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

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 3ITB entry

There are 6 chains in PDB entry 3ITB (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	THR 5	GLY 352
B	GLU 7	GLY 352
C	VAL 6	GLY 352
D	ALA 2	GLY 352
L	ALA 502	ALA 502
L	LYS 504	LYS 504

There are 50 helices in PDB entry 3ITB. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	38	40	Right-handed 310
Helix 2	2	A	41	56	Right-handed alpha
Helix 3	3	A	68	72	Right-handed 310
Helix 4	4	A	76	80	Right-handed 310
Helix 5	5	A	95	104	Right-handed alpha
Helix 6	6	A	107	120	Right-handed alpha
Helix 7	7	A	121	137	Right-handed alpha
Helix 8	8	A	157	172	Right-handed alpha
Helix 9	9	A	172	179	Right-handed alpha
Helix 10	10	A	195	200	Right-handed 310
Helix 11	11	A	240	258	Right-handed alpha
Helix 12	12	B	38	40	Right-handed 310
Helix 13	13	B	41	56	Right-handed alpha
Helix 14	14	B	68	72	Right-handed 310
Helix 15	15	B	76	80	Right-handed 310
Helix 16	16	B	95	104	Right-handed alpha
Helix 17	17	B	107	120	Right-handed alpha
Helix 18	18	B	121	136	Right-handed alpha
Helix 19	19	B	157	172	Right-handed alpha
Helix 20	20	B	172	179	Right-handed alpha
Helix 21	21	B	195	200	Right-handed 310
Helix 22	22	B	240	258	Right-handed alpha
Helix 23	23	B	300	304	Right-handed 310
Helix 24	24	C	38	40	Right-handed 310
Helix 25	25	C	41	56	Right-handed alpha
Helix 26	26	C	68	72	Right-handed 310
Helix 27	27	C	76	80	Right-handed 310
Helix 28	28	C	95	104	Right-handed alpha
Helix 29	29	C	107	120	Right-handed alpha
Helix 30	30	C	121	137	Right-handed alpha
Helix 31	31	C	157	172	Right-handed alpha
Helix 32	32	C	172	177	Right-handed alpha
Helix 33	33	C	178	181	Right-handed 310
Helix 34	34	C	195	200	Right-handed 310
Helix 35	35	C	240	258	Right-handed alpha
Helix 36	36	C	288	292	Right-handed 310
Helix 37	37	C	300	304	Right-handed 310
Helix 38	38	D	38	40	Right-handed 310
Helix 39	39	D	41	56	Right-handed alpha
Helix 40	40	D	68	72	Right-handed 310
Helix 41	41	D	76	80	Right-handed 310
Helix 42	42	D	95	104	Right-handed alpha
Helix 43	43	D	107	120	Right-handed alpha
Helix 44	44	D	121	136	Right-handed alpha
Helix 45	45	D	157	172	Right-handed alpha
Helix 46	46	D	172	179	Right-handed alpha
Helix 47	47	D	195	200	Right-handed 310
Helix 48	48	D	240	258	Right-handed alpha
Helix 49	49	D	288	292	Right-handed 310
Helix 50	50	D	300	302	Right-handed 310

There are 20 sheets in PDB entry 3ITB. 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 5 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	26	30	first strand
Strand 2	A	15	20	anti-parallel
Strand 3	A	229	238	anti-parallel
Strand 4	A	218	226	anti-parallel
Strand 5	A	204	212	anti-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	64	66	first strand
Strand 2	A	92	94	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	183	186	first strand
Strand 2	A	189	192	anti-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	A	259	262	first strand
Strand 2	A	294	297	anti-parallel

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There are 6 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	304	310	first strand
Strand 2	A	324	332	anti-parallel
Strand 3	A	338	344	anti-parallel
Strand 4	A	283	287	anti-parallel
Strand 5	A	272	277	anti-parallel
Strand 6	A	315	316	parallel

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There are 5 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	26	30	first strand
Strand 2	B	15	20	anti-parallel
Strand 3	B	229	238	anti-parallel
Strand 4	B	218	226	anti-parallel
Strand 5	B	204	212	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	B	64	66	first strand
Strand 2	B	92	94	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	183	186	first strand
Strand 2	B	189	192	anti-parallel

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There are 2 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	259	262	first strand
Strand 2	B	294	297	anti-parallel

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There are 6 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	305	310	first strand
Strand 2	B	324	332	anti-parallel
Strand 3	B	335	344	anti-parallel
Strand 4	B	283	287	anti-parallel
Strand 5	B	272	277	anti-parallel
Strand 6	B	315	316	parallel

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There are 5 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	26	30	first strand
Strand 2	C	15	20	anti-parallel
Strand 3	C	229	238	anti-parallel
Strand 4	C	218	226	anti-parallel
Strand 5	C	204	212	anti-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	64	66	first strand
Strand 2	C	92	94	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	183	186	first strand
Strand 2	C	189	192	anti-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	C	259	262	first strand
Strand 2	C	294	297	anti-parallel

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There are 6 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	305	310	first strand
Strand 2	C	324	332	anti-parallel
Strand 3	C	335	344	anti-parallel
Strand 4	C	283	287	anti-parallel
Strand 5	C	272	277	anti-parallel
Strand 6	C	315	316	parallel

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There are 5 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	26	30	first strand
Strand 2	D	15	20	anti-parallel
Strand 3	D	229	238	anti-parallel
Strand 4	D	218	226	anti-parallel
Strand 5	D	204	212	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	D	64	66	first strand
Strand 2	D	92	94	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	183	186	first strand
Strand 2	D	189	192	anti-parallel

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There are 2 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	259	262	first strand
Strand 2	D	294	297	anti-parallel

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There are 6 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	304	310	first strand
Strand 2	D	324	332	anti-parallel
Strand 3	D	335	344	anti-parallel
Strand 4	D	283	287	anti-parallel
Strand 5	D	272	277	anti-parallel
Strand 6	D	315	316	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: 3ITB

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