HEADER IMMUNE SYSTEM 31-DEC-69 2GSX TITLE Complement Receptor Type 2 COMPND MOL_ID: 1; COMPND 2 MOLECULE: Complement receptor type 2; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; EXPDTA SOLUTION SCATTERING DBREF 2GSX A 1 951 UNP P20023 CR2_HUMAN 21 971 SEQRES 1 A 55 ALA ALA CYS GLU ALA THR GLY ARG GLN LEU LEU THR LYS SEQRES 2 A 55 PRO GLN HIS GLN PHE VAL ARG PRO ASP VAL ASN SER SER SEQRES 3 A 55 CYS GLY GLU GLY TYR LYS LEU SER GLY SER VAL TYR GLN SEQRES 4 A 55 GLU CYS GLN GLY THR ILE PRO TRP PHE MET GLU ILE ARG SEQRES 5 A 55 LEU CYS LYS ATOM 1 CA ALA A 449 -26.207 -44.524-109.930 1.00 0.00 ATOM 2 CA ALA A 450 -23.817 -47.188-108.508 1.00 0.00 ATOM 3 CA CYS A 451 -20.326 -48.709-109.552 1.00 0.00 ATOM 4 CA GLU A 452 -17.810 -51.450-108.397 1.00 0.00 ATOM 5 CA ALA A 453 -14.826 -50.667-106.030 1.00 0.00 ATOM 6 CA THR A 454 -11.455 -49.565-107.660 1.00 0.00 ATOM 7 CA GLY A 455 -7.926 -50.915-107.013 1.00 0.00 ATOM 8 CA ARG A 456 -5.690 -48.043-105.701 1.00 0.00 ATOM 9 CA GLN A 457 -2.667 -47.337-108.034 1.00 0.00 ATOM 10 CA LEU A 458 0.723 -47.077-106.141 1.00 0.00 ATOM 11 CA LEU A 459 1.085 -43.252-105.487 1.00 0.00 ATOM 12 CA THR A 460 -2.396 -41.838-106.608 1.00 0.00 ATOM 13 CA LYS A 461 -5.554 -40.320-104.857 1.00 0.00 ATOM 14 CA PRO A 462 -8.944 -42.333-105.324 1.00 0.00 ATOM 15 CA GLN A 463 -12.428 -40.744-104.576 1.00 0.00 ATOM 16 CA HIS A 464 -15.373 -43.248-104.069 1.00 0.00 ATOM 17 CA GLN A 465 -18.978 -42.139-103.662 1.00 0.00 ATOM 18 CA PHE A 466 -20.199 -44.970-105.943 1.00 0.00 ATOM 19 CA VAL A 467 -22.370 -42.970-108.598 1.00 0.00 ATOM 20 CA ARG A 468 -21.700 -39.210-109.606 1.00 0.00 ATOM 21 CA PRO A 469 -17.933 -37.927-108.952 1.00 0.00 ATOM 22 CA ASP A 470 -15.296 -36.998-111.632 1.00 0.00 ATOM 23 CA VAL A 471 -12.191 -39.149-110.611 1.00 0.00 ATOM 24 CA ASN A 472 -9.118 -37.234-112.025 1.00 0.00 ATOM 25 CA SER A 473 -6.037 -39.623-111.619 1.00 0.00 ATOM 26 CA SER A 474 -3.295 -37.430-109.964 1.00 0.00 ATOM 27 CA CYS A 475 0.082 -39.280-109.458 1.00 0.00 ATOM 28 CA GLY A 476 2.653 -38.371-106.666 1.00 0.00 ATOM 29 CA GLU A 477 5.193 -35.762-107.986 1.00 0.00 ATOM 30 CA GLY A 478 7.996 -37.693-109.759 1.00 0.00 ATOM 31 CA TYR A 479 5.563 -40.400-111.154 1.00 0.00 ATOM 32 CA LYS A 480 3.496 -40.122-114.458 1.00 0.00 ATOM 33 CA LEU A 481 -0.038 -41.504-115.446 1.00 0.00 ATOM 34 CA SER A 482 -0.272 -44.364-118.118 1.00 0.00 ATOM 35 CA GLY A 483 -3.896 -44.446-119.560 1.00 0.00 ATOM 36 CA SER A 484 -6.562 -41.671-119.111 1.00 0.00 ATOM 37 CA VAL A 485 -6.882 -38.255-117.230 1.00 0.00 ATOM 38 CA TYR A 486 -10.606 -38.309-115.955 1.00 0.00 ATOM 39 CA GLN A 487 -13.571 -40.796-115.447 1.00 0.00 ATOM 40 CA GLU A 488 -17.229 -40.275-114.227 1.00 0.00 ATOM 41 CA CYS A 489 -19.416 -43.220-112.957 1.00 0.00 ATOM 42 CA GLN A 490 -23.031 -43.421-114.361 1.00 0.00 ATOM 43 CA GLY A 491 -26.389 -45.361-114.426 1.00 0.00 ATOM 44 CA THR A 492 -25.275 -46.974-117.789 1.00 0.00 ATOM 45 CA ILE A 493 -21.677 -48.634-117.781 1.00 0.00 ATOM 46 CA PRO A 494 -20.021 -48.625-114.161 1.00 0.00 ATOM 47 CA TRP A 495 -16.714 -46.654-114.747 1.00 0.00 ATOM 48 CA PHE A 496 -16.238 -44.685-118.068 1.00 0.00 ATOM 49 CA MET A 497 -12.632 -46.085-118.766 1.00 0.00 ATOM 50 CA GLU A 498 -9.871 -48.576-117.536 1.00 0.00 ATOM 51 CA ILE A 499 -7.644 -47.981-114.364 1.00 0.00 ATOM 52 CA ARG A 500 -4.118 -46.554-115.078 1.00 0.00 ATOM 53 CA LEU A 501 -0.540 -47.070-113.593 1.00 0.00 ATOM 54 CA CYS A 502 1.653 -44.310-111.933 1.00 0.00 ATOM 55 CA LYS A 503 5.197 -45.639-113.453 1.00 0.00 TER