0.025893 0.008865 0.007265 0.000000 0.027263 0.012311 0.000000 0.000000 0.024364 0.00000 0.00000 0.00000 Williams, P. Chaudhry, Y. Goodfellow, I. Billington, J. Spiller, B. Evans, D.J. Lea, S.M. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 2 110.48 96.55 108.90 38.620 38.770 45.330 C3 H7 N O2 89.093 y ALANINE L-peptide linking C6 H15 N4 O2 1 175.209 y ARGININE L-peptide linking C4 H8 N2 O3 132.118 y ASPARAGINE L-peptide linking C4 H7 N O4 133.103 y ASPARTIC ACID L-peptide linking C3 H7 N O2 S 121.158 y CYSTEINE L-peptide linking C5 H10 N2 O3 146.144 y GLUTAMINE L-peptide linking C5 H9 N O4 147.129 y GLUTAMIC ACID L-peptide linking C2 H5 N O2 75.067 y GLYCINE peptide linking C6 H10 N3 O2 1 156.162 y HISTIDINE L-peptide linking H2 O 18.015 WATER non-polymer C6 H13 N O2 131.173 y ISOLEUCINE L-peptide linking C6 H13 N O2 131.173 y LEUCINE L-peptide linking C6 H15 N2 O2 1 147.195 y LYSINE L-peptide linking C5 H11 N O2 S 149.211 y METHIONINE L-peptide linking C9 H11 N O2 165.189 y PHENYLALANINE L-peptide linking C5 H9 N O2 115.130 y PROLINE L-peptide linking C3 H7 N O3 105.093 y SERINE L-peptide linking C4 H9 N O3 119.119 y THREONINE L-peptide linking C11 H12 N2 O2 204.225 y TRYPTOPHAN L-peptide linking C9 H11 N O3 181.189 y TYROSINE L-peptide linking C5 H11 N O2 117.146 y VALINE L-peptide linking US J.Biol.Chem. JBCHA3 0071 0021-9258 278 10691 10.1074/JBC.M212561200 12499389 Mapping Cd55 Function. The Structure of Two Pathogen-Binding Domains at 1.7 A 2003 DK Acta Crystallogr.,Sect.D ABCRE6 0766 0907-4449 D55 1198 10.1107/S0907444999001638 10329784 Crystallization and Preliminary X-Ray Diffraction Analysis of a Biologically Active Fragment of Cd55 1999 US J.Biol.Chem. JBCHA3 0071 0021-9258 273 30443 10.1074/JBC.273.46.30443 9804811 Determination of the Affinity and Kinetic Constants for the Interaction between the Human Virus Echovirus 11 and its Cellular Receptor, Cd55 1998 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 100.0 1 CCD 2000-11-15 ADSC CCD SINGLE WAVELENGTH M x-ray 1 1.488 1.0 PX14.1 SRS 1.488 SYNCHROTRON SRS BEAMLINE PX14.1 13586.049 COMPLEMENT DECAY-ACCELERATING FACTOR EXTRACELLULAR SCR DOMAINS 3 & 4, RESIDUES 161-285 2 man polymer 18.015 water 176 nat water CD55 ANTIGEN, CD55, DAF no no KSCPNPGEIRNGQIDVPGGILFGATISFSCNTGYKLFGSTSSFCLISGSSVQWSDPLPECREIYCPAPPQIDNGIIQGER DHYGYRQSVTYACNKGFTMIGEHSIYCTVNNDEGEWSGPPPECRG