2020-03-06.tar.gz     16-Oct-2020 13:19     10M
thermoplasmata_odb10.2020-03-06.tar.gz             16-Oct-2020 13:20      7M
thermoproteales_odb10.2020-03-06.tar.gz            16-Oct-2020 13:19      8M
thermoprotei_odb10.2020-03-06.tar.gz               16-Oct-2020 13:20      6M
thermotogae_odb10.2020-03-06.tar.gz                16-Oct-2020 13:19     16M
thiotrichales_odb10.2020-03-06.tar.gz              16-Oct-2020 13:20     11M
tissierellales_odb10.2020-03-06.tar.gz             16-Oct-2020 13:19      9M
tissierellia_odb10.2020-03-06.tar.gz               16-Oct-2020 13:19      8M
tremellomycetes_odb10.2020-08-05.tar.gz            16-Oct-2020 13:19    210M
verrucomicrobia_odb10.2020-03-06.tar.gz            16-Oct-2020 13:19     11M
vertebrata_odb10.2020-09-10.tar.gz                 16-Oct-2020 13:19    409M
vibrionales_odb10.2020-03-06.tar.gz                16-Oct-2020 13:20     26M
viridiplantae_odb10.2020-09-10.tar.gz              16-Oct-2020 13:20     36M
xanthomonadales_odb10.2020-03-06.tar.gz            16-Oct-2020 13:19     24M

Address of the bookmark: https://busco-data.ezlab.org/v4/data/lineages/

]]> Jit https://bioinformaticsonline.com/bookmarks/view/33219/dbcan-a-web-server-and-database-for-automated-carbohydrate-active-enzyme-annotation Mon, 29 May 2017 05:39:29 -0500 https://bioinformaticsonline.com/bookmarks/view/33219/dbcan-a-web-server-and-database-for-automated-carbohydrate-active-enzyme-annotation <![CDATA[dbCAN: a web server and DataBase for automated Carbohydrate-active enzyme ANnotation]]> dbCAN is a web server and DataBase for automated Carbohydrate-active enzyme ANnotation, funded by the BioEnergy Science Center of the DOE. Similar resources on the web include CAZy database and CAT. All data in dbCAN are generated based on the family classification from CAZy database while it has the following unique features compared with CAZy database and CAT:

  • dbCAN provides the capability of automated and comprehensive CAZyme annotation of a given genome submitted by the user;
  • dbCAN provides an explicitly defined signature domain for each and every CAZyme family along with its location in all the relevant full-length CAZyme proteins in all sequenced genomes;
  • dbCAN provides the most complete set of metagenomic CAZyme genes published so far and represents the first step towards discovering novel CAZyme catalysts in metagenomes;
  • dbCAN provides a subfamily classification of the existing CAZyme families based on sequence similarities;
  • dbCAN make all pre-computed data freely available to the public, including sequence alignments, hidden markov models (HMMs) and phylogenies of the signature domain regions in each and every CAZyme family and subfamily.

dbCAN is updated regularly when CAZy database created new families based on latest literature.

Address of the bookmark: http://csbl.bmb.uga.edu/dbCAN/index.php

]]> Jit https://bioinformaticsonline.com/bookmarks/view/34443/opera-an-optimal-genome-scaffolding-program Mon, 27 Nov 2017 10:18:20 -0600 https://bioinformaticsonline.com/bookmarks/view/34443/opera-an-optimal-genome-scaffolding-program <![CDATA[Opera: An optimal genome scaffolding program]]> Opera (Optimal Paired-End Read Assembler) is a sequence assembly program (http://en.wikipedia.org/wiki/Sequence_assembly image). It uses information from paired-end or long reads to optimally order and orient contigs assembled from shotgun-sequencing reads.

An updated version called OPERA-LG has been re-engineered with features for the assembly of large and complex genomes.

Song Gao, Denis Bertrand, Burton K. H. Chia and Niranjan Nagarajan. OPERA-LG: efficient and exact scaffolding of large, repeat-rich eukaryotic genomes with performance guarantees. Genome Biology, May 2016, doi: 10.1186/s13059-016-0951-y.

Song Gao, Wing-Kin Sung, Niranjan Nagarajan. Opera: reconstructing optimal genomic scaffolds with high-throughput paired-end sequences. Journal of Computational Biology, Sept. 2011, doi:10.1089/cmb.2011.0170.

https://genomebiology.biomedcentral.com/articles/10.1186/s13059-016-0951-y

Address of the bookmark: https://sourceforge.net/projects/operasf/

]]> Jit https://bioinformaticsonline.com/pages/view/34418/spades-hybrid-genome-assembly Mon, 27 Nov 2017 08:05:40 -0600 https://bioinformaticsonline.com/pages/view/34418/spades-hybrid-genome-assembly <![CDATA[SPAdes hybrid genome assembly]]> When you have both Illumina and Nanopore data, then SPAdes remains a good option for hybrid assembly - SPAdes was used to produce the B fragilis assembly by Mick Watson’s group.

