Proteomics

Dataset Information

0

Fingermark Proteomics - Proteomics as a new tool to study fingermark ageing in forensics


ABSTRACT: Fingermarks are frequently encountered at crime scenes and on related items, and naturally protected against fast degradation due to the abundance of recalcitrant substances, such as fatty acids and constituents of sebum. While representing a major and valuable source for donor identification through latent fingerprint analysis, fingermarks are also rich in molecules that can be used to acquire toxicological and biological donor profiling information. In addition, exogenous compounds in fingermarks have shown applicability for crime reconstruction and to assess offender and victim activities before, during and after a criminal act. A major limitation in these respects is the lack of temporal information, which makes it difficult to establish forensic timelines. To address this issue, we developed a fingermark sampling and protein extraction protocol easily adaptable to forensic settings. A bottom-up proteomics approach was then applied to confidently identify protein traces and assess the fingermark proteome dynamic changes at different stages of ageing. This approach was also applied to contaminated fingermarks to examine fingermark ageing in light of realistic forensic scenarios and detect donor contact with bodily fluids. These data represent HR-MS recordings from fingermarks deposited on glass substrate. Fingermarks originated from both female and male donors and from all five digits, and were aged for up to 16 days. Contamination sources included urine, saliva and vaginal fluid.

INSTRUMENT(S): 6520A Quadrupole Time-of-Flight LC/MS

ORGANISM(S): Homo Sapiens (human)

SUBMITTER: Stijn Oonk  

LAB HEAD: Stijn Oonk

PROVIDER: PXD009706 | Pride | 2018-12-21

REPOSITORIES: Pride

Dataset's files

Source:
Action DRS
blancs.zip Other
bodyfluids.zip Other
fmagedatad0.zip Other
fmagedatad12.zip Other
fmagedatad16.zip Other
Items per page:
1 - 5 of 8
altmetric image

Publications

Proteomics as a new tool to study fingermark ageing in forensics.

Oonk Stijn S   Schuurmans Tom T   Pabst Martin M   de Smet Louis C P M LCPM   de Puit Marcel M  

Scientific reports 20181106 1


Fingermarks are trace evidence of great forensic importance, and their omnipresence makes them pivotal in crime investigation. Police and law enforcement authorities have exploited fingermarks primarily for personal identification, but crucial knowledge on when fingermarks were deposited is often lacking, thereby hindering crime reconstruction. Biomolecular constituents of fingermark residue, such as amino acids, lipids and proteins, may provide excellent means for fingermark age determination,  ...[more]

Similar Datasets

2019-02-18 | E-MTAB-6814 | biostudies-arrayexpress
2022-11-07 | PXD023939 | Pride
2014-07-31 | E-GEOD-55734 | biostudies-arrayexpress
2014-07-31 | GSE55734 | GEO
2015-09-24 | E-GEOD-69886 | biostudies-arrayexpress
2008-04-05 | E-GEOD-8069 | biostudies-arrayexpress
2014-04-29 | E-GEOD-57127 | biostudies-arrayexpress
| PRJNA666740 | ENA
2014-10-01 | E-GEOD-59467 | biostudies-arrayexpress
2020-08-20 | PXD020217 | Pride