2SLK - Header Asymmetric Unit

HEADER FIBROUS PROTEIN 02-OCT-91 2SLK

TITLE CONFORMATIONAL ENERGY STUDIES OF BETA-SHEETS OF MODEL SILK TITLE 2 FIBROIN PEPTIDES. I. SHEETS OF POLY(ALA-GLY) CHAINS

COMPND MOL_ID: 1; COMPND 2 MOLECULE:; COMPND 3 CHAIN: A, C, E, F, H, J, K, M, O; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE:; COMPND 7 CHAIN: B, D, G, I, L, N; COMPND 8 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 MOL_ID: 2

KEYWDS FIBROUS PROTEIN

EXPDTA THEORETICAL MODEL

AUTHOR S.A.FOSSEY,G.NEMETHY,K.D.GIBSON,H.A.SCHERAGA

REVDAT 1 31-JAN-94 2SLK 0

JRNL AUTH S.A.FOSSEY,G.NEMETHY,K.D.GIBSON,H.A.SCHERAGA JRNL TITL CONFORMATIONAL ENERGY STUDIES OF BETA-SHEETS OF JRNL TITL 2 MODEL SILK FIBROIN PEPTIDES. I. SHEETS OF JRNL TITL 3 POLY(ALA-GLY) CHAINS. JRNL REF BIOPOLYMERS V. 31 1529 1991 JRNL REFN ASTM BIPMAA US ISSN 0006-3525

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : NULL REMARK 3 AUTHORS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 2SLK COMPLIES WITH FORMAT V. 2.3, 09-JULY-1998

REMARK 5 REMARK 5 THESE STRUCTURES WERE CALCULATED USING THE EMPIRICAL REMARK 5 CONFORMATIONAL ENERGY PROGRAM FOR PEPTIDES VERSION 2 REMARK 5 (ECEPP/2). TWO CRYSTAL STRUCTURES ARE PROVIDED: SILK I REMARK 5 AND SILK II. THE CALCULATED SILK I STRUCTURE (PROTEIN DATA REMARK 5 BANK ENTRY 1SLK) IS PROVIDED FOR COMPARISON PURPOSES. REMARK 5 EXPERIMENTALLY DERIVED UNIT CELLS ARE AVAILABLE.

REMARK 220 REMARK 220 EXPERIMENTAL DETAILS REMARK 220 EXPERIMENT TYPE : THEORETICAL MODELLING REMARK 220 REMARK 220 REMARK: NULL

REMARK 225 REMARK 225 THEORETICAL MODEL REMARK 225 THE COORDINATES IN THIS ENTRY REPRESENT A MODEL STRUCTURE. REMARK 225 PROTEIN DATA BANK CONVENTIONS REQUIRE THAT CRYST1 AND REMARK 225 SCALE RECORDS BE INCLUDED, BUT THE VALUES ON THESE REMARK 225 RECORDS ARE MEANINGLESS.

REMARK 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 NME A 8 REMARK 465 NME B 8 REMARK 465 NME C 8 REMARK 465 NME D 8 REMARK 465 NME E 8 REMARK 465 NME F 8 REMARK 465 NME G 8 REMARK 465 NME H 8 REMARK 465 NME I 8 REMARK 465 NME J 8 REMARK 465 NME K 8 REMARK 465 NME L 8 REMARK 465 NME M 8 REMARK 465 NME N 8 REMARK 465 NME O 8

REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI REMARK 500 C GLY A 7 N NME A 8 1.32 REMARK 500 C GLY E 7 N NME E 8 1.32 REMARK 500 C GLY J 7 N NME J 8 1.32 REMARK 500 C ALA L 7 N NME L 8 1.32 REMARK 500 C ALA N 7 N NME N 8 1.32 REMARK 500 C GLY O 7 N NME O 8 1.32 REMARK 500 C ALA B 7 N NME B 8 1.33 REMARK 500 C GLY C 7 N NME C 8 1.33 REMARK 500 C ALA D 7 N NME D 8 1.33 REMARK 500 C GLY F 7 N NME F 8 1.33 REMARK 500 C ALA G 7 N NME G 8 1.33 REMARK 500 C GLY H 7 N NME H 8 1.33 REMARK 500 C ALA I 7 N NME I 8 1.33 REMARK 500 C GLY K 7 N NME K 8 1.33 REMARK 500 C GLY M 7 N NME M 8 1.33

