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BAC resources for the rat genome project.
Two 11-fold redundant bacterial artificial chromosome (BAC) libraries (RPCI-32 and CHORI-230) have been constructed to support the rat genome project. The first library was constructed using a male Brown Norway (BN/SsNHsd) rat as a DNA source long before plans for rat genome sequencing had been launched. The second library was prepared from a highly inbred female (BN/SsNHsd/MCW) rat in support of the rat genome sequencing project. The use of an inbred rat strain is essential to avoid...
Influenza A Viruses in Whistling Ducks (Subfamily Dendrocygninae).
As compared to other Anseriformes, data related to influenza A virus (IAV) detection and isolation, and IAV antibody detection in whistling ducks ( spp. and ; subfamily Dendrocygninae) are limited. To better evaluate the potential role of whistling ducks in the epidemiology of IAV, we (1) conducted surveillance for IAV from black-bellied whistling ducks (BBWD, ) sampled in coastal Louisiana, USA, during February 2018 and 2019, and (2) reviewed the published literature and Influenza Resource...
The TIGR rice genome annotation resource: annotating the rice genome and creating resources for plant biologists.
Rice is not only a major food staple for the world's population but it also is a model species for a major group of flowering plants, the monocotyledonous plants. Draft genomic sequence of two subspecies of rice, Oryza sativa spp. japonica and indica ssp. are publicly available. To provide the community with a resource to data-mine the rice genome, we have constructed an annotation resource for rice (http://www.tigr.org/tdb/e2k1/osa1/). In this resource, we have annotated the rice genome...
Meta-Analysis of the Expansion in the Field of Structural Biology of ABC Transporters.
ABC transporters are molecular machines which power the solute transport using ATP hydrolysis. The structural biology of ABC transporters has been exploding for the last few years, and this study explores timelines and trends for various attributes such as structural tools, resolution, fold, sources, and group leaders. This study also evidences the significance of mammalian expression systems, advancements in structural biology tools, and the developing interest of group leaders across the...
Archaeopteryx.js: Web-based Visualization and Exploration of Annotated Phylogenetic Trees
As part of the Virus Pathogen Resource (ViPR) and the Influenza Research Database (IRD) bioinformatics resources we have developed Archaeopteryx.js for the web-based visualization and exploration of annotated phylogenetic trees. A unique advantage of Archaeopteryx.js is its user-driven metadata-based visualization abilities, which allow for visual pattern recognition in phylogenetic data. For example, data (such as virus clade and subtype, host species, temporal and geographic information)...
Use of the complete genome sequence information of Haemophilus influenzae strain Rd to investigate lipopolysaccharide biosynthesis.
The availability of the complete 1.83-megabase-pair sequence of the Haemophilus influenzae strain Rd genome has facilitated significant progress in investigating the biology of H.influenzae lipopolysaccharide (LPS), a major virulence determinant of this human pathogen. By searching the H. influenzae genomic database, with sequences of known LPS biosynthetic genes from other organisms, we identified and then cloned 25 candidate LPS genes. Construction of mutant strains and characterization...
Mutation of a mutL homolog in hereditary colon cancer.
Some cases of hereditary nonpolyposis colorectal cancer (HNPCC) are due to alterations in a mutS-related mismatch repair gene. A search of a large database of expressed sequence tags derived from random complementary DNA clones revealed three additional human mismatch repair genes, all related to the bacterial mutL gene. One of these genes (hMLH1) resides on chromosome 3p21, within 1 centimorgan of markers previously linked to cancer susceptibility in HNPCC kindreds. Mutations of hMLH1 that...
FgBud3, a Rho4-Interacting Guanine Nucleotide Exchange Factor, Is Involved in Polarity Growth, Cell Division and Pathogenicity of Fusarium graminearum.
Rho GTPases are signaling macromolecules that are associated with developmental progression and pathogenesis of . Generally, enzymatic activities of Rho GTPases are regulated by Rho GTPase guanine nucleotide exchange factors (RhoGEFs). In this study, we identified a putative RhoGEF encoding gene () in database and proceeded further by using a functional genetic approach to generate targeted gene deletion mutant. Phenotypic analysis results showed that the deletion of caused severe...
Virtual Comparative Metagenomics
We have created an open virtualization format (OVF) package of JCVI's Metagenomics Reports (METAREP)- a high performance comparative metagenomics analysis tool. The software runs on a web server, retrieves data from two different database systems and uses R for statistical analysis. The new OVF package bundles all these 3rd party tools and is configured to run out of the box in a virtual machine. To run a virtual version of METAREP on your machine, follow these steps download the...
Unveiling the microbial realm with VEBA 2.0: a modular bioinformatics suite for end-to-end genome-resolved prokaryotic, (micro)eukaryotic and viral multi-omics from either short- or long-read sequencing.
The microbiome is a complex community of microorganisms, encompassing prokaryotic (bacterial and archaeal), eukaryotic, and viral entities. This microbial ensemble plays a pivotal role in influencing the health and productivity of diverse ecosystems while shaping the web of life. However, many software suites developed to study microbiomes analyze only the prokaryotic community and provide limited to no support for viruses and microeukaryotes. Previously, we introduced the Viral Eukaryotic...