Analysis of interatomic Contacts of Structural Units in PDB entry:
21KR

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 21KR entry

There are 9 chains in PDB entry 21KR (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	SER 19	LYS 352
B	PRO 630	GLU 1245
C	LEU 33	TYR 151
D	LEU 33	TYR 151
E	SER 19	LYS 352
F	PRO 630	GLU 1245
G	LEU 33	TYR 151
H	LEU 33	TYR 151
I	GLY 1	GLU 107

There are 56 helices in PDB entry 21KR. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	22	34	Right-handed 310
Helix 2	AA2	A	49	59	Right-handed alpha
Helix 3	AA3	A	62	81	Right-handed alpha
Helix 4	AA4	A	98	104	Right-handed 310
Helix 5	AA5	A	106	130	Right-handed alpha
Helix 6	AA6	A	158	171	Right-handed alpha
Helix 7	AA7	A	178	197	Right-handed alpha
Helix 8	AA8	A	207	211	Right-handed 310
Helix 9	AA9	A	223	237	Right-handed alpha
Helix 10	AB1	B	892	897	Right-handed alpha
Helix 11	AB2	B	898	900	Right-handed 310
Helix 12	AB3	B	1198	1204	Right-handed alpha
Helix 13	AB4	B	1209	1214	Right-handed 310
Helix 14	AB5	C	40	44	Right-handed 310
Helix 15	AB6	C	61	70	Right-handed alpha
Helix 16	AB7	C	72	78	Right-handed alpha
Helix 17	AB8	C	81	92	Right-handed alpha
Helix 18	AB9	C	107	116	Right-handed alpha
Helix 19	AC1	C	118	126	Right-handed alpha
Helix 20	AC2	C	130	134	Right-handed 310
Helix 21	AC3	D	41	46	Right-handed 310
Helix 22	AC4	D	61	70	Right-handed alpha
Helix 23	AC5	D	72	78	Right-handed alpha
Helix 24	AC6	D	82	93	Right-handed alpha
Helix 25	AC7	D	107	116	Right-handed alpha
Helix 26	AC8	D	118	123	Right-handed alpha
Helix 27	AC9	D	124	126	Right-handed 310
Helix 28	AD1	E	22	28	Right-handed 310
Helix 29	AD2	E	29	34	Right-handed 310
Helix 30	AD3	E	41	45	Right-handed 310
Helix 31	AD4	E	49	59	Right-handed alpha
Helix 32	AD5	E	62	81	Right-handed alpha
Helix 33	AD6	E	98	104	Right-handed 310
Helix 34	AD7	E	106	130	Right-handed alpha
Helix 35	AD8	E	158	171	Right-handed alpha
Helix 36	AD9	E	178	197	Right-handed alpha
Helix 37	AE1	E	207	211	Right-handed 310
Helix 38	AE2	E	223	237	Right-handed alpha
Helix 39	AE3	E	306	311	Right-handed alpha
Helix 40	AE4	F	891	895	Right-handed 310
Helix 41	AE5	F	896	900	Right-handed 310
Helix 42	AE6	F	1198	1203	Right-handed alpha
Helix 43	AE7	F	1209	1214	Right-handed 310
Helix 44	AE8	G	61	70	Right-handed alpha
Helix 45	AE9	G	72	78	Right-handed alpha
Helix 46	AF1	G	83	93	Right-handed alpha
Helix 47	AF2	G	107	116	Right-handed alpha
Helix 48	AF3	G	118	123	Right-handed alpha
Helix 49	AF4	G	130	134	Right-handed 310
Helix 50	AF5	H	61	70	Right-handed alpha
Helix 51	AF6	H	72	78	Right-handed alpha
Helix 52	AF7	H	81	93	Right-handed alpha
Helix 53	AF8	H	107	123	Right-handed alpha
Helix 54	AF9	H	124	126	Right-handed 310
Helix 55	AG1	I	56	63	Right-handed alpha
Helix 56	AG2	I	64	66	Right-handed 310

