Analysis of interatomic Contacts of Structural Units in PDB entry:
1SMR

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 1SMR entry

There are 12 chains in PDB entry 1SMR (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	THR -2	ARG 326
B	HIS 2	HIS 5
B	TYR 7	SER 9
C	THR -2	ARG 326
D	HIS 2	HIS 5
D	TYR 7	SER 9
E	THR -2	ARG 326
F	HIS 2	HIS 5
F	TYR 7	SER 9
G	THR -2	ARG 326
H	HIS 2	HIS 5
H	TYR 7	SER 9

There are 44 helices in PDB entry 1SMR. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	HN2	A	108	113	Right-handed alpha
Helix 2	H'N	A	135	143	Right-handed alpha
Helix 3	HC	A	224	236	Right-handed alpha
Helix 4	HC3	A	270	275	Right-handed alpha
Helix 5	H'C	A	302	307	Right-handed alpha
Helix 6	HN	A	47	52	Right-handed 310
Helix 7	HN1	A	57	61	Right-handed 310
Helix 8	H2	A	125	129	Right-handed 310
Helix 9	H3	A	130	133	Right-handed 310
Helix 10	H4	A	171	173	Right-handed 310
Helix 11	HC2	A	250	255	Right-handed 310
Helix 12	HN2	C	108	113	Right-handed alpha
Helix 13	H'N	C	135	143	Right-handed alpha
Helix 14	HC	C	224	236	Right-handed alpha
Helix 15	HC3	C	270	275	Right-handed alpha
Helix 16	H'C	C	302	307	Right-handed alpha
Helix 17	HN	C	47	52	Right-handed 310
Helix 18	HN1	C	57	61	Right-handed 310
Helix 19	H2	C	125	129	Right-handed 310
Helix 20	H3	C	130	133	Right-handed 310
Helix 21	H4	C	171	173	Right-handed 310
Helix 22	HC2	C	250	255	Right-handed 310
Helix 23	HN2	E	108	113	Right-handed alpha
Helix 24	H'N	E	135	143	Right-handed alpha
Helix 25	HC	E	224	236	Right-handed alpha
Helix 26	HC3	E	270	275	Right-handed alpha
Helix 27	H'C	E	302	307	Right-handed alpha
Helix 28	HN	E	47	52	Right-handed 310
Helix 29	HN1	E	57	61	Right-handed 310
Helix 30	H2	E	125	129	Right-handed 310
Helix 31	H3	E	130	133	Right-handed 310
Helix 32	H4	E	171	173	Right-handed 310
Helix 33	HC2	E	250	255	Right-handed 310
Helix 34	HN2	G	108	113	Right-handed alpha
Helix 35	H'N	G	135	143	Right-handed alpha
Helix 36	HC	G	224	236	Right-handed alpha
Helix 37	HC3	G	270	275	Right-handed alpha
Helix 38	H'C	G	302	307	Right-handed alpha
Helix 39	HN	G	47	52	Right-handed 310
Helix 40	HN1	G	57	61	Right-handed 310
Helix 41	H2	G	125	129	Right-handed 310
Helix 42	H3	G	130	133	Right-handed 310
Helix 43	H4	G	171	173	Right-handed 310
Helix 44	HC2	G	250	255	Right-handed 310

There are 20 sheets in PDB entry 1SMR. Click on sheet of interest to get list of strands forming it: S1, 1N, 1C, 2N, 2C, S3, 3N, 3C, 4N, 4C, S5, 5N, 5C, 6N, 6C, S7, 7N, 7C, 8N, 8C,

There are 6 strands in S1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	2	6	first strand
Strand 2	A	163	168	anti-parallel
Strand 3	A	149	156	anti-parallel
Strand 4	A	311	316	anti-parallel
Strand 5	A	319	325	anti-parallel
Strand 6	A	180	184	anti-parallel

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There are 8 strands in 1N sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	7	9	first strand
Strand 2	A	13	16	anti-parallel
Strand 3	A	29	32	anti-parallel
Strand 4	A	119	123	parallel
Strand 5	A	37	42	anti-parallel
Strand 6	A	99	106	parallel
Strand 7	A	78	87	anti-parallel
Strand 8	A	65	75	anti-parallel

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There are 7 strands in 1C sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	190	194	first strand
Strand 2	A	210	215	anti-parallel
Strand 3	A	299	301	anti-parallel
Strand 4	A	221	223	anti-parallel
Strand 5	A	284	289	parallel
Strand 6	A	244	249	anti-parallel
Strand 7	A	238	241	anti-parallel

