>4ksd_B mol:protein length:124  R2 protein
QVQLQESGGGLVQAGGSLRLSCAASGRTFNSAVMGWFRQAPGKERQFVATIDWSGEYTY
YADSVKGRFTISRDNAKNTVYLQMTSLKPEDTALYYCAARLTLGQFDYWGQGTQVTVSS
HHHHHH