Analysis of interatomic Contacts of Structural Units in PDB entry:
3QA3

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 3QA3 entry

There are 12 chains in PDB entry 3QA3 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
C	ASP 1	CYS 220
D	GLN 3	CYS 226
G	ASP 132	ALA 318
A	ASP 1	CYS 220
B	GLN 3	CYS 226
E	ASP 132	PHE 317
F	ASP 1	CYS 220
H	GLN 3	CYS 226
I	ASP 132	GLY 316
J	ASP 1	CYS 220
K	GLN 3	CYS 226
L	ASP 132	GLY 316

There are 74 helices in PDB entry 3QA3. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	C	85	89	Right-handed 310
Helix 2	2	C	127	134	Right-handed alpha
Helix 3	3	C	188	195	Right-handed alpha
Helix 4	4	D	30	32	Right-handed 310
Helix 5	5	D	64	67	Right-handed 310
Helix 6	6	D	76	79	Right-handed 310
Helix 7	7	D	89	93	Right-handed 310
Helix 8	8	D	167	169	Right-handed 310
Helix 9	9	D	211	214	Right-handed 310
Helix 10	10	G	146	163	Right-handed alpha
Helix 11	11	G	185	192	Right-handed alpha
Helix 12	12	G	194	200	Right-handed alpha
Helix 13	13	G	210	222	Right-handed alpha
Helix 14	14	G	224	228	Right-handed 310
Helix 15	15	G	251	262	Right-handed alpha
Helix 16	16	G	273	276	Right-handed 310
Helix 17	17	G	277	288	Right-handed alpha
Helix 18	18	G	291	295	Right-handed alpha
Helix 19	19	G	304	309	Right-handed alpha
Helix 20	20	G	312	316	Right-handed 310
Helix 21	21	A	85	89	Right-handed 310
Helix 22	22	A	127	133	Right-handed alpha
Helix 23	23	A	189	194	Right-handed alpha
Helix 24	24	B	30	32	Right-handed 310
Helix 25	25	B	64	67	Right-handed 310
Helix 26	26	B	89	93	Right-handed 310
Helix 27	27	B	167	169	Right-handed 310
Helix 28	28	B	211	213	Right-handed 310
Helix 29	29	E	146	163	Right-handed alpha
Helix 30	30	E	185	192	Right-handed alpha
Helix 31	31	E	194	200	Right-handed alpha
Helix 32	32	E	210	222	Right-handed alpha
Helix 33	33	E	224	228	Right-handed 310
Helix 34	34	E	251	262	Right-handed alpha
Helix 35	35	E	277	288	Right-handed alpha
Helix 36	36	E	291	295	Right-handed alpha
Helix 37	37	E	302	306	Right-handed 310
Helix 38	38	E	309	314	Right-handed alpha
Helix 39	39	F	85	89	Right-handed 310
Helix 40	40	F	127	133	Right-handed alpha
Helix 41	41	F	189	194	Right-handed alpha
Helix 42	42	H	30	32	Right-handed 310
Helix 43	43	H	64	67	Right-handed 310
Helix 44	44	H	89	93	Right-handed 310
Helix 45	45	H	167	169	Right-handed 310
Helix 46	46	H	211	214	Right-handed 310
Helix 47	47	I	146	163	Right-handed alpha
Helix 48	48	I	185	192	Right-handed alpha
Helix 49	49	I	194	200	Right-handed alpha
Helix 50	50	I	210	222	Right-handed alpha
Helix 51	51	I	224	228	Right-handed 310
Helix 52	52	I	251	262	Right-handed alpha
Helix 53	53	I	273	276	Right-handed 310
Helix 54	54	I	277	288	Right-handed alpha
Helix 55	55	I	291	295	Right-handed alpha
Helix 56	56	I	303	309	Right-handed 310
Helix 57	57	J	85	89	Right-handed 310
Helix 58	58	J	127	133	Right-handed alpha
Helix 59	59	J	189	194	Right-handed alpha
Helix 60	60	J	218	220	Right-handed 310
Helix 61	61	K	30	32	Right-handed 310
Helix 62	62	K	64	67	Right-handed 310
Helix 63	63	K	89	93	Right-handed 310
Helix 64	64	K	167	169	Right-handed 310
Helix 65	65	L	146	164	Right-handed alpha
Helix 66	66	L	185	192	Right-handed alpha
Helix 67	67	L	194	200	Right-handed alpha
Helix 68	68	L	210	222	Right-handed alpha
Helix 69	69	L	224	228	Right-handed 310
Helix 70	70	L	251	262	Right-handed alpha
Helix 71	71	L	273	276	Right-handed 310
Helix 72	72	L	278	288	Right-handed alpha
Helix 73	73	L	291	295	Right-handed alpha
Helix 74	74	L	304	310	Right-handed alpha

