Analysis of interatomic Contacts of Structural Units in PDB entry:
2XCR

Contacts of Structural Units (CSU) are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332).
This page provides analyses of contacts formed by:

chains
helices
sheets
residues

For analysis of ligand-protein contacts, use:

LPC software

3D structure can be seen in additional window with STING software for 2XCR entry

There are 2 chains in PDB entry 2XCR (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
B	LYS 417	GLY 1491
D	GLY 416	LYS 1323

There are113 helices in PDB entry 2XCR. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	B	438	447	Right-handed alpha
Helix 2	2	B	468	474	Right-handed alpha
Helix 3	3	B	475	486	Right-handed alpha
Helix 4	4	B	494	498	Right-handed 310
Helix 5	5	B	510	528	Right-handed alpha
Helix 6	6	B	528	534	Right-handed alpha
Helix 7	7	B	558	566	Right-handed alpha
Helix 8	8	B	610	622	Right-handed alpha
Helix 9	9	B	625	637	Right-handed alpha
Helix 10	10	B	1014	1032	Right-handed alpha
Helix 11	11	B	1043	1057	Right-handed alpha
Helix 12	12	B	1067	1076	Right-handed alpha
Helix 13	13	B	1082	1093	Right-handed alpha
Helix 14	14	B	1130	1133	Right-handed 310
Helix 15	15	B	1165	1171	Right-handed alpha
Helix 16	16	B	1187	1201	Right-handed alpha
Helix 17	17	B	1205	1210	Right-handed alpha
Helix 18	18	B	1227	1236	Right-handed alpha
Helix 19	19	B	1269	1283	Right-handed alpha
Helix 20	20	B	1313	1325	Right-handed alpha
Helix 21	21	B	1347	1390	Right-handed alpha
Helix 22	22	B	1390	1401	Right-handed alpha
Helix 23	23	B	1408	1414	Right-handed alpha
Helix 24	24	B	1418	1421	Right-handed 310
Helix 25	25	B	1422	1427	Right-handed alpha
Helix 26	26	B	1430	1434	Right-handed 310
Helix 27	27	B	1437	1446	Right-handed alpha
Helix 28	28	B	1447	1460	Right-handed alpha
Helix 29	29	B	1461	1481	Right-handed alpha
Helix 30	30	D	425	428	Right-handed 310
Helix 31	31	D	468	473	Right-handed alpha
Helix 32	32	D	475	486	Right-handed alpha
Helix 33	33	D	489	493	Right-handed 310
Helix 34	34	D	511	528	Right-handed alpha
Helix 35	35	D	528	534	Right-handed alpha
Helix 36	36	D	558	567	Right-handed alpha
Helix 37	37	D	588	597	Right-handed alpha
Helix 38	38	D	610	622	Right-handed alpha
Helix 39	39	D	625	636	Right-handed alpha
Helix 40	40	D	1014	1032	Right-handed alpha
Helix 41	41	D	1043	1056	Right-handed alpha
Helix 42	42	D	1067	1078	Right-handed alpha
Helix 43	43	D	1082	1093	Right-handed alpha
Helix 44	44	D	1131	1136	Right-handed alpha
Helix 45	45	D	1165	1171	Right-handed alpha
Helix 46	46	D	1187	1201	Right-handed alpha
Helix 47	47	D	1205	1210	Right-handed alpha
Helix 48	48	D	1229	1236	Right-handed alpha
Helix 49	49	D	1269	1283	Right-handed alpha
Helix 50	50	D	1313	1325	Right-handed alpha
Helix 51	51	D	1347	1390	Right-handed alpha
Helix 52	52	D	1391	1399	Right-handed alpha
Helix 53	53	D	1410	1415	Right-handed alpha
Helix 54	54	D	1418	1427	Right-handed alpha
Helix 55	55	D	1429	1433	Right-handed 310
Helix 56	56	D	1435	1437	Right-handed 310
Helix 57	57	D	1438	1461	Right-handed alpha
Helix 58	58	D	1461	1481	Right-handed alpha
Helix 59	59	S	425	429	Right-handed 310
Helix 60	60	S	438	447	Right-handed alpha
Helix 61	61	S	468	475	Right-handed alpha
Helix 62	62	S	475	486	Right-handed alpha
Helix 63	63	S	489	493	Right-handed 310
Helix 64	64	S	510	528	Right-handed alpha
Helix 65	65	S	529	534	Right-handed alpha
Helix 66	66	S	558	566	Right-handed alpha
Helix 67	67	S	582	586	Right-handed 310
Helix 68	68	S	587	596	Right-handed alpha
Helix 69	69	S	610	623	Right-handed alpha
Helix 70	70	S	625	637	Right-handed alpha
Helix 71	71	S	1014	1032	Right-handed alpha
Helix 72	72	S	1043	1055	Right-handed alpha
Helix 73	73	S	1067	1075	Right-handed alpha
Helix 74	74	S	1082	1093	Right-handed alpha
Helix 75	75	S	1132	1137	Right-handed alpha
Helix 76	76	S	1165	1171	Right-handed alpha
Helix 77	77	S	1187	1200	Right-handed alpha
Helix 78	78	S	1205	1209	Right-handed 310
Helix 79	79	S	1229	1237	Right-handed alpha
Helix 80	80	S	1269	1283	Right-handed alpha
Helix 81	81	S	1315	1325	Right-handed alpha
Helix 82	82	S	1347	1390	Right-handed alpha
Helix 83	83	S	1390	1401	Right-handed alpha
Helix 84	84	S	1403	1415	Right-handed alpha
Helix 85	85	S	1418	1427	Right-handed alpha
Helix 86	86	S	1430	1433	Right-handed 310
Helix 87	87	S	1434	1461	Right-handed alpha
Helix 88	88	S	1461	1478	Right-handed alpha
Helix 89	89	U	436	447	Right-handed alpha
Helix 90	90	U	468	473	Right-handed alpha
Helix 91	91	U	475	486	Right-handed alpha
Helix 92	92	U	510	534	Right-handed alpha
Helix 93	93	U	558	566	Right-handed alpha
Helix 94	94	U	587	593	Right-handed alpha
Helix 95	95	U	617	622	Right-handed alpha
Helix 96	96	U	626	636	Right-handed alpha
Helix 97	97	U	1014	1033	Right-handed alpha
Helix 98	98	U	1043	1057	Right-handed alpha
Helix 99	99	U	1067	1077	Right-handed alpha
Helix 100	100	U	1082	1093	Right-handed alpha
Helix 101	101	U	1131	1135	Right-handed 310
Helix 102	102	U	1165	1171	Right-handed alpha
Helix 103	103	U	1187	1201	Right-handed alpha
Helix 104	104	U	1227	1232	Right-handed alpha
Helix 105	105	U	1270	1282	Right-handed alpha
Helix 106	106	U	1313	1325	Right-handed alpha
Helix 107	107	U	1347	1390	Right-handed alpha
Helix 108	108	U	1391	1401	Right-handed alpha
Helix 109	109	U	1403	1416	Right-handed alpha
Helix 110	110	U	1418	1427	Right-handed alpha
Helix 111	111	U	1430	1433	Right-handed 310
Helix 112	112	U	1436	1461	Right-handed alpha
Helix 113	113	U	1461	1481	Right-handed alpha

