Abstract: The present invention provides antibodies that show specific reactivity to disulfide-type HMGB1. Furthermore, the present invention provides methods for specifically measuring disulfide-type HMGB1 using the antibodies, and kits or reagents for the measurement. The present invention also provides methods for measuring total HMGB1 using such an antibody and an antibody that binds to both disulfide-type HMGB1 and reduced-type HMGB1 but does not bind to des-HMGB1, and kits or reagents for the measurement.

Abstract: The present invention provides antibodies that show specific reactivity to disulfide-type HMGB1. Furthermore, the present invention provides methods for specifically measuring disulfide-type HMGB1 using the antibodies, and kits or reagents for the measurement. The present invention also provides methods for measuring total HMGB1 using such an antibody and an antibody that binds to both disulfide-type HMGB1 and reduced-type HMGB1 but does not bind to des-HMGB1, and kits or reagents for the measurement.

Abstract: It was found that when measuring HMGB1 in samples using antibodies that bind to both HMGB2 and HMGB1, the reaction between HMGB2 and HMGB1 antibodies can be suppressed by coexisting HMGB2 absorbents (HMGB2 antibodies and/or HMGB2-derived peptides that inhibit the binding between HMGB2 and HMGB1 antibodies). More specifically, it was revealed that HMGB1 alone in samples can be measured or detected by contacting the samples with HMGB1 antibodies in the presence of HMGB2 absorbents.

Abstract: An objective of the present invention is to provide methods of producing human collagen molecules that are easy to isolate and purify and that have a structure substantially equivalent to that of a natural collagen molecule, wherein host cells that are transduced with a collagen gene synthesize large amounts of human collagen protein derived from a gene introduced into a high exogenous gene expression vector. Another objective of the present invention is to provide collagen molecules produced by the production methods. The present inventors discovered that a large amount of human collagen hardly contaminated with host cell-derived collagen could be produced, by selecting from various mammalian cells a host cell that has low collagen expression and introducing a collagen gene construct into a vector capable of high exogenous gene expression.

Abstract: An objective of the present invention is to provide methods of producing human collagen molecules that are easy to isolate and purify and that have a structure substantially equivalent to that of a natural collagen molecule, wherein host cells that are transduced with a collagen gene synthesize large amounts of human collagen protein derived from a gene introduced into a high exogenous gene expression vector. Another objective of the present invention is to provide collagen molecules produced by the production methods. The present inventors discovered that a large amount of human collagen hardly contaminated with host cell-derived collagen could be produced, by selecting from various mammalian cells a host cell that has low collagen expression and introducing a collagen gene construct into a vector capable of high exogenous gene expression.

Abstract: Disclosed is the novel hCL-K1 polypeptide which offers collectin activity. This polypeptide consists of consecutive 271 amino acids set out in SEQ ID NO: 2 and does not bind to both maltose and N-acetylgalactosamine.

Abstract: Disclosed is the novel hCL-K1 polypeptide which offer collectin activity. This polypeptide consists of consecutive 271 amino acids set out in SEQ ID NO: 2 and does not bind to both maltose and N-acetylgalactosamine.