Analysis of interatomic Contacts of Structural Units in PDB entry:
1XFB

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 1XFB entry

There are 12 chains in PDB entry 1XFB (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	HIS 3	GLU 344
B	HIS 3	GLU 344
C	HIS 3	GLU 344
D	HIS 3	GLU 344
E	HIS 3	GLU 344
F	HIS 3	GLU 344
G	HIS 3	GLU 344
H	HIS 3	GLU 344
I	HIS 3	GLU 344
J	HIS 3	GLU 344
K	HIS 3	GLU 344
L	HIS 3	GLU 344

There are168 helices in PDB entry 1XFB. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	9	24	Right-handed alpha
Helix 2	2	A	36	46	Right-handed alpha
Helix 3	3	A	52	65	Right-handed alpha
Helix 4	4	A	67	71	Right-handed 310
Helix 5	5	A	81	86	Right-handed 310
Helix 6	6	A	93	101	Right-handed alpha
Helix 7	7	A	130	141	Right-handed alpha
Helix 8	8	A	160	180	Right-handed alpha
Helix 9	9	A	198	220	Right-handed alpha
Helix 10	10	A	223	227	Right-handed 310
Helix 11	11	A	245	258	Right-handed alpha
Helix 12	12	A	276	289	Right-handed alpha
Helix 13	13	A	303	315	Right-handed alpha
Helix 14	14	A	320	339	Right-handed alpha
Helix 15	15	B	9	24	Right-handed alpha
Helix 16	16	B	36	46	Right-handed alpha
Helix 17	17	B	52	65	Right-handed alpha
Helix 18	18	B	67	71	Right-handed 310
Helix 19	19	B	81	86	Right-handed 310
Helix 20	20	B	93	101	Right-handed alpha
Helix 21	21	B	130	141	Right-handed alpha
Helix 22	22	B	160	180	Right-handed alpha
Helix 23	23	B	198	220	Right-handed alpha
Helix 24	24	B	223	227	Right-handed 310
Helix 25	25	B	245	258	Right-handed alpha
Helix 26	26	B	276	289	Right-handed alpha
Helix 27	27	B	303	315	Right-handed alpha
Helix 28	28	B	320	339	Right-handed alpha
Helix 29	29	C	9	24	Right-handed alpha
Helix 30	30	C	36	46	Right-handed alpha
Helix 31	31	C	52	65	Right-handed alpha
Helix 32	32	C	67	71	Right-handed 310
Helix 33	33	C	81	86	Right-handed 310
Helix 34	34	C	93	101	Right-handed alpha
Helix 35	35	C	130	141	Right-handed alpha
Helix 36	36	C	160	180	Right-handed alpha
Helix 37	37	C	198	220	Right-handed alpha
Helix 38	38	C	223	227	Right-handed 310
Helix 39	39	C	245	258	Right-handed alpha
Helix 40	40	C	276	289	Right-handed alpha
Helix 41	41	C	303	315	Right-handed alpha
Helix 42	42	C	320	339	Right-handed alpha
Helix 43	43	D	9	24	Right-handed alpha
Helix 44	44	D	36	46	Right-handed alpha
Helix 45	45	D	52	65	Right-handed alpha
Helix 46	46	D	67	71	Right-handed 310
Helix 47	47	D	81	86	Right-handed 310
Helix 48	48	D	93	101	Right-handed alpha
Helix 49	49	D	130	141	Right-handed alpha
Helix 50	50	D	160	180	Right-handed alpha
Helix 51	51	D	198	220	Right-handed alpha
Helix 52	52	D	223	227	Right-handed 310
Helix 53	53	D	245	258	Right-handed alpha
Helix 54	54	D	276	289	Right-handed alpha
Helix 55	55	D	303	315	Right-handed alpha
Helix 56	56	D	320	339	Right-handed alpha
Helix 57	57	E	9	24	Right-handed alpha
Helix 58	58	E	36	46	Right-handed alpha
Helix 59	59	E	52	65	Right-handed alpha
Helix 60	60	E	67	71	Right-handed 310
Helix 61	61	E	81	86	Right-handed 310
Helix 62	62	E	93	101	Right-handed alpha
Helix 63	63	E	130	141	Right-handed alpha
Helix 64	64	E	160	180	Right-handed alpha
Helix 65	65	E	198	220	Right-handed alpha
Helix 66	66	E	223	227	Right-handed 310
Helix 67	67	E	245	258	Right-handed alpha
Helix 68	68	E	276	289	Right-handed alpha
Helix 69	69	E	303	315	Right-handed alpha
Helix 70	70	E	320	339	Right-handed alpha
Helix 71	71	F	9	24	Right-handed alpha
Helix 72	72	F	36	46	Right-handed alpha
Helix 73	73	F	52	65	Right-handed alpha
Helix 74	74	F	67	71	Right-handed 310
Helix 75	75	F	81	86	Right-handed 310
Helix 76	76	F	93	101	Right-handed alpha
Helix 77	77	F	130	141	Right-handed alpha
Helix 78	78	F	160	180	Right-handed alpha
Helix 79	79	F	198	220	Right-handed alpha
Helix 80	80	F	223	227	Right-handed 310
