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

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 3PHA entry

There are 2 chains in PDB entry 3PHA (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ALA 0	LYS 663
B	ASN -1	MET 553

There are 86 helices in PDB entry 3PHA. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	139	152	Right-handed alpha
Helix 2	2	A	158	163	Right-handed 310
Helix 3	3	A	173	187	Right-handed alpha
Helix 4	4	A	197	201	Right-handed 310
Helix 5	5	A	216	227	Right-handed alpha
Helix 6	6	A	245	254	Right-handed alpha
Helix 7	7	A	282	292	Right-handed alpha
Helix 8	8	A	293	298	Right-handed alpha
Helix 9	9	A	317	332	Right-handed alpha
Helix 10	10	A	339	350	Right-handed alpha
Helix 11	11	A	355	359	Right-handed 310
Helix 12	12	A	371	375	Right-handed alpha
Helix 13	13	A	377	394	Right-handed alpha
Helix 14	14	A	409	413	Right-handed 310
Helix 15	15	A	425	441	Right-handed alpha
Helix 16	16	A	458	470	Right-handed alpha
Helix 17	17	A	494	521	Right-handed alpha
Helix 18	18	A	528	533	Right-handed alpha
Helix 19	19	A	538	542	Right-handed 310
Helix 20	20	A	621	625	Right-handed 310
Helix 21	21	A	654	658	Right-handed 310
Helix 22	22	B	139	152	Right-handed alpha
Helix 23	23	B	158	162	Right-handed 310
Helix 24	24	B	173	186	Right-handed alpha
Helix 25	25	B	197	201	Right-handed 310
Helix 26	26	B	216	226	Right-handed alpha
Helix 27	27	B	245	254	Right-handed alpha
Helix 28	28	B	282	292	Right-handed alpha
Helix 29	29	B	293	298	Right-handed alpha
Helix 30	30	B	317	333	Right-handed alpha
Helix 31	31	B	339	350	Right-handed alpha
Helix 32	32	B	355	359	Right-handed 310
Helix 33	33	B	372	376	Right-handed 310
Helix 34	34	B	377	394	Right-handed alpha
Helix 35	35	B	409	413	Right-handed 310
Helix 36	36	B	424	441	Right-handed alpha
Helix 37	37	B	458	470	Right-handed alpha
Helix 38	38	B	487	491	Right-handed 310
Helix 39	39	B	494	521	Right-handed alpha
Helix 40	40	B	528	533	Right-handed alpha
Helix 41	41	B	538	542	Right-handed 310
Helix 42	42	B	621	625	Right-handed 310
Helix 43	43	B	654	656	Right-handed 310
Helix 44	44	C	139	151	Right-handed alpha
Helix 45	45	C	158	162	Right-handed 310
Helix 46	46	C	173	186	Right-handed alpha
Helix 47	47	C	197	201	Right-handed 310
Helix 48	48	C	216	227	Right-handed alpha
Helix 49	49	C	245	254	Right-handed alpha
Helix 50	50	C	282	292	Right-handed alpha
Helix 51	51	C	293	298	Right-handed alpha
Helix 52	52	C	317	333	Right-handed alpha
Helix 53	53	C	339	350	Right-handed alpha
Helix 54	54	C	355	359	Right-handed 310
Helix 55	55	C	372	376	Right-handed 310
Helix 56	56	C	377	394	Right-handed alpha
Helix 57	57	C	409	413	Right-handed 310
Helix 58	58	C	425	441	Right-handed alpha
Helix 59	59	C	458	470	Right-handed alpha
Helix 60	60	C	487	491	Right-handed 310
Helix 61	61	C	494	520	Right-handed alpha
Helix 62	62	C	528	533	Right-handed alpha
Helix 63	63	C	538	542	Right-handed 310
Helix 64	64	C	621	625	Right-handed 310
Helix 65	65	C	654	656	Right-handed 310
Helix 66	66	D	139	151	Right-handed alpha
Helix 67	67	D	158	163	Right-handed 310
Helix 68	68	D	173	186	Right-handed alpha
Helix 69	69	D	197	201	Right-handed 310
Helix 70	70	D	216	226	Right-handed alpha
Helix 71	71	D	245	254	Right-handed alpha
Helix 72	72	D	282	293	Right-handed alpha
Helix 73	73	D	293	298	Right-handed alpha
Helix 74	74	D	317	333	Right-handed alpha
Helix 75	75	D	339	350	Right-handed alpha
Helix 76	76	D	355	359	Right-handed 310
Helix 77	77	D	372	376	Right-handed 310
Helix 78	78	D	377	394	Right-handed alpha
Helix 79	79	D	409	413	Right-handed 310
Helix 80	80	D	424	441	Right-handed alpha
Helix 81	81	D	458	470	Right-handed alpha
Helix 82	82	D	494	521	Right-handed alpha
Helix 83	83	D	528	533	Right-handed alpha
Helix 84	84	D	538	542	Right-handed 310
Helix 85	85	D	621	625	Right-handed 310
Helix 86	86	D	654	656	Right-handed 310