There are 32 sheets in PDB entry 2XCR. Click on sheet of interest to get list of strands forming it: BA, BB, BC, BD, BE, BF, BG, BH, A, DB, C, DD, DE, DF, G, SA, SB, SC, SD, SE, SF, SG, SH, SI, UA, UB, UC, UD, UE, UF, UG, UH,

There are 3 strands in BA sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	452	456	first strand
Strand 2	B	430	434	parallel
Strand 3	B	503	506	parallel

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There are 3 strands in BB sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	538	539	first strand
Strand 2	B	604	607	anti-parallel
Strand 3	B	1011	1013	parallel

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There are 2 strands in BC sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	547	548	first strand
Strand 2	B	553	554	anti-parallel

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There are 3 strands in BD sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	1065	1066	first strand
Strand 2	B	1125	1128	anti-parallel
Strand 3	B	1104	1107	anti-parallel

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There are 2 strands in BE sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	1146	1148	first strand
Strand 2	B	1155	1157	anti-parallel

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There are 4 strands in BF sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	1328	1334	first strand
Strand 2	B	1238	1244	anti-parallel
Strand 3	B	1223	1225	anti-parallel
Strand 4	B	1487	1489	parallel

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There are 4 strands in BG sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	1246	1251	first strand
Strand 2	B	1257	1263	anti-parallel
Strand 3	B	1304	1308	anti-parallel
Strand 4	B	1289	1294	anti-parallel

