Aging proteomics repository / PXD010115

Quantification of the Soluble Receptor of Advanced Glycation End-Products (sRAGE) by LC-MS Without the Use of Affinity Enrichment

PXD010115 ยท PRIDE record

Generated summary PXD010115 is a DDA label-free dataset (Homo sapiens) with 12 runs, 12 samples and no enrichment step (whole proteome). It was reanalysed with MetaMorpheus 1.1.12. At 1% FDR the search reports 119,030 PSMs, 10,258 peptidoforms and 445 protein groups, and the repository holds 7,952 PTM sites for it. 7 open warnings about it are recorded.
Written from catalog fields only (D17), with no model involved. It says nothing the tables below do not.

Open findings

Recorded against this dataset: 0 errors, 7 warnings and 1 for information

count_mismatch warning
The bundle holds 10258 where the producer reported 10257 (results.txt: All target peptides with q-value <= 0.01). Both numbers are kept; treat the producer's as canonical until the difference is explained.
count_mismatch warning
The bundle holds 119030 where the producer reported 119048 (results.txt: All target PSMs with q-value <= 0.01 (pxreprise:DEF-PSM-1PCT v1)). Both numbers are kept; treat the producer's as canonical until the difference is explained.
high_contamination warning
6.99% of protein intensity in the worst file, 3.14% median across 12 files (DEF-QC-9 v3.5)
low_core_use warning
14.78 avg cores of 32 allowed (S5)
occupancy_not_stored warning
Of 19129 occupancy entries MetaMorpheus wrote, some are not in ptm_stoichiometry: 6 site not in ptm_sites. 'site not in ptm_sites' means the entry's site has no ptm_sites row to key on; 'not determinable' means a cell's segments could not be assigned to its accessions from the sequences (QuantProject DEF-OCC-ACCESSION), which is never guessed. Absence of a row for these sites is therefore not NA. A 'duplicate' is a second entry for a (site, run) that already has a row: one with identical values loses nothing; one with DIFFERENT values means MetaMorpheus wrote two answers and the first in file order was stored (examples in bundle.json occupancy.differing_duplicates; which one should be stored is QuantProject's to define).
sdrf_uncoded warning
The deposited SDRF describes its samples only as text with no ontology term, so the curated organism part, cell type, disease and individual columns are empty. The text is in sample_characteristics: organism part: Blood serum. Match on it as text; it has not been mapped to a term.
unplaced_ptm_sites warning
Some modifications on peptides shared between proteins were not written to ptm_sites for one or more of those proteins, because the peptide could not be located in that protein's sequence and the producer's residue spans cannot be paired with its accessions. Of the (PSM, protein) pairs affected: 651 named a protein that does not contain the stored peptide -- typically a PSM ambiguous between peptide sequences (level 4 or 5), where this protein carries a different candidate than the first, which is the one stored. Sites on the other proteins of the same PSMs are written. Counts are in bundle.json under protein_databases.
occupancy_decoy_groups info
68 occupancy entries on decoy protein groups were not stored: MetaMorpheus computes them, and they are FDR machinery, not biology.

What was found

PSMs at 1% FDR119,030
Peptidoforms at 1% FDR10,258
Protein groups at 1% FDR445
PTM sites7,952
Quantitative values72,116
PSMs, all (including decoys and sub-threshold)192,315
MS2 identification rate (pxreprise:DEF-ID-RATE)54.6%
Contaminant share of PSMs (pxreprise:DEF-CONTAM-PSM)1.5%

How it was measured

Organism searched
Homo sapiens (the protein database's organism, not a statement about the samples)
Acquisition
DDA
Quantification
label_free
Labelling
none
Enrichment
none
Instrument vendor
Thermo
Runs / samples
12 / 12
Sample metadata
trusted
Search engine
MetaMorpheus 1.1.12
Protein database
UP000005640_all_genecentric_2026_03_agingPTM-v4.xml
Pipeline commit
5aec9eb024d8

