Protein Information Resource, Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center Washington, DC 20007, USA.|Protein Information Resource, Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center Washington, DC 20007, USA.|Protein Information Resource, Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center Washington, DC 20007, USA.|Protein Information Resource, Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center Washington, DC 20007, USA.|Protein Information Resource, Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center Washington, DC 20007, USA.|Protein Information Resource, Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center Washington, DC 20007, USA.|Protein Information Resource, Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center Washington, DC 20007, USA.|Protein Information Resource, Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center Washington, DC 20007, USA.