Analysis of interatomic Contacts of Structural Units in PDB entry:
3S1A

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 3S1A entry

Note, this PDB entry contains modified residue(s) PHOSPHOSERINE (SEP) . This residue is treated as heterogroup (ligand) both in the PDB entry and in LPC/CSU analysis.

There are 8 chains in PDB entry 3S1A (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	GLU 14	GLU 319
A	ARG 321	SER 519
B	GLU 14	GLU 504
C	GLU 14	GLU 501
D	GLU 14	THR 498
E	GLU 14	LEU 505
F	GLU 14	GLU 319
F	ARG 321	SER 519

There are 99 helices in PDB entry 3S1A. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	27	32	Right-handed alpha
Helix 2	2	A	51	68	Right-handed alpha
Helix 3	3	A	79	89	Right-handed alpha
Helix 4	4	A	93	100	Right-handed alpha
Helix 5	5	A	120	138	Right-handed alpha
Helix 6	6	A	147	152	Right-handed alpha
Helix 7	7	A	156	175	Right-handed alpha
Helix 8	8	A	196	201	Right-handed alpha
Helix 9	9	A	267	273	Right-handed alpha
Helix 10	10	A	274	276	Right-handed 310
Helix 11	11	A	293	304	Right-handed alpha
Helix 12	12	A	321	330	Right-handed alpha
Helix 13	13	A	334	341	Right-handed alpha
Helix 14	14	A	350	354	Right-handed 310
Helix 15	15	A	355	371	Right-handed alpha
Helix 16	16	A	388	405	Right-handed alpha
Helix 17	17	B	27	32	Right-handed alpha
Helix 18	18	B	51	68	Right-handed alpha
Helix 19	19	B	79	88	Right-handed alpha
Helix 20	20	B	89	91	Right-handed 310
Helix 21	21	B	93	100	Right-handed alpha
Helix 22	22	B	118	137	Right-handed alpha
Helix 23	23	B	147	152	Right-handed alpha
Helix 24	24	B	156	175	Right-handed alpha
Helix 25	25	B	196	201	Right-handed alpha
Helix 26	26	B	267	274	Right-handed alpha
Helix 27	27	B	293	304	Right-handed alpha
Helix 28	28	B	320	330	Right-handed alpha
Helix 29	29	B	336	341	Right-handed alpha
Helix 30	30	B	350	354	Right-handed 310
Helix 31	31	B	355	369	Right-handed alpha
Helix 32	32	B	388	405	Right-handed alpha
Helix 33	33	B	430	434	Right-handed 310
Helix 34	34	C	27	33	Right-handed alpha
Helix 35	35	C	51	68	Right-handed alpha
Helix 36	36	C	79	88	Right-handed alpha
Helix 37	37	C	89	91	Right-handed 310
Helix 38	38	C	93	100	Right-handed alpha
Helix 39	39	C	123	138	Right-handed alpha
Helix 40	40	C	147	152	Right-handed alpha
Helix 41	41	C	156	174	Right-handed alpha
Helix 42	42	C	196	201	Right-handed alpha
Helix 43	43	C	267	274	Right-handed alpha
Helix 44	44	C	293	304	Right-handed alpha
Helix 45	45	C	320	330	Right-handed alpha
Helix 46	46	C	334	341	Right-handed alpha
Helix 47	47	C	355	371	Right-handed alpha
Helix 48	48	C	379	384	Right-handed alpha
Helix 49	49	C	388	405	Right-handed alpha
Helix 50	50	D	27	32	Right-handed alpha
Helix 51	51	D	51	68	Right-handed alpha
Helix 52	52	D	79	88	Right-handed alpha
Helix 53	53	D	89	91	Right-handed 310
Helix 54	54	D	93	100	Right-handed alpha
Helix 55	55	D	123	138	Right-handed alpha
Helix 56	56	D	147	152	Right-handed alpha
Helix 57	57	D	156	175	Right-handed alpha
Helix 58	58	D	196	201	Right-handed alpha
Helix 59	59	D	267	274	Right-handed alpha
Helix 60	60	D	293	308	Right-handed alpha
Helix 61	61	D	320	330	Right-handed alpha
Helix 62	62	D	334	341	Right-handed alpha
Helix 63	63	D	355	371	Right-handed alpha
Helix 64	64	D	379	384	Right-handed alpha
Helix 65	65	D	388	406	Right-handed alpha
Helix 66	66	D	430	434	Right-handed 310
Helix 67	67	E	27	32	Right-handed alpha
Helix 68	68	E	51	68	Right-handed alpha
Helix 69	69	E	79	88	Right-handed alpha
Helix 70	70	E	89	91	Right-handed 310
Helix 71	71	E	93	100	Right-handed alpha
Helix 72	72	E	119	138	Right-handed alpha
Helix 73	73	E	146	150	Right-handed 310
Helix 74	74	E	156	175	Right-handed alpha
Helix 75	75	E	196	201	Right-handed alpha
Helix 76	76	E	267	274	Right-handed alpha
Helix 77	77	E	293	304	Right-handed alpha
Helix 78	78	E	322	330	Right-handed alpha
Helix 79	79	E	334	341	Right-handed alpha
Helix 80	80	E	355	371	Right-handed alpha
Helix 81	81	E	388	406	Right-handed alpha
Helix 82	82	E	430	434	Right-handed 310
Helix 83	83	F	27	32	Right-handed alpha
Helix 84	84	F	51	68	Right-handed alpha
Helix 85	85	F	79	88	Right-handed alpha
Helix 86	86	F	89	91	Right-handed 310
Helix 87	87	F	93	100	Right-handed alpha
Helix 88	88	F	121	138	Right-handed alpha
Helix 89	89	F	147	152	Right-handed alpha
Helix 90	90	F	156	175	Right-handed alpha
Helix 91	91	F	196	201	Right-handed alpha
Helix 92	92	F	267	274	Right-handed alpha
Helix 93	93	F	293	308	Right-handed alpha
Helix 94	94	F	320	330	Right-handed alpha
Helix 95	95	F	334	341	Right-handed alpha
Helix 96	96	F	350	354	Right-handed 310
Helix 97	97	F	355	370	Right-handed alpha
Helix 98	98	F	379	384	Right-handed alpha
Helix 99	99	F	388	405	Right-handed alpha

