Illustration of annotated genes identified in FB-HSPC–subtracted library. Blast analysis (http://www.ncbi.nlm.nih.gov/genome/seq/page.cgi?F=HsBlast.html&&ORG=Hs) was used to identify the closest transcript in the gene bank, and SMART program (http://www.ncbi.nlm.nih.gov/BLAST) identified the presence of domain(s) in the amino acid sequences of the selected transcripts. Gene Ontology Consortium (http://www.Geneontology.org/) and literature search were used to annotate selected transcripts differentially expressed in FB-HSPCs into 16 groups shown in a pie diagram. CCR indicates cell cycle regulator; TF/DNB, transcription factor/DNA binding protein; RNB, RNA binding; PP, protein processing; PS, protein synthesis; ECM, extracellular membrane; CYT, cytoskeletal; MET, metabolic genes; PIP, proteoglycan integral to plasma membrane; TRA, transports; ST, signal transduction; PF, protein folding; UBQ, ubiquitin pathway; UN EST, uncharacterized; DUB, deubiquitination; and AP, apoptosis pathway.