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

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 2DXB entry

There are 40 chains in PDB entry 2DXB (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	VAL 9	ALA 126
B	SER 3	PRO 154
C	GLU 23	LEU 130
C	SER 132	SER 132
C	TYR 134	VAL 239
D	PRO 8	ALA 126
E	SER 4	PRO 154
F	VAL 24	LEU 130
F	SER 132	SER 132
F	TYR 134	VAL 239
G	LYS 7	ALA 126
H	SER 2	LYS 157
I	GLU 23	LEU 130
I	SER 132	SER 132
I	TYR 134	VAL 239
J	LYS 7	ALA 126
K	SER 3	PRO 154
L	VAL 24	LEU 130
L	SER 132	SER 132
L	TYR 134	VAL 239
M	VAL 9	ALA 126
N	SER 3	PRO 154
O	GLU 23	LEU 130
O	SER 132	SER 132
O	TYR 134	VAL 239
P	PRO 8	ALA 126
Q	SER 4	PRO 154
R	VAL 24	LEU 130
R	SER 132	SER 132
R	TYR 134	VAL 239
S	LYS 7	ALA 126
T	SER 2	LYS 157
U	GLU 23	LEU 130
U	SER 132	SER 132
U	TYR 134	VAL 239
V	LYS 7	ALA 126
W	SER 3	PRO 154
X	VAL 24	LEU 130
X	SER 132	SER 132
X	TYR 134	VAL 239

