The HUB server was a service related to the paper:
"LinkHub: a Semantic Web system that facilitates cross-database queries and information retrieval in proteomics"
Andrew K Smith, Kei-Hoi Cheung, Kevin Y Yip, Martin Schultz and Mark B Gerstein
BMC Bioinformatics. 2007; 8(Suppl 3): S5. Published online 2007 May 9. doi: 10.1186/1471-2105-8-S3-S5 PMCID: PMC1892102 PMID: 17493288