2A1L:
reference: Structure of PITPbeta in Complex with Phosphatidylcholine: Comparison of Structure and Lipid Transfer to Other PITP Isoforms(,)., Vordtriede PB, Doan CN, Tremblay JM, Helmkamp GM Jr, Yoder MD, Biochemistry 2005 Nov 15;44(45):14760-71. PMID: 16274224

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