KSCPNPGEIRNGQIDVPGGILFGATISFSCNTGYKLFGSTSSFCLISGSSVQWSDPLPECREIYCPAPPQIDNGIIQGER DHYGYRQSVTYACNKGFTMIGEHSIYCTVNNDEGEWSGPPPECRG P,Q polypeptide(L) n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n HUMAN sample 9606 HOMO SAPIENS 4922 PICHIA PASTORIS 1 2.14 42.52 5.60 pH 5.60 repository Initial release Version format compliance Version format compliance 1 0 2003-03-20 1 1 2011-05-08 1 2 2011-07-13 HUMAN CD55 DOMAINS 3 & 4 HUMAN CD55 DOMAINS 3 & 4 HUMAN CD55 DOMAINS 3 & 4 STRUCTURAL MODEL OF HUMAN DECAY-ACCELERATING FACTOR BOUNDTO ECHOVIRUS 7 FROM CRYO- ELECTRON MICROSCOPY PDBE Y PDBE 2002-06-11 REL HOH water RECOGNIZES C4B AND C3B FRAGMENTS GENERATED DURING C4 AND C3 ACTIVATION. PART OF THE COMPLEMENT CASCADE IN IMMNUNITY. HOH 2001 2 HOH HOH 2001 P HOH 2002 2 HOH HOH 2002 P HOH 2003 2 HOH HOH 2003 P HOH 2004 2 HOH HOH 2004 P HOH 2005 2 HOH HOH 2005 P HOH 2006 2 HOH HOH 2006 P HOH 2007 2 HOH HOH 2007 P HOH 2008 2 HOH HOH 2008 P HOH 2009 2 HOH HOH 2009 P HOH 2010 2 HOH HOH 2010 P HOH 2011 2 HOH HOH 2011 P HOH 2012 2 HOH HOH 2012 P HOH 2013 2 HOH HOH 2013 P HOH 2014 2 HOH HOH 2014 P HOH 2015 2 HOH HOH 2015 P HOH 2016 2 HOH HOH 2016 P HOH 2017 2 HOH HOH 2017 P HOH 2018 2 HOH HOH 2018 P HOH 2019 2 HOH HOH 2019 P HOH 2020 2 HOH HOH 2020 P HOH 2021 2 HOH HOH 2021 P HOH 2022 2 HOH HOH 2022 P HOH 2023 2 HOH HOH 2023 P HOH 2024 2 HOH HOH 2024 P HOH 2025 2 HOH HOH 2025 P HOH 2026 2 HOH HOH 2026 P HOH 2027 2 HOH HOH 2027 P HOH 2028 2 HOH HOH 2028 P HOH 2029 2 HOH HOH 2029 P HOH 2030 2 HOH HOH 2030 P HOH 2031 2 HOH HOH 2031 P HOH 2032 2 HOH HOH 2032 P HOH 2033 2 HOH HOH 2033 P HOH 2034 2 HOH HOH 2034 P HOH 2035 2 HOH HOH 2035 P HOH 2036 2 HOH HOH 2036 P HOH 2037 2 HOH HOH 2037 P HOH 2038 2 HOH HOH 2038 P HOH 2039 2 HOH HOH 2039 P HOH 2040 2 HOH HOH 2040 P HOH 2041 2 HOH HOH 2041 P HOH 2042 2 HOH HOH 2042 P HOH 2043 2 HOH HOH 2043 P HOH 2044 2 HOH HOH 2044 P HOH 2045 2 HOH HOH 2045 P HOH 2046 2 HOH HOH 2046 P HOH 2047 2 HOH HOH 2047 P HOH 2048 2 HOH HOH 2048 P HOH 2049 2 HOH HOH 2049 P HOH 2050 2 HOH HOH 2050 P HOH 2051 2 HOH HOH 2051 P HOH 2052 2 HOH HOH 2052 P HOH 2053 2 HOH HOH 2053 P HOH 2054 2 HOH HOH 2054 P HOH 2055 2 HOH HOH 2055 P HOH 2056 2 HOH HOH 2056 P HOH 2057 2 HOH HOH 2057 P HOH 2058 2 HOH HOH 2058 P HOH 2059 2 HOH HOH 2059 P HOH 2060 2 HOH HOH 2060 P HOH 2061 2 HOH HOH 2061 P HOH 2062 2 HOH HOH 2062 