Analysis of interatomic Contacts of Structural Units in PDB entry:
3TWA

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 3TWA entry

There are 5 chains in PDB entry 3TWA (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ASN 5	PRO 419
B	ASN 5	PRO 419
C	ASN 5	PRO 419
D	ASN 5	PRO 419
E	ASN 5	PRO 419

There are 90 helices in PDB entry 3TWA. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	43	45	Right-handed 310
Helix 2	2	A	46	57	Right-handed alpha
Helix 3	3	A	57	63	Right-handed alpha
Helix 4	4	A	69	80	Right-handed alpha
Helix 5	5	A	86	109	Right-handed alpha
Helix 6	6	A	111	116	Right-handed alpha
Helix 7	7	A	134	148	Right-handed alpha
Helix 8	8	A	197	217	Right-handed alpha
Helix 9	9	A	231	243	Right-handed alpha
Helix 10	10	A	244	246	Right-handed 310
Helix 11	11	A	255	259	Right-handed 310
Helix 12	12	A	260	269	Right-handed alpha
Helix 13	13	A	281	291	Right-handed alpha
Helix 14	14	A	300	305	Right-handed 310
Helix 15	15	A	306	320	Right-handed alpha
Helix 16	16	A	333	347	Right-handed alpha
Helix 17	17	A	359	366	Right-handed alpha
Helix 18	18	A	390	395	Right-handed alpha
Helix 19	19	B	43	45	Right-handed 310
Helix 20	20	B	46	57	Right-handed alpha
Helix 21	21	B	57	63	Right-handed alpha
Helix 22	22	B	69	79	Right-handed alpha
Helix 23	23	B	86	109	Right-handed alpha
Helix 24	24	B	111	116	Right-handed alpha
Helix 25	25	B	134	148	Right-handed alpha
Helix 26	26	B	197	217	Right-handed alpha
Helix 27	27	B	231	243	Right-handed alpha
Helix 28	28	B	244	246	Right-handed 310
Helix 29	29	B	255	260	Right-handed 310
Helix 30	30	B	261	269	Right-handed alpha
Helix 31	31	B	281	291	Right-handed alpha
Helix 32	32	B	300	305	Right-handed 310
Helix 33	33	B	306	320	Right-handed alpha
Helix 34	34	B	333	347	Right-handed alpha
Helix 35	35	B	359	366	Right-handed alpha
Helix 36	36	B	390	395	Right-handed alpha
Helix 37	37	C	43	45	Right-handed 310
Helix 38	38	C	46	57	Right-handed alpha
Helix 39	39	C	57	63	Right-handed alpha
Helix 40	40	C	69	79	Right-handed alpha
Helix 41	41	C	86	109	Right-handed alpha
Helix 42	42	C	111	116	Right-handed alpha
Helix 43	43	C	134	148	Right-handed alpha
Helix 44	44	C	197	217	Right-handed alpha
Helix 45	45	C	231	243	Right-handed alpha
Helix 46	46	C	244	246	Right-handed 310
Helix 47	47	C	255	260	Right-handed 310
Helix 48	48	C	261	269	Right-handed alpha
Helix 49	49	C	281	291	Right-handed alpha
Helix 50	50	C	300	305	Right-handed 310
Helix 51	51	C	306	320	Right-handed alpha
Helix 52	52	C	333	347	Right-handed alpha
Helix 53	53	C	359	366	Right-handed alpha
Helix 54	54	C	390	395	Right-handed alpha
Helix 55	55	D	43	45	Right-handed 310
Helix 56	56	D	46	57	Right-handed alpha
Helix 57	57	D	57	63	Right-handed alpha
Helix 58	58	D	69	79	Right-handed alpha
Helix 59	59	D	86	109	Right-handed alpha
Helix 60	60	D	111	116	Right-handed alpha
Helix 61	61	D	134	148	Right-handed alpha
Helix 62	62	D	197	217	Right-handed alpha
Helix 63	63	D	231	243	Right-handed alpha
Helix 64	64	D	244	246	Right-handed 310
Helix 65	65	D	255	260	Right-handed 310
Helix 66	66	D	261	269	Right-handed alpha
Helix 67	67	D	281	291	Right-handed alpha
Helix 68	68	D	300	305	Right-handed 310
Helix 69	69	D	306	320	Right-handed alpha
Helix 70	70	D	333	347	Right-handed alpha
Helix 71	71	D	359	366	Right-handed alpha
Helix 72	72	D	390	395	Right-handed alpha
Helix 73	73	E	43	45	Right-handed 310
Helix 74	74	E	46	56	Right-handed alpha
Helix 75	75	E	57	63	Right-handed alpha
Helix 76	76	E	69	79	Right-handed alpha
Helix 77	77	E	86	109	Right-handed alpha
Helix 78	78	E	111	116	Right-handed alpha
Helix 79	79	E	134	148	Right-handed alpha
Helix 80	80	E	197	217	Right-handed alpha
Helix 81	81	E	231	242	Right-handed alpha
Helix 82	82	E	243	246	Right-handed 310
Helix 83	83	E	255	259	Right-handed 310
Helix 84	84	E	260	269	Right-handed alpha
Helix 85	85	E	281	291	Right-handed alpha
Helix 86	86	E	300	305	Right-handed 310
Helix 87	87	E	306	320	Right-handed alpha
Helix 88	88	E	333	347	Right-handed alpha
Helix 89	89	E	359	366	Right-handed alpha
Helix 90	90	E	390	395	Right-handed alpha

