Analysis of interatomic Contacts of Structural Units in PDB entry:
4X1Y

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 4X1Y entry

There are 5 chains in PDB entry 4X1Y (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ARG 2	VAL 437
B	GLU 3	ALA 440
C	MET 1	ASP 438
D	ARG 2	ASP 441
E	ILE 9	GLU 141

There are 82 helices in PDB entry 4X1Y. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	10	28	Right-handed alpha
Helix 2	AA2	A	47	51	Right-handed 310
Helix 3	AA3	A	71	79	Right-handed alpha
Helix 4	AA4	A	81	85	Right-handed 310
Helix 5	AA5	A	102	108	Right-handed alpha
Helix 6	AA6	A	109	127	Right-handed alpha
Helix 7	AA7	A	144	161	Right-handed alpha
Helix 8	AA8	A	182	194	Right-handed alpha
Helix 9	AA9	A	206	216	Right-handed alpha
Helix 10	AB1	A	223	244	Right-handed alpha
Helix 11	AB2	A	251	253	Right-handed 310
Helix 12	AB3	A	254	259	Right-handed alpha
Helix 13	AB4	A	287	295	Right-handed alpha
Helix 14	AB5	A	296	301	Right-handed 310
Helix 15	AB6	A	306	310	Right-handed 310
Helix 16	AB7	A	324	339	Right-handed alpha
Helix 17	AB8	A	381	383	Right-handed 310
Helix 18	AB9	A	384	401	Right-handed alpha
Helix 19	AC1	A	404	410	Right-handed alpha
Helix 20	AC2	A	414	436	Right-handed alpha
Helix 21	AC3	B	10	28	Right-handed alpha
Helix 22	AC4	B	41	48	Right-handed alpha
Helix 23	AC5	B	49	51	Right-handed 310
Helix 24	AC6	B	72	81	Right-handed alpha
Helix 25	AC7	B	82	87	Right-handed 310
Helix 26	AC8	B	88	90	Right-handed 310
Helix 27	AC9	B	102	108	Right-handed alpha
Helix 28	AD1	B	108	128	Right-handed alpha
Helix 29	AD2	B	144	161	Right-handed alpha
Helix 30	AD3	B	182	198	Right-handed alpha
Helix 31	AD4	B	206	216	Right-handed alpha
Helix 32	AD5	B	223	239	Right-handed alpha
Helix 33	AD6	B	239	244	Right-handed alpha
Helix 34	AD7	B	251	260	Right-handed alpha
Helix 35	AD8	B	287	297	Right-handed alpha
Helix 36	AD9	B	298	301	Right-handed 310
Helix 37	AE1	B	306	310	Right-handed 310
Helix 38	AE2	B	324	339	Right-handed alpha
Helix 39	AE3	B	340	343	Right-handed 310
Helix 40	AE4	B	384	401	Right-handed alpha
Helix 41	AE5	B	405	410	Right-handed alpha
Helix 42	AE6	B	414	438	Right-handed alpha
Helix 43	AE7	C	10	28	Right-handed alpha
Helix 44	AE8	C	47	51	Right-handed 310
Helix 45	AE9	C	72	80	Right-handed alpha
Helix 46	AF1	C	88	92	Right-handed 310
Helix 47	AF2	C	102	108	Right-handed alpha
Helix 48	AF3	C	110	113	Right-handed 310
Helix 49	AF4	C	114	128	Right-handed alpha
Helix 50	AF5	C	143	161	Right-handed alpha
Helix 51	AF6	C	182	195	Right-handed alpha
Helix 52	AF7	C	206	216	Right-handed alpha
Helix 53	AF8	C	223	244	Right-handed alpha
Helix 54	AF9	C	253	260	Right-handed alpha
Helix 55	AG1	C	287	295	Right-handed alpha
Helix 56	AG2	C	296	301	Right-handed 310
Helix 57	AG3	C	324	338	Right-handed alpha
Helix 58	AG4	C	384	401	Right-handed alpha
Helix 59	AG5	C	404	410	Right-handed alpha
Helix 60	AG6	C	415	436	Right-handed alpha
Helix 61	AG7	D	10	28	Right-handed alpha
Helix 62	AG8	D	41	48	Right-handed alpha
Helix 63	AG9	D	49	51	Right-handed 310
Helix 64	AH1	D	72	81	Right-handed alpha
Helix 65	AH2	D	83	87	Right-handed 310
Helix 66	AH3	D	102	108	Right-handed alpha
Helix 67	AH4	D	109	129	Right-handed alpha
Helix 68	AH5	D	147	161	Right-handed alpha
Helix 69	AH6	D	182	198	Right-handed alpha
Helix 70	AH7	D	206	216	Right-handed alpha
Helix 71	AH8	D	223	239	Right-handed alpha
Helix 72	AH9	D	239	244	Right-handed alpha
Helix 73	AI1	D	251	260	Right-handed alpha
Helix 74	AI2	D	287	296	Right-handed alpha
Helix 75	AI3	D	297	301	Right-handed 310
Helix 76	AI4	D	306	310	Right-handed 310
Helix 77	AI5	D	324	339	Right-handed alpha
Helix 78	AI6	D	340	343	Right-handed 310
Helix 79	AI7	D	384	401	Right-handed alpha
Helix 80	AI8	D	404	412	Right-handed 310
Helix 81	AI9	D	414	438	Right-handed alpha
Helix 82	AJ1	E	46	140	Right-handed alpha

There are 10 sheets in PDB entry 4X1Y. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1,

There are 6 strands in AA1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	92	94	first strand
Strand 2	A	65	69	parallel
Strand 3	A	3	9	parallel
Strand 4	A	132	140	parallel
Strand 5	A	165	172	parallel
Strand 6	A	200	205	parallel

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There are 2 strands in AA2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	53	55	first strand
Strand 2	A	61	63	anti-parallel

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There are 6 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	269	273	first strand
Strand 2	A	373	379	anti-parallel
Strand 3	A	316	321	anti-parallel
Strand 4	A	349	356	parallel
Strand 5	E	17	25	anti-parallel
Strand 6	E	12	14	anti-parallel

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There are 10 strands in AA4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	92	94	first strand
Strand 2	B	65	69	parallel
Strand 3	B	4	9	parallel
Strand 4	B	134	140	parallel
Strand 5	B	165	172	parallel
Strand 6	B	200	205	parallel
Strand 7	B	267	270	parallel
Strand 8	B	375	381	anti-parallel
Strand 9	B	312	320	anti-parallel
Strand 10	B	351	356	parallel

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There are 2 strands in AA5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	53	54	first strand
Strand 2	B	62	63	anti-parallel

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There are 5 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	65	68	first strand
Strand 2	C	3	9	parallel
Strand 3	C	132	140	parallel
Strand 4	C	165	172	parallel
Strand 5	C	200	205	parallel

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There are 2 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	53	55	first strand
Strand 2	C	61	63	anti-parallel

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There are 3 strands in AA8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	352	356	first strand
Strand 2	C	312	320	parallel
Strand 3	C	374	381	anti-parallel

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There are 10 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	92	94	first strand
Strand 2	D	65	69	parallel
Strand 3	D	3	9	parallel
Strand 4	D	132	140	parallel
Strand 5	D	165	172	parallel
Strand 6	D	200	205	parallel
Strand 7	D	267	273	parallel
Strand 8	D	374	381	anti-parallel
Strand 9	D	312	320	anti-parallel
Strand 10	D	351	356	parallel

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There are 2 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	53	55	first strand
Strand 2	D	61	63	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: 4X1Y

Analysis of interatomic Contacts of Structural Units in PDB entry:
4X1Y