HEADER HORMONE 17-MAY-14 2MPG TITLE SOLUTION STRUCTURE OF THE [AIBB8,LYSB28,PROB29]-INSULIN ANALOGUE COMPND MOL_ID: 1; COMPND 2 MOLECULE: INSULIN A CHAIN; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: INSULIN B CHAIN, INSULIN A CHAIN; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES; COMPND 7 MOL_ID: 2; COMPND 8 MOLECULE: INSULIN B CHAIN; COMPND 9 CHAIN: B; COMPND 10 SYNONYM: INSULIN B CHAIN, INSULIN A CHAIN; COMPND 11 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: INS; SOURCE 6 MOL_ID: 2; SOURCE 7 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 8 ORGANISM_COMMON: HUMAN; SOURCE 9 ORGANISM_TAXID: 9606; SOURCE 10 GENE: INS KEYWDS INSULIN ANALOGUE, HORMONE EXPDTA SOLUTION NMR NUMMDL 35 AUTHOR L.KOSINOVA,J.JIRACEK,L.ZAKOVA,V.VEVERKA REVDAT 3 27-DEC-23 2MPG 1 REMARK SEQADV LINK REVDAT 2 18-FEB-15 2MPG 1 JRNL REVDAT 1 11-JUN-14 2MPG 0 JRNL AUTH L.KOSINOVA,V.VEVERKA,P.NOVOTNA,M.COLLINSOVA,M.URBANOVA, JRNL AUTH 2 N.R.MOODY,J.P.TURKENBURG,J.JIRACEK,A.M.BRZOZOWSKI,L.ZAKOVA JRNL TITL INSIGHT INTO THE STRUCTURAL AND BIOLOGICAL RELEVANCE OF THE JRNL TITL 2 T/R TRANSITION OF THE N-TERMINUS OF THE B-CHAIN IN HUMAN JRNL TITL 3 INSULIN. JRNL REF BIOCHEMISTRY V. 53 3392 2014 JRNL REFN ISSN 0006-2960 JRNL PMID 24819248 JRNL DOI 10.1021/BI500073Z REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : TOPSPIN, YASARA, CYANA REMARK 3 AUTHORS : BRUKER BIOSPIN (TOPSPIN), YASARA (YASARA), REMARK 3 GUNTERT, MUMENTHALER AND WUTHRICH (CYANA) REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2MPG COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 20-MAY-14. REMARK 100 THE DEPOSITION ID IS D_1000103893. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 298 REMARK 210 PH : 1.9 REMARK 210 IONIC STRENGTH : NULL REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 0.3 MM PROTEIN_1, 20 % [U-2H] REMARK 210 ACETIC ACID, 95% H2O/5% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D 1H-1H NOESY; 2D 1H-1H TOCSY; REMARK 210 2D DQF-COSY REMARK 210 SPECTROMETER FIELD STRENGTH : 600 MHZ REMARK 210 SPECTROMETER MODEL : AVANCE REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : TOPSPIN, SPARKY, CYANA REMARK 210 METHOD USED : TORSION ANGLE DYNAMICS, REMARK 210 MOLECULAR DYNAMICS REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 100 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 35 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LEAST REMARK 210 RESTRAINT VIOLATIONS REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 REMARK 210 REMARK 210 REMARK: NULL REMARK 215 REMARK 215 NMR STUDY REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION REMARK 215 NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON REMARK 215 THESE RECORDS ARE MEANINGLESS. REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 RES CSSEQI ATM2 DEVIATION REMARK 500 1 TYR A 14 CD1 TYR A 14 CE1 0.114 REMARK 500 1 TYR A 14 CE1 TYR A 14 CZ 0.161 REMARK 500 1 GLU B 21 CD GLU B 21 OE1 -0.067 REMARK 500 2 GLY A 1 N GLY A 1 CA 0.094 REMARK 500 2 TYR A 14 CZ TYR A 14 CE2 0.150 REMARK 500 2 TYR A 14 CE2 TYR A 14 CD2 0.158 REMARK 500 2 GLU B 21 CD GLU B 21 OE1 -0.073 REMARK 500 3 TYR A 14 CD1 TYR A 14 CE1 0.120 REMARK 500 3 TYR A 14 CE1 TYR A 14 CZ 0.155 REMARK 500 3 GLU A 17 CD GLU A 17 OE1 -0.068 REMARK 500 3 GLU B 21 CD GLU B 21 OE1 -0.073 REMARK 500 4 TYR A 14 CZ TYR A 14 CE2 0.154 REMARK 500 4 TYR A 14 CE2 TYR A 14 CD2 0.154 REMARK 500 4 GLU A 17 CD GLU A 17 OE2 0.068 REMARK 500 4 GLU B 13 CD GLU B 13 OE1 -0.073 REMARK 500 5 TYR A 14 CZ TYR A 14 CE2 0.143 REMARK 500 5 