Recombinant adenoviral vectors, immunogenic compositions thereof and their use in medicine, and methods for generating recombinant adenoviral vectors are provided. In particular, the an adenovirus vector having a capsid derived from chimpanzee adenovirus AdY25, wherein the capsid encapsidates a nucleic acid molecule comprising an exogeneous nucleotide sequence of interest are provided.

The present invention relates to a covalently closed circular recombinant DNA molecule comprising an origin of replication and an insert comprising a homopolymeric region, wherein the homopolymeric region is located at a distance of least 500 bp from the origin of replication in the direction of replication and/or wherein the insert comprising a homopolymeric region is oriented so that the direction of transcription of the insert is the same as the direction of replication of the origin of replication. The invention further relates to the use of the covalently closed circular recombinant DNA molecule for increasing the yield and/or shortening the fermentation time during fermentation.

The invention provides a genetically modified non-human animal that comprises in its genome unrearranged T cell receptor variable gene loci, as well as embryos, cells, and tissues comprising the same. Also provided are constructs for making said genetically modified non-human animal and methods of making the same. Various methods of using the genetically modified non-human animal are also provided.

Non-human animals, tissues, cells, and genetic material are provided that comprise a modification of an endogenous non-human heavy chain immunoglobulin sequence and that comprise an ADAM6 activity functional in a mouse, wherein the non-human animals express a human immunoglobulin heavy chain variable domain and a cognate human immunoglobulin λ light chain variable domain.

The invention discloses methods for the generation of chimaeric human—non-human antibodies and chimaeric antibody chains, antibodies and antibody chains so produced, and derivatives thereof including fully humanised antibodies; compositions comprising said antibodies, antibody chains and derivatives, as well as cells, non-human mammals and vectors, suitable for use in said methods.

Non-human animals, tissues, cells, and genetic material are provided that comprise a modification of an endogenous non-human heavy chain immunoglobulin sequence and that comprise an ADAM6 activity functional in a mouse, wherein the non-human animals express a human immunoglobulin heavy chain variable domain and a cognate human immunoglobulin λ light chain variable domain.

An expression system for expressing a herpesvirus glycoprotein complex including a vector inserted with two or more nucleic acid sequences that encode two or more subunits of a herpesvirus glycoprotein complex linked by one or more linking sequences such that the subunits are co-expressed simultaneously and self-processed to assemble into a glycoprotein complex. The expression system or the vector can be included in a vaccine composition. The vaccine composition can be used for preventing or treating herpesvirus infections.

The present invention relates to a covalently closed circular recombinant DNA molecule comprising an origin of replication and an insert comprising a homopolymeric region, wherein the homopolymeric region is located at a distance of least 500 bp from the origin of replication in the direction of replication and/or wherein the insert comprising a homopolymeric region is oriented so that the direction of transcription of the insert is the same as the direction of replication of the origin of replication. The invention further relates to the use of the covalently closed circular recombinant DNA molecule for increasing the yield and/or shortening the fermentation time during fermentation.

Mice having a restricted immunoglobulin heavy chain locus are provided, wherein the locus is characterized by a single polymorphic human V.sub.H gene segment, a plurality of human D.sub.H gene segments and a plurality of J.sub.H gene segments. Methods for making antibody sequences that bind an antigen (e.g., a viral antigen) are provided, comprising immunizing a mouse with an antigen of interest, wherein the mouse comprises a single human V.sub.H gene segment, a plurality of human D.sub.H gene segments and a plurality of J.sub.H gene segments, at the endogenous immunoglobulin heavy chain locus.

A genetically modified mouse is provided, wherein the mouse expresses an immunoglobulin light chain repertoire characterized by a limited number of light chain variable domains. Mice are provided that present a choice of two human light chain variable gene segments such that the immunoglobulin light chains expresses by the mouse comprise one of the two human light chain variable gene segments. Methods for making bispecific antibodies having universal light chains using mice as described herein, including human light chain variable regions, are provided. Methods for making human variable regions suitable for use in multispecific binding proteins, e.g., bispecific antibodies, and host cells are provided.