Sequence alignment between 4li2(B) and UniProt seq Q2MKA7 (RSPO1_HUMAN):

Q2MKA7 (RSPO1_HUMAN): R-spondin-1 from Homo sapiens
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260   
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---
UniProt: MRLGLCVVALVLSWTHLTISSRGIKGKRQRRISAEGSQACAKGCELCSEVNGCLKCSPKLFILLERNDIRQVGVCLPSCPPGYFDARNPDMNKCIKCKIEHCEACFSHNFCTKCKEGLYLHKGRCYPACPEGSSAANGTMECSSPAQCEMSEWSPWGPCSKKQQLCGFRRGSEERTRRVLHAPVGDHAACSDTKETRRCTVRRVPCPEGQKRRKGGQGRRENANRNLARKESKEAGAGSRRRKGQQQQQQQGTVGPLTSAGPA
         .................................................................XXXXX.................................................................................................................................................................................................
PDB seq: ------------------------------------SQACAKGCELCSEVNGCLKCSPKLFILLE-----QVGVCLPSCPPGYFDARNPDMNKCIKCKIEHCEACFSHNFCTKCKEGLYLHKGRCYPACPEGSSAANGTMECSS-----------------------------------------------------------------------------------------------------------------------
                                             ---+---------+---------+-----     ---------+---------+---------+---------+---------+---------+---------+----                                                                                                                       
                                               40        50        60                  80        90       100       110       120       130       140