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There are 2 strands in BH sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	1336	1339	first strand
Strand 2	B	1342	1345	anti-parallel

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There are 6 strands in A sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	452	456	first strand
Strand 2	D	430	434	parallel
Strand 3	D	502	505	parallel
Strand 4	D	537	539	parallel
Strand 5	D	604	607	anti-parallel
Strand 6	D	1011	1013	parallel

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There are 2 strands in DB sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	547	549	first strand
Strand 2	D	552	554	anti-parallel

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There are 3 strands in C sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	1065	1066	first strand
Strand 2	D	1125	1128	anti-parallel
Strand 3	D	1104	1107	anti-parallel

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There are 2 strands in DD sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	1146	1148	first strand
Strand 2	D	1155	1157	anti-parallel

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There are 4 strands in DE sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	1328	1334	first strand
Strand 2	D	1238	1244	anti-parallel
Strand 3	D	1223	1225	anti-parallel
Strand 4	D	1487	1489	parallel

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There are 4 strands in DF sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	1246	1251	first strand
Strand 2	D	1257	1263	anti-parallel
Strand 3	D	1304	1308	anti-parallel
Strand 4	D	1289	1294	anti-parallel

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There are 2 strands in G sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	1336	1339	first strand
Strand 2	D	1342	1345	anti-parallel

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There are 6 strands in SA sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	452	454	first strand
Strand 2	S	430	432	parallel
Strand 3	S	503	504	parallel
Strand 4	S	537	539	parallel
Strand 5	S	604	607	anti-parallel
Strand 6	S	1011	1013	parallel

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There are 3 strands in SB sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	552	556	first strand
Strand 2	S	545	549	anti-parallel
Strand 3	S	576	579	anti-parallel

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There are 3 strands in SC sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	1065	1066	first strand
Strand 2	S	1125	1128	anti-parallel
Strand 3	S	1104	1107	anti-parallel

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There are 2 strands in SD sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	1146	1148	first strand
Strand 2	S	1155	1157	anti-parallel

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There are 2 strands in SE sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	1172	1175	first strand
Strand 2	S	1180	1183	anti-parallel

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There are 3 strands in SF sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	1243	1244	first strand
Strand 2	S	1223	1225	anti-parallel
Strand 3	S	1487	1489	parallel

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There are 2 strands in SG sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	1239	1240	first strand
Strand 2	S	1332	1333	anti-parallel

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There are 4 strands in SH sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	1249	1251	first strand
Strand 2	S	1257	1261	anti-parallel
Strand 3	S	1304	1308	anti-parallel
Strand 4	S	1289	1294	anti-parallel

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There are 2 strands in SI sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	1336	1339	first strand
Strand 2	S	1342	1345	anti-parallel

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There are 6 strands in UA sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	U	452	456	first strand
Strand 2	U	430	434	parallel
Strand 3	U	503	505	parallel
Strand 4	U	537	539	parallel
Strand 5	U	604	607	anti-parallel
Strand 6	U	1011	1013	parallel

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There are 3 strands in UB sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	U	554	556	first strand
Strand 2	U	545	547	anti-parallel
Strand 3	U	578	579	anti-parallel

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There are 3 strands in UC sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	U	1065	1066	first strand
Strand 2	U	1125	1128	anti-parallel
Strand 3	U	1104	1107	anti-parallel

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There are 2 strands in UD sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	U	1146	1148	first strand
Strand 2	U	1155	1157	anti-parallel

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There are 2 strands in UE sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	U	1172	1175	first strand
Strand 2	U	1180	1183	anti-parallel

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There are 4 strands in UF sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	U	1330	1334	first strand
Strand 2	U	1238	1244	anti-parallel
Strand 3	U	1222	1225	anti-parallel
Strand 4	U	1486	1489	parallel

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There are 4 strands in UG sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	U	1247	1251	first strand
Strand 2	U	1257	1261	anti-parallel
Strand 3	U	1304	1307	anti-parallel
Strand 4	U	1291	1294	anti-parallel

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There are 2 strands in UH sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	U	1336	1339	first strand
Strand 2	U	1342	1345	anti-parallel

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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il

Analysis of interatomic Contacts of Structural Units in PDB entry: 2XCR

Analysis of interatomic Contacts of Structural Units in PDB entry:
2XCR