Analysis of interatomic Contacts of Structural Units in PDB entry:
4NXK

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 4NXK entry

There are 8 chains in PDB entry 4NXK (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ALA 14	VAL 444
B	SER 15	VAL 444
C	SER 15	VAL 444
D	ALA 14	LEU 448
E	ALA 14	VAL 444
F	SER 15	VAL 444
G	SER 15	VAL 444
H	SER 15	VAL 444

There are153 helices in PDB entry 4NXK. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	16	23	Right-handed 310
Helix 2	2	A	31	36	Right-handed alpha
Helix 3	3	A	40	55	Right-handed alpha
Helix 4	4	A	56	59	Right-handed 310
Helix 5	5	A	100	104	Right-handed 310
Helix 6	6	A	109	119	Right-handed alpha
Helix 7	7	A	133	139	Right-handed alpha
Helix 8	8	A	148	153	Right-handed 310
Helix 9	9	A	174	190	Right-handed alpha
Helix 10	10	A	208	223	Right-handed alpha
Helix 11	11	A	236	238	Right-handed 310
Helix 12	12	A	239	247	Right-handed alpha
Helix 13	13	A	259	274	Right-handed alpha
Helix 14	14	A	275	277	Right-handed 310
Helix 15	15	A	298	302	Right-handed 310
Helix 16	16	A	310	325	Right-handed alpha
Helix 17	17	A	333	337	Right-handed 310
Helix 18	18	A	338	344	Right-handed alpha
Helix 19	19	A	347	357	Right-handed alpha
Helix 20	20	B	16	23	Right-handed 310
Helix 21	21	B	31	36	Right-handed alpha
Helix 22	22	B	40	55	Right-handed alpha
Helix 23	23	B	56	59	Right-handed 310
Helix 24	24	B	100	104	Right-handed 310
Helix 25	25	B	109	119	Right-handed alpha
Helix 26	26	B	133	139	Right-handed alpha
Helix 27	27	B	148	153	Right-handed 310
Helix 28	28	B	174	190	Right-handed alpha
Helix 29	29	B	208	223	Right-handed alpha
Helix 30	30	B	236	238	Right-handed 310
Helix 31	31	B	239	247	Right-handed alpha
Helix 32	32	B	259	274	Right-handed alpha
Helix 33	33	B	275	277	Right-handed 310
Helix 34	34	B	298	302	Right-handed 310
Helix 35	35	B	310	325	Right-handed alpha
Helix 36	36	B	333	337	Right-handed 310
Helix 37	37	B	338	344	Right-handed alpha
Helix 38	38	B	347	357	Right-handed alpha
Helix 39	39	C	16	23	Right-handed 310
Helix 40	40	C	31	36	Right-handed alpha
Helix 41	41	C	40	55	Right-handed alpha
Helix 42	42	C	56	59	Right-handed 310
Helix 43	43	C	100	104	Right-handed 310
Helix 44	44	C	109	119	Right-handed alpha
Helix 45	45	C	133	139	Right-handed alpha
Helix 46	46	C	148	153	Right-handed alpha
Helix 47	47	C	174	190	Right-handed alpha
Helix 48	48	C	208	223	Right-handed alpha
Helix 49	49	C	236	238	Right-handed 310
Helix 50	50	C	239	247	Right-handed alpha
Helix 51	51	C	259	274	Right-handed alpha
Helix 52	52	C	275	277	Right-handed 310
Helix 53	53	C	298	302	Right-handed 310
Helix 54	54	C	310	325	Right-handed alpha
Helix 55	55	C	333	337	Right-handed 310
Helix 56	56	C	338	344	Right-handed alpha
Helix 57	57	C	347	357	Right-handed alpha
Helix 58	58	D	16	22	Right-handed 310
Helix 59	59	D	31	36	Right-handed alpha
Helix 60	60	D	40	55	Right-handed alpha
Helix 61	61	D	56	59	Right-handed 310
Helix 62	62	D	100	104	Right-handed 310
Helix 63	63	D	109	119	Right-handed alpha
Helix 64	64	D	133	139	Right-handed alpha
Helix 65	65	D	148	153	Right-handed 310
Helix 66	66	D	174	190	Right-handed alpha
Helix 67	67	D	208	223	Right-handed alpha
Helix 68	68	D	236	238	Right-handed 310
Helix 69	69	D	239	247	Right-handed alpha
Helix 70	70	D	259	274	Right-handed alpha
Helix 71	71	D	275	277	Right-handed 310
Helix 72	72	D	298	302	Right-handed 310
Helix 73	73	D	310	325	Right-handed alpha