TYR A 14 CE2 TYR A 14 CD2 0.179 REMARK 500 5 GLU A 17 CD GLU A 17 OE1 -0.088 REMARK 500 5 GLU B 21 CD GLU B 21 OE1 -0.074 REMARK 500 6 TYR A 14 CD1 TYR A 14 CE1 0.177 REMARK 500 6 TYR A 14 CE1 TYR A 14 CZ 0.140 REMARK 500 7 TYR A 14 CD1 TYR A 14 CE1 0.123 REMARK 500 7 TYR A 14 CE1 TYR A 14 CZ 0.159 REMARK 500 7 GLU A 17 CD GLU A 17 OE2 0.067 REMARK 500 7 GLU B 21 CD GLU B 21 OE1 -0.069 REMARK 500 8 GLU A 4 CD GLU A 4 OE1 -0.080 REMARK 500 8 LEU A 13 C LEU A 13 O 0.121 REMARK 500 8 TYR A 14 CD1 TYR A 14 CE1 0.123 REMARK 500 8 TYR A 14 CE1 TYR A 14 CZ 0.163 REMARK 500 8 GLU B 13 CD GLU B 13 OE1 -0.066 REMARK 500 9 TYR A 14 CZ TYR A 14 CE2 0.146 REMARK 500 9 TYR A 14 CE2 TYR A 14 CD2 0.157 REMARK 500 10 TYR A 14 CZ TYR A 14 CE2 0.159 REMARK 500 10 TYR A 14 CE2 TYR A 14 CD2 0.176 REMARK 500 10 GLU B 21 CD GLU B 21 OE1 -0.085 REMARK 500 11 TYR A 14 CZ TYR A 14 CE2 0.160 REMARK 500 11 TYR A 14 CE2 TYR A 14 CD2 0.116 REMARK 500 11 GLU A 17 CD GLU A 17 OE1 -0.076 REMARK 500 11 GLU B 21 CD GLU B 21 OE1 -0.078 REMARK 500 11 GLU B 21 CD GLU B 21 OE2 0.076 REMARK 500 12 TYR A 14 CZ TYR A 14 CE2 0.130 REMARK 500 12 TYR A 14 CE2 TYR A 14 CD2 0.150 REMARK 500 13 LEU A 13 C LEU A 13 O 0.130 REMARK 500 13 TYR A 14 CD1 TYR A 14 CE1 0.150 REMARK 500 13 TYR A 14 CE1 TYR A 14 CZ 0.166 REMARK 500 14 GLU A 4 CD GLU A 4 OE1 -0.074 REMARK 500 14 LEU A 13 C LEU A 13 O 0.117 REMARK 500 14 TYR A 14 CD1 TYR A 14 CE1 0.116 REMARK 500 14 TYR A 14 CE1 TYR A 14 CZ 0.157 REMARK 500 14 GLU B 21 CD GLU B 21 OE1 -0.072 REMARK 500 REMARK 500 THIS ENTRY HAS 122 BOND DEVIATIONS. REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 1 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = -9.9 DEGREES REMARK 500 2 TYR A 14 CZ - CE2 - CD2 ANGL. DEV. = -8.6 DEGREES REMARK 500 3 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = -7.5 DEGREES REMARK 500 4 TYR A 14 CZ - CE2 - CD2 ANGL. DEV. = -6.7 DEGREES REMARK 500 5 TYR A 14 CZ - CE2 - CD2 ANGL. DEV. = -9.3 DEGREES REMARK 500 6 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = -6.9 DEGREES REMARK 500 7 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = -8.5 DEGREES REMARK 500 7 ARG B 22 NE - CZ - NH1 ANGL. DEV. = 3.5 DEGREES REMARK 500 8 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = -7.3 DEGREES REMARK 500 9 TYR A 14 CZ - CE2 - CD2 ANGL. DEV. = -6.5 DEGREES REMARK 500 10 TYR A 14 CZ - CE2 - CD2 ANGL. DEV. = -9.3 DEGREES REMARK 500 11 TYR A 14 CZ - CE2 - CD2 ANGL. DEV. = -8.2 DEGREES REMARK 500 12 TYR A 14 CZ - CE2 - CD2 ANGL. DEV. = -7.1 DEGREES REMARK 500 13 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = -8.7 DEGREES REMARK 500 14 TYR A 14 CB - CG - CD2 ANGL. DEV. = -4.0 DEGREES REMARK 500 14 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = -6.6 DEGREES REMARK 500 15 TYR A 14 CZ - CE2 - CD2 ANGL. DEV. = -8.1 DEGREES REMARK 500 16 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = -7.6 DEGREES REMARK 500 16 ARG B 22 NE - CZ - NH1 ANGL. DEV. = 3.6 DEGREES REMARK 500 17 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = -8.8 DEGREES REMARK 500 18 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = 5.9 DEGREES REMARK 500 18 TYR A 14 CZ - CE2 - CD2 ANGL. DEV. = -7.3 DEGREES REMARK 500 19 TYR A 14 CZ - CE2 - CD2 ANGL. DEV. = -6.9 DEGREES REMARK 500 20 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = -8.7 DEGREES REMARK 500 21 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = -7.5 DEGREES REMARK 500 21 ARG B 22 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 22 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = -8.5 