There are 27 sheets in PDB entry 3S1A. 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,

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	20	21	first strand
Strand 2	A	36	37	anti-parallel

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There are 9 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	103	107	first strand
Strand 2	A	71	75	parallel
Strand 3	A	141	145	parallel
Strand 4	A	177	183	parallel
Strand 5	A	41	46	parallel
Strand 6	A	203	212	parallel
Strand 7	A	215	225	anti-parallel
Strand 8	A	234	240	anti-parallel
Strand 9	A	243	246	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	262	263	first strand
Strand 2	A	278	279	anti-parallel

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There are 9 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	344	346	first strand
Strand 2	A	312	316	parallel
Strand 3	A	374	378	parallel
Strand 4	A	409	415	parallel
Strand 5	A	283	288	parallel
Strand 6	A	436	444	parallel
Strand 7	A	449	458	anti-parallel
Strand 8	A	468	473	anti-parallel
Strand 9	A	476	482	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	486	487	first strand
Strand 2	A	495	496	anti-parallel

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There are 9 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	103	105	first strand
Strand 2	B	71	75	parallel
Strand 3	B	141	145	parallel
Strand 4	B	177	184	parallel
Strand 5	B	41	47	parallel
Strand 6	B	203	210	parallel
Strand 7	B	217	225	anti-parallel
Strand 8	B	234	240	anti-parallel
Strand 9	B	243	246	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	262	263	first strand
Strand 2	B	278	279	anti-parallel

