High Quality Content by WIKIPEDIA articles! Vesicle transport through interaction with t-SNAREs homolog 1B is a protein that in humans is encoded by the VTI1B gene.Proteins (also known as polypeptides) are organic compounds made of amino acids arranged in a linear chain and folded into a globular form. The amino acids in a polymer are joined together by the peptide bonds between the carboxyl and amino groups of adjacent amino acid residues.