Helix 81	81	F	245	258	Right-handed alpha
Helix 82	82	F	276	289	Right-handed alpha
Helix 83	83	F	303	315	Right-handed alpha
Helix 84	84	F	320	339	Right-handed alpha
Helix 85	85	G	9	24	Right-handed alpha
Helix 86	86	G	36	46	Right-handed alpha
Helix 87	87	G	52	65	Right-handed alpha
Helix 88	88	G	67	71	Right-handed 310
Helix 89	89	G	81	86	Right-handed 310
Helix 90	90	G	93	101	Right-handed alpha
Helix 91	91	G	130	141	Right-handed alpha
Helix 92	92	G	160	180	Right-handed alpha
Helix 93	93	G	198	220	Right-handed alpha
Helix 94	94	G	223	227	Right-handed 310
Helix 95	95	G	245	258	Right-handed alpha
Helix 96	96	G	276	289	Right-handed alpha
Helix 97	97	G	303	315	Right-handed alpha
Helix 98	98	G	320	339	Right-handed alpha
Helix 99	99	H	9	24	Right-handed alpha
Helix 100	100	H	36	46	Right-handed alpha
Helix 101	101	H	52	65	Right-handed alpha
Helix 102	102	H	67	71	Right-handed 310
Helix 103	103	H	81	86	Right-handed 310
Helix 104	104	H	93	101	Right-handed alpha
Helix 105	105	H	130	141	Right-handed alpha
Helix 106	106	H	160	180	Right-handed alpha
Helix 107	107	H	198	220	Right-handed alpha
Helix 108	108	H	223	227	Right-handed 310
Helix 109	109	H	245	258	Right-handed alpha
Helix 110	110	H	276	289	Right-handed alpha
Helix 111	111	H	303	315	Right-handed alpha
Helix 112	112	H	320	339	Right-handed alpha
Helix 113	113	I	9	24	Right-handed alpha
Helix 114	114	I	36	46	Right-handed alpha
Helix 115	115	I	52	65	Right-handed alpha
Helix 116	116	I	67	71	Right-handed 310
Helix 117	117	I	81	86	Right-handed 310
Helix 118	118	I	93	101	Right-handed alpha
Helix 119	119	I	130	141	Right-handed alpha
Helix 120	120	I	160	180	Right-handed alpha
Helix 121	121	I	198	220	Right-handed alpha
Helix 122	122	I	223	227	Right-handed 310
Helix 123	123	I	245	258	Right-handed alpha
Helix 124	124	I	276	289	Right-handed alpha
Helix 125	125	I	303	315	Right-handed alpha
Helix 126	126	I	320	339	Right-handed alpha
Helix 127	127	J	9	24	Right-handed alpha
Helix 128	128	J	36	46	Right-handed alpha
Helix 129	129	J	52	65	Right-handed alpha
Helix 130	130	J	67	71	Right-handed 310
Helix 131	131	J	81	86	Right-handed 310
Helix 132	132	J	93	101	Right-handed alpha
Helix 133	133	J	130	141	Right-handed alpha
Helix 134	134	J	160	180	Right-handed alpha
Helix 135	135	J	198	220	Right-handed alpha
Helix 136	136	J	223	227	Right-handed 310
Helix 137	137	J	245	258	Right-handed alpha
Helix 138	138	J	276	289	Right-handed alpha
Helix 139	139	J	303	315	Right-handed alpha
Helix 140	140	J	320	339	Right-handed alpha
Helix 141	141	K	9	24	Right-handed alpha
Helix 142	142	K	36	46	Right-handed alpha
Helix 143	143	K	52	65	Right-handed alpha
Helix 144	144	K	67	71	Right-handed 310
Helix 145	145	K	81	86	Right-handed 310
Helix 146	146	K	93	101	Right-handed alpha
Helix 147	147	K	130	141	Right-handed alpha
Helix 148	148	K	160	180	Right-handed alpha
Helix 149	149	K	198	220	Right-handed alpha
Helix 150	150	K	223	227	Right-handed 310
Helix 151	151	K	245	258	Right-handed alpha
Helix 152	152	K	276	289	Right-handed alpha
Helix 153	153	K	303	315	Right-handed alpha
Helix 154	154	K	320	339	Right-handed alpha
Helix 155	155	L	9	24	Right-handed alpha
Helix 156	156	L	36	46	Right-handed alpha
Helix 157	157	L	52	65	Right-handed alpha
Helix 158	158	L	67	71	Right-handed 310
Helix 159	159	L	81	86	Right-handed 310
Helix 160	160	L	93	101	Right-handed alpha
Helix 161	161	L	130	141	Right-handed alpha
Helix 162	162	L	160	180	Right-handed alpha
Helix 163	163	L	198	220	Right-handed alpha
Helix 164	164	L	223	227	Right-handed 310
Helix 165	165	L	245	258	Right-handed alpha
Helix 166	166	L	276	289	Right-handed alpha
Helix 167	167	L	303	315	Right-handed alpha
Helix 168	168	L	320	339	Right-handed alpha

