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

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 3ISR entry

There are 4 chains in PDB entry 3ISR (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	GLN -3	GLN 282
B	LEU -6	GLN 282
C	SER -2	GLN 282
D	LEU -6	GLN 282

There are 35 helices in PDB entry 3ISR. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	102	107	Right-handed 310
Helix 2	2	A	113	116	Right-handed 310
Helix 3	3	A	117	126	Right-handed alpha
Helix 4	4	A	130	146	Right-handed alpha
Helix 5	5	A	158	166	Right-handed alpha
Helix 6	6	A	169	184	Right-handed alpha
Helix 7	7	A	225	227	Right-handed 310
Helix 8	8	A	237	241	Right-handed 310
Helix 9	9	B	94	98	Right-handed 310
Helix 10	10	B	102	107	Right-handed 310
Helix 11	11	B	113	116	Right-handed 310
Helix 12	12	B	117	126	Right-handed alpha
Helix 13	13	B	130	146	Right-handed alpha
Helix 14	14	B	158	166	Right-handed alpha
Helix 15	15	B	169	184	Right-handed alpha
Helix 16	16	B	225	227	Right-handed 310
Helix 17	17	B	237	241	Right-handed 310
Helix 18	18	C	94	98	Right-handed 310
Helix 19	19	C	102	107	Right-handed 310
Helix 20	20	C	113	116	Right-handed 310
Helix 21	21	C	117	126	Right-handed alpha
Helix 22	22	C	130	146	Right-handed alpha
Helix 23	23	C	158	166	Right-handed alpha
Helix 24	24	C	169	184	Right-handed alpha
Helix 25	25	C	225	227	Right-handed 310
Helix 26	26	C	237	241	Right-handed 310
Helix 27	27	D	94	98	Right-handed 310
Helix 28	28	D	99	107	Right-handed 310
Helix 29	29	D	113	116	Right-handed 310
Helix 30	30	D	117	126	Right-handed alpha
Helix 31	31	D	130	146	Right-handed alpha
Helix 32	32	D	158	166	Right-handed alpha
Helix 33	33	D	169	184	Right-handed alpha
Helix 34	34	D	225	227	Right-handed 310
Helix 35	35	D	237	241	Right-handed 310

There are 20 sheets in PDB entry 3ISR. 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 4 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	32	41	first strand
Strand 2	A	67	85	anti-parallel
Strand 3	A	-2	13	anti-parallel
Strand 4	A	250	261	anti-parallel

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There are 3 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	32	41	first strand
Strand 2	A	67	85	anti-parallel
Strand 3	A	277	280	anti-parallel

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There are 4 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	47	49	first strand
Strand 2	A	58	63	anti-parallel
Strand 3	A	17	21	anti-parallel
Strand 4	A	244	247	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	147	148	first strand
Strand 2	A	167	168	parallel

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There are 4 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	214	218	first strand
Strand 2	A	203	211	anti-parallel
Strand 3	A	188	195	anti-parallel
Strand 4	A	229	235	anti-parallel

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There are 3 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	-5	-3	first strand
Strand 2	B	82	85	anti-parallel
Strand 3	B	277	280	anti-parallel

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There are 4 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	32	41	first strand
Strand 2	B	67	79	anti-parallel
Strand 3	B	1	13	anti-parallel
Strand 4	B	250	261	anti-parallel

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There are 4 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	47	49	first strand
Strand 2	B	58	63	anti-parallel
Strand 3	B	17	21	anti-parallel
Strand 4	B	244	247	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	147	148	first strand
Strand 2	B	167	168	parallel

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There are 4 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	214	218	first strand
Strand 2	B	204	211	anti-parallel
Strand 3	B	188	195	anti-parallel
Strand 4	B	229	235	anti-parallel

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There are 4 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	32	41	first strand
Strand 2	C	67	85	anti-parallel
Strand 3	C	-1	13	anti-parallel
Strand 4	C	250	261	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	32	41	first strand
Strand 2	C	67	85	anti-parallel
Strand 3	C	277	280	anti-parallel

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There are 4 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	47	49	first strand
Strand 2	C	58	63	anti-parallel
Strand 3	C	17	21	anti-parallel
Strand 4	C	244	247	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	147	148	first strand
Strand 2	C	167	168	parallel

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There are 4 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	214	218	first strand
Strand 2	C	204	211	anti-parallel
Strand 3	C	188	195	anti-parallel
Strand 4	C	229	235	anti-parallel

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There are 4 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	32	41	first strand
Strand 2	D	67	85	anti-parallel
Strand 3	D	-4	13	anti-parallel
Strand 4	D	250	261	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	D	32	41	first strand
Strand 2	D	67	85	anti-parallel
Strand 3	D	277	280	anti-parallel

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There are 4 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	47	49	first strand
Strand 2	D	58	63	anti-parallel
Strand 3	D	17	21	anti-parallel
Strand 4	D	244	247	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	147	148	first strand
Strand 2	D	167	168	parallel

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There are 4 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	214	218	first strand
Strand 2	D	204	211	anti-parallel
Strand 3	D	188	195	anti-parallel
Strand 4	D	229	235	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: 3ISR

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