The National Heart, Lung, and Blood Institute (NHLBI) intends to award a non-competitive purchase order for high-throughput proteomic analysis services using the Olink Explore HT platform. The work supports a longitudinal study on transthyretin (TTR) variants in sickle cell disease severity, requiring quantification of over 5,400 proteins per sample. Services include sample processing, assay execution, quality control, and delivery of normalized datasets. No specific timelines, budget amounts, or performance location are mentioned in the description. Interested parties may submit capability statements to demonstrate their ability to meet the requirement.