There are 24 sheets in PDB entry 1XFB. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X,

There are 9 strands in A sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	29	33	first strand
Strand 2	A	74	79	parallel
Strand 3	A	104	108	parallel
Strand 4	A	145	152	parallel
Strand 5	A	184	191	parallel
Strand 6	A	228	229	parallel
Strand 7	A	267	270	parallel
Strand 8	A	297	302	parallel
Strand 9	A	29	33	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	113	115	first strand
Strand 2	A	123	125	anti-parallel

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There are 9 strands in C sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	29	33	first strand
Strand 2	B	74	79	parallel
Strand 3	B	104	108	parallel
Strand 4	B	145	152	parallel
Strand 5	B	184	191	parallel
Strand 6	B	228	229	parallel
Strand 7	B	267	270	parallel
Strand 8	B	297	302	parallel
Strand 9	B	29	33	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	113	115	first strand
Strand 2	B	123	125	anti-parallel

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There are 9 strands in E sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	29	33	first strand
Strand 2	C	74	79	parallel
Strand 3	C	104	108	parallel
Strand 4	C	145	152	parallel
Strand 5	C	184	191	parallel
Strand 6	C	228	229	parallel
Strand 7	C	267	270	parallel
Strand 8	C	297	302	parallel
Strand 9	C	29	33	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	113	115	first strand
Strand 2	C	123	125	anti-parallel

