49 results about "Protein isoform" patented technology

The present invention provides methods and compositions for screening, diagnosis and prognosis of Schizophrenia, for monitoring the effectiveness of Schizophrenia treatment, identifying patients most likely to respond to a particular therapeutic treatment and for drug development. Schizophrenia-Associated Features (SFs), detectable by two-dimensional electrophoresis of cerebrospinal fluid, serum or plasma are described. The invention further provides Schizophrenia-Associated Protein Isoforms (SPIs) detectable in cerebrospinal fluid, serum or plasma, preparations comprising isolated SPIs, antibodies immunospecific for SPIs, and kits comprising the aforesaid.

The present invention provides for methods of quantitating the amounts of proteins or peptides, including those that are closely related isoforms, using matrix-assisted laser desorption / ionization time of flight mass spectrometry (MALDI-TOF-MS). Measurement of protein concentrations in vivo has been extremely difficult and problematic, and protein concentrations have not been shown to correlate well with mRNA levels, the standard used in the past. The present invention overcomes the deficiencies of prior methodologies by taking advantage of MALDI-TOF-MS technology and applying it to proteins and peptides in a way that allows for accurate, quantitative measurement in vivo of protein or peptide concentrations.

The invention relates to methods, reagents and apparatus for detecting protein isoforms (e.g., those due to alternative splicing, or different disease protein isoforms or degradation products) in a sample, including using combinations of capture agents to identify the isoforms to be detected / measured.

Provided herein are antisense oligonucleotides, compositions comprising antisense oligonucleotides, and methods for the use of antisense oligonucleotides in manipulating translation. Expression of isoforms of proteins expressed from different start codons of the same transcript are inhibited by antisense oligonucleotides, which may also enhance expression of non-target isoforms.

A method for qualitatively and quantitatively detecting a protein isoform (p450 isozyme) in a sample using MALDI-TOF mass spectrometry or immunochemistry using a unique proteolytic peptide for the isoform. Relative and absolute quantitation can be performed using calibration curves with P450 isozyme-specific peptide standards.

The present invention provides methods and compositions for screening, diagnosis and prognosis of Alzheimer's disease, for monitoring the effectiveness of Alzheimer's disease treatment and for drug development. Alzheimer's disease-Associated Features (ADFs) detectable by two-dimensional electrophoresis of brain tissue are described. The invention further provides Alzheimer's disease-Associated Protein Isoforms (ADPIs) detectable in brain tissue, preparations comprising isolated ADPIs, antibodies specific for ADPIs and kits comprising the aforesaid.

A combination of “bottom up” and “top down” MS analysis of posttranslational modifications in complex proteins is described. The method comprises digestion of the protein with an enzyme that forms larger peptide fragments than trypsin (>3000 D), performing HPLC with the fragments and applying a new data acquisition strategy using on-line coupling with e.g. LTQ-FTMS, a hybrid mass spectrometer that couples a linear ion trap with a Fourier transform ion cyclotron resonance (FTICR) cell. The method is applied to analysis of posttranslational modifications of protein isoforms.

The present invention provides methods and compositions for screening, diagnosis and prognosis of Schizophrenia, for monitoring the effectiveness of Schizophrenia treatment, identifying patients most likely to respond to a particular therapeutic treatment and for drug development. Schizophrenia-Associated Features (SFs), detectable by two-dimensional electrophoresis of cerebrospinal fluid, serum or plasma are described. The invention further provides Schizophrenia-Associated Protein Isoforms (SPIs) detectable in cerebrospinal fluid, serum or plasma, preparations comprising isolated SPIs, antibodies immunospecific for SPIs, and kits comprising the aforesaid.

The invention relates to methods, reagents and apparatus for detecting protein isoforms (e.g., those due to alternative splicing, or different disease protein isoforms or degradation products) in a sample, including using combinations of capture agents, each combination being unique to the splicing variant to be detected / measured.