SEQRES 1 A 8 ACE ALA GLY ALA GLY ALA GLY NME SEQRES 1 B 8 ACE GLY ALA GLY ALA GLY ALA NME SEQRES 1 C 8 ACE ALA GLY ALA GLY ALA GLY NME SEQRES 1 D 8 ACE GLY ALA GLY ALA GLY ALA NME SEQRES 1 E 8 ACE ALA GLY ALA GLY ALA GLY NME SEQRES 1 F 8 ACE ALA GLY ALA GLY ALA GLY NME SEQRES 1 G 8 ACE GLY ALA GLY ALA GLY ALA NME SEQRES 1 H 8 ACE ALA GLY ALA GLY ALA GLY NME SEQRES 1 I 8 ACE GLY ALA GLY ALA GLY ALA NME SEQRES 1 J 8 ACE ALA GLY ALA GLY ALA GLY NME SEQRES 1 K 8 ACE ALA GLY ALA GLY ALA GLY NME SEQRES 1 L 8 ACE GLY ALA GLY ALA GLY ALA NME SEQRES 1 M 8 ACE ALA GLY ALA GLY ALA GLY NME SEQRES 1 N 8 ACE GLY ALA GLY ALA GLY ALA NME SEQRES 1 O 8 ACE ALA GLY ALA GLY ALA GLY NME

MODRES 2SLK NME A 8 METHYLAMINE MODRES 2SLK NME B 8 METHYLAMINE MODRES 2SLK NME C 8 METHYLAMINE MODRES 2SLK NME D 8 METHYLAMINE MODRES 2SLK NME E 8 METHYLAMINE MODRES 2SLK NME F 8 METHYLAMINE MODRES 2SLK NME G 8 METHYLAMINE MODRES 2SLK NME H 8 METHYLAMINE MODRES 2SLK NME I 8 METHYLAMINE MODRES 2SLK NME J 8 METHYLAMINE MODRES 2SLK NME K 8 METHYLAMINE MODRES 2SLK NME L 8 METHYLAMINE MODRES 2SLK NME M 8 METHYLAMINE MODRES 2SLK NME N 8 METHYLAMINE MODRES 2SLK NME O 8 METHYLAMINE

HET ACE A 1 6 HET ACE B 1 6 HET ACE C 1 6 HET ACE D 1 6 HET ACE E 1 6 HET ACE F 1 6 HET ACE G 1 6 HET ACE H 1 6 HET ACE I 1 6 HET ACE J 1 6 HET ACE K 1 6 HET ACE L 1 6 HET ACE M 1 6 HET ACE N 1 6 HET ACE O 1 6 HET NME A 8 6 HET NME B 8 6 HET NME C 8 6 HET NME D 8 6 HET NME E 8 6 HET NME F 8 6 HET NME G 8 6 HET NME H 8 6 HET NME I 8 6 HET NME J 8 6 HET NME K 8 6 HET NME L 8 6 HET NME M 8 6 HET NME N 8 6 HET NME O 8 6

HETNAM ACE ACETYL GROUP HETNAM NME METHYLAMINE

FORMUL 1 ACE 15(C2 H4 O) FORMUL 16 NME 15(C H5 N)

SHEET 1 A 5 GLY A 3 ALA A 6 0 SHEET 2 A 5 ALA B 3 GLY B 6 -1 O GLY B 4 N GLY A 5 SHEET 3 A 5 GLY C 3 ALA C 6 -1 O ALA C 4 N ALA B 5 SHEET 4 A 5 ALA D 3 GLY D 6 -1 N GLY D 4 O GLY C 5 SHEET 5 A 5 GLY E 3 ALA E 6 -1 O ALA E 4 N ALA D 5 SHEET 1 B 5 GLY F 3 ALA F 6 0 SHEET 2 B 5 ALA G 3 GLY G 6 -1 N GLY G 4 O GLY F 5 SHEET 3 B 5 GLY H 3 ALA H 6 -1 N ALA H 4 O ALA G 5 SHEET 4 B 5 ALA I 3 GLY I 6 -1 N GLY I 4 O GLY H 5 SHEET 5 B 5 GLY J 3 ALA J 6 -1 N ALA J 4 O ALA I 5 SHEET 1 C 5 GLY K 3 ALA K 6 0 SHEET 2 C 5 ALA L 3 GLY L 6 -1 N GLY L 4 O GLY K 5 SHEET 3 C 5 GLY M 3 ALA M 6 -1 N ALA M 4 O ALA L 5 SHEET 4 C 5 ALA N 3 GLY N 6 -1 O GLY N 4 N GLY M 5 SHEET 5 C 5 GLY O 3 ALA O 6 -1 N ALA O 4 O ALA N 5

CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 1

ORIGX1 1.000000 0.000000 0.000000 0.00000

ORIGX2 0.000000 1.000000 0.000000 0.00000

ORIGX3 0.000000 0.000000 1.000000 0.00000

SCALE1 1.000000 0.000000 0.000000 0.00000

SCALE2 0.000000 1.000000 0.000000 0.00000

SCALE3 0.000000 0.000000 1.000000 0.00000