Knowledge (XXG)

C cap

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to the CO group of residue i-4 (or sometimes residue i-3). Because of this it is sometimes also described as the residue following the helix.
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Richardson, JM; Richardson DC (1988). "Amino acid preferences for specific locations at the ends of alpha-helices".
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Leader, DP; Milner-White EJ (2011). "The structure of the ends of helices in globular proteins".
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Gunasekaran, K; Nagarajam HA (1998). "Stereochemical punctuation marks in protein structure".
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of the helix. More precisely, it is defined as the last residue (i) whose NH group is
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is the corresponding amino acid residue at the other end of the helix
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Certain motifs occur commonly at or around the C cap, notably the
181:"Structures of N-termini of helices in proteins" 8: 136:Presta, LG; Rose GD (1988). "Helix Caps". 253: 204: 77: 7: 27:in a particular position within a 14: 60:niche (protein structural motif) 179:Doig, AJ; MacArthur MW (1997). 1: 279:Journal of Molecular Biology 228:Aurora, R; Rose GD (1998). 23:(C-cap, Ccap) describes an 385: 35:. The C cap residue of an 158:10.1126/science.2837824 107:10.1126/science.3381086 291:10.1006/jmbi.1997.1505 246:10.1002/pro.5560070103 197:10.1002/pro.5560060117 150:1988Sci...240.1632P 144:(4859): 1632–1641. 99:1988Sci...240.1648R 93:(4859): 1648–1652. 334:10.1002/prot.22942 376: 354: 353: 328:(3): 1010–1019. 317: 311: 310: 274: 268: 267: 257: 225: 219: 218: 208: 176: 170: 169: 133: 127: 126: 82: 384: 383: 379: 378: 377: 375: 374: 373: 359: 358: 357: 319: 318: 314: 276: 275: 271: 234:Protein Science 230:"Helix Capping" 227: 226: 222: 185:Protein Science 178: 177: 173: 135: 134: 130: 84: 83: 79: 75: 49:hydrogen-bonded 43:residue at the 17: 12: 11: 5: 382: 380: 372: 371: 361: 360: 356: 355: 312: 285:(5): 917–932. 269: 220: 191:(1): 147–155. 171: 128: 76: 74: 71: 56:Schellman loop 15: 13: 10: 9: 6: 4: 3: 2: 381: 370: 367: 366: 364: 351: 347: 343: 339: 335: 331: 327: 323: 316: 313: 308: 304: 300: 296: 292: 288: 284: 280: 273: 270: 265: 261: 256: 251: 247: 243: 239: 235: 231: 224: 221: 216: 212: 207: 202: 198: 194: 190: 186: 182: 175: 172: 167: 163: 159: 155: 151: 147: 143: 139: 132: 129: 124: 120: 116: 112: 108: 104: 100: 96: 92: 88: 81: 78: 72: 70: 68: 63: 61: 57: 52: 50: 46: 42: 38: 34: 30: 26: 22: 325: 321: 315: 282: 278: 272: 240:(1): 21–38. 237: 233: 223: 188: 184: 174: 141: 137: 131: 90: 86: 80: 64: 53: 39:is the last 20: 18: 369:Amino acids 37:alpha helix 33:polypeptide 73:References 45:C terminus 41:amino acid 25:amino acid 16:Amino acid 19:The term 363:Category 350:22240314 342:21287629 322:Proteins 307:35919397 123:38467101 58:and the 299:9480777 264:9514257 255:2143812 215:9007987 206:2143508 166:2837824 146:Bibcode 138:Science 115:3381086 95:Bibcode 87:Science 29:protein 348:  340:  305:  297:  262:  252:  213:  203:  164:  121:  113:  346:S2CID 303:S2CID 119:S2CID 67:N cap 21:C cap 338:PMID 295:PMID 260:PMID 211:PMID 162:PMID 111:PMID 65:The 330:doi 287:doi 283:275 250:PMC 242:doi 201:PMC 193:doi 154:doi 142:240 103:doi 91:240 31:or 365:: 344:. 336:. 326:79 324:. 301:. 293:. 281:. 258:. 248:. 236:. 232:. 209:. 199:. 187:. 183:. 160:. 152:. 140:. 117:. 109:. 101:. 89:. 62:. 352:. 332:: 309:. 289:: 266:. 244:: 238:7 217:. 195:: 189:6 168:. 156:: 148:: 125:. 105:: 97::

Index

amino acid
protein
polypeptide
alpha helix
amino acid
C terminus
hydrogen-bonded
Schellman loop
niche (protein structural motif)
N cap
Bibcode
1988Sci...240.1648R
doi
10.1126/science.3381086
PMID
3381086
S2CID
38467101
Bibcode
1988Sci...240.1632P
doi
10.1126/science.2837824
PMID
2837824
"Structures of N-termini of helices in proteins"
doi
10.1002/pro.5560060117
PMC
2143508
PMID

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