Analysis of interatomic Contacts of Structural Units in PDB entry:
1NSI

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 1NSI entry

There are 4 chains in PDB entry 1NSI (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ARG 83	GLN 502
B	ARG 83	GLN 502
C	ARG 83	GLN 502
D	ARG 83	GLN 502

There are 77 helices in PDB entry 1NSI. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	100	102	Right-handed 310
Helix 2	2	A	123	125	Right-handed 310
Helix 3	3	A	136	153	Right-handed alpha
Helix 4	4	A	159	176	Right-handed alpha
Helix 5	5	A	183	195	Right-handed alpha
Helix 6	6	A	203	205	Right-handed 310
Helix 7	7	A	220	238	Right-handed alpha
Helix 8	8	A	281	292	Right-handed 310
Helix 9	9	A	323	325	Right-handed 310
Helix 10	10	A	337	342	Right-handed 310
Helix 11	11	A	375	379	Right-handed alpha
Helix 12	12	A	381	384	Right-handed alpha
Helix 13	13	A	392	398	Right-handed alpha
Helix 14	14	A	406	408	Right-handed 310
Helix 15	15	A	410	428	Right-handed alpha
Helix 16	16	A	436	453	Right-handed alpha
Helix 17	17	A	461	464	Right-handed alpha
Helix 18	18	A	470	472	Right-handed 310
Helix 19	19	A	495	498	Right-handed alpha
Helix 20	20	B	100	103	Right-handed 310
Helix 21	21	B	123	125	Right-handed 310
Helix 22	22	B	136	153	Right-handed alpha
Helix 23	23	B	159	176	Right-handed alpha
Helix 24	24	B	183	195	Right-handed alpha
Helix 25	25	B	203	205	Right-handed 310
Helix 26	26	B	220	238	Right-handed alpha
Helix 27	27	B	281	292	Right-handed 310
Helix 28	28	B	323	325	Right-handed 310
Helix 29	29	B	337	342	Right-handed 310
Helix 30	30	B	375	379	Right-handed alpha
Helix 31	31	B	381	384	Right-handed alpha
Helix 32	32	B	392	399	Right-handed alpha
Helix 33	33	B	406	408	Right-handed 310
Helix 34	34	B	410	428	Right-handed alpha
Helix 35	35	B	436	453	Right-handed alpha
Helix 36	36	B	461	464	Right-handed alpha
Helix 37	37	B	470	472	Right-handed 310
Helix 38	38	B	474	477	Right-handed 310
Helix 39	39	B	495	497	Right-handed 310
Helix 40	40	C	100	103	Right-handed 310
Helix 41	41	C	123	125	Right-handed 310
Helix 42	42	C	136	153	Right-handed alpha
Helix 43	43	C	159	176	Right-handed alpha
Helix 44	44	C	183	195	Right-handed alpha
Helix 45	45	C	203	205	Right-handed 310
Helix 46	46	C	220	238	Right-handed alpha
Helix 47	47	C	281	292	Right-handed 310
Helix 48	48	C	323	325	Right-handed 310
Helix 49	49	C	337	342	Right-handed 310
Helix 50	50	C	375	379	Right-handed alpha
Helix 51	51	C	381	384	Right-handed alpha
Helix 52	52	C	392	398	Right-handed alpha
Helix 53	53	C	406	408	Right-handed 310
Helix 54	54	C	410	428	Right-handed alpha
Helix 55	55	C	436	453	Right-handed alpha
Helix 56	56	C	461	464	Right-handed alpha
Helix 57	57	C	470	472	Right-handed 310
Helix 58	58	C	495	497	Right-handed 310
Helix 59	59	D	100	103	Right-handed 310
Helix 60	60	D	123	125	Right-handed 310
Helix 61	61	D	136	152	Right-handed alpha
Helix 62	62	D	159	175	Right-handed alpha
Helix 63	63	D	183	195	Right-handed alpha
Helix 64	64	D	203	205	Right-handed 310
Helix 65	65	D	220	238	Right-handed alpha
Helix 66	66	D	281	292	Right-handed 310
Helix 67	67	D	337	342	Right-handed 310
Helix 68	68	D	375	379	Right-handed alpha
Helix 69	69	D	381	384	Right-handed alpha
Helix 70	70	D	392	398	Right-handed alpha
Helix 71	71	D	406	408	Right-handed 310
Helix 72	72	D	410	428	Right-handed alpha
Helix 73	73	D	436	453	Right-handed alpha
Helix 74	74	D	461	464	Right-handed alpha
Helix 75	75	D	470	472	Right-handed 310
Helix 76	76	D	474	477	Right-handed alpha
Helix 77	77	D	495	497	Right-handed 310

There are 25 sheets in PDB entry 1NSI. 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,

There are 2 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	85	88	first strand
Strand 2	A	95	98	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	210	214	first strand
Strand 2	A	243	247	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	269	271	first strand
Strand 2	A	277	279	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	307	309	first strand
Strand 2	A	317	319	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	328	330	first strand
Strand 2	A	345	347	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	A	488	490	first strand
Strand 2	A	356	359	anti-parallel
Strand 3	A	362	364	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	85	88	first strand
Strand 2	B	95	98	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	210	214	first strand
Strand 2	B	243	247	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	269	271	first strand
Strand 2	B	277	279	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	307	309	first strand
Strand 2	B	317	319	anti-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	B	328	330	first strand
Strand 2	B	345	347	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	B	488	490	first strand
Strand 2	B	356	359	anti-parallel
Strand 3	B	362	364	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	85	88	first strand
Strand 2	C	95	98	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	210	214	first strand
Strand 2	C	243	247	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	269	271	first strand
Strand 2	C	277	279	anti-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	C	307	309	first strand
Strand 2	C	317	319	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	C	328	330	first strand
Strand 2	C	345	347	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	C	350	352	first strand
Strand 2	C	369	371	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	488	490	first strand
Strand 2	C	356	359	anti-parallel
Strand 3	C	362	364	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	85	88	first strand
Strand 2	D	95	98	anti-parallel

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There are 4 strands in U sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	210	214	first strand
Strand 2	D	243	247	parallel
Strand 3	D	367	372	anti-parallel
Strand 4	D	349	352	anti-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	D	269	271	first strand
Strand 2	D	277	279	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	D	307	309	first strand
Strand 2	D	317	319	anti-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	D	328	330	first strand
Strand 2	D	345	347	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	D	356	358	first strand
Strand 2	D	488	490	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: 1NSI

Analysis of interatomic Contacts of Structural Units in PDB entry:
1NSI