There are 40 sheets in PDB entry 3PHA. 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, AB, AC, AD, AE, AF, AG, AH, AI, AJ, AK, AL, AM, AN,

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	2	7	first strand
Strand 2	A	130	135	anti-parallel
Strand 3	A	99	104	anti-parallel
Strand 4	A	90	94	anti-parallel
Strand 5	A	49	52	anti-parallel

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There are 5 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	31	33	first strand
Strand 2	A	38	43	anti-parallel
Strand 3	A	120	125	anti-parallel
Strand 4	A	109	113	anti-parallel
Strand 5	A	65	69	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	86	87	first strand
Strand 2	A	406	407	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	446	447	first strand
Strand 2	A	415	417	parallel
Strand 3	A	400	403	parallel
Strand 4	A	303	307	parallel
Strand 5	A	230	236	parallel
Strand 6	A	193	196	parallel
Strand 7	A	165	166	parallel
Strand 8	A	476	477	parallel
Strand 9	A	449	450	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	239	240	first strand
Strand 2	A	273	276	anti-parallel
Strand 3	A	268	270	anti-parallel
Strand 4	A	315	316	anti-parallel

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There are 2 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	361	364	first strand
Strand 2	A	367	370	anti-parallel

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There are 6 strands in G sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	526	527	first strand
Strand 2	A	546	548	anti-parallel
Strand 3	A	552	554	anti-parallel
Strand 4	A	603	608	anti-parallel
Strand 5	A	573	578	anti-parallel
Strand 6	A	584	589	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	A	564	569	first strand
Strand 2	A	592	597	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	A	612	615	first strand
Strand 2	A	631	634	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	A	639	641	first strand
Strand 2	A	660	662	anti-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	B	2	7	first strand
Strand 2	B	130	135	anti-parallel
Strand 3	B	99	104	anti-parallel
Strand 4	B	90	94	anti-parallel
Strand 5	B	49	52	anti-parallel

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There are 5 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	31	33	first strand
Strand 2	B	38	43	anti-parallel
Strand 3	B	120	125	anti-parallel
Strand 4	B	109	113	anti-parallel
Strand 5	B	65	69	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	B	86	87	first strand
Strand 2	B	406	407	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	446	447	first strand
Strand 2	B	415	417	parallel
Strand 3	B	400	403	parallel
Strand 4	B	303	307	parallel
Strand 5	B	230	236	parallel
Strand 6	B	193	196	parallel
Strand 7	B	164	166	parallel
Strand 8	B	475	477	parallel
Strand 9	B	449	450	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	B	239	240	first strand
Strand 2	B	273	276	anti-parallel
Strand 3	B	268	270	anti-parallel
Strand 4	B	315	316	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	B	361	364	first strand
Strand 2	B	367	370	anti-parallel