There are 44 sheets in PDB entry 21KR. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1, AB2, AB3, AB4, AB5, AB6, AB7, AB8, AB9, AC1, AC2, AC3, AC4, AC5, AC6, AC7, AC8, AC9, AD1, AD2, AD3, AD4, AD5, AD6, AD7, AD8, AD9, AE1, AE2, AE3, AE4, AE5, AE6, AE7, AE8,

There are 2 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	200	206	first strand
Strand 2	A	214	220	anti-parallel

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There are 3 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	251	258	first strand
Strand 2	A	239	248	anti-parallel
Strand 3	A	272	273	parallel

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There are 2 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	283	284	first strand
Strand 2	A	289	290	anti-parallel

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There are 3 strands in AA4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	296	297	first strand
Strand 2	A	336	351	anti-parallel
Strand 3	A	316	332	anti-parallel

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There are 4 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	654	655	first strand
Strand 2	B	641	646	anti-parallel
Strand 3	B	633	638	anti-parallel
Strand 4	B	876	882	anti-parallel

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There are 4 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	664	670	first strand
Strand 2	B	675	680	anti-parallel
Strand 3	B	685	690	anti-parallel
Strand 4	B	697	700	anti-parallel

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There are 4 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	707	713	first strand
Strand 2	B	718	723	anti-parallel
Strand 3	B	728	733	anti-parallel
Strand 4	B	740	743	anti-parallel

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There are 4 strands in AA8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	750	756	first strand
Strand 2	B	761	766	anti-parallel
Strand 3	B	772	777	anti-parallel
Strand 4	B	784	787	anti-parallel

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There are 3 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	793	799	first strand
Strand 2	B	804	809	anti-parallel
Strand 3	B	815	816	anti-parallel

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There are 4 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	835	841	first strand
Strand 2	B	844	849	anti-parallel
Strand 3	B	854	859	anti-parallel
Strand 4	B	867	870	anti-parallel

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There are 2 strands in AB2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	903	907	first strand
Strand 2	B	911	915	anti-parallel

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There are 2 strands in AB3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	921	922	first strand
Strand 2	B	929	930	anti-parallel

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There are 4 strands in AB4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	957	958	first strand
Strand 2	B	944	947	anti-parallel
Strand 3	B	935	940	anti-parallel
Strand 4	B	1188	1194	anti-parallel

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There are 4 strands in AB5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	967	973	first strand
Strand 2	B	978	983	anti-parallel
Strand 3	B	988	993	anti-parallel
Strand 4	B	1000	1003	anti-parallel

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There are 4 strands in AB6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	1016	1022	first strand
Strand 2	B	1027	1032	anti-parallel
Strand 3	B	1037	1042	anti-parallel
Strand 4	B	1052	1053	anti-parallel

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There are 4 strands in AB7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	1063	1065	first strand
Strand 2	B	1070	1077	anti-parallel
Strand 3	B	1080	1087	anti-parallel
Strand 4	B	1094	1097	anti-parallel

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There are 4 strands in AB8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	1104	1110	first strand
Strand 2	B	1115	1120	anti-parallel
Strand 3	B	1125	1130	anti-parallel
Strand 4	B	1137	1140	anti-parallel

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There are 4 strands in AB9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	1147	1153	first strand
Strand 2	B	1156	1161	anti-parallel
Strand 3	B	1166	1171	anti-parallel
Strand 4	B	1179	1183	anti-parallel

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There are 2 strands in AC1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	1217	1220	first strand
Strand 2	B	1226	1229	anti-parallel

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There are 2 strands in AC2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	1235	1236	first strand
Strand 2	B	1243	1244	anti-parallel

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There are 2 strands in AC3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	35	37	first strand
Strand 2	C	50	52	anti-parallel

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There are 2 strands in AC4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	35	37	first strand
Strand 2	D	50	52	anti-parallel

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There are 2 strands in AC5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	200	206	first strand
Strand 2	E	214	220	anti-parallel