P HOH 2063 2 HOH HOH 2063 P HOH 2064 2 HOH HOH 2064 P HOH 2065 2 HOH HOH 2065 P HOH 2066 2 HOH HOH 2066 P HOH 2067 2 HOH HOH 2067 P HOH 2068 2 HOH HOH 2068 P HOH 2069 2 HOH HOH 2069 P HOH 2070 2 HOH HOH 2070 P HOH 2071 2 HOH HOH 2071 P HOH 2072 2 HOH HOH 2072 P HOH 2073 2 HOH HOH 2073 P HOH 2074 2 HOH HOH 2074 P HOH 2075 2 HOH HOH 2075 P HOH 2076 2 HOH HOH 2076 P HOH 2077 2 HOH HOH 2077 P HOH 2078 2 HOH HOH 2078 P HOH 2079 2 HOH HOH 2079 P HOH 2080 2 HOH HOH 2080 P HOH 2081 2 HOH HOH 2081 P HOH 2082 2 HOH HOH 2082 P HOH 2083 2 HOH HOH 2083 P HOH 2084 2 HOH HOH 2084 P HOH 2085 2 HOH HOH 2085 P HOH 2086 2 HOH HOH 2086 P HOH 2087 2 HOH HOH 2087 P HOH 2088 2 HOH HOH 2088 P HOH 2089 2 HOH HOH 2089 P HOH 2090 2 HOH HOH 2090 P HOH 2091 2 HOH HOH 2091 P HOH 2092 2 HOH HOH 2092 P HOH 2093 2 HOH HOH 2093 P HOH 2094 2 HOH HOH 2094 P HOH 2095 2 HOH HOH 2095 P HOH 2096 2 HOH HOH 2096 P HOH 2001 2 HOH HOH 2001 Q HOH 2002 2 HOH HOH 2002 Q HOH 2003 2 HOH HOH 2003 Q HOH 2004 2 HOH HOH 2004 Q HOH 2005 2 HOH HOH 2005 Q HOH 2006 2 HOH HOH 2006 Q HOH 2007 2 HOH HOH 2007 Q HOH 2008 2 HOH HOH 2008 Q HOH 2009 2 HOH HOH 2009 Q HOH 2010 2 HOH HOH 2010 Q HOH 2011 2 HOH HOH 2011 Q HOH 2012 2 HOH HOH 2012 Q HOH 2013 2 HOH HOH 2013 Q HOH 2014 2 HOH HOH 2014 Q HOH 2015 2 HOH HOH 2015 Q HOH 2016 2 HOH HOH 2016 Q HOH 2017 2 HOH HOH 2017 Q HOH 2018 2 HOH HOH 2018 Q HOH 2019 2 HOH HOH 2019 Q HOH 2020 2 HOH HOH 2020 Q HOH 2021 2 HOH HOH 2021 Q HOH 2022 2 HOH HOH 2022 Q HOH 2023 2 HOH HOH 2023 Q HOH 2024 2 HOH HOH 2024 Q HOH 2025 2 HOH HOH 2025 Q HOH 2026 2 HOH HOH 2026 Q HOH 2027 2 HOH HOH 2027 Q HOH 2028 2 HOH HOH 2028 Q HOH 2029 2 HOH HOH 2029 Q HOH 2030 2 HOH HOH 2030 Q HOH 2031 2 HOH HOH 2031 Q HOH 2032 2 HOH HOH 2032 Q HOH 2033 2 HOH HOH 2033 Q HOH 2034 2 HOH HOH 2034 Q HOH 2035 2 HOH HOH 2035 Q HOH 2036 2 HOH HOH 2036 Q HOH 2037 2 HOH HOH 2037 Q HOH 2038 2 HOH HOH 2038 Q HOH 2039 2 HOH HOH 2039 Q HOH 2040 2 HOH HOH 2040 Q HOH 2041 2 HOH HOH 2041 Q HOH 2042 2 HOH HOH 2042 Q HOH 2043 2 HOH HOH 2043 Q HOH 2044 2 HOH HOH 2044 Q HOH 2045 2 HOH HOH 2045 Q HOH 2046 2 HOH HOH 2046 Q HOH 2047 2 HOH HOH 2047 Q HOH 2048 2 HOH HOH 2048 Q HOH 2049 2 HOH HOH 2049 Q HOH 2050 2 HOH HOH 2050 Q HOH 2051 2 HOH HOH 2051 Q HOH 2052 2 HOH HOH 2052 Q HOH 2053 2 HOH HOH 2053 Q HOH 2054 2 HOH HOH 2054 Q HOH 2055 2 HOH HOH 2055 Q HOH 2056 2 HOH HOH 2056 Q HOH 2057 2 HOH HOH 