There are 20 sheets in PDB entry 3TWA. 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,

There are 3 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	8	16	first strand
Strand 2	A	23	30	anti-parallel
Strand 3	A	36	40	anti-parallel

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There are 8 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	323	324	first strand
Strand 2	A	296	297	parallel
Strand 3	A	273	275	parallel
Strand 4	A	249	251	parallel
Strand 5	A	221	225	parallel
Strand 6	A	152	155	parallel
Strand 7	A	124	130	parallel
Strand 8	A	353	354	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	A	323	324	first strand
Strand 2	A	296	297	parallel
Strand 3	A	273	275	parallel
Strand 4	A	249	251	parallel
Strand 5	A	221	225	parallel
Strand 6	A	152	155	parallel
Strand 7	A	124	130	parallel
Strand 8	A	376	378	anti-parallel
Strand 9	A	371	373	anti-parallel

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There are 3 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	194	195	first strand
Strand 2	A	409	410	parallel
Strand 3	A	416	417	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	8	16	first strand
Strand 2	B	23	30	anti-parallel
Strand 3	B	36	40	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	323	324	first strand
Strand 2	B	296	297	parallel
Strand 3	B	273	275	parallel
Strand 4	B	249	251	parallel
Strand 5	B	221	225	parallel
Strand 6	B	152	155	parallel
Strand 7	B	124	130	parallel
Strand 8	B	353	354	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	B	323	324	first strand
Strand 2	B	296	297	parallel
Strand 3	B	273	275	parallel
Strand 4	B	249	251	parallel
Strand 5	B	221	225	parallel
Strand 6	B	152	155	parallel
Strand 7	B	124	130	parallel
Strand 8	B	376	378	anti-parallel
Strand 9	B	371	373	anti-parallel

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There are 3 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	194	195	first strand
Strand 2	B	409	410	parallel
Strand 3	B	416	417	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	8	16	first strand
Strand 2	C	23	30	anti-parallel
Strand 3	C	36	40	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	323	324	first strand
Strand 2	C	296	297	parallel
Strand 3	C	273	275	parallel
Strand 4	C	249	251	parallel
Strand 5	C	221	225	parallel
Strand 6	C	152	155	parallel
Strand 7	C	124	130	parallel
Strand 8	C	353	354	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	C	323	324	first strand
Strand 2	C	296	297	parallel
Strand 3	C	273	275	parallel
Strand 4	C	249	251	parallel
Strand 5	C	221	225	parallel
Strand 6	C	152	155	parallel
Strand 7	C	124	130	parallel
Strand 8	C	376	378	anti-parallel
Strand 9	C	371	373	anti-parallel

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There are 3 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	194	195	first strand
Strand 2	C	409	410	parallel
Strand 3	C	416	417	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	8	16	first strand
Strand 2	D	23	30	anti-parallel
Strand 3	D	36	40	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	323	324	first strand
Strand 2	D	296	297	parallel
Strand 3	D	273	275	parallel
Strand 4	D	249	251	parallel
Strand 5	D	221	225	parallel
Strand 6	D	152	155	parallel
Strand 7	D	124	130	parallel
Strand 8	D	353	354	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	D	323	324	first strand
Strand 2	D	296	297	parallel
Strand 3	D	273	275	parallel
Strand 4	D	249	251	parallel
Strand 5	D	221	225	parallel
Strand 6	D	152	155	parallel
Strand 7	D	124	130	parallel
Strand 8	D	376	378	anti-parallel
Strand 9	D	371	373	anti-parallel

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There are 3 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	194	195	first strand
Strand 2	D	409	410	parallel
Strand 3	D	416	417	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	8	16	first strand
Strand 2	E	23	30	anti-parallel
Strand 3	E	36	40	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	323	324	first strand
Strand 2	E	296	297	parallel
Strand 3	E	273	275	parallel
Strand 4	E	249	251	parallel
Strand 5	E	221	225	parallel
Strand 6	E	152	155	parallel
Strand 7	E	124	130	parallel
Strand 8	E	353	354	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	E	323	324	first strand
Strand 2	E	296	297	parallel
Strand 3	E	273	275	parallel
Strand 4	E	249	251	parallel
Strand 5	E	221	225	parallel
Strand 6	E	152	155	parallel
Strand 7	E	124	130	parallel
Strand 8	E	376	378	anti-parallel
Strand 9	E	371	373	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	194	195	first strand
Strand 2	E	409	410	parallel
Strand 3	E	416	417	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: 3TWA

Analysis of interatomic Contacts of Structural Units in PDB entry:
3TWA