>5us3_A mol:protein length:29 Heterogeneous-Backbone Variant of the Sp1-3 Zinc Finger: N-Me-Ala3, N-Me-Arg10, beta-3-Asp15, beta-3-Lys19, beta3-Lys22, beta-3-Gln25 KYACPECPKRFLRSDHLSKHIKTHXNKKX