Agnello V, Goñi F, Barnes J L, de la Vega M T, Frangione B
J Exp Med. 1987 Jan 1;165(1):263-7. doi: 10.1084/jem.165.1.263.
The amino acid sequence of the L-CDR2 (complementarity-determining region) of Bla mRF (monoclonal rheumatoid factor) is identical to that of the Wa mRFs. The PSL2-CRI (crossreactive idiotype), as determined by anti-PSL2, which has been shown to be present on all Wa mRFs, is also present on the Bla mRF and other monoclonal autoantibodies. PSL2-CRI is, therefore, not unique to Wa mRFs and may be present on most IgM kappa monoclonal autoantibodies. Whether PSL2-CRI is a crossidiotype (XId) that is selectively present on autoantibodies or represents an allotypic marker for a V kappa III gene is undetermined.
Bla mRF(单克隆类风湿因子)的L-CDR2(互补决定区)氨基酸序列与Wa mRFs的相同。由抗PSL2确定的PSL2-CRI(交叉反应独特型)已证存在于所有Wa mRFs上,也存在于Bla mRF和其他单克隆自身抗体上。因此,PSL2-CRI并非Wa mRFs所特有,可能存在于大多数IgM κ单克隆自身抗体上。PSL2-CRI是选择性存在于自身抗体上的交叉独特型(XId)还是代表V κ III基因的同种异型标记尚不确定。