Dataset Information

Cross-linking MS analysis of HIV-2 Vpx-PHD3 protein interaction

ABSTRACT: This dataset presents chemical crosslinking mass spectrometry (CL-MS) analysis of protein-protein interactions between HIV-2 Vpx and PHD3. The experimental data includes MS spectra obtained from protein complexes comprising recombinant Vpx and PHD3 crosslinked using DSBU under physiological conditions. The samples underwent tryptic digestion following standard proteomics protocols, and the resulting peptides were analyzed using high-resolution LC-MS/MS.

ORGANISM(S): Human Immunodeficiency Virus 2

SUBMITTER: Kei Miyakawa

PROVIDER: PXD059241 | JPOST Repository | Thu Apr 03 00:00:00 BST 2025

REPOSITORIES: jPOST

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Dataset's files

Source:

			Action	DRS
	200714HF_Vx93_3_in-sol_150min.mgf	Mgf
	200714HF_Vx93_3_in-sol_150min.mzid	Mzid
	200714HF_Vx93_3_in-sol_150min.raw	Raw
	200714HF_Vx93_3_in-sol_150min.xlsx	Xlsx
	Vx93_recombinant_v20200622.fasta	Fasta

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Project description:To explore chorionic gonadotropin (CG)-regulated gene expression in the primate corpus luteum (CL), adult female rhesus macaques were treated with a model of simulated early pregnancy (SEP). Total RNA was isolated from individual CL and hybridized to AffymetrixM-bM-^DM-" GeneChip Rhesus Macaque Genome Arrays The level of 1192 transcripts changed expression > 2-fold (one-way ANOVA, FDR correction; P<0.05) during SEP when compared to Day 10 untreated controls, and the majority of changes occurred between Days 10 and 12 of SEP. To compare transcript levels between SEP rescued and regressing CL, previously banked rhesus GeneChip array data from the mid- to late and very late luteal phase were analyzed with time-matched intervals in SEP. Comparing RMA-normalized transcripts from the natural cycle with those from luteal rescue revealed 7677 transcripts changing in expression pattern >2 fold (one-way ANOVA, FDR correction; P<0.05) between the two groups. Clustering of samples revealed that the SEP samples possessed the most related transcript expression profiles. Regressed CL (days 18-19, around menses) were the most unlike all other CL. The most affected KEGG pathway was Steroid Biosynthesis, and most significantly absent pathways following SEP treatment includes groups of genes whose products promote cell-death. By further comparing the genome-wide changes in luteal gene expression during rescue in SEP, with those in CL during luteolysis in the natural menstrual cycle, it is possible to identify key regulatory pathways promoting fertility. Simulated early pregnancy (SEP) treatment was begun on day 9 as Duffy and Stouffer (1997) by treatment of females with recombinant human chorionic gonadotropin (hCG; NovarelM-bM-^DM-", Ferring Pharmaceuticals Inc. Parsippany, NJ, USA) in increasing dosages (15, 30,45,90,180,360,720,1440, and 2880 IU) twice daily by intramuscular injection. CL were collected by laparotomy on days 10, 12, 15, and 18, representing 1, 3, 6 and 9 days of hCG treatment (n=4 CL/day). Additionally, luteal day 10 untreated CL were collected to serve as baseline controls for SEP CL. All CL were dissected away from luteal tissue, sectioned, and snap-frozen in liquid nitrogen and stored at -80M-BM-0C until RNA and protein isolation by TRIzolM-BM-. extraction (Invitrogen, Carlsbad, CA, USA) according to manufacturerM-bM-^@M-^Ys protocols.

Dataset Information

Cross-linking MS analysis of HIV-2 Vpx-PHD3 protein interaction

Dataset's files

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