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

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 21KT entry

There are 8 chains in PDB entry 21KT (CSU analysis of residue contacts immediately below table)

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

There are 53 helices in PDB entry 21KT. 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	28	Right-handed 310
Helix 2	AA2	A	29	34	Right-handed alpha
Helix 3	AA3	A	49	59	Right-handed alpha
Helix 4	AA4	A	62	81	Right-handed alpha
Helix 5	AA5	A	98	102	Right-handed 310
Helix 6	AA6	A	106	131	Right-handed alpha
Helix 7	AA7	A	158	171	Right-handed alpha
Helix 8	AA8	A	178	197	Right-handed alpha
Helix 9	AA9	A	207	211	Right-handed 310
Helix 10	AB1	A	223	237	Right-handed alpha
Helix 11	AB2	A	306	311	Right-handed alpha
Helix 12	AB3	C	40	45	Right-handed alpha
Helix 13	AB4	C	61	70	Right-handed alpha
Helix 14	AB5	C	72	79	Right-handed alpha
Helix 15	AB6	C	83	93	Right-handed alpha
Helix 16	AB7	C	107	116	Right-handed alpha
Helix 17	AB8	C	118	123	Right-handed alpha
Helix 18	AB9	D	40	45	Right-handed 310
Helix 19	AC1	D	61	71	Right-handed alpha
Helix 20	AC2	D	72	77	Right-handed alpha
Helix 21	AC3	D	83	93	Right-handed alpha
Helix 22	AC4	D	107	116	Right-handed alpha
Helix 23	AC5	E	21	28	Right-handed 310
Helix 24	AC6	E	29	38	Right-handed alpha
Helix 25	AC7	E	41	45	Right-handed 310
Helix 26	AC8	E	49	59	Right-handed alpha
Helix 27	AC9	E	62	81	Right-handed alpha
Helix 28	AD1	E	98	104	Right-handed 310
Helix 29	AD2	E	106	131	Right-handed alpha
Helix 30	AD3	E	158	171	Right-handed alpha
Helix 31	AD4	E	178	198	Right-handed alpha
Helix 32	AD5	E	207	211	Right-handed 310
Helix 33	AD6	E	223	237	Right-handed alpha
Helix 34	AD7	E	306	311	Right-handed alpha
Helix 35	AD8	F	891	897	Right-handed alpha
Helix 36	AD9	F	898	900	Right-handed 310
Helix 37	AE1	F	1066	1068	Right-handed 310
Helix 38	AE2	F	1198	1204	Right-handed alpha
Helix 39	AE3	F	1209	1214	Right-handed 310
Helix 40	AE4	H	40	45	Right-handed alpha
Helix 41	AE5	H	61	70	Right-handed alpha
Helix 42	AE6	H	71	76	Right-handed 310
Helix 43	AE7	H	83	93	Right-handed alpha
Helix 44	AE8	H	108	123	Right-handed alpha
Helix 45	AE9	G	61	70	Right-handed alpha
Helix 46	AF1	G	72	78	Right-handed alpha
Helix 47	AF2	G	83	93	Right-handed alpha
Helix 48	AF3	G	107	125	Right-handed alpha
Helix 49	AF4	B	891	897	Right-handed alpha
Helix 50	AF5	B	898	900	Right-handed 310
Helix 51	AF6	B	1198	1205	Right-handed alpha
Helix 52	AF7	B	1206	1209	Right-handed 310
Helix 53	AF8	B	1210	1214	Right-handed 310

There are 40 sheets in PDB entry 21KT. 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,

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

Back to list of sheets
Back to top of page

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

Back to list of sheets
Back to top of page

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

Back to list of sheets
Back to top of page

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	337	351	anti-parallel
Strand 3	A	316	331	anti-parallel

Back to list of sheets
Back to top of page

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	C	36	37	first strand
Strand 2	C	50	51	anti-parallel

Back to list of sheets
Back to top of page

There are 2 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	200	203	first strand
Strand 2	E	217	220	anti-parallel

Back to list of sheets
Back to top of page

There are 3 strands in AA7 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

Back to list of sheets
Back to top of page

There are 2 strands in AA8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	319	323	first strand
Strand 2	E	344	348	anti-parallel

Back to list of sheets
Back to top of page

There are 4 strands in AA9 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

Back to list of sheets
Back to top of page

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	F	664	668	first strand
Strand 2	F	675	680	anti-parallel
Strand 3	F	685	690	anti-parallel
Strand 4	F	697	700	anti-parallel

