Analysis of interatomic Contacts of Structural Units in PDB entry:
2A27

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 2A27 entry

There are 8 chains in PDB entry 2A27 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	GLU 2	SER 305
B	GLU 2	ARG 304
C	GLU 2	ARG 304
D	GLU 2	SER 305
E	GLU 2	ARG 304
F	GLU 2	ARG 304
G	GLU 2	ARG 304
H	GLU 2	SER 305

There are109 helices in PDB entry 2A27. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	8	12	Right-handed alpha
Helix 2	2	A	57	71	Right-handed alpha
Helix 3	3	A	100	106	Right-handed alpha
Helix 4	4	A	112	133	Right-handed alpha
Helix 5	5	A	180	184	Right-handed 310
Helix 6	6	A	185	190	Right-handed alpha
Helix 7	7	A	196	213	Right-handed alpha
Helix 8	8	A	221	231	Right-handed alpha
Helix 9	9	A	237	242	Right-handed alpha
Helix 10	10	A	245	256	Right-handed alpha
Helix 11	11	A	265	271	Right-handed alpha
Helix 12	12	A	279	289	Right-handed alpha
Helix 13	13	A	292	303	Right-handed alpha
Helix 14	14	B	8	11	Right-handed 310
Helix 15	15	B	57	69	Right-handed alpha
Helix 16	16	B	100	108	Right-handed alpha
Helix 17	17	B	112	133	Right-handed alpha
Helix 18	18	B	141	143	Right-handed 310
Helix 19	19	B	180	184	Right-handed 310
Helix 20	20	B	185	190	Right-handed alpha
Helix 21	21	B	196	213	Right-handed alpha
Helix 22	22	B	221	232	Right-handed alpha
Helix 23	23	B	237	242	Right-handed alpha
Helix 24	24	B	245	254	Right-handed alpha
Helix 25	25	B	265	272	Right-handed alpha
Helix 26	26	B	279	289	Right-handed alpha
Helix 27	27	B	292	303	Right-handed alpha
Helix 28	28	C	8	12	Right-handed alpha
Helix 29	29	C	57	71	Right-handed alpha
Helix 30	30	C	100	106	Right-handed alpha
Helix 31	31	C	112	133	Right-handed alpha
Helix 32	32	C	141	143	Right-handed 310
Helix 33	33	C	180	184	Right-handed 310
Helix 34	34	C	185	190	Right-handed alpha
Helix 35	35	C	196	213	Right-handed alpha
Helix 36	36	C	221	232	Right-handed alpha
Helix 37	37	C	237	242	Right-handed alpha
Helix 38	38	C	245	256	Right-handed alpha
Helix 39	39	C	265	272	Right-handed alpha
Helix 40	40	C	279	289	Right-handed alpha
Helix 41	41	C	292	302	Right-handed alpha
Helix 42	42	D	8	12	Right-handed alpha
Helix 43	43	D	57	71	Right-handed alpha
Helix 44	44	D	100	108	Right-handed alpha
Helix 45	45	D	112	133	Right-handed alpha
Helix 46	46	D	141	143	Right-handed 310
Helix 47	47	D	180	184	Right-handed 310
Helix 48	48	D	185	190	Right-handed alpha
Helix 49	49	D	196	213	Right-handed alpha
Helix 50	50	D	221	232	Right-handed alpha
Helix 51	51	D	237	242	Right-handed alpha
Helix 52	52	D	245	254	Right-handed alpha
Helix 53	53	D	265	272	Right-handed alpha
Helix 54	54	D	279	289	Right-handed alpha
Helix 55	55	D	292	303	Right-handed alpha
Helix 56	56	E	8	13	Right-handed alpha
Helix 57	57	E	57	71	Right-handed alpha
Helix 58	58	E	100	108	Right-handed alpha
Helix 59	59	E	112	133	Right-handed alpha
Helix 60	60	E	141	143	Right-handed 310
Helix 61	61	E	180	184	Right-handed 310
Helix 62	62	E	185	190	Right-handed alpha
Helix 63	63	E	196	213	Right-handed alpha
Helix 64	64	E	221	232	Right-handed alpha
Helix 65	65	E	237	242	Right-handed alpha
Helix 66	66	E	245	256	Right-handed alpha
Helix 67	67	E	265	272	Right-handed alpha
Helix 68	68	E	279	289	Right-handed alpha
Helix 69	69	E	292	302	Right-handed alpha
Helix 70	70	F	8	13	Right-handed alpha
Helix 71	71	F	57	71	Right-handed alpha
Helix 72	72	F	100	108	Right-handed alpha
Helix 73	73	F	112	133	Right-handed alpha
Helix 74	74	F	141	143	Right-handed 310
Helix 75	75	F	180	184	Right-handed 310
Helix 76	76	F	185	190	Right-handed alpha
Helix 77	77	F	196	213	Right-handed alpha
Helix 78	78	F	221	232	Right-handed alpha
Helix 79	79	F	237	242	Right-handed alpha
Helix 80	80	F	245	256	Right-handed alpha
Helix 81	81	F	265	272	Right-handed alpha
Helix 82	82	F	279	289	Right-handed alpha
Helix 83	83	F	292	303	Right-handed alpha
Helix 84	84	G	8	13	Right-handed alpha
Helix 85	85	G	57	71	Right-handed alpha
Helix 86	86	G	100	107	Right-handed alpha
Helix 87	87	G	112	133	Right-handed alpha
Helix 88	88	G	180	184	Right-handed 310
Helix 89	89	G	185	190	Right-handed alpha
Helix 90	90	G	196	213	Right-handed alpha
Helix 91	91	G	221	232	Right-handed alpha
Helix 92	92	G	237	242	Right-handed alpha
Helix 93	93	G	245	256	Right-handed alpha
Helix 94	94	G	265	272	Right-handed alpha
Helix 95	95	G	279	289	Right-handed alpha
Helix 96	96	G	292	302	Right-handed alpha
Helix 97	97	H	8	13	Right-handed alpha
Helix 98	98	H	57	71	Right-handed alpha
Helix 99	99	H	100	107	Right-handed alpha
Helix 100	100	H	112	133	Right-handed alpha
Helix 101	101	H	180	184	Right-handed 310
Helix 102	102	H	185	190	Right-handed alpha
Helix 103	103	H	196	213	Right-handed alpha
Helix 104	104	H	221	232	Right-handed alpha
Helix 105	105	H	237	242	Right-handed alpha
Helix 106	106	H	245	256	Right-handed alpha
Helix 107	107	H	265	272	Right-handed alpha
Helix 108	108	H	279	289	Right-handed alpha
Helix 109	109	H	292	302	Right-handed alpha

