摘要:
The present disclosure relates to a recombinant gram-negative bacterial cell comprising: a.) a mutant spr gene encoding a spr protein having a mutation at one or more amino acids selected from D133, H145, H157, N31, R62, I70, Q73, C94, S95, V98, Q99, R100, L108, Y115, V135, L136, G140, R144 and G147 and b.) a gene capable of expressing or overexpressing one or more proteins capable of facilitating protein folding, such as FkpA, Skp, SurA, PPiA and PPiD, wherein the cell has reduced Tsp protein activity compared to a wild-type cell, methods employing the cells, use of the cells in the expression of proteins in particular antibodies, such as anti Fc Rn antibodies and proteins made by the methods described herein.
摘要:
The invention relates to antibody molecules having specificity for antigenic determinants of human OX40, therapeutic uses of the antibody molecules and methods for producing said antibody molecules.
摘要:
The present invention relates to a new class of modified antibody fragments. The present invention provides an antibody fragment to which one or more effector molecules is attached characterized in that the native interchain disulphide bond between the heavy (CHI) and light (CL) chain constant regions is absent and the heavy chain (CHI) and light chain (CL) constant regions are linked by an interchain disulphide bond between a pair of engineered cysteines, one in the light chain constant (CL) region and the other in the heavy chain constant (CHI) region.
摘要:
The present disclosure provides an asymmetric mixed antibody comprising two heavy chains or heavy chain fragments each comprising at least a variable region, a hinge region and a CH1 domain, wherein a first heavy chain or fragment thereof is a class IgG4 and has: a the inter-chain cysteine at position 127, numbered according to the Kabat numbering system, in the CH1 domain is substituted with another amino acid; and b optionally one or more of the amino acids positioned in the upper hinge region is substituted with cysteine, and wherein the second heavy chain or fragment thereof is characterised in that part or all of the chain has a different amino acid sequence to said first heavy chain in at least the region outside the variable region (for example the constant region), formulations comprising the same, therapeutic used of both of the above, and processes for preparing the antibodies and formulation.
摘要:
A serum albumin binding antibody or fragment thereof comprising a heavy chain variable domain having the sequence given in SEQ ID NO: 1 or SEQ ID NO:2 and/or comprising a light chain variable domain having the sequence given in SEQ ID NO:3 or SEQ ID NO:4, in particular comprising a heavy chain variable domain and a light chain variable domain having the sequence given in SEQ ID NO: 1 and SEQ ID NO:3 or a heavy chain variable domain and a light chain variable domain having the sequence given in SEQ ID NO: 2 and SEQ ID NO:4. The disclosure also extends to polynucleotides encoding the antibodies or fragments, vectors comprising same and host cells capable of expressing the polynucleotides. The disclosure further includes pharmaceutical compositions comprising the antibodies or fragments and therapeutic used of any one of the same.
摘要翻译:1.一种血清白蛋白结合抗体或其片段,其包含具有SEQ ID NO:1或SEQ ID NO:2中给出的序列的重链可变结构域和/或包含具有SEQ ID NO:3中给出的序列的轻链可变区或 SEQ ID NO:4,特别包括具有SEQ ID NO:1和SEQ ID NO:3中给出的序列的重链可变结构域和轻链可变结构域或重链可变结构域和具有 SEQ ID NO:2和SEQ ID NO:4中给出的序列。 本公开还延伸到编码抗体或片段的多核苷酸,包含其的载体和能够表达多核苷酸的宿主细胞。 本公开还包括药物组合物,其包含使用其中任何一种的抗体或片段和治疗剂。
摘要:
A recombinant gram-negative bacterial cell comprising one or more of the following mutated protease genes: a. a mutated Tsp gene, wherein the mutated Tsp gene encodes a Tsp protein having reduced protease activity or is a knockout mutated Tsp gene; b. a mutated ptr gene, wherein the mutated ptr gene encodes a Protease III protein having reduced protease activity or is a knockout mutated ptr gene; and c. a mutated DegP gene encoding a DegP protein having chaperone activity and reduced protease activity; wherein the cell is isogenic to a wild-type bacterial cell except for the mutated Tsp gene and/or mutated ptr gene and/or mutated Deg P gene and optionally a polynucleotide sequence encoding a protein of interest.
摘要:
This invention relates to engineering of antibodies and more specifically provides altered antibodies of the IgG class to which one or more effector molecules are attached. The invention further relates to methods for the production of such conjugated antibodies.
摘要:
Expression vectors encoding bacteriophage signal peptides are described. The vectors may be used for the heterologous expression and secretion of polypeptides such as antibodies in bacterial host cells.
摘要:
The present invention provides a recombinant gram-negative bacterial cell comprising an expression vector, comprising a recombinant polynucleotide encoding DsbC and one or more polynucleotides encoding an antibody or an antigen binding fragment thereof specifically binding to CD154.
摘要:
The present invention provides a recombinant gram-negative bacterial cell comprising a mutant spr gene encoding a mutant spr protein and wherein the cell comprises a non-recombinant wild-type chromosomal Tsp gene.