<prompt> Beta-2 transferrin is found in ?BloodUrineTearCSF  <response>: Ans. is d i.e., CSFBeta-2 transferrin is an isoform of transferrin.It is found in cerebrospinal fluid CSF.It is not found in other body fluids blood, mucus, tear, saliva, urine.Therefore, it is a specific marker for CSF and is used for diagnostic of CSF leaks. 