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There are 9 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	29	33	first strand
Strand 2	D	74	79	parallel
Strand 3	D	104	108	parallel
Strand 4	D	145	152	parallel
Strand 5	D	184	191	parallel
Strand 6	D	228	229	parallel
Strand 7	D	267	270	parallel
Strand 8	D	297	302	parallel
Strand 9	D	29	33	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	113	115	first strand
Strand 2	D	123	125	anti-parallel

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There are 9 strands in I sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	29	33	first strand
Strand 2	E	74	79	parallel
Strand 3	E	104	108	parallel
Strand 4	E	145	152	parallel
Strand 5	E	184	191	parallel
Strand 6	E	228	229	parallel
Strand 7	E	267	270	parallel
Strand 8	E	297	302	parallel
Strand 9	E	29	33	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	113	115	first strand
Strand 2	E	123	125	anti-parallel

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There are 9 strands in K sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	29	33	first strand
Strand 2	F	74	79	parallel
Strand 3	F	104	108	parallel
Strand 4	F	145	152	parallel
Strand 5	F	184	191	parallel
Strand 6	F	228	229	parallel
Strand 7	F	267	270	parallel
Strand 8	F	297	302	parallel
Strand 9	F	29	33	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	113	115	first strand
Strand 2	F	123	125	anti-parallel

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There are 9 strands in M sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	29	33	first strand
Strand 2	G	74	79	parallel
Strand 3	G	104	108	parallel
Strand 4	G	145	152	parallel
Strand 5	G	184	191	parallel
Strand 6	G	228	229	parallel
Strand 7	G	267	270	parallel
Strand 8	G	297	302	parallel
Strand 9	G	29	33	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	113	115	first strand
Strand 2	G	123	125	anti-parallel

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There are 9 strands in O sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	29	33	first strand
Strand 2	H	74	79	parallel
Strand 3	H	104	108	parallel
Strand 4	H	145	152	parallel
Strand 5	H	184	191	parallel
Strand 6	H	228	229	parallel
Strand 7	H	267	270	parallel
Strand 8	H	297	302	parallel
Strand 9	H	29	33	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	113	115	first strand
Strand 2	H	123	125	anti-parallel

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There are 9 strands in Q sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	29	33	first strand
Strand 2	I	74	79	parallel
Strand 3	I	104	108	parallel
Strand 4	I	145	152	parallel
Strand 5	I	184	191	parallel
Strand 6	I	228	229	parallel
Strand 7	I	267	270	parallel
Strand 8	I	297	302	parallel
Strand 9	I	29	33	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	113	115	first strand
Strand 2	I	123	125	anti-parallel

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There are 9 strands in S sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	29	33	first strand
Strand 2	J	74	79	parallel
Strand 3	J	104	108	parallel
Strand 4	J	145	152	parallel
Strand 5	J	184	191	parallel
Strand 6	J	228	229	parallel
Strand 7	J	267	270	parallel
Strand 8	J	297	302	parallel
Strand 9	J	29	33	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	113	115	first strand
Strand 2	J	123	125	anti-parallel

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There are 9 strands in U sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	29	33	first strand
Strand 2	K	74	79	parallel
Strand 3	K	104	108	parallel
Strand 4	K	145	152	parallel
Strand 5	K	184	191	parallel
Strand 6	K	228	229	parallel
Strand 7	K	267	270	parallel
Strand 8	K	297	302	parallel
Strand 9	K	29	33	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	113	115	first strand
Strand 2	K	123	125	anti-parallel

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There are 9 strands in W sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	29	33	first strand
Strand 2	L	74	79	parallel
Strand 3	L	104	108	parallel
Strand 4	L	145	152	parallel
Strand 5	L	184	191	parallel
Strand 6	L	228	229	parallel
Strand 7	L	267	270	parallel
Strand 8	L	297	302	parallel
Strand 9	L	29	33	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	113	115	first strand
Strand 2	L	123	125	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: 1XFB

Analysis of interatomic Contacts of Structural Units in PDB entry:
1XFB