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There are 7 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	344	346	first strand
Strand 2	B	312	316	parallel
Strand 3	B	374	378	parallel
Strand 4	B	409	414	parallel
Strand 5	B	283	288	parallel
Strand 6	B	436	440	parallel
Strand 7	B	453	458	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	443	444	first strand
Strand 2	B	449	450	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	468	473	first strand
Strand 2	B	476	482	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	486	487	first strand
Strand 2	B	495	496	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	20	21	first strand
Strand 2	C	36	37	anti-parallel

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There are 9 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	103	107	first strand
Strand 2	C	71	75	parallel
Strand 3	C	141	145	parallel
Strand 4	C	177	182	parallel
Strand 5	C	41	45	parallel
Strand 6	C	203	210	parallel
Strand 7	C	217	225	anti-parallel
Strand 8	C	234	240	anti-parallel
Strand 9	C	243	246	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	262	263	first strand
Strand 2	C	278	279	anti-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	C	344	346	first strand
Strand 2	C	312	316	parallel
Strand 3	C	374	378	parallel
Strand 4	C	409	415	parallel
Strand 5	C	283	288	parallel
Strand 6	C	436	445	parallel
Strand 7	C	448	457	anti-parallel
Strand 8	C	467	473	anti-parallel
Strand 9	C	476	482	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	486	487	first strand
Strand 2	C	495	496	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	20	21	first strand
Strand 2	D	36	37	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	D	103	107	first strand
Strand 2	D	71	75	parallel
Strand 3	D	141	145	parallel
Strand 4	D	177	183	parallel
Strand 5	D	41	46	parallel
Strand 6	D	203	210	parallel
Strand 7	D	217	225	anti-parallel
Strand 8	D	234	237	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	262	263	first strand
Strand 2	D	278	279	anti-parallel

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There are 9 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	344	346	first strand
Strand 2	D	312	316	parallel
Strand 3	D	374	378	parallel
Strand 4	D	409	415	parallel
Strand 5	D	283	288	parallel
Strand 6	D	436	444	parallel
Strand 7	D	449	458	anti-parallel
Strand 8	D	468	473	anti-parallel
Strand 9	D	476	482	anti-parallel

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There are 2 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	20	21	first strand
Strand 2	E	36	37	anti-parallel

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There are 9 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	103	107	first strand
Strand 2	E	71	75	parallel
Strand 3	E	141	145	parallel
Strand 4	E	177	183	parallel
Strand 5	E	41	46	parallel
Strand 6	E	203	210	parallel
Strand 7	E	217	225	anti-parallel
Strand 8	E	234	240	anti-parallel
Strand 9	E	243	246	anti-parallel

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There are 9 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	344	346	first strand
Strand 2	E	312	316	parallel
Strand 3	E	374	378	parallel
Strand 4	E	409	415	parallel
Strand 5	E	283	288	parallel
Strand 6	E	436	444	parallel
Strand 7	E	449	458	anti-parallel
Strand 8	E	468	472	anti-parallel
Strand 9	E	477	479	anti-parallel

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There are 9 strands in X sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	103	107	first strand
Strand 2	F	71	75	parallel
Strand 3	F	141	145	parallel
Strand 4	F	177	183	parallel
Strand 5	F	41	46	parallel
Strand 6	F	203	210	parallel
Strand 7	F	217	225	anti-parallel
Strand 8	F	235	240	anti-parallel
Strand 9	F	243	246	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	F	262	263	first strand
Strand 2	F	278	279	anti-parallel

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There are 9 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	344	346	first strand
Strand 2	F	312	316	parallel
Strand 3	F	374	378	parallel
Strand 4	F	409	415	parallel
Strand 5	F	283	288	parallel
Strand 6	F	436	444	parallel
Strand 7	F	449	458	anti-parallel
Strand 8	F	469	473	anti-parallel
Strand 9	F	476	479	anti-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	486	487	first strand
Strand 2	F	495	496	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: 3S1A

Analysis of interatomic Contacts of Structural Units in PDB entry:
3S1A