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There are 3 strands in AC6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	251	258	first strand
Strand 2	E	239	248	anti-parallel
Strand 3	E	272	273	parallel

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There are 7 strands in AC7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	296	297	first strand
Strand 2	E	336	351	anti-parallel
Strand 3	I	2	8	anti-parallel
Strand 4	I	71	76	anti-parallel
Strand 5	I	97	107	anti-parallel
Strand 6	I	27	30	anti-parallel
Strand 7	I	35	38	anti-parallel

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There are 7 strands in AC8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	316	332	first strand
Strand 2	E	336	351	anti-parallel
Strand 3	I	2	8	anti-parallel
Strand 4	I	71	76	anti-parallel
Strand 5	I	97	107	anti-parallel
Strand 6	I	21	25	anti-parallel
Strand 7	I	46	49	anti-parallel

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There are 4 strands in AC9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	653	655	first strand
Strand 2	F	641	646	anti-parallel
Strand 3	F	633	638	anti-parallel
Strand 4	F	876	882	anti-parallel

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There are 4 strands in AD1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	664	670	first strand
Strand 2	F	675	680	anti-parallel
Strand 3	F	685	690	anti-parallel
Strand 4	F	697	700	anti-parallel

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There are 4 strands in AD2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	707	713	first strand
Strand 2	F	718	723	anti-parallel
Strand 3	F	728	733	anti-parallel
Strand 4	F	740	743	anti-parallel

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There are 4 strands in AD3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	750	756	first strand
Strand 2	F	761	766	anti-parallel
Strand 3	F	772	777	anti-parallel
Strand 4	F	784	787	anti-parallel

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There are 4 strands in AD4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	793	799	first strand
Strand 2	F	804	809	anti-parallel
Strand 3	F	814	818	anti-parallel
Strand 4	F	826	829	anti-parallel

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There are 4 strands in AD5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	835	841	first strand
Strand 2	F	844	849	anti-parallel
Strand 3	F	854	859	anti-parallel
Strand 4	F	867	870	anti-parallel

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There are 2 strands in AD6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	903	907	first strand
Strand 2	F	911	915	anti-parallel

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There are 2 strands in AD7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	921	922	first strand
Strand 2	F	929	930	anti-parallel

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There are 4 strands in AD8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	957	958	first strand
Strand 2	F	943	947	anti-parallel
Strand 3	F	935	940	anti-parallel
Strand 4	F	1188	1194	anti-parallel

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There are 4 strands in AD9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	967	973	first strand
Strand 2	F	978	983	anti-parallel
Strand 3	F	988	993	anti-parallel
Strand 4	F	1000	1003	anti-parallel

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There are 4 strands in AE1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	1016	1022	first strand
Strand 2	F	1027	1032	anti-parallel
Strand 3	F	1037	1042	anti-parallel
Strand 4	F	1052	1053	anti-parallel

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There are 4 strands in AE2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	1063	1065	first strand
Strand 2	F	1070	1077	anti-parallel
Strand 3	F	1080	1086	anti-parallel
Strand 4	F	1094	1097	anti-parallel

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There are 4 strands in AE3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	1104	1110	first strand
Strand 2	F	1115	1120	anti-parallel
Strand 3	F	1125	1130	anti-parallel
Strand 4	F	1137	1140	anti-parallel

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There are 4 strands in AE4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	1147	1153	first strand
Strand 2	F	1156	1161	anti-parallel
Strand 3	F	1166	1171	anti-parallel
Strand 4	F	1179	1183	anti-parallel

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There are 2 strands in AE5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	1217	1220	first strand
Strand 2	F	1226	1229	anti-parallel

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There are 2 strands in AE6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	1235	1236	first strand
Strand 2	F	1243	1244	anti-parallel

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There are 2 strands in AE7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	35	37	first strand
Strand 2	G	50	52	anti-parallel

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There are 2 strands in AE8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	35	37	first strand
Strand 2	H	50	52	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: 21KR

Analysis of interatomic Contacts of Structural Units in PDB entry:
21KR