Analysis of interatomic Contacts of Structural Units in PDB entry:
4NCA

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 4NCA entry

There are 8 chains in PDB entry 4NCA (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	HIS 3	VAL 685
B	LEU 4	VAL 685
C	T 1	T 16
D	T 10	G 19
E	T 1	T 16
F	T 10	G 19
G	A 1	C 6
H	A 4	C 9

There are 41 helices in PDB entry 4NCA. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	41	53	Right-handed alpha
Helix 2	2	A	69	73	Right-handed 310
Helix 3	3	A	102	123	Right-handed alpha
Helix 4	4	A	178	184	Right-handed alpha
Helix 5	5	A	211	215	Right-handed 310
Helix 6	6	A	222	230	Right-handed alpha
Helix 7	7	A	282	301	Right-handed alpha
Helix 8	8	A	329	331	Right-handed 310
Helix 9	9	A	332	337	Right-handed alpha
Helix 10	10	A	358	373	Right-handed alpha
Helix 11	11	A	384	387	Right-handed 310
Helix 12	12	A	388	401	Right-handed alpha
Helix 13	13	A	414	428	Right-handed alpha
Helix 14	14	A	443	458	Right-handed alpha
Helix 15	15	A	515	535	Right-handed alpha
Helix 16	16	A	554	564	Right-handed alpha
Helix 17	17	A	627	639	Right-handed alpha
Helix 18	18	A	640	642	Right-handed 310
Helix 19	19	A	653	670	Right-handed alpha
Helix 20	20	B	20	25	Right-handed alpha
Helix 21	21	B	38	40	Right-handed 310
Helix 22	22	B	41	54	Right-handed alpha
Helix 23	23	B	69	73	Right-handed 310
Helix 24	24	B	102	124	Right-handed alpha
Helix 25	25	B	178	184	Right-handed alpha
Helix 26	26	B	211	215	Right-handed 310
Helix 27	27	B	222	230	Right-handed alpha
Helix 28	28	B	266	270	Right-handed 310
Helix 29	29	B	282	301	Right-handed alpha
Helix 30	30	B	329	331	Right-handed 310
Helix 31	31	B	332	337	Right-handed alpha
Helix 32	32	B	358	373	Right-handed alpha
Helix 33	33	B	384	387	Right-handed 310
Helix 34	34	B	388	402	Right-handed alpha
Helix 35	35	B	414	428	Right-handed alpha
Helix 36	36	B	443	459	Right-handed alpha
Helix 37	37	B	515	535	Right-handed alpha
Helix 38	38	B	554	564	Right-handed alpha
Helix 39	39	B	627	639	Right-handed alpha
Helix 40	40	B	653	670	Right-handed alpha
Helix 41	41	B	671	674	Right-handed 310

There are 12 sheets in PDB entry 4NCA. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

There are 14 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	128	130	first strand
Strand 2	A	133	142	anti-parallel
Strand 3	A	145	157	anti-parallel
Strand 4	A	162	175	anti-parallel
Strand 5	A	6	18	anti-parallel
Strand 6	A	307	315	anti-parallel
Strand 7	A	592	597	anti-parallel
Strand 8	A	600	604	anti-parallel
Strand 9	A	617	623	anti-parallel
Strand 10	A	567	574	anti-parallel
Strand 11	A	540	546	parallel
Strand 12	A	473	480	parallel
Strand 13	A	486	494	anti-parallel
Strand 14	A	507	509	anti-parallel

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There are 11 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	500	503	first strand
Strand 2	A	486	494	anti-parallel
Strand 3	A	473	480	anti-parallel
Strand 4	A	540	546	parallel
Strand 5	A	567	574	parallel
Strand 6	A	617	623	anti-parallel
Strand 7	A	600	604	anti-parallel
Strand 8	A	592	597	anti-parallel
Strand 9	A	307	315	anti-parallel
Strand 10	A	6	18	anti-parallel
Strand 11	A	581	583	anti-parallel

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There are 5 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	57	60	first strand
Strand 2	A	63	66	anti-parallel
Strand 3	A	27	34	anti-parallel
Strand 4	A	84	95	anti-parallel
Strand 5	A	76	81	anti-parallel

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There are 5 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	249	254	first strand
Strand 2	A	244	246	anti-parallel
Strand 3	A	201	204	anti-parallel
Strand 4	A	193	195	anti-parallel
Strand 5	A	261	263	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	320	322	first strand
Strand 2	A	464	466	anti-parallel

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There are 4 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	376	380	first strand
Strand 2	A	344	350	parallel
Strand 3	A	405	410	parallel
Strand 4	A	432	436	parallel

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There are 14 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	128	130	first strand
Strand 2	B	133	142	anti-parallel
Strand 3	B	145	157	anti-parallel
Strand 4	B	162	174	anti-parallel
Strand 5	B	6	18	anti-parallel
Strand 6	B	307	315	anti-parallel
Strand 7	B	592	597	anti-parallel
Strand 8	B	600	604	anti-parallel
Strand 9	B	617	623	anti-parallel
Strand 10	B	567	574	anti-parallel
Strand 11	B	540	546	parallel
Strand 12	B	473	480	parallel
Strand 13	B	486	494	anti-parallel
Strand 14	B	507	509	anti-parallel

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There are 11 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	500	503	first strand
Strand 2	B	486	494	anti-parallel
Strand 3	B	473	480	anti-parallel
Strand 4	B	540	546	parallel
Strand 5	B	567	574	parallel
Strand 6	B	617	623	anti-parallel
Strand 7	B	600	604	anti-parallel
Strand 8	B	592	597	anti-parallel
Strand 9	B	307	315	anti-parallel
Strand 10	B	6	18	anti-parallel
Strand 11	B	581	583	anti-parallel

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There are 5 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	57	60	first strand
Strand 2	B	63	66	anti-parallel
Strand 3	B	27	34	anti-parallel
Strand 4	B	84	95	anti-parallel
Strand 5	B	76	81	anti-parallel

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There are 5 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	254	257	first strand
Strand 2	B	241	245	anti-parallel
Strand 3	B	201	208	anti-parallel
Strand 4	B	192	195	anti-parallel
Strand 5	B	261	263	anti-parallel

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There are 3 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	326	327	first strand
Strand 2	B	321	322	anti-parallel
Strand 3	B	464	465	anti-parallel

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There are 4 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	376	380	first strand
Strand 2	B	344	350	parallel
Strand 3	B	405	410	parallel
Strand 4	B	432	436	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: 4NCA

Analysis of interatomic Contacts of Structural Units in PDB entry:
4NCA