2057 Q HOH 2058 2 HOH HOH 2058 Q HOH 2059 2 HOH HOH 2059 Q HOH 2060 2 HOH HOH 2060 Q HOH 2061 2 HOH HOH 2061 Q HOH 2062 2 HOH HOH 2062 Q HOH 2063 2 HOH HOH 2063 Q HOH 2064 2 HOH HOH 2064 Q HOH 2065 2 HOH HOH 2065 Q HOH 2066 2 HOH HOH 2066 Q HOH 2067 2 HOH HOH 2067 Q HOH 2068 2 HOH HOH 2068 Q HOH 2069 2 HOH HOH 2069 Q HOH 2070 2 HOH HOH 2070 Q HOH 2071 2 HOH HOH 2071 Q HOH 2072 2 HOH HOH 2072 Q HOH 2073 2 HOH HOH 2073 Q HOH 2074 2 HOH HOH 2074 Q HOH 2075 2 HOH HOH 2075 Q HOH 2076 2 HOH HOH 2076 Q HOH 2077 2 HOH HOH 2077 Q HOH 2078 2 HOH HOH 2078 Q HOH 2079 2 HOH HOH 2079 Q HOH 2080 2 HOH HOH 2080 Q LYS 5 n 1 LYS 5 P SER 6 n 2 SER 6 P CYS 7 n 3 CYS 7 P PRO 8 n 4 PRO 8 P ASN 9 n 5 ASN 9 P PRO 10 n 6 PRO 10 P GLY 11 n 7 GLY 11 P GLU 12 n 8 GLU 12 P ILE 13 n 9 ILE 13 P ARG 14 n 10 ARG 14 P ASN 15 n 11 ASN 15 P GLY 16 n 12 GLY 16 P GLN 17 n 13 GLN 17 P ILE 18 n 14 ILE 18 P ASP 19 n 15 ASP 19 P VAL 20 n 16 VAL 20 P PRO 21 n 17 PRO 21 P GLY 22 n 18 GLY 22 P GLY 23 n 19 GLY 23 P ILE 24 n 20 ILE 24 P LEU 25 n 21 LEU 25 P PHE 26 n 22 PHE 26 P GLY 27 n 23 GLY 27 P ALA 28 n 24 ALA 28 P THR 29 n 25 THR 29 P ILE 30 n 26 ILE 30 P SER 31 n 27 SER 31 P PHE 32 n 28 PHE 32 P SER 33 n 29 SER 33 P CYS 34 n 30 CYS 34 P ASN 35 n 31 ASN 35 P THR 36 n 32 THR 36 P GLY 37 n 33 GLY 37 P TYR 38 n 34 TYR 38 P LYS 39 n 35 LYS 39 P LEU 40 n 36 LEU 40 P PHE 41 n 37 PHE 41 P GLY 42 n 38 GLY 42 P SER 43 n 39 SER 43 P THR 44 n 40 THR 44 P SER 45 n 41 SER 45 P SER 46 n 42 SER 46 P PHE 47 n 43 PHE 47 P CYS 48 n 44 CYS 48 P LEU 49 n 45 LEU 49 P ILE 50 n 46 ILE 50 P SER 51 n 47 SER 51 P GLY 52 n 48 GLY 52 P SER 53 n 49 SER 53 P SER 54 n 50 SER 54 P VAL 55 n 51 VAL 55 P GLN 56 n 52 GLN 56 P TRP 57 n 53 TRP 57 P SER 58 n 54 SER 58 P ASP 59 n 55 ASP 59 P PRO 60 n 56 PRO 60 P LEU 61 n 57 LEU 61 P PRO 62 n 58 PRO 62 P GLU 63 n 59 GLU 63 P CYS 64 n 60 CYS 64 P ARG 65 n 61 ARG 65 P GLU 66 n 62 GLU 66 P ILE 67 n 63 ILE 67 P TYR 68 n 64 TYR 68 P CYS 69 n 65 CYS 69 P PRO 70 n 66 PRO 70 P ALA 71 n 67 ALA 71 P PRO 72 n 68 PRO 72 P PRO 73 n 69 PRO 73 P GLN 74 n 70 GLN 74 P ILE 75 n 71 ILE 75 P ASP 76 n 72 ASP 76 P ASN 77 n 73 ASN 77 P GLY 78 n 74 GLY 78 P ILE 79 n 75 ILE 79 P ILE 80 n 76 ILE 80 P GLN 81 n 77 GLN 81 P GLY 82 n 78 GLY 82 P GLU 83 n 79 GLU 83 P ARG 84 n 80 ARG 84 P ASP 85 n 81 ASP 85 P HIS 86 n 82 HIS 86 P TYR 87 n 83 TYR 87 P GLY 88 n 84 GLY 88 P TYR 89 n 85 