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There are 6 strands in Q sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	526	527	first strand
Strand 2	B	546	548	anti-parallel
Strand 3	B	552	554	anti-parallel
Strand 4	B	603	608	anti-parallel
Strand 5	B	573	578	anti-parallel
Strand 6	B	584	589	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	B	564	569	first strand
Strand 2	B	592	597	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	B	612	615	first strand
Strand 2	B	631	634	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	B	639	643	first strand
Strand 2	B	658	662	anti-parallel

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There are 5 strands in U sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	1	7	first strand
Strand 2	C	130	136	anti-parallel
Strand 3	C	99	104	anti-parallel
Strand 4	C	90	94	anti-parallel
Strand 5	C	49	52	anti-parallel

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There are 5 strands in V sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	31	33	first strand
Strand 2	C	38	43	anti-parallel
Strand 3	C	120	125	anti-parallel
Strand 4	C	109	113	anti-parallel
Strand 5	C	65	69	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	C	86	87	first strand
Strand 2	C	406	407	parallel

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There are 8 strands in X sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	446	447	first strand
Strand 2	C	415	417	parallel
Strand 3	C	400	403	parallel
Strand 4	C	303	307	parallel
Strand 5	C	230	236	parallel
Strand 6	C	193	196	parallel
Strand 7	C	164	166	parallel
Strand 8	C	475	477	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	239	240	first strand
Strand 2	C	273	276	anti-parallel
Strand 3	C	268	270	anti-parallel
Strand 4	C	315	316	anti-parallel

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There are 2 strands in Z sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	361	364	first strand
Strand 2	C	367	370	anti-parallel

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There are 6 strands in AA sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	526	527	first strand
Strand 2	C	546	548	anti-parallel
Strand 3	C	552	554	anti-parallel
Strand 4	C	603	608	anti-parallel
Strand 5	C	573	578	anti-parallel
Strand 6	C	584	589	anti-parallel

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There are 2 strands in AB sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	564	569	first strand
Strand 2	C	592	597	anti-parallel

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There are 2 strands in AC sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	612	615	first strand
Strand 2	C	631	634	anti-parallel

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There are 2 strands in AD sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	639	643	first strand
Strand 2	C	658	662	anti-parallel

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There are 5 strands in AE sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	2	7	first strand
Strand 2	D	130	135	anti-parallel
Strand 3	D	99	104	anti-parallel
Strand 4	D	90	94	anti-parallel
Strand 5	D	49	52	anti-parallel

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There are 5 strands in AF sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	31	33	first strand
Strand 2	D	38	43	anti-parallel
Strand 3	D	120	125	anti-parallel
Strand 4	D	109	113	anti-parallel
Strand 5	D	65	69	anti-parallel

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There are 2 strands in AG sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	86	87	first strand
Strand 2	D	406	407	parallel

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There are 8 strands in AH sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	446	447	first strand
Strand 2	D	415	417	parallel
Strand 3	D	400	403	parallel
Strand 4	D	303	307	parallel
Strand 5	D	230	236	parallel
Strand 6	D	193	196	parallel
Strand 7	D	165	166	parallel
Strand 8	D	476	477	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	239	240	first strand
Strand 2	D	273	276	anti-parallel
Strand 3	D	268	270	anti-parallel
Strand 4	D	315	316	anti-parallel

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There are 2 strands in AJ sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	361	364	first strand
Strand 2	D	367	370	anti-parallel

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There are 6 strands in AK sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	526	527	first strand
Strand 2	D	546	548	anti-parallel
Strand 3	D	552	554	anti-parallel
Strand 4	D	603	608	anti-parallel
Strand 5	D	573	578	anti-parallel
Strand 6	D	584	589	anti-parallel

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There are 2 strands in AL sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	564	569	first strand
Strand 2	D	592	597	anti-parallel

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There are 2 strands in AM sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	612	615	first strand
Strand 2	D	631	634	anti-parallel

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There are 2 strands in AN sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	639	643	first strand
Strand 2	D	658	662	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: 3PHA

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