The present invention concerns genes containing mutations associated with autism its onset and development and also to the encoded proteins of said genes associated with autism, its onset and development and the use of said genes, proteins or protein isoforms. The invention thus also relates to methods of screening for, diagnosis and treatment of autism in human subjects e.g., clinical screening, diagnosis, prognosis, therapy and prophylaxis, as will as for drug screening and drug development.

Methods for treating arthritis comprising 14-3-3 antagonists that are capable of specifically binding to extracellularly localized 14-3-3 eta and / or 14-3-3 gamma protein isoforms are provided. In preferred embodiments, the 14-3-3 antagonist is an inhibitory peptide or an anti-14-3-3 antibody. The 14-3-3 antagonists are also formulated in a pharmaceutical composition and used in a method for reducing matrix metalloprotease (MMP) expression in the synovial fluid of a patient, wherein the MMP is MMP-1 or MMP-3.

A method for screening for or diagnosis or prognosis of a neurological disorder in a subject, for determining the stage or severity of such a neurological disorder in a subject, for identifying a subject at risk of developing such a neurological disorder, or for monitoring the effect of therapy administered to a subject having such a neurological disorder, said method comprising: (a) analyzing a test sample of body fluid or tissue from the subject said sample comprising at least one Protein Isoform selected from the Protein Isoform Nos 1-6 listed in Table 1; and (b) comparing the abundance of said Protein Isoform(s) in the test sample with the abundance of said Protein Isoform(s) in a test sample from one or more persons free from neurological disorder, or with a previously determined reference range for that Protein Isoform in subjects free from neurological disorder, wherein a diagnosis of or a positive result in screening for or a prognosis of a more advanced condition of said neurological disorder is indicated by increased abundance of said Protein Isoform(s) in the test sample relative to the abundance of said Protein Isoform(s) in the test sample from one or more persons free from neurological disorder, or with the previously determined reference range for that Protein Isoform in subjects free from neurological disorder.

There is provided a method for screening for or, diagnosis or prognosis of a neurological disorder in a subject, for determining the stage or severity of such a neurological disorder in a subject, for identifying a subject at risk of developing such a neurological disorder, or for monitoring the effect of therapy administered to a subject having such a neurological disorder, said method comprising: (a) analyzing a test sample of body fluid or tissue from the subject said sample comprising at least one Protein Isoform selected from one of the following Protein Isoform Families: PIF-1 and PIF-2; and (b) comparing the abundance of said Protein Isoform(s) in the test sample with the abundance of said Protein Isoform(s) in a test sample from one or more persons free from neurological disorder, or with a previously determined reference range for that Protein Isoform in subjects free from neurological disorder, wherein a diagnosis of or a positive result in screening for or a prognosis of a more advanced condition of said neurological disorder is indicated by an increased abundance of said Protein Isoform(s) in the test sample relative to the abundance of said Protein Isoform(s) in the test sample from one or more persons free from neurological disorder, or with the previously determined reference range for that Protein Isoform in subjects free from neurological disorder.

The present invention provides methods and compositions for screening, diagnosis and prognosis of BAD, for monitoring the effectiveness of BAD treatment, and for drug development. BAD-Associated Features (DFs), detectable by two-dimensional electrophoresis of cerebrospinal fluid, serum or plasma are described. The invention further provides BAD-Associated Protein Isoforms (DPIs) detectable in cerebrospinal fluid, serum or plasma, preparations comprising isolated DPIs, antibodies immunospecific for DPIs, and kits comprising the aforesaid.

Methods are provided for the analysis, including the serial analysis, of very small samples of tissue. The methods utilize a nanofluidic proteomic immunoassay (NIA) to quantify total and low-abundance protein isoforms in a small amount of lysate. NIA detection accurately measure oncoprotein expression and activation in limited clinical specimens, including isoforms that differ in post-translational modifications, such as phosphorylation, and the like. The NIA detection method combines isoelectric protein focusing and antibody detection in a nanofluidic system.

