Analysis of interatomic Contacts of Structural Units in PDB entry:
2REQ

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 2REQ entry

There are 4 chains in PDB entry 2REQ (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	LEU 4	ALA 728
B	THR 17	ALA 637
C	LEU 4	ALA 728
D	THR 17	ALA 637

There are121 helices in PDB entry 2REQ. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	21	32	Right-handed alpha
Helix 2	2	A	52	55	Right-handed 310
Helix 3	3	A	78	81	Right-handed alpha
Helix 4	4	A	95	108	Right-handed alpha
Helix 5	5	A	119	122	Right-handed alpha
Helix 6	6	A	130	135	Right-handed 310
Helix 7	7	A	146	152	Right-handed alpha
Helix 8	8	A	171	185	Right-handed alpha
Helix 9	9	A	189	191	Right-handed 310
Helix 10	10	A	200	205	Right-handed alpha
Helix 11	11	A	214	231	Right-handed alpha
Helix 12	12	A	243	248	Right-handed alpha
Helix 13	13	A	252	273	Right-handed alpha
Helix 14	14	A	277	283	Right-handed alpha
Helix 15	15	A	294	315	Right-handed alpha
Helix 16	16	A	320	323	Right-handed 310
Helix 17	17	A	341	357	Right-handed 310
Helix 18	18	A	377	393	Right-handed alpha
Helix 19	19	A	407	429	Right-handed alpha
Helix 20	20	A	433	439	Right-handed alpha
Helix 21	21	A	441	459	Right-handed alpha
Helix 22	22	A	486	502	Right-handed alpha
Helix 23	23	A	505	520	Right-handed alpha
Helix 24	24	A	527	529	Right-handed 310
Helix 25	25	A	531	541	Right-handed alpha
Helix 26	26	A	545	556	Right-handed alpha
Helix 27	27	A	569	574	Right-handed alpha
Helix 28	28	A	578	594	Right-handed alpha
Helix 29	29	A	612	624	Right-handed alpha
Helix 30	30	A	637	646	Right-handed alpha
Helix 31	31	A	661	675	Right-handed alpha
Helix 32	32	A	690	698	Right-handed 310
Helix 33	33	A	711	726	Right-handed alpha
Helix 34	34	B	24	26	Right-handed 310
Helix 35	35	B	32	44	Right-handed alpha
Helix 36	36	B	55	61	Right-handed alpha
Helix 37	37	B	78	80	Right-handed 310
Helix 38	38	B	118	130	Right-handed alpha
Helix 39	39	B	147	153	Right-handed 310
Helix 40	40	B	172	185	Right-handed alpha
Helix 41	41	B	190	192	Right-handed 310
Helix 42	42	B	201	208	Right-handed alpha
Helix 43	43	B	214	226	Right-handed 310
Helix 44	44	B	239	243	Right-handed alpha
Helix 45	45	B	248	268	Right-handed alpha
Helix 46	46	B	273	279	Right-handed alpha
Helix 47	47	B	290	311	Right-handed alpha
Helix 48	48	B	315	317	Right-handed 310
Helix 49	49	B	328	330	Right-handed 310
Helix 50	50	B	336	353	Right-handed 310
Helix 51	51	B	374	388	Right-handed alpha
Helix 52	52	B	403	425	Right-handed alpha
Helix 53	53	B	429	434	Right-handed alpha
Helix 54	54	B	437	455	Right-handed alpha
Helix 55	55	B	495	506	Right-handed alpha
Helix 56	56	B	521	538	Right-handed alpha
Helix 57	57	B	550	560	Right-handed alpha
Helix 58	58	B	571	587	Right-handed alpha
Helix 59	59	B	606	612	Right-handed alpha
Helix 60	60	B	623	633	Right-handed alpha
Helix 61	61	C	21	32	Right-handed alpha
Helix 62	62	C	52	55	Right-handed 310
Helix 63	63	C	78	80	Right-handed 310
Helix 64	64	C	95	108	Right-handed alpha
Helix 65	65	C	119	122	Right-handed alpha
Helix 66	66	C	130	135	Right-handed 310
Helix 67	67	C	146	153	Right-handed alpha
Helix 68	68	C	171	185	Right-handed alpha
Helix 69	69	C	189	191	Right-handed 310
Helix 70	70	C	200	205	Right-handed alpha
Helix 71	71	C	214	231	Right-handed alpha
Helix 72	72	C	243	248	Right-handed alpha
Helix 73	73	C	252	273	Right-handed alpha
Helix 74	74	C	277	280	Right-handed alpha
Helix 75	75	C	294	315	Right-handed alpha
Helix 76	76	C	320	323	Right-handed 310
Helix 77	77	C	341	358	Right-handed 310
Helix 78	78	C	377	392	Right-handed alpha
Helix 79	79	C	407	429	Right-handed alpha
Helix 80	80	C	433	439	Right-handed alpha
Helix 81	81	C	441	458	Right-handed alpha
Helix 82	82	C	486	502	Right-handed alpha
Helix 83	83	C	505	520	Right-handed alpha
Helix 84	84	C	527	529	Right-handed 310
Helix 85	85	C	531	540	Right-handed alpha
Helix 86	86	C	545	556	Right-handed alpha
Helix 87	87	C	569	574	Right-handed alpha
Helix 88	88	C	578	594	Right-handed alpha
Helix 89	89	C	612	624	Right-handed alpha
Helix 90	90	C	637	647	Right-handed alpha
Helix 91	91	C	661	674	Right-handed alpha
Helix 92	92	C	690	698	Right-handed 310
Helix 93	93	C	711	726	Right-handed alpha
Helix 94	94	D	24	26	Right-handed 310
Helix 95	95	D	32	44	Right-handed alpha
Helix 96	96	D	55	62	Right-handed alpha
Helix 97	97	D	78	80	Right-handed 310
Helix 98	98	D	118	130	Right-handed alpha
Helix 99	99	D	147	153	Right-handed 310
Helix 100	100	D	172	185	Right-handed alpha
Helix 101	101	D	190	192	Right-handed 310
Helix 102	102	D	201	208	Right-handed alpha
Helix 103	103	D	217	225	Right-handed alpha
Helix 104	104	D	239	243	Right-handed alpha
Helix 105	105	D	248	269	Right-handed alpha
Helix 106	106	D	273	279	Right-handed alpha
Helix 107	107	D	290	310	Right-handed alpha
Helix 108	108	D	315	317	Right-handed 310
Helix 109	109	D	328	330	Right-handed 310
Helix 110	110	D	336	353	Right-handed 310
Helix 111	111	D	374	388	Right-handed alpha
Helix 112	112	D	403	425	Right-handed alpha
Helix 113	113	D	429	434	Right-handed alpha
Helix 114	114	D	437	455	Right-handed alpha
Helix 115	115	D	495	506	Right-handed alpha
Helix 116	116	D	521	538	Right-handed alpha
Helix 117	117	D	550	560	Right-handed alpha
Helix 118	118	D	571	587	Right-handed alpha
Helix 119	119	D	599	601	Right-handed 310
Helix 120	120	D	606	612	Right-handed alpha
Helix 121	121	D	623	634	Right-handed alpha