There are 24 sheets in PDB entry 2A27. 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,

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	13	18	first strand
Strand 2	A	25	32	anti-parallel
Strand 3	A	38	45	anti-parallel
Strand 4	A	88	94	anti-parallel
Strand 5	A	79	84	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	135	136	first strand
Strand 2	A	166	167	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	145	147	first strand
Strand 2	A	157	159	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	B	13	18	first strand
Strand 2	B	25	32	anti-parallel
Strand 3	B	38	45	anti-parallel
Strand 4	B	88	94	anti-parallel
Strand 5	B	79	84	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	B	135	136	first strand
Strand 2	B	166	167	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	B	145	147	first strand
Strand 2	B	157	159	anti-parallel

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There are 5 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	13	18	first strand
Strand 2	C	25	32	anti-parallel
Strand 3	C	38	45	anti-parallel
Strand 4	C	88	93	anti-parallel
Strand 5	C	79	84	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	C	135	136	first strand
Strand 2	C	166	167	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	C	145	147	first strand
Strand 2	C	157	159	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	D	13	18	first strand
Strand 2	D	25	32	anti-parallel
Strand 3	D	38	45	anti-parallel
Strand 4	D	88	94	anti-parallel
Strand 5	D	79	84	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	D	135	136	first strand
Strand 2	D	166	167	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	D	145	147	first strand
Strand 2	D	157	159	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	18	21	first strand
Strand 2	E	25	31	anti-parallel
Strand 3	E	38	45	anti-parallel
Strand 4	E	88	94	anti-parallel
Strand 5	E	79	84	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	E	135	136	first strand
Strand 2	E	166	167	anti-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	E	145	147	first strand
Strand 2	E	157	159	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	18	21	first strand
Strand 2	F	25	31	anti-parallel
Strand 3	F	38	45	anti-parallel
Strand 4	F	88	94	anti-parallel
Strand 5	F	79	84	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	F	135	136	first strand
Strand 2	F	166	167	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	F	145	147	first strand
Strand 2	F	157	159	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	18	21	first strand
Strand 2	G	25	31	anti-parallel
Strand 3	G	38	45	anti-parallel
Strand 4	G	88	94	anti-parallel
Strand 5	G	79	84	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	G	135	136	first strand
Strand 2	G	166	167	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	G	145	147	first strand
Strand 2	G	157	159	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	27	31	first strand
Strand 2	H	38	45	anti-parallel
Strand 3	H	88	94	anti-parallel
Strand 4	H	79	84	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	H	135	136	first strand
Strand 2	H	166	167	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	H	145	147	first strand
Strand 2	H	157	159	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: 2A27

Analysis of interatomic Contacts of Structural Units in PDB entry:
2A27