Proteomic Analysis of Protein in Human Fingerprints and Artificial Fingerprints

ABSTRACT: Quantitative genomic and proteomic evaluation of human latent fingerprint depositions represents a challenge within the forensic field, due to the high variability in the amount of DNA and protein initially deposited. To better assess recovery techniques for touch depositions, we present a method to produce simple and customizable artificial fingerprints. Capitalizing on recent advancements in the use of protein sequence identification for human forensic analysis, these samples contain a representative quantity of protein, originating from epidermal skin cells collected from the fingers and palms of volunteers. Proteomic sequencing by liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis indicates a high level of protein overlap between artificial and latent prints.

INSTRUMENT(S): Q Exactive

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Keratinocyte, Skin

SUBMITTER: Curt Hewitt  

LAB HEAD: Curt Hewitt

PROVIDER: PXD015445 | Pride | 2019-09-26

REPOSITORIES: Pride