There are213 helices in PDB entry 2DXB. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	13	20	Right-handed alpha
Helix 2	2	A	25	29	Right-handed 310
Helix 3	3	A	57	61	Right-handed 310
Helix 4	4	A	76	81	Right-handed alpha
Helix 5	5	A	99	101	Right-handed 310
Helix 6	6	A	106	110	Right-handed 310
Helix 7	7	B	3	19	Right-handed alpha
Helix 8	8	B	31	35	Right-handed 310
Helix 9	9	B	36	44	Right-handed alpha
Helix 10	10	B	66	82	Right-handed alpha
Helix 11	11	B	86	96	Right-handed alpha
Helix 12	12	B	98	106	Right-handed alpha
Helix 13	13	B	107	123	Right-handed alpha
Helix 14	14	B	127	144	Right-handed alpha
Helix 15	15	C	25	41	Right-handed alpha
Helix 16	16	C	45	59	Right-handed alpha
Helix 17	17	C	61	74	Right-handed alpha
Helix 18	18	C	74	84	Right-handed alpha
Helix 19	19	C	84	90	Right-handed alpha
Helix 20	20	C	91	93	Right-handed 310
Helix 21	21	C	135	140	Right-handed alpha
Helix 22	22	C	144	147	Right-handed 310
Helix 23	23	C	148	155	Right-handed alpha
Helix 24	24	C	158	166	Right-handed alpha
Helix 25	25	C	201	208	Right-handed alpha
Helix 26	26	C	210	216	Right-handed alpha
Helix 27	27	D	13	20	Right-handed alpha
Helix 28	28	D	25	29	Right-handed 310
Helix 29	29	D	57	61	Right-handed 310
Helix 30	30	D	76	81	Right-handed alpha
Helix 31	31	D	98	102	Right-handed alpha
Helix 32	32	D	106	110	Right-handed 310
Helix 33	33	E	4	16	Right-handed alpha
Helix 34	34	E	17	20	Right-handed 310
Helix 35	35	E	31	35	Right-handed 310
Helix 36	36	E	36	44	Right-handed alpha
Helix 37	37	E	66	82	Right-handed alpha
Helix 38	38	E	86	96	Right-handed alpha
Helix 39	39	E	98	106	Right-handed alpha
Helix 40	40	E	107	123	Right-handed alpha
Helix 41	41	E	127	144	Right-handed alpha
Helix 42	42	F	25	41	Right-handed alpha
Helix 43	43	F	45	59	Right-handed alpha
Helix 44	44	F	61	74	Right-handed alpha
Helix 45	45	F	74	84	Right-handed alpha
Helix 46	46	F	84	90	Right-handed alpha
Helix 47	47	F	91	93	Right-handed 310
Helix 48	48	F	135	140	Right-handed alpha
Helix 49	49	F	144	147	Right-handed 310
Helix 50	50	F	148	155	Right-handed alpha
Helix 51	51	F	158	166	Right-handed alpha
Helix 52	52	F	201	208	Right-handed alpha
Helix 53	53	F	210	216	Right-handed alpha
Helix 54	54	G	13	20	Right-handed alpha
Helix 55	55	G	25	29	Right-handed 310
Helix 56	56	G	57	61	Right-handed 310
Helix 57	57	G	76	81	Right-handed alpha
Helix 58	58	G	98	102	Right-handed alpha
Helix 59	59	G	106	110	Right-handed 310
Helix 60	60	H	2	16	Right-handed alpha
Helix 61	61	H	17	20	Right-handed 310
Helix 62	62	H	31	35	Right-handed 310
Helix 63	63	H	36	44	Right-handed alpha
Helix 64	64	H	66	82	Right-handed alpha
Helix 65	65	H	86	96	Right-handed alpha
Helix 66	66	H	98	106	Right-handed alpha
Helix 67	67	H	107	123	Right-handed alpha
Helix 68	68	H	127	144	Right-handed alpha
Helix 69	69	I	25	41	Right-handed alpha
Helix 70	70	I	45	58	Right-handed alpha
Helix 71	71	I	61	74	Right-handed alpha
Helix 72	72	I	74	84	Right-handed alpha
Helix 73	73	I	84	91	Right-handed alpha
Helix 74	74	I	135	140	Right-handed alpha
Helix 75	75	I	144	147	Right-handed 310
Helix 76	76	I	148	155	Right-handed alpha
Helix 77	77	I	158	166	Right-handed alpha
Helix 78	78	I	201	208	Right-handed alpha
Helix 79	79	I	210	216	Right-handed alpha
Helix 80	80	J	13	20	Right-handed alpha
Helix 81	81	J	25	29	Right-handed 310
Helix 82	82	J	57	61	Right-handed 310
Helix 83	83	J	76	81	Right-handed alpha
Helix 84	84	J	98	102	Right-handed alpha
Helix 85	85	J	106	110	Right-handed 310
Helix 86	86	K	3	16	Right-handed alpha
Helix 87	87	K	17	20	Right-handed 310
Helix 88	88	K	31	35	Right-handed 310
Helix 89	89	K	36	44	Right-handed alpha
Helix 90	90	K	66	82	Right-handed alpha
Helix 91	91	K	86	96	Right-handed alpha
Helix 92	92	K	98	106	Right-handed alpha
Helix 93	93	K	107	123	Right-handed alpha
Helix 94	94	K	127	144	Right-handed alpha
Helix 95	95	L	25	41	Right-handed alpha
Helix 96	96	L	45	58	Right-handed alpha
Helix 97	97	L	61	73	Right-handed alpha
Helix 98	98	L	74	84	Right-handed alpha
Helix 99	99	L	84	90	Right-handed alpha
Helix 100	100	L	91	93	Right-handed 310
Helix 101	101	L	135	140	Right-handed alpha
Helix 102	102	L	144	147	Right-handed 310
Helix 103	103	L	148	155	Right-handed alpha
Helix 104	104	L	158	166	Right-handed alpha
Helix 105	105	L	201	207	Right-handed alpha
Helix 106	106	L	210	216	Right-handed alpha
Helix 107	107	M	13	20	Right-handed alpha
Helix 108	108	M	25	29	Right-handed 310
