Amino acid sequence alignment of the CRPs encoded by furo-, peclu-, tobra- and hordeiviruses. The positions of amino acids are numbered above the alignment. The secondary structure prediction is shown directly above the alignment. Cys and His residues are bold uppercase letters. The leucines of leucine zippers are in bold face. The placement of residues that differ from Pfam are underlined. Vertical bars at the bottom represent where the Pfam family starts and stops. The genus for each virus is indicated on the right of the sequence. Abbreviations and accession numbers for the 33 aligned viruses are used (those displayed are underlined): LyRSV, Lychnis ringspot virus gi_1107721; CWMV-2, Chinese wheat mosaic virus gi_14270345; CWMV, gi_9635448; OGSV Oat golden stripe virus, gi_9635452; SBWMV-NE88 gi_9632360; SBWMV-NE gi_1449160; SBWMV OKl-1, gi_1085914; SBWMV-NY, gi_21630062; SBCMV-Ozz, Soilborne cereal mosaic virus gi_12053756; SBCMV-Fra, gi_9635249; SBCMV-O, gi_6580881; SBCMV-G, gi_6580877; SBCMV-C, gi_6580873; JSBWMV, Japanese soilborne wheat mosaic virus gi_7634693; SCSV, Sorghum chlorotic spot virus gi_21427644; PSLV, Poa semilatent virus gi_321642; BSMV-PV43, Barley stripe mosaic virus gi_19744921; BSMV-RUS, gi_94465; BSMV-JT, gi_808712; BSMV-ND18, gi_1589671; PCV, Peanut clump virus gi_20178597; IPCV, Indian peanut clump virus gi_30018260; TRV-PpK20, Tobacco rattle virus, gi_20522121; TRV-ORY gi_2852339; TRV-Pp085 gi_42733086; TRV-PSG, gi_112699; TRV-PLB, gi_465018; TRV-CAN, gi_1857116; TRV-FL, gi_3033549; TRV-RSTK, gi_6983830; TRV-TCM, gi_112701; PepRSV, Pepper ringspot virus, gi_20178602; PEBV, Pea early browning virus, gi_9632342.