Again, running spades.py will show you the options:

spades.py

This produces:

SPAdes genome assembler v3.10.1

Usage: /usr/local/SPAdes-3.10.1-Linux/bin/spades.py [options] -o <output_dir>

Basic options:
-o      <output_dir>    directory to store all the resulting files (required)
--sc                    this flag is required for MDA (single-cell) data
--meta                  this flag is required for metagenomic sample data
--rna                   this flag is required for RNA-Seq data
--plasmid               runs plasmidSPAdes pipeline for plasmid detection
--iontorrent            this flag is required for IonTorrent data
--test                  runs SPAdes on toy dataset
-h/--help               prints this usage message
-v/--version            prints version

Input data:
--12    <filename>      file with interlaced forward and reverse paired-end reads
-1      <filename>      file with forward paired-end reads
-2      <filename>      file with reverse paired-end reads
-s      <filename>      file with unpaired reads
--pe<#>-12      <filename>      file with interlaced reads for paired-end library number <#> (<#> = 1,2,..,9)
--pe<#>-1       <filename>      file with forward reads for paired-end library number <#> (<#> = 1,2,..,9)
--pe<#>-2       <filename>      file with reverse reads for paired-end library number <#> (<#> = 1,2,..,9)
--pe<#>-s       <filename>      file with unpaired reads for paired-end library number <#> (<#> = 1,2,..,9)
--pe<#>-<or>    orientation of reads for paired-end library number <#> (<#> = 1,2,..,9; <or> = fr, rf, ff)
--s<#>          <filename>      file with unpaired reads for single reads library number <#> (<#> = 1,2,..,9)
--mp<#>-12      <filename>      file with interlaced reads for mate-pair library number <#> (<#> = 1,2,..,9)
--mp<#>-1       <filename>      file with forward reads for mate-pair library number <#> (<#> = 1,2,..,9)
--mp<#>-2       <filename>      file with reverse reads for mate-pair library number <#> (<#> = 1,2,..,9)
--mp<#>-s       <filename>      file with unpaired reads for mate-pair library number <#> (<#> = 1,2,..,9)
--mp<#>-<or>    orientation of reads for mate-pair library number <#> (<#> = 1,2,..,9; <or> = fr, rf, ff)
--hqmp<#>-12    <filename>      file with interlaced reads for high-quality mate-pair library number <#> (<#> = 1,2,..,9)
--hqmp<#>-1     <filename>      file with forward reads for high-quality mate-pair library number <#> (<#> = 1,2,..,9)
--hqmp<#>-2     <filename>      file with reverse reads for high-quality mate-pair library number <#> (<#> = 1,2,..,9)
--hqmp<#>-s     <filename>      file with unpaired reads for high-quality mate-pair library number <#> (<#> = 1,2,..,9)
--hqmp<#>-<or>  orientation of reads for high-quality mate-pair library number <#> (<#> = 1,2,..,9; <or> = fr, rf, ff)
--nxmate<#>-1   <filename>      file with forward reads for Lucigen NxMate library number <#> (<#> = 1,2,..,9)
--nxmate<#>-2   <filename>      file with reverse reads for Lucigen NxMate library number <#> (<#> = 1,2,..,9)
--sanger        <filename>      file with Sanger reads
--pacbio        <filename>      file with PacBio reads
--nanopore      <filename>      file with Nanopore reads
--tslr  <filename>      file with TSLR-contigs
--trusted-contigs       <filename>      file with trusted contigs
--untrusted-contigs     <filename>      file with untrusted contigs

Pipeline options:
--only-error-correction runs only read error correction (without assembling)
--only-assembler        runs only assembling (without read error correction)
--careful               tries to reduce number of mismatches and short indels
--continue              continue run from the last available check-point
--restart-from  <cp>    restart run with updated options and from the specified check-point ('ec', 'as', 'k<int>', 'mc')
--disable-gzip-output   forces error correction not to compress the corrected reads
--disable-rr            disables repeat resolution stage of assembling

Advanced options:
--dataset       <filename>      file with dataset description in YAML format
-t/--threads    <int>           number of threads
                                [default: 16]
-m/--memory     <int>           RAM limit for SPAdes in Gb (terminates if exceeded)
                                [default: 250]
--tmp-dir       <dirname>       directory for temporary files
                                [default: <output_dir>/tmp]
-k              <int,int,...>   comma-separated list of k-mer sizes (must be odd and
                                less than 128) [default: 'auto']
--cov-cutoff    <float>         coverage cutoff value (a positive float number, or 'auto', or 'off') [default: 'off']
--phred-offset  <33 or 64>      PHRED quality offset in the input reads (33 or 64)
                                [default: auto-detect]

As you can see this is also a “pipeline” of tools that can be switched on or off. SPAdes takes quite a long time, so for the purposes of this practical, something like this may suffice:

spades.py -t 4 \
          -m 32 \
          -k 31,51,71 \
          --only-assembler \
          -1 miseq.1.fastq -2 miseq.2.fastq \
          --nanopore minion.fastq \
          -o hybrid_assembly

In turn, these parameters mean

  • use 4 threads
  • max memory is 32Gb
  • use 3 kmer values to build the de bruijn graph(s) - 31, 51 and 71
  • only run the assembler, not the correction algorithm (for speed)
  • read 1 and read 2 of the MiSeq data
  • the nanopore data
  • put the output in folder “hybrid_assembly”
]]> Jit https://bioinformaticsonline.com/bookmarks/view/34528/cope-an-accurate-k-mer-based-pair-end-reads-connection-tool-to-facilitate-genome-assembly Wed, 06 Dec 2017 02:08:14 -0600 https://bioinformaticsonline.com/bookmarks/view/34528/cope-an-accurate-k-mer-based-pair-end-reads-connection-tool-to-facilitate-genome-assembly <![CDATA[COPE: an accurate k-mer-based pair-end reads connection tool to facilitate genome assembly]]> An efficient tool called Connecting Overlapped Pair-End (COPE) reads, to connect overlapping pair-end reads using k-mer frequencies. We evaluated our tool on 30× simulated pair-end reads from Arabidopsis thaliana with 1% base error. COPE connected over 99% of reads with 98.8% accuracy, which is, respectively, 10 and 2% higher than the recently published tool FLASH. When COPE is applied to real reads for genome assembly, the resulting contigs are found to have fewer errors and give a 14-fold improvement in the N50 measurement when compared with the contigs produced using unconnected reads.

Address of the bookmark: ftp://ftp.genomics.org.cn/pub/cope

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