4wht U 2.22 BS01 peptide u 0 Y33 R57 F58 Y59 D100 Y32 R56 F57 Y58 D99 25473061 413 ~ 422 VKLQESGGGLVQPGRSLKLSCAASGFTFSDSYLAWVRQAPTKGLEWVASITNSGGRFYYRDSVKGRFTISRDNAKSTLYLQMDSLRSEDTATYYCTRMDYWGQGTTVTVSSAETTAPSVYPLAPSMVTLGCLVKGYFPEPVTVTWNSGALSSGVHTFPAVLQSGLYTLTSSVTVPSSTWPSQTVTCNVAHPASSTKVDKKIVPRN