There are 49 sheets in PDB entry 3QA3. 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, AO, AP, AQ, AR, AS, AT, AU, AV, AW,

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	4	7	first strand
Strand 2	C	19	25	anti-parallel
Strand 3	C	76	81	anti-parallel
Strand 4	C	68	73	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	10	13	first strand
Strand 2	C	108	112	parallel
Strand 3	C	91	96	anti-parallel
Strand 4	C	39	44	anti-parallel
Strand 5	C	51	55	anti-parallel
Strand 6	C	59	60	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	10	13	first strand
Strand 2	C	108	112	parallel
Strand 3	C	91	96	anti-parallel
Strand 4	C	103	104	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	30	31	first strand
Strand 2	C	36	37	anti-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	C	120	124	first strand
Strand 2	C	136	145	anti-parallel
Strand 3	C	179	187	anti-parallel
Strand 4	C	167	169	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	C	159	160	first strand
Strand 2	C	150	156	anti-parallel
Strand 3	C	197	204	anti-parallel
Strand 4	C	211	216	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	6	8	first strand
Strand 2	D	20	26	anti-parallel
Strand 3	D	80	85	anti-parallel
Strand 4	D	70	75	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	12	14	first strand
Strand 2	D	118	122	parallel
Strand 3	D	94	102	anti-parallel
Strand 4	D	34	41	anti-parallel
Strand 5	D	47	53	anti-parallel
Strand 6	D	60	62	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	12	14	first strand
Strand 2	D	118	122	parallel
Strand 3	D	94	102	anti-parallel
Strand 4	D	113	114	anti-parallel

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There are 4 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	131	135	first strand
Strand 2	D	146	156	anti-parallel
Strand 3	D	185	195	anti-parallel
Strand 4	D	174	176	anti-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	131	135	first strand
Strand 2	D	146	156	anti-parallel
Strand 3	D	185	195	anti-parallel
Strand 4	D	180	182	anti-parallel

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There are 3 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	162	165	first strand
Strand 2	D	205	210	anti-parallel
Strand 3	D	215	220	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	180	184	first strand
Strand 2	G	169	176	anti-parallel
Strand 3	G	133	140	parallel
Strand 4	G	234	241	parallel
Strand 5	G	264	271	parallel
Strand 6	G	296	299	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	4	7	first strand
Strand 2	A	19	25	anti-parallel
Strand 3	A	76	81	anti-parallel
Strand 4	A	68	73	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	10	13	first strand
Strand 2	A	108	112	parallel
Strand 3	A	91	96	anti-parallel
Strand 4	A	39	44	anti-parallel
Strand 5	A	51	55	anti-parallel
Strand 6	A	59	60	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	10	13	first strand
Strand 2	A	108	112	parallel
Strand 3	A	91	96	anti-parallel
Strand 4	A	103	104	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	A	30	31	first strand
Strand 2	A	36	37	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	120	124	first strand
Strand 2	A	135	145	anti-parallel
Strand 3	A	179	188	anti-parallel
Strand 4	A	165	169	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	159	160	first strand
Strand 2	A	150	156	anti-parallel
Strand 3	A	197	204	anti-parallel
Strand 4	A	211	216	anti-parallel

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There are 4 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	6	8	first strand
Strand 2	B	20	26	anti-parallel
Strand 3	B	80	85	anti-parallel
Strand 4	B	70	75	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	12	14	first strand
Strand 2	B	118	122	parallel
Strand 3	B	94	102	anti-parallel
Strand 4	B	34	41	anti-parallel
Strand 5	B	47	53	anti-parallel
Strand 6	B	60	62	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	B	12	14	first strand
Strand 2	B	118	122	parallel
Strand 3	B	94	102	anti-parallel
Strand 4	B	111	114	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	131	135	first strand
Strand 2	B	146	156	anti-parallel
Strand 3	B	185	195	anti-parallel
Strand 4	B	174	182	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	162	165	first strand
Strand 2	B	205	210	anti-parallel
Strand 3	B	215	220	anti-parallel
Strand 4	K	215	220	anti-parallel
Strand 5	K	205	210	anti-parallel
Strand 6	K	162	165	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	180	184	first strand
Strand 2	E	169	176	anti-parallel
Strand 3	E	133	140	parallel
Strand 4	E	234	241	parallel
Strand 5	E	264	271	parallel
Strand 6	E	296	299	parallel