TYR 89 P ARG 90 n 86 ARG 90 P GLN 91 n 87 GLN 91 P SER 92 n 88 SER 92 P VAL 93 n 89 VAL 93 P THR 94 n 90 THR 94 P TYR 95 n 91 TYR 95 P ALA 96 n 92 ALA 96 P CYS 97 n 93 CYS 97 P ASN 98 n 94 ASN 98 P LYS 99 n 95 LYS 99 P GLY 100 n 96 GLY 100 P PHE 101 n 97 PHE 101 P THR 102 n 98 THR 102 P MET 103 n 99 MET 103 P ILE 104 n 100 ILE 104 P GLY 105 n 101 GLY 105 P GLU 106 n 102 GLU 106 P HIS 107 n 103 HIS 107 P SER 108 n 104 SER 108 P ILE 109 n 105 ILE 109 P TYR 110 n 106 TYR 110 P CYS 111 n 107 CYS 111 P THR 112 n 108 THR 112 P VAL 113 n 109 VAL 113 P ASN 114 n 110 ASN 114 P ASN 115 n 111 ASN 115 P ASP 116 n 112 ASP 116 P GLU 117 n 113 GLU 117 P GLY 118 n 114 GLY 118 P GLU 119 n 115 GLU 119 P TRP 120 n 116 TRP 120 P SER 121 n 117 SER 121 P GLY 122 n 118 GLY 122 P PRO 123 n 119 PRO 123 P PRO 124 n 120 PRO 124 P PRO 125 n 121 PRO 125 P GLU 126 n 122 GLU 126 P CYS 127 n 123 CYS 127 P ARG 128 n 124 ARG 128 P GLY 129 n 125 GLY 129 P LYS 5 n 1 LYS 5 Q SER 6 n 2 SER 6 Q CYS 7 n 3 CYS 7 Q PRO 8 n 4 PRO 8 Q ASN 9 n 5 ASN 9 Q PRO 10 n 6 PRO 10 Q GLY 11 n 7 GLY 11 Q GLU 12 n 8 GLU 12 Q ILE 13 n 9 ILE 13 Q ARG 14 n 10 ARG 14 Q ASN 15 n 11 ASN 15 Q GLY 16 n 12 GLY 16 Q GLN 17 n 13 GLN 17 Q ILE 18 n 14 ILE 18 Q ASP 19 n 15 ASP 19 Q VAL 20 n 16 VAL 20 Q PRO 21 n 17 PRO 21 Q GLY 22 n 18 GLY 22 Q GLY 23 n 19 GLY 23 Q ILE 24 n 20 ILE 24 Q LEU 25 n 21 LEU 25 Q PHE 26 n 22 PHE 26 Q GLY 27 n 23 GLY 27 Q ALA 28 n 24 ALA 28 Q THR 29 n 25 THR 29 Q ILE 30 n 26 ILE 30 Q SER 31 n 27 SER 31 Q PHE 32 n 28 PHE 32 Q SER 33 n 29 SER 33 Q CYS 34 n 30 CYS 34 Q ASN 35 n 31 ASN 35 Q THR 36 n 32 THR 36 Q GLY 37 n 33 GLY 37 Q TYR 38 n 34 TYR 38 Q LYS 39 n 35 LYS 39 Q LEU 40 n 36 LEU 40 Q PHE 41 n 37 PHE 41 Q GLY 42 n 38 GLY 42 Q SER 43 n 39 SER 43 Q THR 44 n 40 THR 44 Q SER 45 n 41 SER 45 Q SER 46 n 42 SER 46 Q PHE 47 n 43 PHE 47 Q CYS 48 n 44 CYS 48 Q LEU 49 n 45 LEU 49 Q ILE 50 n 46 ILE 50 Q SER 51 n 47 SER 51 Q GLY 52 n 48 GLY 52 Q SER 53 n 49 SER 53 Q SER 54 n 50 SER 54 Q VAL 55 n 51 VAL 55 Q GLN 56 n 52 GLN 56 Q TRP 57 n 53 TRP 57 Q SER 58 n 54 SER 58 Q ASP 59 n 55 ASP 59 Q PRO 60 n 56 PRO 60 Q LEU 61 n 57 LEU 61 Q PRO 62 n 58 PRO 62 Q GLU 63 n 59 GLU 63 Q CYS 64 n 60 CYS 64 Q ARG 65 n 61 ARG 65 Q GLU 66 n 62 GLU 66 Q ILE 67 n 63 ILE 67 Q TYR 68 n 64 TYR 68 Q CYS 69 n 65 CYS 69 Q PRO 70 n 66 PRO 70 Q ALA 71 n 67 ALA 71 Q PRO 72 n 68 PRO 72 Q PRO 73 n 69 PRO 73 