Helix 74	74	D	333	337	Right-handed 310
Helix 75	75	D	338	344	Right-handed alpha
Helix 76	76	D	347	357	Right-handed alpha
Helix 77	77	D	400	403	Right-handed 310
Helix 78	78	E	16	23	Right-handed 310
Helix 79	79	E	31	36	Right-handed alpha
Helix 80	80	E	40	55	Right-handed alpha
Helix 81	81	E	56	59	Right-handed 310
Helix 82	82	E	100	104	Right-handed 310
Helix 83	83	E	109	119	Right-handed alpha
Helix 84	84	E	133	139	Right-handed alpha
Helix 85	85	E	148	153	Right-handed 310
Helix 86	86	E	174	190	Right-handed alpha
Helix 87	87	E	208	223	Right-handed alpha
Helix 88	88	E	236	238	Right-handed 310
Helix 89	89	E	239	247	Right-handed alpha
Helix 90	90	E	259	274	Right-handed alpha
Helix 91	91	E	275	277	Right-handed 310
Helix 92	92	E	298	302	Right-handed 310
Helix 93	93	E	310	325	Right-handed alpha
Helix 94	94	E	333	337	Right-handed 310
Helix 95	95	E	338	344	Right-handed alpha
Helix 96	96	E	347	357	Right-handed alpha
Helix 97	97	F	16	23	Right-handed 310
Helix 98	98	F	31	36	Right-handed alpha
Helix 99	99	F	40	55	Right-handed alpha
Helix 100	100	F	56	59	Right-handed 310
Helix 101	101	F	100	104	Right-handed 310
Helix 102	102	F	109	119	Right-handed alpha
Helix 103	103	F	133	139	Right-handed alpha
Helix 104	104	F	148	153	Right-handed 310
Helix 105	105	F	174	190	Right-handed alpha
Helix 106	106	F	208	223	Right-handed alpha
Helix 107	107	F	236	238	Right-handed 310
Helix 108	108	F	239	247	Right-handed alpha
Helix 109	109	F	259	274	Right-handed alpha
Helix 110	110	F	275	277	Right-handed 310
Helix 111	111	F	298	302	Right-handed 310
Helix 112	112	F	310	325	Right-handed alpha
Helix 113	113	F	333	337	Right-handed 310
Helix 114	114	F	338	344	Right-handed alpha
Helix 115	115	F	347	357	Right-handed alpha
Helix 116	116	G	16	23	Right-handed 310
Helix 117	117	G	31	36	Right-handed alpha
Helix 118	118	G	40	55	Right-handed alpha
Helix 119	119	G	56	59	Right-handed 310
Helix 120	120	G	100	104	Right-handed 310
Helix 121	121	G	109	119	Right-handed alpha
Helix 122	122	G	133	139	Right-handed alpha
Helix 123	123	G	148	152	Right-handed 310
Helix 124	124	G	174	190	Right-handed alpha
Helix 125	125	G	208	223	Right-handed alpha
Helix 126	126	G	236	238	Right-handed 310
Helix 127	127	G	239	247	Right-handed alpha
Helix 128	128	G	259	274	Right-handed alpha
Helix 129	129	G	275	277	Right-handed 310
Helix 130	130	G	298	302	Right-handed 310
Helix 131	131	G	310	325	Right-handed alpha
Helix 132	132	G	333	337	Right-handed 310
Helix 133	133	G	338	344	Right-handed alpha
Helix 134	134	G	347	357	Right-handed alpha
Helix 135	135	H	17	23	Right-handed 310
Helix 136	136	H	31	36	Right-handed alpha
Helix 137	137	H	40	55	Right-handed alpha
Helix 138	138	H	56	59	Right-handed 310
Helix 139	139	H	100	104	Right-handed 310
Helix 140	140	H	109	119	Right-handed alpha
Helix 141	141	H	133	139	Right-handed alpha
Helix 142	142	H	148	153	Right-handed 310
Helix 143	143	H	174	190	Right-handed alpha
Helix 144	144	H	208	223	Right-handed alpha
Helix 145	145	H	236	238	Right-handed 310
Helix 146	146	H	239	247	Right-handed alpha
Helix 147	147	H	259	274	Right-handed alpha
Helix 148	148	H	275	277	Right-handed 310
Helix 149	149	H	298	302	Right-handed 310
Helix 150	150	H	310	325	Right-handed alpha
Helix 151	151	H	333	337	Right-handed 310
Helix 152	152	H	338	344	Right-handed alpha
Helix 153	153	H	347	357	Right-handed alpha