Helix 109	109	M	57	61	Right-handed 310
Helix 110	110	M	76	81	Right-handed alpha
Helix 111	111	M	98	102	Right-handed alpha
Helix 112	112	M	106	110	Right-handed 310
Helix 113	113	N	3	16	Right-handed alpha
Helix 114	114	N	17	20	Right-handed 310
Helix 115	115	N	31	35	Right-handed 310
Helix 116	116	N	36	44	Right-handed alpha
Helix 117	117	N	66	82	Right-handed alpha
Helix 118	118	N	86	96	Right-handed alpha
Helix 119	119	N	98	106	Right-handed alpha
Helix 120	120	N	107	123	Right-handed alpha
Helix 121	121	N	127	144	Right-handed alpha
Helix 122	122	O	25	41	Right-handed alpha
Helix 123	123	O	45	59	Right-handed alpha
Helix 124	124	O	61	73	Right-handed alpha
Helix 125	125	O	74	84	Right-handed alpha
Helix 126	126	O	84	90	Right-handed alpha
Helix 127	127	O	91	93	Right-handed 310
Helix 128	128	O	135	140	Right-handed alpha
Helix 129	129	O	143	148	Right-handed alpha
Helix 130	130	O	148	155	Right-handed alpha
Helix 131	131	O	158	166	Right-handed alpha
Helix 132	132	O	201	208	Right-handed alpha
Helix 133	133	O	210	216	Right-handed alpha
Helix 134	134	P	13	20	Right-handed alpha
Helix 135	135	P	25	29	Right-handed 310
Helix 136	136	P	57	61	Right-handed 310
Helix 137	137	P	76	81	Right-handed alpha
Helix 138	138	P	98	102	Right-handed alpha
Helix 139	139	P	106	110	Right-handed 310
Helix 140	140	Q	4	16	Right-handed alpha
Helix 141	141	Q	17	20	Right-handed 310
Helix 142	142	Q	31	35	Right-handed 310
Helix 143	143	Q	36	45	Right-handed alpha
Helix 144	144	Q	66	82	Right-handed alpha
Helix 145	145	Q	86	96	Right-handed alpha
Helix 146	146	Q	98	106	Right-handed alpha
Helix 147	147	Q	107	123	Right-handed alpha
Helix 148	148	Q	127	144	Right-handed alpha
Helix 149	149	R	25	41	Right-handed alpha
Helix 150	150	R	45	59	Right-handed alpha
Helix 151	151	R	61	74	Right-handed alpha
Helix 152	152	R	74	84	Right-handed alpha
Helix 153	153	R	84	90	Right-handed alpha
Helix 154	154	R	91	93	Right-handed 310
Helix 155	155	R	135	140	Right-handed alpha
Helix 156	156	R	143	147	Right-handed 310
Helix 157	157	R	148	155	Right-handed alpha
Helix 158	158	R	158	166	Right-handed alpha
Helix 159	159	R	201	208	Right-handed alpha
Helix 160	160	R	210	216	Right-handed alpha
Helix 161	161	S	13	20	Right-handed alpha
Helix 162	162	S	25	29	Right-handed 310
Helix 163	163	S	57	61	Right-handed 310
Helix 164	164	S	76	81	Right-handed alpha
Helix 165	165	S	98	102	Right-handed alpha
Helix 166	166	S	106	110	Right-handed 310
Helix 167	167	T	2	17	Right-handed alpha
Helix 168	168	T	18	20	Right-handed 310
Helix 169	169	T	31	35	Right-handed 310
Helix 170	170	T	36	44	Right-handed alpha
Helix 171	171	T	66	82	Right-handed alpha
Helix 172	172	T	86	96	Right-handed alpha
Helix 173	173	T	98	106	Right-handed alpha
Helix 174	174	T	107	123	Right-handed alpha
Helix 175	175	T	127	145	Right-handed alpha
Helix 176	176	U	25	41	Right-handed alpha
Helix 177	177	U	45	59	Right-handed alpha
Helix 178	178	U	61	74	Right-handed alpha
Helix 179	179	U	74	84	Right-handed alpha
Helix 180	180	U	84	90	Right-handed alpha
Helix 181	181	U	91	93	Right-handed 310
Helix 182	182	U	135	140	Right-handed alpha
Helix 183	183	U	143	148	Right-handed alpha
Helix 184	184	U	148	155	Right-handed alpha
Helix 185	185	U	158	166	Right-handed alpha
Helix 186	186	U	201	208	Right-handed alpha
Helix 187	187	U	210	216	Right-handed alpha
Helix 188	188	V	13	20	Right-handed alpha
Helix 189	189	V	25	29	Right-handed 310
Helix 190	190	V	57	61	Right-handed 310
Helix 191	191	V	76	81	Right-handed alpha
Helix 192	192	V	98	102	Right-handed alpha
Helix 193	193	V	106	110	Right-handed 310
Helix 194	194	W	3	16	Right-handed alpha
Helix 195	195	W	17	20	Right-handed 310
Helix 196	196	W	31	35	Right-handed 310
Helix 197	197	W	36	44	Right-handed alpha
Helix 198	198	W	66	82	Right-handed alpha
Helix 199	199	W	86	96	Right-handed alpha
Helix 200	200	W	98	106	Right-handed alpha
Helix 201	201	W	107	123	Right-handed alpha
Helix 202	202	W	127	144	Right-handed alpha
Helix 203	203	X	25	41	Right-handed alpha
Helix 204	204	X	45	59	Right-handed alpha
Helix 205	205	X	61	74	Right-handed alpha
Helix 206	206	X	74	84	Right-handed alpha
Helix 207	207	X	84	91	Right-handed alpha
Helix 208	208	X	135	140	Right-handed alpha
Helix 209	209	X	144	147	Right-handed 310
Helix 210	210	X	148	155	Right-handed alpha
Helix 211	211	X	158	166	Right-handed alpha
Helix 212	212	X	201	208	Right-handed alpha
Helix 213	213	X	210	216	Right-handed alpha

