Dataset Information

FISH+ is a ready-to-use proximity labeling method for simultaneous RNA visualization and RNA-interacting protein identification

ABSTRACT: FISH+ extends RNA FISH from visualization to protein identification through a simple, robust and highly accessible “watch-and-catch” proximity labeling method for punctate RNAs.

INSTRUMENT(S):

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Cell Culture, Diploid Cell

DISEASE(S): Disease Free

SUBMITTER: Mingxing Lu

LAB HEAD: Mingxing Lu

PROVIDER: PXD078627 | Pride | 2026-05-31

REPOSITORIES: Pride

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Dataset's files

Source:

			Action	DRS
	20230313LuMingXing-HXH-1_Slot1-11_1_3389.d.zip	Other
	Output_data.zip	Other
	checksum.txt	Txt

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Project description:Seafood fraud has become a global emerging issue, threatening food security and safety. Adulteration, substitution, dilution, and incorrect labeling of seafood products are fraudulent practices that violate consumer safety. In this context, developing sensitive, robust, and high-throughput molecular tools for food and feed authentication is becoming crucial for regulatory purposes. Analytical approaches such as proteomics mass spectrometry have shown promise in detecting incorrectly labeled products. For the application of these tools, genome information is crucial, but currently, for marine species of commercial importance, such information is unavailable. However, when combining proteomic analysis with spectra library matching, commercially important fish species were successfully identified, differentiated, and quantified in pure muscle samples and mixtures, even when genome information was scarce. This study further tested the previously developed proteomic-based spectra library-based approach was further tested to differentiate 29 fish species from the North Sea in individual samples, laboratory-prepared mixtures, and commercial samples. For authenticating libraries generated from 29 fish species, fresh muscle samples from the fish samples were matched against the reference libraries. Species of the fresh fish samples were correctly authenticated using the spectra libraries generated from the 29 fish species. Furthermore, processed commercial products containing mixtures of two or three fish species were matched against these spectra libraries to test the accuracy and robustness of this method for authentication of fish species. The results indicated that the method is suitable for the authentication of fish species from highly processed samples such as fish cakes and burgers. Spectra libraries built from 29 fish species in the North Sea can efficiently tackle current and future challenges in feed and food authentication analyses when prospecting new resources in the Arctic.

Dataset Information

FISH+ is a ready-to-use proximity labeling method for simultaneous RNA visualization and RNA-interacting protein identification

Dataset's files

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