There are 40 sheets in PDB entry 4NXK. 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, AC, AD, AE, AF, AG, AH, AI, AJ, AK, AL, AM, AN,

There are 8 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	282	284	first strand
Strand 2	A	249	251	parallel
Strand 3	A	227	230	parallel
Strand 4	A	193	197	parallel
Strand 5	A	122	128	parallel
Strand 6	A	62	65	parallel
Strand 7	A	27	30	parallel
Strand 8	A	328	330	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	131	132	first strand
Strand 2	A	165	166	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	A	292	293	first strand
Strand 2	A	305	306	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	358	366	first strand
Strand 2	A	369	375	anti-parallel
Strand 3	A	381	387	anti-parallel
Strand 4	A	435	442	anti-parallel
Strand 5	A	408	412	anti-parallel
Strand 6	A	417	422	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	393	398	first strand
Strand 2	A	425	430	anti-parallel

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There are 8 strands in F sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	282	284	first strand
Strand 2	B	249	251	parallel
Strand 3	B	227	230	parallel
Strand 4	B	193	197	parallel
Strand 5	B	122	128	parallel
Strand 6	B	62	65	parallel
Strand 7	B	27	30	parallel
Strand 8	B	328	330	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	B	131	132	first strand
Strand 2	B	165	166	anti-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	B	292	293	first strand
Strand 2	B	305	306	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	358	366	first strand
Strand 2	B	369	375	anti-parallel
Strand 3	B	381	387	anti-parallel
Strand 4	B	435	442	anti-parallel
Strand 5	B	408	412	anti-parallel
Strand 6	B	417	422	anti-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	B	393	398	first strand
Strand 2	B	425	430	anti-parallel

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There are 8 strands in K sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	282	284	first strand
Strand 2	C	249	251	parallel
Strand 3	C	227	230	parallel
Strand 4	C	193	197	parallel
Strand 5	C	122	128	parallel
Strand 6	C	62	65	parallel
Strand 7	C	27	30	parallel
Strand 8	C	328	330	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	C	131	132	first strand
Strand 2	C	165	166	anti-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	C	292	293	first strand
Strand 2	C	305	306	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	358	366	first strand
Strand 2	C	369	375	anti-parallel
Strand 3	C	381	387	anti-parallel
Strand 4	C	434	442	anti-parallel
Strand 5	C	408	412	anti-parallel
Strand 6	C	417	422	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	393	398	first strand
Strand 2	C	425	430	anti-parallel