There are 28 sheets in PDB entry 2DXB. 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, Y, Z, AA, AB,

There are 7 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	123	125	first strand
Strand 2	A	42	45	anti-parallel
Strand 3	A	64	74	anti-parallel
Strand 4	A	89	97	anti-parallel
Strand 5	A	113	119	anti-parallel
Strand 6	C	175	180	parallel
Strand 7	C	122	127	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	B	22	26	first strand
Strand 2	H	22	26	anti-parallel

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There are 2 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	62	63	first strand
Strand 2	C	232	233	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	C	112	117	first strand
Strand 2	C	185	190	parallel

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There are 7 strands in E sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	123	125	first strand
Strand 2	D	42	45	anti-parallel
Strand 3	D	64	74	anti-parallel
Strand 4	D	89	97	anti-parallel
Strand 5	D	113	119	anti-parallel
Strand 6	F	175	180	parallel
Strand 7	F	122	127	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	E	22	26	first strand
Strand 2	K	22	26	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	E	62	63	first strand
Strand 2	F	232	233	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	F	112	117	first strand
Strand 2	F	185	190	parallel

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There are 7 strands in I sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	123	125	first strand
Strand 2	G	42	45	anti-parallel
Strand 3	G	64	74	anti-parallel
Strand 4	G	89	97	anti-parallel
Strand 5	G	113	119	anti-parallel
Strand 6	I	175	180	parallel
Strand 7	I	122	127	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	H	62	63	first strand
Strand 2	I	232	233	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	112	117	first strand
Strand 2	I	185	190	parallel

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There are 7 strands in L sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	123	125	first strand
Strand 2	J	42	45	anti-parallel
Strand 3	J	64	74	anti-parallel
Strand 4	J	89	97	anti-parallel
Strand 5	J	113	119	anti-parallel
Strand 6	L	175	180	parallel
Strand 7	L	122	127	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	62	63	first strand
Strand 2	L	232	233	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	L	112	117	first strand
Strand 2	L	185	190	parallel

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There are 7 strands in O sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	123	125	first strand
Strand 2	M	42	45	anti-parallel
Strand 3	M	64	74	anti-parallel
Strand 4	M	89	97	anti-parallel
Strand 5	M	113	119	anti-parallel
Strand 6	O	175	180	parallel
Strand 7	O	122	127	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	N	22	26	first strand
Strand 2	T	22	26	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	N	62	63	first strand
Strand 2	O	232	233	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	O	113	117	first strand
Strand 2	O	186	190	parallel

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There are 7 strands in S sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	123	125	first strand
Strand 2	P	42	45	anti-parallel
Strand 3	P	64	74	anti-parallel
Strand 4	P	89	97	anti-parallel
Strand 5	P	113	119	anti-parallel
Strand 6	R	175	180	parallel
Strand 7	R	122	127	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	Q	22	26	first strand
Strand 2	W	22	26	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Q	62	63	first strand
Strand 2	R	232	233	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	R	112	117	first strand
Strand 2	R	185	190	parallel

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There are 7 strands in W sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	123	125	first strand
Strand 2	S	42	45	anti-parallel
Strand 3	S	64	74	anti-parallel
Strand 4	S	89	97	anti-parallel
Strand 5	S	113	119	anti-parallel
Strand 6	U	175	180	parallel
Strand 7	U	122	127	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	T	62	63	first strand
Strand 2	U	232	233	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	U	112	117	first strand
Strand 2	U	185	190	parallel

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There are 7 strands in Z sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	V	123	125	first strand
Strand 2	V	42	45	anti-parallel
Strand 3	V	64	74	anti-parallel
Strand 4	V	89	97	anti-parallel
Strand 5	V	113	119	anti-parallel
Strand 6	X	175	180	parallel
Strand 7	X	122	127	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	W	62	63	first strand
Strand 2	X	232	233	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	X	112	117	first strand
Strand 2	X	185	190	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: 2DXB

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