HEADER INTRON 07-MAY-91 1IPT TITLE MODELLING OF THE THREE-DIMENSIONAL ARCHITECTURE OF GROUP I TITLE 2 CATALYTIC INTRONS BASED ON COMPARATIVE SEQUENCE ANALYSIS COMPND MOL_ID: 1; COMPND 2 MOLECULE: RNA (5'-R(P*UP*CP*UP*CP*U)-3'); COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: RNA (5'- COMPND 7 R(P*UP*AP*CP*CP*UP*UP*UP*GP*GP*AP*GP*GP*A)-3'); COMPND 8 CHAIN: B; COMPND 9 ENGINEERED: YES; COMPND 10 MOL_ID: 3; COMPND 11 MOLECULE: RNA (5'- COMPND 12 R(P*GP*AP*CP*CP*GP*UP*CP*AP*AP*AP*UP*UP*GP*CP*GP*GP*GP*AP*A COMPND 13 P*AP*GP*G)-3'); COMPND 14 CHAIN: C; COMPND 15 ENGINEERED: YES; COMPND 16 MOL_ID: 4; COMPND 17 MOLECULE: RNA (5'- COMPND 18 R(P*CP*UP*AP*AP*CP*CP*AP*CP*GP*CP*AP*GP*CP*CP*AP*AP*GP*U)- COMPND 19 3'); COMPND 20 CHAIN: D; COMPND 21 ENGINEERED: YES; COMPND 22 MOL_ID: 5; COMPND 23 MOLECULE: RNA (31-MER); COMPND 24 CHAIN: E; COMPND 25 ENGINEERED: YES; COMPND 26 MOL_ID: 6; COMPND 27 MOLECULE: RNA (5'- COMPND 28 R(P*CP*UP*CP*AP*UP*AP*AP*GP*AP*UP*AP*UP*AP*GP*UP*CP*GP*GP*A COMPND 29 )-3'); COMPND 30 CHAIN: F; COMPND 31 ENGINEERED: YES; COMPND 32 MOL_ID: 7; COMPND 33 MOLECULE: RNA (5'-R(P*UP*CP*GP*UP*AP*AP*GP*GP*UP*A)-3'); COMPND 34 CHAIN: G; COMPND 35 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 MOL_ID: 2; SOURCE 4 SYNTHETIC: YES; SOURCE 5 MOL_ID: 3; SOURCE 6 SYNTHETIC: YES; SOURCE 7 MOL_ID: 4; SOURCE 8 SYNTHETIC: YES; SOURCE 9 MOL_ID: 5; SOURCE 10 SYNTHETIC: YES; SOURCE 11 MOL_ID: 6; SOURCE 12 SYNTHETIC: YES; SOURCE 13 MOL_ID: 7; SOURCE 14 SYNTHETIC: YES KEYWDS INTRON EXPDTA THEORETICAL MODEL AUTHOR F.MICHEL,E.WESTHOF REVDAT 1 31-JAN-94 1IPT 0 JRNL AUTH F.MICHEL,E.WESTHOF JRNL TITL MODELLING OF THE THREE-DIMENSIONAL ARCHITECTURE OF JRNL TITL 2 GROUP I CATALYTIC INTRONS BASED ON COMPARATIVE JRNL TITL 3 SEQUENCE ANALYSIS. JRNL REF J.MOL.BIOL. V. 216 585 1990 JRNL REFN ASTM JMOBAK UK ISSN 0022-2836 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 1IPT COMPLIES WITH FORMAT V. 2.3, 09-JULY-1998 REMARK 5 REMARK 5 THE SEQUENCE NUMBERING IS THAT OF THE AUTHORS. REMARK 6 REMARK 6 THIS ENTRY CONTAINS A MODEL OF THE CONSERVED CORE OF GROUP REMARK 6 I INTRONS BASED ON THE ALIGNMENT OF 87 SEQUENCES. THE REMARK 6 CONSERVED CORE CONSISTS OF SEVEN DISCONTINUOUS STRANDS. REMARK 6 THESE STRANDS HAVE BEEN ASSIGNED CHAIN INDICATORS *A* - REMARK 6 *G* IN THIS ENTRY. REMARK 105 REMARK 105 THE PROTEIN DATA BANK HAS ADOPTED THE SACCHARIDE CHEMISTS REMARK 105 NOMENCLATURE FOR ATOMS OF THE DEOXYRIBOSE/RIBOSE MOIETY REMARK 105 RATHER THAN THAT OF THE NUCLEOSIDE CHEMISTS. THE RING REMARK 105 OXYGEN ATOM IS LABELLED O4* INSTEAD OF O1*. 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 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 O3* A B 28 P G C 96 1.61 SEQRES 1 A 5 U C U C U SEQRES 1 B 13 U A C C U U U G G A G G A SEQRES 1 C 22 G A C C G U C A A A U U G SEQRES 2 C 22 C G G G A A A G G SEQRES 1 D 18 C U A A C C A C G C A G C SEQRES 2 D 18 C A A G U SEQRES 1 E 31 A U G C A G U U C A C A G SEQRES 2 E 31 A C U A A A U G U C G G U SEQRES 3 E 31 C G G G G SEQRES 1 F 19 C U C A U A A G A U A U A SEQRES 2 F 19 G U C G G A SEQRES 1 G 10 U C G U A A G G U A 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 MASTER 42 0 0 0 0 0 0 6 0 0 0 12 END