Local refinement of SARS-CoV-2 S-Kappa variant (B.1.617.1) RBD and Angiotensin-converting enzyme 2 (ACE2) ectodomain

Local refinement of SARS-CoV-2 S-Kappa variant (B.1.617.1) RBD and Angiotensin-converting enzyme 2 (ACE2) ectodomain新型冠状病毒（SARS-CoV-2）S蛋白卡帕变异株（B.1.617.1）受体结合域（Receptor Binding Domain，RBD）与血管紧张素转换酶2（Angiotensin-converting enzyme 2，ACE2）胞外域的局部精修