Back to list of sheets
Back to top of page

There are 4 strands in AB2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	709	713	first strand
Strand 2	F	718	723	anti-parallel
Strand 3	F	728	733	anti-parallel
Strand 4	F	740	743	anti-parallel

Back to list of sheets
Back to top of page

There are 3 strands in AB3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	762	766	first strand
Strand 2	F	772	776	anti-parallel
Strand 3	F	784	785	anti-parallel

Back to list of sheets
Back to top of page

There are 3 strands in AB4 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	815	anti-parallel

Back to list of sheets
Back to top of page

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	F	835	841	first strand
Strand 2	F	844	849	anti-parallel
Strand 3	F	855	858	anti-parallel
Strand 4	F	867	870	anti-parallel

Back to list of sheets
Back to top of page

There are 2 strands in AB6 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

Back to list of sheets
Back to top of page

There are 2 strands in AB7 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

Back to list of sheets
Back to top of page

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	F	957	958	first strand
Strand 2	F	944	947	anti-parallel
Strand 3	F	935	940	anti-parallel
Strand 4	F	1188	1194	anti-parallel

Back to list of sheets
Back to top of page

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	F	967	972	first strand
Strand 2	F	978	983	anti-parallel
Strand 3	F	988	993	anti-parallel
Strand 4	F	1000	1004	anti-parallel

Back to list of sheets
Back to top of page

There are 4 strands in AC1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	1016	1021	first strand
Strand 2	F	1028	1032	anti-parallel
Strand 3	F	1038	1041	anti-parallel
Strand 4	F	1047	1050	anti-parallel

Back to list of sheets
Back to top of page

There are 4 strands in AC2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	1059	1065	first strand
Strand 2	F	1070	1075	anti-parallel
Strand 3	F	1083	1087	anti-parallel
Strand 4	F	1094	1097	anti-parallel

Back to list of sheets
Back to top of page

There are 4 strands in AC3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	1106	1110	first strand
Strand 2	F	1115	1120	anti-parallel
Strand 3	F	1125	1130	anti-parallel
Strand 4	F	1137	1140	anti-parallel

Back to list of sheets
Back to top of page

There are 4 strands in AC4 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

Back to list of sheets
Back to top of page

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	F	1235	1236	first strand
Strand 2	F	1243	1244	anti-parallel

Back to list of sheets
Back to top of page

There are 2 strands in AC6 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

Back to list of sheets
Back to top of page

There are 4 strands in AC7 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

Back to list of sheets
Back to top of page

There are 4 strands in AC8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	667	670	first strand
Strand 2	B	675	680	anti-parallel
Strand 3	B	685	690	anti-parallel
Strand 4	B	697	700	anti-parallel

Back to list of sheets
Back to top of page

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	B	711	713	first strand
Strand 2	B	718	723	anti-parallel
Strand 3	B	728	733	anti-parallel
Strand 4	B	740	743	anti-parallel

Back to list of sheets
Back to top of page

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	B	754	756	first strand
Strand 2	B	761	765	anti-parallel
Strand 3	B	773	777	anti-parallel
Strand 4	B	784	785	anti-parallel

Back to list of sheets
Back to top of page

There are 3 strands in AD2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	793	798	first strand
Strand 2	B	805	809	anti-parallel
Strand 3	B	815	816	anti-parallel

Back to list of sheets
Back to top of page

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	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

Back to list of sheets
Back to top of page

There are 2 strands in AD4 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

Back to list of sheets
Back to top of page

There are 2 strands in AD5 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

Back to list of sheets
Back to top of page

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	B	935	940	first strand
Strand 2	B	1188	1194	anti-parallel

Back to list of sheets
Back to top of page

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	B	945	946	first strand
Strand 2	B	957	958	anti-parallel

Back to list of sheets
Back to top of page

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	B	967	973	first strand
Strand 2	B	978	983	anti-parallel
Strand 3	B	988	992	anti-parallel
Strand 4	B	1000	1004	anti-parallel

Back to list of sheets
Back to top of page

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	B	1016	1022	first strand
Strand 2	B	1027	1032	anti-parallel
Strand 3	B	1038	1042	anti-parallel
Strand 4	B	1047	1052	anti-parallel

Back to list of sheets
Back to top of page

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	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

Back to list of sheets
Back to top of page

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	B	1104	1109	first strand
Strand 2	B	1115	1120	anti-parallel
Strand 3	B	1125	1130	anti-parallel
Strand 4	B	1137	1140	anti-parallel

Back to list of sheets
Back to top of page

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	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

Back to list of sheets
Back to top of page

There are 2 strands in AE4 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

Back to list of sheets
Back to top of page

Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il

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

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