Chain A ( F592 I595 Q596 C597 L598 G599 R600 F603 G604 V605 V606 F607 E608 A609 K610 N617 Y618 A619 I620 K621 R622 I623 V635 M636 E638 V639 K640 A641 L642 A643 K644 L645 E646 I650 V651 R652 Y653 F654 N655 A656 W657 L883 Y884 I885 Q886 M887 Q888 L889 C890 R891 K892 E893 N894 K896 D897 L927 L932 M933 H934 R935 D936 L937 K938 P939 S940 N941 I942 F943 F944 T945 M946 K951 V952 G953 D954 F955 G956 L957 V958 V1004 )