Affinity Capture-MS

An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner is identified by mass spectrometric methods.

Publication

Comprehensive interactome profiling of the human Hsp70 network highlights functional differentiation of J domains.

Piette BL, Alerasool N, Lin ZY, Lacoste J, Lam MHY, Qian WW, Tran S, Larsen B, Campos E, Peng J, Gingras AC, Taipale M

Hsp70s comprise a deeply conserved chaperone family that has a central role in maintaining protein homeostasis. In humans, Hsp70 client specificity is provided by 49 different co-factors known as J domain proteins (JDPs). However, the cellular function and client specificity of JDPs have largely remained elusive. We have combined affinity purification-mass spectrometry (AP-MS) and proximity-dependent biotinylation (BioID) to characterize the ... [more]

Mol Cell Apr. 27, 2021; (); [Pubmed: 33957083]

Quantitative Score

  • 3.81 [FoldChange]

Throughput

  • High Throughput

Additional Notes

  • High confidence interactions were identified as having an average probability of the identified interaction (AvgP) >= 0.98. The associated score represents the fold change of spectral counts (or intensities) for each individual interaction.

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
HSPA2 HSPH1
Affinity Capture-MS
Affinity Capture-MS

An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner is identified by mass spectrometric methods.

High0.3752BioGRID
3251645
HSPH1 HSPA2
Co-fractionation
Co-fractionation

Interaction inferred from the presence of two or more protein subunits in a partially purified protein preparation. If co-fractionation is demonstrated between 3 or more proteins, then add them as a complex.

High0.8488BioGRID
1263326
HSPA2 HSPH1
Cross-Linking-MS (XL-MS)
Cross-Linking-MS (XL-MS)

An interaction is detected between two proteins using chemically reactive or photo-activatable cross-linking reagents that covalently link amino acids in close proximity, followed by mass spectrometry analysis to identify the linked peptides (reviewed in PMID 37406423, 37104977). Experiments may be carried with live cells or cell lysates in which all proteins are expressed at endogenous levels (e.g. PMID 34349018, 35235311) or with recombinant proteins (e.g., PMID 28537071).

High-BioGRID
3679574

Curated By

  • BioGRID