Q GLN 74 n 70 GLN 74 Q ILE 75 n 71 ILE 75 Q ASP 76 n 72 ASP 76 Q ASN 77 n 73 ASN 77 Q GLY 78 n 74 GLY 78 Q ILE 79 n 75 ILE 79 Q ILE 80 n 76 ILE 80 Q GLN 81 n 77 GLN 81 Q GLY 82 n 78 GLY 82 Q GLU 83 n 79 GLU 83 Q ARG 84 n 80 ARG 84 Q ASP 85 n 81 ASP 85 Q HIS 86 n 82 HIS 86 Q TYR 87 n 83 TYR 87 Q GLY 88 n 84 GLY 88 Q TYR 89 n 85 TYR 89 Q ARG 90 n 86 ARG 90 Q GLN 91 n 87 GLN 91 Q SER 92 n 88 SER 92 Q VAL 93 n 89 VAL 93 Q THR 94 n 90 THR 94 Q TYR 95 n 91 TYR 95 Q ALA 96 n 92 ALA 96 Q CYS 97 n 93 CYS 97 Q ASN 98 n 94 ASN 98 Q LYS 99 n 95 LYS 99 Q GLY 100 n 96 GLY 100 Q PHE 101 n 97 PHE 101 Q THR 102 n 98 THR 102 Q MET 103 n 99 MET 103 Q ILE 104 n 100 ILE 104 Q GLY 105 n 101 GLY 105 Q GLU 106 n 102 GLU 106 Q HIS 107 n 103 HIS 107 Q SER 108 n 104 SER 108 Q ILE 109 n 105 ILE 109 Q TYR 110 n 106 TYR 110 Q CYS 111 n 107 CYS 111 Q THR 112 n 108 THR 112 Q VAL 113 n 109 VAL 113 Q ASN 114 n 110 ASN 114 Q ASN 115 n 111 ASN 115 Q ASP 116 n 112 ASP 116 Q GLU 117 n 113 GLU 117 Q GLY 118 n 114 GLY 118 Q GLU 119 n 115 GLU 119 Q TRP 120 n 116 TRP 120 Q SER 121 n 117 SER 121 Q GLY 122 n 118 GLY 122 Q PRO 123 n 119 PRO 123 Q PRO 124 n 120 PRO 124 Q PRO 125 n 121 PRO 125 Q GLU 126 n 122 GLU 126 Q CYS 127 n 123 CYS 127 Q ARG 128 n 124 ARG 128 Q GLY 129 n 125 GLY 129 Q author_and_software_defined_assembly PQS 1 monomeric author_and_software_defined_assembly PQS 1 monomeric 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 1_555 x,y,z identity operation 0.0000000000 0.0000000000 0.0000000000 P N ASP 19 A N ASP 15 P O SER 31 A O SER 27 P N ILE 30 A N ILE 26 P O SER 46 A O SER 42 P N SER 51 A N SER 47 P O SER 54 A O SER 50 P N PHE 41 A N PHE 37 P O GLU 63 A O GLU 59 P N ILE 79 A N ILE 75 P O ALA 96 A O ALA 92 P N VAL 93 A N VAL 89 P O ILE 109 A O ILE 105 P N ASN 114 A N ASN 110 P O GLU 117 A O GLU 113 P N ILE 104 A N ILE 100 P O GLU 126 A O GLU 122 Q N ASP 19 B N ASP 15 Q O SER 31 B O SER 27 Q N ILE 30 B N ILE 26 Q O SER 46 B O SER 42 Q N SER 51 B N SER 47 Q O SER 54 B O SER 50 Q N PHE 41 B N PHE 37 Q O GLU 63 B O GLU 59 Q N ILE 79 B N ILE 75 Q O ALA 96 B O ALA 92 Q N VAL 93 B N VAL 89 Q O ILE 109 B O ILE 105 Q N ASN 114 B N ASN 110 Q O GLU 117 B O GLU 113 Q N ILE 104 B N ILE 100 Q O GLU 126 B O GLU 122 1 Q Q NE2 O GLN HOH 81 2053 2.04 1 3.43 0.50 120.30 123.73 Q Q Q NE CZ NH1 ARG ARG ARG 84 84 84 N 1 -3.38 0.50 120.30 116.92 Q Q Q NE CZ NH2 ARG