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There are 4 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	4	7	first strand
Strand 2	F	19	25	anti-parallel
Strand 3	F	76	81	anti-parallel
Strand 4	F	68	73	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	F	10	13	first strand
Strand 2	F	108	112	parallel
Strand 3	F	91	96	anti-parallel
Strand 4	F	39	44	anti-parallel
Strand 5	F	51	55	anti-parallel
Strand 6	F	59	60	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	10	13	first strand
Strand 2	F	108	112	parallel
Strand 3	F	91	96	anti-parallel
Strand 4	F	103	104	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	F	30	31	first strand
Strand 2	F	36	37	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	120	124	first strand
Strand 2	F	135	145	anti-parallel
Strand 3	F	179	188	anti-parallel
Strand 4	F	165	169	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	159	161	first strand
Strand 2	F	151	156	anti-parallel
Strand 3	F	197	203	anti-parallel
Strand 4	F	211	216	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	6	8	first strand
Strand 2	H	20	26	anti-parallel
Strand 3	H	80	85	anti-parallel
Strand 4	H	70	75	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	12	14	first strand
Strand 2	H	118	122	parallel
Strand 3	H	94	102	anti-parallel
Strand 4	H	34	41	anti-parallel
Strand 5	H	47	53	anti-parallel
Strand 6	H	60	62	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	12	14	first strand
Strand 2	H	118	122	parallel
Strand 3	H	94	102	anti-parallel
Strand 4	H	113	114	anti-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	H	131	135	first strand
Strand 2	H	146	156	anti-parallel
Strand 3	H	185	195	anti-parallel
Strand 4	H	174	176	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	131	135	first strand
Strand 2	H	146	156	anti-parallel
Strand 3	H	185	195	anti-parallel
Strand 4	H	180	182	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	162	165	first strand
Strand 2	H	205	210	anti-parallel
Strand 3	H	215	220	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	180	184	first strand
Strand 2	I	169	176	anti-parallel
Strand 3	I	133	140	parallel
Strand 4	I	234	241	parallel
Strand 5	I	264	271	parallel
Strand 6	I	296	299	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	4	7	first strand
Strand 2	J	19	25	anti-parallel
Strand 3	J	76	81	anti-parallel
Strand 4	J	68	73	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	10	13	first strand
Strand 2	J	108	112	parallel
Strand 3	J	91	96	anti-parallel
Strand 4	J	39	44	anti-parallel
Strand 5	J	51	55	anti-parallel
Strand 6	J	59	60	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	10	13	first strand
Strand 2	J	108	112	parallel
Strand 3	J	91	96	anti-parallel
Strand 4	J	103	104	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	30	31	first strand
Strand 2	J	36	37	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	120	124	first strand
Strand 2	J	135	145	anti-parallel
Strand 3	J	179	188	anti-parallel
Strand 4	J	165	169	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	159	161	first strand
Strand 2	J	150	156	anti-parallel
Strand 3	J	197	204	anti-parallel
Strand 4	J	211	216	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	6	8	first strand
Strand 2	K	20	26	anti-parallel
Strand 3	K	80	85	anti-parallel
Strand 4	K	70	75	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	12	14	first strand
Strand 2	K	118	122	parallel
Strand 3	K	94	102	anti-parallel
Strand 4	K	34	41	anti-parallel
Strand 5	K	47	53	anti-parallel
Strand 6	K	60	62	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	12	14	first strand
Strand 2	K	118	122	parallel
Strand 3	K	94	102	anti-parallel
Strand 4	K	113	114	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	131	135	first strand
Strand 2	K	146	156	anti-parallel
Strand 3	K	185	195	anti-parallel
Strand 4	K	174	182	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	180	184	first strand
Strand 2	L	169	176	anti-parallel
Strand 3	L	133	140	parallel
Strand 4	L	234	241	parallel
Strand 5	L	264	271	parallel
Strand 6	L	296	299	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: 3QA3

Analysis of interatomic Contacts of Structural Units in PDB entry:
3QA3