Provided herein are antisense oligonucleotides, compositions comprising antisense oligonucleotides, and methods for the use of antisense oligonucleotides in manipulating translation. Expression of isoforms of proteins expressed from different start codons of the same transcript are inhibited by antisense oligonucleotides, which may also enhance expression of non-target isoforms.

The invention features methods and kits for determining the presence of, or a predisposition to develop, Sjögren's syndrome in humans. The invention features methods to detect changes in the levels of one or more LMP-2 protein isoforms, in particular phosphorylated isoforms of LMP-2, and to detect changes in cellular protein phosphorylation and ubiquitination in samples from Sjögren's patients.

Provided are compositions related to HSD17B13 variants, including nucleic acid molecules and polypeptides related to variants of HSD17B13, and cells comprising those nucleic acid molecules and polypeptides. Also provided are methods related to HSD17B13 variants. Such methods include methods for detecting the presence of the HSD17B13 rs72613567 variant in a biological sample comprising genomic DNA,for detecting the presence or levels of any one of variant HSD17B13 Transcripts C, D, E, F, G, and H, and particularly D, in a biological sample comprising mRNA or cDNA, or for detecting the presenceor levels of any one of variant HSD17B13 protein Isoforms C, D, E, F, G, or H, and particularly D, in a biological sample comprising protein. Also provided are methods for determining a subject's susceptibility to developing a liver disease or of diagnosing a subject with liver disease.

The present invention relates to novel alternative splice transcripts (AST) for MICA (MHC class I related chain alpha) encoding novel MICA protein isoforms and uses thereof. In particular, the present invention relates to an isolated polypeptide at least 80% of identity with a sequence selected from the group consisting of SEQ ID NO:1 (MICA-A), SEQ ID NO:2 (MICA-B1), SEQ ID NO:3 (MICA-B2); SEQ ID NO:4 (MICA-C) and SEQ ID NO: (MICA-D).

The present invention relates to a new Ena / VASP protein isoform, uses thereof, diagnostic methods and kits comprising the same.

The present invention provides methods and compositions for screening, diagnosis and prognosis of vascular response, for monitoring the effectiveness of vascular response treatment, identifying patients most likely to respond to a particular therapeutic treatment and for drug development. In particular, the screening of drug candidates for their ability to induce a vascular response. Vascular Response-Associated Features (VRFs), detectable by two-dimensional electrophoresis of blood, serum or plasma are described. The invention further provides Vascular Response-Associated Protein Isoforms (VRPIs) detectable in blood, serum or plasma, preparations comprising isolated VRPIs, antibodies immunospecific for VRPIs, and kits comprising the aforesaid.

A method for screening for or diagnosis or prognosis of a neurological disorder associated with de-regulated glutamate signalling in a subject, for determining the stage or severity of such a neurological disorder in a subject, for identifying a subject at risk of developing such a neurological disorder, or for monitoring the effect of therapy administered to a subject having such a neurological disorder, said method comprising:(a) analyzing a test sample of body fluid or tissue from the subject said sample comprising at least one Protein Isoform selected from the following Protein Isoform Families: PIF-1, PIF-2, and PIF-3 in a detectable amount; and(b) comparing the abundance of said Protein Isoform(s) in the test sample or the abundance of said Protein Isoform(s) relative to another Protein Isoform with the abundance or relative abundance of said Protein Isoform(s) in a test sample from one or more persons free from neurological disorder, or with a previously determined reference range for that Protein Isoform in subjects free from neurological disorder, wherein a diagnosis of or a positive result in screening for or a prognosis of a more advanced condition of said neurological disorder is indicated by (i) decreased abundance or relative abundance of PIF-1 and / or (ii) increased abundance or relative abundance of PIF-2 and / or (iii) decreased abundance or relative abundance of PIF-3.