The Protein Information Resource (PIR) and the PIR-International Protein Sequence Database. - David G. George; Robert J. Dodson; John S. Garavelli; Daniel H. Haft; Lois T. Hunt; Christopher R. Marzec; Bruce C. Orcutt; Kathryn E. Sidman; Geetha Y. Srinivasarao; Lai-Su L. Yeh; Leslie Arminski; Robert S. Ledley; et al. (Nucleic Acids Res., 1997)

The PIR-International Protein Sequence Database. - Winona C. Barker; John S. Garavelli; Daniel H. Haft; Lois T. Hunt; Christopher R. Marzec; Bruce C. Orcutt; Geetha Y. Srinivasarao; Lai-Su L. Yeh; Robert S. Ledley; Hans-Werner Mewes; Friedhelm Pfeiffer; Akira Tsugita (Nucleic Acids Res., 1998)

PIR-ALN: a database of protein sequence alignments. - Geetha Y. Srinivasarao; Lai-Su L. Yeh; Christopher R. Marzec; Bruce C. Orcutt; Winona C. Barker (Bioinform., 1999)

The PIR-International Protein Sequence Database. - Winona C. Barker; John S. Garavelli; Peter B. McGarvey; Christopher R. Marzec; Bruce C. Orcutt; Geetha Y. Srinivasarao; Lai-Su L. Yeh; Robert S. Ledley; Hans-Werner Mewes; Friedhelm Pfeiffer; Akira Tsugita; Cathy H. Wu (Nucleic Acids Res., 1999)

Database of protein sequence alignments: PIR-ALN. - Geetha Y. Srinivasarao; Lai-Su L. Yeh; Christopher R. Marzec; Bruce C. Orcutt; Winona C. Barker; Friedhelm Pfeiffer (Nucleic Acids Res., 1999)

PIR: a new resource for bioinformatics. - Peter B. McGarvey; Hongzhan Huang; Winona C. Barker; Bruce C. Orcutt; John S. Garavelli; Geetha Y. Srinivasarao; Lai-Su L. Yeh; Chunlin Xiao; Cathy H. Wu (Bioinform., 2000)

The Protein Information Resource (PIR). - Winona C. Barker; John S. Garavelli; Hongzhan Huang; Peter B. McGarvey; Bruce C. Orcutt; Geetha Y. Srinivasarao; Chunlin Xiao; Lai-Su L. Yeh; Robert S. Ledley; Joseph F. Janda; Friedhelm Pfeiffer; Hans-Werner Mewes; et al. (Nucleic Acids Res., 2000)

Protein Information Resource: a community resource for expert annotation of protein data. - Winona C. Barker; John S. Garavelli; Zhenglin Hou; Hongzhan Huang; Robert S. Ledley; Peter B. McGarvey; Hans-Werner Mewes; Bruce C. Orcutt; Friedhelm Pfeiffer; Akira Tsugita; Cholanayakanahalli R. Vinayaka; Chunlin Xiao; et al. (Nucleic Acids Res., 2001)

The Protein Information Resource: an integrated public resource of functional annotation of proteins. - Cathy H. Wu; Hongzhan Huang; Leslie Arminski; Jorge Castro-Alvear; Yongxing Chen; Zhang-Zhi Hu; Robert S. Ledley; Kali C. Lewis; Hans-Werner Mewes; Bruce C. Orcutt; Baris E. Suzek; Akira Tsugita; et al. (Nucleic Acids Res., 2002)

Protein family classification and functional annotation. - Cathy H. Wu; Hongzhan Huang; Lai-Su L. Yeh; Winona C. Barker (Comput. Biol. Chem., 2003)

The Protein Information Resource. - Cathy H. Wu; Lai-Su L. Yeh; Hongzhan Huang; Leslie Arminski; Jorge Castro-Alvear; Yongxing Chen; Zhang-Zhi Hu; Panagiotis Kourtesis; Robert S. Ledley; Baris E. Suzek; Cholanayakanahalli R. Vinayaka; Jian Zhang 051; et al. (Nucleic Acids Res., 2003)

UniProt: the Universal Protein knowledgebase. - Rolf Apweiler; Amos Bairoch; Cathy H. Wu; Winona C. Barker; Brigitte Boeckmann; Serenella Ferro; Elisabeth Gasteiger; Hongzhan Huang; Rodrigo Lopez; Michele Magrane; Maria Jesus Martin; Darren A. Natale; et al. (Nucleic Acids Res., 2004)

PIRSF: family classification system at the Protein Information Resource. - Cathy H. Wu; Anastasia N. Nikolskaya; Hongzhan Huang; Lai-Su L. Yeh; Darren A. Natale; Cholanayakanahalli R. Vinayaka; Zhang-Zhi Hu; Raja Mazumder; Sandeep Kumar; Panagiotis Kourtesis; Robert S. Ledley; Baris E. Suzek; et al. (Nucleic Acids Res., 2004)

The Universal Protein Resource (UniProt). - Amos Bairoch; Rolf Apweiler; Cathy H. Wu; Winona C. Barker; Brigitte Boeckmann; Serenella Ferro; Elisabeth Gasteiger; Hongzhan Huang; Rodrigo Lopez; Michele Magrane; Maria Jesus Martin; Darren A. Natale; et al. (Nucleic Acids Res., 2005)

InterPro in 2017 - beyond protein family and domain annotations. - Robert D. Finn; Teresa K. Attwood; Patricia C. Babbitt; Alex Bateman; Peer Bork; Alan J. Bridge; Hsin-Yu Chang; Zsuzsanna Dosztányi; Sara El-Gebali; Matthew Fraser; Julian Gough; David Haft; et al. (Nucleic Acids Res., 2017)