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There are 4 strands in 2N sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	25	28	first strand
Strand 2	A	17	21	anti-parallel
Strand 3	A	88	91	anti-parallel
Strand 4	A	94	97	anti-parallel

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There are 4 strands in 2C sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	202	205	first strand
Strand 2	A	197	200	anti-parallel
Strand 3	A	258	263	anti-parallel
Strand 4	A	265	269	anti-parallel

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There are 6 strands in S3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	2	6	first strand
Strand 2	C	163	168	anti-parallel
Strand 3	C	149	156	anti-parallel
Strand 4	C	311	316	anti-parallel
Strand 5	C	319	325	anti-parallel
Strand 6	C	180	184	anti-parallel

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There are 8 strands in 3N sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	7	9	first strand
Strand 2	C	13	16	anti-parallel
Strand 3	C	29	32	anti-parallel
Strand 4	C	119	123	parallel
Strand 5	C	37	42	anti-parallel
Strand 6	C	99	106	parallel
Strand 7	C	78	87	anti-parallel
Strand 8	C	65	75	anti-parallel

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There are 7 strands in 3C sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	190	194	first strand
Strand 2	C	210	215	anti-parallel
Strand 3	C	299	301	anti-parallel
Strand 4	C	221	223	anti-parallel
Strand 5	C	284	289	parallel
Strand 6	C	244	249	anti-parallel
Strand 7	C	238	241	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	25	28	first strand
Strand 2	C	17	21	anti-parallel
Strand 3	C	88	91	anti-parallel
Strand 4	C	94	97	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	202	205	first strand
Strand 2	C	197	200	anti-parallel
Strand 3	C	258	263	anti-parallel
Strand 4	C	265	269	anti-parallel

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There are 6 strands in S5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	2	6	first strand
Strand 2	E	163	168	anti-parallel
Strand 3	E	149	156	anti-parallel
Strand 4	E	311	316	anti-parallel
Strand 5	E	319	325	anti-parallel
Strand 6	E	180	184	anti-parallel

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There are 8 strands in 5N sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	7	9	first strand
Strand 2	E	13	16	anti-parallel
Strand 3	E	29	32	anti-parallel
Strand 4	E	119	123	parallel
Strand 5	E	37	42	anti-parallel
Strand 6	E	99	106	parallel
Strand 7	E	78	87	anti-parallel
Strand 8	E	65	75	anti-parallel

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There are 7 strands in 5C sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	190	194	first strand
Strand 2	E	210	215	anti-parallel
Strand 3	E	299	301	anti-parallel
Strand 4	E	221	223	anti-parallel
Strand 5	E	284	289	parallel
Strand 6	E	244	249	anti-parallel
Strand 7	E	238	241	anti-parallel

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There are 4 strands in 6N sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	25	28	first strand
Strand 2	E	17	21	anti-parallel
Strand 3	E	88	91	anti-parallel
Strand 4	E	94	97	anti-parallel

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There are 4 strands in 6C sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	202	205	first strand
Strand 2	E	197	200	anti-parallel
Strand 3	E	258	263	anti-parallel
Strand 4	E	265	269	anti-parallel

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There are 6 strands in S7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	2	6	first strand
Strand 2	G	163	168	anti-parallel
Strand 3	G	149	156	anti-parallel
Strand 4	G	311	316	anti-parallel
Strand 5	G	319	325	anti-parallel
Strand 6	G	180	184	anti-parallel

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There are 8 strands in 7N sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	7	9	first strand
Strand 2	G	13	16	anti-parallel
Strand 3	G	29	32	anti-parallel
Strand 4	G	119	123	parallel
Strand 5	G	37	42	anti-parallel
Strand 6	G	99	106	parallel
Strand 7	G	78	87	anti-parallel
Strand 8	G	65	75	anti-parallel

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There are 7 strands in 7C sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	190	194	first strand
Strand 2	G	210	215	anti-parallel
Strand 3	G	299	301	anti-parallel
Strand 4	G	221	223	anti-parallel
Strand 5	G	284	289	parallel
Strand 6	G	244	249	anti-parallel
Strand 7	G	238	241	anti-parallel

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There are 4 strands in 8N sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	25	28	first strand
Strand 2	G	17	21	anti-parallel
Strand 3	G	88	91	anti-parallel
Strand 4	G	94	97	anti-parallel

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There are 4 strands in 8C sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	202	205	first strand
Strand 2	G	197	200	anti-parallel
Strand 3	G	258	263	anti-parallel
Strand 4	G	265	269	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: 1SMR

Analysis of interatomic Contacts of Structural Units in PDB entry:
1SMR