Modifications

Search engine's nameUNIMODSites
Carbamidomethyl on CUNIMOD:42,607
Deamidation on NUNIMOD:71,059
Oxidation on MUNIMOD:35838
Deamidation on QUNIMOD:7819
Hydroxylation on PUNIMOD:35373
Citrullination on RUNIMOD:7223
Ammonia loss on NUNIMOD:385216
Hydroxylation on NUNIMOD:35180
Ammonia loss on CUNIMOD:385130
Hydroxylation on KUNIMOD:35115
Methylation on KUNIMOD:3488
Methylation on RUNIMOD:3464
Fe[III] on EUNIMOD:187059
Phosphoserine on SUNIMOD:2159
Fe[II] on EUNIMOD:95248
Fe[III] on DUNIMOD:187047
Water Loss on EUNIMOD:2745
Magnesium on EUNIMOD:95644
Trimethylation on KUNIMOD:3742
Dimethylation on KUNIMOD:3640
Acetylation on KUNIMOD:139
Magnesium on DUNIMOD:95637
Fe[II] on DUNIMOD:95235
Sodium on DUNIMOD:3033
Sodium on EUNIMOD:3030
Formylation on KUNIMOD:12229
Phosphorylation on SUNIMOD:2127
Dimethylation on RUNIMOD:3626
Phosphorylation on TUNIMOD:2124
Calcium on DUNIMOD:95117
Calcium on EUNIMOD:95115
Carbamyl on MUNIMOD:515
Carboxylation on EUNIMOD:29915
Carbamyl on XUNIMOD:513
GG (Ubiquitination Site) on KUNIMOD:12113
Glutarylation on KUNIMOD:184813
Potassium on DUNIMOD:53012
Potassium on EUNIMOD:53012
Sulfonation on YUNIMOD:4012
4-hydroxyproline on PUNIMOD:3511
Carbamyl on KUNIMOD:511
Phosphothreonine on TUNIMOD:2111
Butyrylation on KUNIMOD:128910
HexNAc on TUNIMOD:4310
Nitrosylation on CUNIMOD:27510
Carbamyl on CUNIMOD:59
HexNAc on SUNIMOD:439
N6-acetyllysine on KUNIMOD:19
Sulfotyrosine on YUNIMOD:408
Phosphorylation on YUNIMOD:216
Succinylation on KUNIMOD:646
Carboxylation on DUNIMOD:2995
Carboxylation on KUNIMOD:2995
Hydroxyproline on PUNIMOD:355
Crotonylation on KUNIMOD:13634
(3R)-3-hydroxyaspartate on DUNIMOD:353
N-acetylalanine on AUNIMOD:13
N6-succinyllysine on Kโ€”3
Nitrosylation on YUNIMOD:3543
Omega-N-methylarginine on RUNIMOD:343
Acetylation on XUNIMOD:12
Asymmetric dimethylarginine on RUNIMOD:362
Carbamyl on RUNIMOD:52
Deamidated asparagine on NUNIMOD:72
Malonylation on KUNIMOD:7472
(3R)-3-hydroxyasparagine on NUNIMOD:351
3'-nitrotyrosine on Yโ€”1
3-hydroxyproline on PUNIMOD:351
5-hydroxylysine on KUNIMOD:351
Hydroxybutyrylation on Kโ€”1
N-acetylmethionine on MUNIMOD:11
N-acetylserine on SUNIMOD:11
N6,N6,N6-trimethyllysine on KUNIMOD:371
N6,N6-dimethyllysine on KUNIMOD:361
N6-isonicotinyllysine on KUNIMOD:6971

Every modification with a site on a target protein, most frequent first. A dash in the UNIMOD column means the modification has no UNIMOD term in the registry that searched it, not that it is unknown. One chemistry can appear under two names (UniProt's and MetaMorpheus's); the catalog's ptm_sites_by_chemistry view merges them.

Data

The Parquet files for this dataset are not published yet.

Bundle
d6d3770b0aa808c2, written 2026-10-29T09:36:42+00:00 by ingester 1.4.0
Reconciliation
failed: psms_target_1pct, peptidoforms_target_1pct (the bundle disagrees with the producer's own count here)
Licence
CC-BY-4.0
Credit
NCEMS Aging Proteome Working Group