A fully automated, user-independent method is described for computer-mediated interpretation of data derived by mass spectrometry of an experimental peptide to identify and characterize a corresponding peptide sequence in a peptide database. The method identifies the corresponding sequence if it is present in the database, without the need for a skilled observer to choose from amongst a list of possible matches. By using an automated back-read process, the present method can uniquely identify a corresponding peptide sequence in a database based on a single matching peptide sequence. The method also permits mapping of mass spectral data to sequences in peptide or nucleotide databases for unambiguous identification of exons; determining a correct reading frame; identifying artefacts and errors in sequences; identifying mutations and polymorphisms; identifying post-translational modifications; and identifying exon-intron boundaries.
A method for determining the presence of one or more proteins of interest in a sample, which method comprises the step of: c) submitting the sample to conditions that allow fragmentation of the protein into target peptide fragments; and d) contacting the target peptide fragments with an array of capture agents immobilized on a solid support, the capture agents comprising those that recognize a target protein fragment; whereby the binding of the target peptide fragments with the capture agents is indicative of the presence of the protein(s) in the sample. A device comprising such an array, and its production, are also described.
[Problem] To provide a peptide, etc., capable of passing through the blood-brain barrier (BBB) by binding to a human transferrin receptor (hTfR). [Solution] A peptide, etc., having the amino acid sequence shown in SEQ ID NO: 1 (Ala-Val-Phe-Val-Trp-Asn-Tyr-Tyr-Ile-Ile-Ser-Cys) or an amino acid sequence having substitutions, deletions, additions, and/or insertions of 1 to 10 amino acid residues (inclusive) in the amino acid sequence shown in SEQ ID NO: 1.
[问题]提供一种能够通过与人转铁蛋白受体(hTfR)结合而通过血脑屏障(BBB)的多肽等。[解决方案]一种多肽等,具有 SEQ ID NO: 1 所示的氨基酸序列(Ala-Val-Phe-Val-Trp-Asn-Tyr-Tyr-Ile-Ile-Ser-Cys)或在 SEQ ID NO: 1 所示的氨基酸序列中具有 1 至 10 个氨基酸残基(含)的取代、缺失、添加和/或插入的氨基酸序列。
Cell lines
申请人:MEDIMMUNE LIMITED
公开号:US10253345B2
公开(公告)日:2019-04-09
There is provided inter alia a process for stabilizing a eukaryotic cell line which expresses PylRS and tRNAPyl and which is suitable for incorporation of a gene encoding a target protein containing one or more non-natural amino acids encoded by a nonsense codon which comprises culturing said cell line under conditions in which the adverse effect of tRNAPyl expression on cell viability and/or cell growth is reduced or eliminated.
Methods of treating volume depletion and kidney injury
申请人:THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
公开号:US11119104B2
公开(公告)日:2021-09-14
The present invention provides methods for treatment of volume-dependent Acute Kidney Injury (vAKI) and ischemic Acute Kidney Injury (iAKI), as well as methods for diagnosing vAKI and iAKI. The methods are based on determining the levels of PAPPA2, NGAL, KRT20, or TACSTD2 protein in a sample from a patient, such as a urine sample. The present invention also provides a device and a diagnostics kit for determining whether a sample from a subject contains PAPPA2, NGAL, KRT20, or TACSTD2 protein.