There are 12 sheets in PDB entry 2REQ. 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 3 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	112	115	first strand
Strand 2	A	162	165	parallel
Strand 3	A	193	196	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	286	290	first strand
Strand 2	A	327	331	parallel
Strand 3	A	362	364	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	627	630	first strand
Strand 2	A	599	603	parallel
Strand 3	A	651	656	parallel
Strand 4	A	681	686	parallel
Strand 5	A	704	706	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	110	113	first strand
Strand 2	B	135	139	parallel
Strand 3	B	163	167	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	B	234	237	first strand
Strand 2	B	280	286	parallel
Strand 3	B	322	326	parallel
Strand 4	B	357	359	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	514	517	first strand
Strand 2	B	564	568	parallel
Strand 3	B	592	595	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	112	115	first strand
Strand 2	C	162	165	parallel
Strand 3	C	193	196	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	C	239	241	first strand
Strand 2	C	285	290	parallel
Strand 3	C	327	331	parallel
Strand 4	C	362	364	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	C	627	630	first strand
Strand 2	C	599	603	parallel
Strand 3	C	651	656	parallel
Strand 4	C	681	686	parallel
Strand 5	C	704	706	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	110	113	first strand
Strand 2	D	135	139	parallel
Strand 3	D	163	167	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	D	234	237	first strand
Strand 2	D	280	286	parallel
Strand 3	D	322	326	parallel
Strand 4	D	357	359	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	D	514	517	first strand
Strand 2	D	564	568	parallel
Strand 3	D	592	596	parallel
Strand 4	D	615	617	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: 2REQ

Analysis of interatomic Contacts of Structural Units in PDB entry:
2REQ