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There are 8 strands in P sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	282	284	first strand
Strand 2	D	249	251	parallel
Strand 3	D	227	230	parallel
Strand 4	D	193	197	parallel
Strand 5	D	122	128	parallel
Strand 6	D	62	65	parallel
Strand 7	D	27	30	parallel
Strand 8	D	328	330	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	D	131	132	first strand
Strand 2	D	165	166	anti-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	D	292	293	first strand
Strand 2	D	305	306	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	358	366	first strand
Strand 2	D	369	375	anti-parallel
Strand 3	D	381	387	anti-parallel
Strand 4	D	435	442	anti-parallel
Strand 5	D	408	412	anti-parallel
Strand 6	D	417	422	anti-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	D	393	398	first strand
Strand 2	D	425	430	anti-parallel

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There are 8 strands in U sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	282	284	first strand
Strand 2	E	249	251	parallel
Strand 3	E	227	230	parallel
Strand 4	E	193	197	parallel
Strand 5	E	122	128	parallel
Strand 6	E	62	65	parallel
Strand 7	E	27	30	parallel
Strand 8	E	328	330	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	E	131	132	first strand
Strand 2	E	165	166	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	292	293	first strand
Strand 2	E	305	306	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	358	366	first strand
Strand 2	E	369	375	anti-parallel
Strand 3	E	381	387	anti-parallel
Strand 4	E	435	442	anti-parallel
Strand 5	E	408	412	anti-parallel
Strand 6	E	417	422	anti-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	E	393	398	first strand
Strand 2	E	425	430	anti-parallel

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There are 8 strands in Z sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	282	284	first strand
Strand 2	F	249	251	parallel
Strand 3	F	227	230	parallel
Strand 4	F	193	197	parallel
Strand 5	F	122	128	parallel
Strand 6	F	62	65	parallel
Strand 7	F	27	30	parallel
Strand 8	F	328	330	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	F	131	132	first strand
Strand 2	F	165	166	anti-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	F	292	293	first strand
Strand 2	F	305	306	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	358	366	first strand
Strand 2	F	369	375	anti-parallel
Strand 3	F	381	387	anti-parallel
Strand 4	F	435	442	anti-parallel
Strand 5	F	408	412	anti-parallel
Strand 6	F	417	422	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	393	398	first strand
Strand 2	F	425	430	anti-parallel

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There are 8 strands in AE sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	282	284	first strand
Strand 2	G	249	251	parallel
Strand 3	G	227	230	parallel
Strand 4	G	193	197	parallel
Strand 5	G	122	128	parallel
Strand 6	G	62	65	parallel
Strand 7	G	27	30	parallel
Strand 8	G	328	330	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	131	132	first strand
Strand 2	G	165	166	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	292	293	first strand
Strand 2	G	305	306	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	358	366	first strand
Strand 2	G	369	375	anti-parallel
Strand 3	G	381	387	anti-parallel
Strand 4	G	434	442	anti-parallel
Strand 5	G	408	412	anti-parallel
Strand 6	G	417	422	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	393	398	first strand
Strand 2	G	425	430	anti-parallel

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There are 8 strands in AJ sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	282	284	first strand
Strand 2	H	249	251	parallel
Strand 3	H	227	230	parallel
Strand 4	H	193	197	parallel
Strand 5	H	122	128	parallel
Strand 6	H	62	65	parallel
Strand 7	H	27	30	parallel
Strand 8	H	328	330	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	131	132	first strand
Strand 2	H	165	166	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	292	293	first strand
Strand 2	H	305	306	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	358	366	first strand
Strand 2	H	369	375	anti-parallel
Strand 3	H	381	387	anti-parallel
Strand 4	H	435	442	anti-parallel
Strand 5	H	408	412	anti-parallel
Strand 6	H	417	422	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	393	398	first strand
Strand 2	H	425	430	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: 4NXK

Analysis of interatomic Contacts of Structural Units in PDB entry:
4NXK