Rat Spermatid Nuclear Transition Protein 1 (TNP1) ELISA Kit | TNP1 elisa kit
Rat Spermatid Nuclear Transition Protein 1 (TNP1) ELISA Kit
* Allow all reagents to warm to room temperature for at least 30 minutes before opening.
* Pre-rinse the pipet tip with reagent, use fresh pipet tips for each sample, standard and reagent to avoid contamination.
* Unused wells must be kept desiccated at 4 degree C in the sealed bag provided.
* Mix Thoroughly is very important for the result. It is recommended using low frequency oscillator or slight hand shaking every 10 minutes.
* It is recommended that all samples and standards be assayed in duplicate or triplicate.
Background: Transition protein-1 is a spermatid-specific product of the haploid genome which replaces histone and is itself replaced in the mature sperm by the protamines. Yu et al. (2000) generated mice lacking the major transition nuclear protein, TP1, by targeted deletion of the Tnp1 gene in mouse embryonic stem cells. Surprisingly, testis weights and sperm production were normal in the mutant mice, and only subtle abnormalities were detected in sperm morphology. Electron microscopy showed large rod-like structures in the chromatin of mutant step 13 spermatids, in contrast to the fine chromatin fibrils observed in wildtype. Steps 12-13 spermatid nuclei from the testis of Tnp1-null mice contained, in place of TP1, elevated levels of TP2 (TNP2) and some PRM2 precursor.
NCBI and Uniprot Product Information
NCBI Description
spermatid transitional protein; highly basic protein expressed during the brief period when histones are being replaced by protamines in the haploid stage of spermatogenesis [RGD, Feb 2006]
Uniprot Description
TP1: In the elongating spermatids of mammals, the conversion of nucleosomal chromatin to the compact, non-nucleosomal form found in the sperm nucleus is associated with the appearance of a small set of basic chromosomal transition proteins. Belongs to the nuclear transition protein 1 family.
Protein type: DNA-binding
Cellular Component: male germ cell nucleus; nucleosome
Molecular Function: DNA binding
Biological Process: chromatin remodeling; single strand break repair; sperm motility; spermatid nuclear elongation; nucleosome disassembly; sexual reproduction; multicellular organismal development; chromatin silencing; spermatogenesis; negative regulation of transcription, DNA-dependent; spermatid development
Research Articles on TNP1
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Product Notes
The Rat TNP1 tnp1 (Catalog #AAA9711657) is an ELISA Kit and is intended for research purposes only. The product is available for immediate purchase. The AAA9711657 ELISA Kit recognizes Rat TNP1. It is sometimes possible for the material contained within the vial of "Spermatid Nuclear Transition Protein 1 (TNP1), ELISA Kit" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
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