>tr|R9W3F6|R9W3F6_LAMGL Anti-F4+ETEC bacteria VHH variable region OS=Lama glama QVQLQESGGGLVQAGGSLRLSCAASGLTFDTYAMGWFRQAPGKKREYVAAISWTGISTYY ADIAKGRFTISRDNAKNTLYLQMDSLKPEDTAVYYCAAQKSLNVPAPWDYWGQGTQVTVS S