ARG ARG 84 84 84 N 1 P SER 53 159.82 32.74 1 P ASP 116 59.88 17.57 1 Q ARG 90 82.02 -9.67 1 Q SER 121 -54.29 -141.66 PROTEIN_REP.PARAM PROTEIN.TOP WATER_REP.PARAM WATER.TOP 30.0 8.5 -2.2 -7.4 -4.1 -7.8 -4.3 0.234 0.191 0.191 1.7 20.0 44162 5.0 100.0 RANDOM 1 THROUGHOUT 0.0 MIRAS 1.7 20.0 176 2078 0 0 1902 0.014 1.7 1.700 20.000 1H03 44162 0.06200 1 10.4000 15.500 100.0 0.35000 1.70 1.75 1.500 1 92.0 refinement CNS data reduction MOSFLM data scaling SCALA phasing SHARP COMPLEMENT DECAY-ACCELERATING FACTOR Human CD55 domains 3 & 4 1 N N 1 N N 2 N N 2 N N disulf 2.066 P CYS 7 A SG CYS 3 1_555 P CYS 48 A SG CYS 44 1_555 disulf 2.055 P CYS 34 A SG CYS 30 1_555 P CYS 64 A SG CYS 60 1_555 disulf 2.047 P CYS 69 A SG CYS 65 1_555 P CYS 111 A SG CYS 107 1_555 disulf 2.036 P CYS 97 A SG CYS 93 1_555 P CYS 127 A SG CYS 123 1_555 disulf 2.031 Q CYS 7 B SG CYS 3 1_555 Q CYS 48 B SG CYS 44 1_555 disulf 2.010 Q CYS 34 B SG CYS 30 1_555 Q CYS 64 B SG CYS 60 1_555 disulf 1.999 Q CYS 69 B SG CYS 65 1_555 Q CYS 111 B SG CYS 107 1_555 disulf 2.009 Q CYS 97 B SG CYS 93 1_555 Q CYS 127 B SG CYS 123 1_555 IMMUNE SYSTEM PROTEIN IMMUNE SYSTEM PROTEIN, COMPLEMENT DECAY ACCELERATING FACTOR, ENTEROVIRAL RECEPTOR, BACTERIAL RECEPTOR, LIGAND FOR CD97, COMPLEMENT PATHWAY, ALTERNATIVE SPLICING, GPI-ANCHOR DAF_HUMAN UNP 1 P08174 161 285 1H03 5 129 P08174 P 1 1 125 161 285 1H03 5 129 P08174 Q 1 1 125 4 2 4 2 4 2 4 2 anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel P GLY 16 A GLY 12 P ASP 19 A ASP 15 P THR 29 A THR 25 P CYS 34 A CYS 30 P SER 45 A SER 41 P SER 51 A SER 47 P SER 54 A SER 50 P TRP 57 A TRP 53 P TYR 38 A TYR 34 P PHE 41 A PHE 37 P GLU 63 A GLU 59 P GLU 66 A GLU 62 P GLY 78 A GLY 74 P ILE 80 A ILE 76 P SER 92 A SER 88 P CYS 97 A CYS 93 P SER 108 A SER 104 P ASN 114 A ASN 110 P GLU 117 A GLU 113 P TRP 120 A TRP 116 P THR 102 A THR 98 P ILE 104 A ILE 100 P GLU 126 A GLU 122 P ARG 128 A ARG 124 Q GLY 16 B GLY 12 Q ASP 19 B ASP 15 Q THR 29 B THR 25 Q CYS 34 B CYS 30 Q SER 45 B SER 41 Q SER 51 B SER 47 Q SER 54 B SER 50 Q TRP 57 B TRP 53 Q TYR 38 B TYR 34 Q PHE 41 B PHE 37 Q GLU 63 B GLU 59 Q GLU 66 B GLU 62 Q GLY 78 B GLY 74 Q ILE 80 B ILE 76 Q SER 92 B SER 88 Q CYS 97 B CYS 93 Q SER 108 B SER 104 Q ASN 114 B ASN 110 Q GLU 117 B GLU 113 Q TRP 120 B TRP 116 Q THR 102 B THR 98 Q ILE 104 B ILE 100 Q GLU 126 B GLU 122 Q ARG 128 B ARG 124 1 P 1