DEGREES REMARK 500 23 TYR A 14 CZ - CE2 - CD2 ANGL. DEV. = -8.2 DEGREES REMARK 500 24 TYR A 14 CB - CG - CD1 ANGL. DEV. = -4.2 DEGREES REMARK 500 24 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = 7.4 DEGREES REMARK 500 24 TYR A 14 CZ - CE2 - CD2 ANGL. DEV. = -7.1 DEGREES REMARK 500 25 TYR A 14 CZ - CE2 - CD2 ANGL. DEV. = -8.3 DEGREES REMARK 500 26 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = -7.7 DEGREES REMARK 500 27 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = 5.5 DEGREES REMARK 500 27 TYR A 14 CZ - CE2 - CD2 ANGL. DEV. = -7.7 DEGREES REMARK 500 28 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = -8.3 DEGREES REMARK 500 29 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = -8.7 DEGREES REMARK 500 29 TYR A 14 CZ - CE2 - CD2 ANGL. DEV. = 5.7 DEGREES REMARK 500 29 ARG B 22 NE - CZ - NH2 ANGL. DEV. = -3.1 DEGREES REMARK 500 30 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = -7.7 DEGREES REMARK 500 31 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = -8.8 DEGREES REMARK 500 32 TYR A 14 CB - CG - CD1 ANGL. DEV. = -5.0 DEGREES REMARK 500 32 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = -7.0 DEGREES REMARK 500 33 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = -9.2 DEGREES REMARK 500 34 TYR A 14 CZ - CE2 - CD2 ANGL. DEV. = -7.2 DEGREES REMARK 500 34 ARG B 22 NE - CZ - NH1 ANGL. DEV. = 3.4 DEGREES REMARK 500 35 TYR A 14 CB - CG - CD2 ANGL. DEV. = -3.8 DEGREES REMARK 500 35 TYR A 14 CD1 - CE1 - CZ ANGL. DEV. = 7.5 DEGREES REMARK 500 35 TYR A 14 CZ - CE2 - CD2 ANGL. DEV. = -8.2 DEGREES REMARK 500 35 ARG B 22 NE - CZ - NH1 ANGL. DEV. = 3.5 DEGREES REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: TORSION ANGLES REMARK 500 REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS: REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2) REMARK 500 REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI- REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400 REMARK 500 REMARK 500 M RES CSSEQI PSI PHI REMARK 500 1 ASN B 3 75.71 -100.98 REMARK 500 1 GLN B 4 -164.33 -128.19 REMARK 500 1 AIB B 8 -179.60 -53.32 REMARK 500 1 TYR B 26 138.00 107.12 REMARK 500 2 AIB B 8 -123.59 39.92 REMARK 500 3 CYS A 20 -153.15 -94.41 REMARK 500 3 AIB B 8 -144.13 45.15 REMARK 500 3 PHE B 25 -165.07 -115.01 REMARK 500 4 VAL B 2 102.79 62.83 REMARK 500 4 AIB B 8 -138.36 46.22 REMARK 500 5 SER A 9 -148.14 48.33 REMARK 500 5 GLN B 4 -155.35 -133.90 REMARK 500 5 CYS B 7 -58.84 -138.94 REMARK 500 5 AIB B 8 -157.18 -71.80 REMARK 500 5 THR B 27 131.41 62.79 REMARK 500 6 GLN B 4 -156.19 -152.77 REMARK 500 6 AIB B 8 -118.42 47.20 REMARK 500 6 THR B 27 144.95 67.74 REMARK 500 7 GLN B 4 -162.87 -161.62 REMARK 500 7 AIB B 8 -161.07 53.14 REMARK 500 7 THR B 27 52.30 -142.55 REMARK 500 8 SER A 9 -158.95 -150.78 REMARK 500 8 ASN B 3 21.13 -76.55 REMARK 500 8 AIB B 8 -120.92 55.61 REMARK 500 9 SER A 9 -153.66 51.22 REMARK 500 9 AIB B 8 -142.12 43.63 REMARK 500 9 PHE B 24 16.79 -141.71 REMARK 500 10 CYS A 20 -139.51 -155.91 REMARK 500 10 AIB B 8 -142.82 53.15 REMARK 500 10 GLU B 21 7.58 -68.04 REMARK 500 11 SER A 9 -175.84 53.69 REMARK 500 11 AIB B 8 -142.69 47.37 REMARK 500 11 THR B 27 157.30 72.92 REMARK 500 12 AIB B 8 -132.57 47.66 REMARK 500 13 AIB B 8 -158.13 55.42 REMARK 500 13 THR B 27 130.05 73.50 REMARK 500 14 GLN B 4 -153.80 -104.00 REMARK 500 14 CYS B 7 -52.90 -148.49 REMARK 500 14 AIB B 8 -162.51 -69.25 REMARK 500 14 TYR B 26 73.99 53.61 REMARK 500 15 SER A 9 -160.63 61.73 REMARK 500 15 ASN B 3 97.35 -67.25 REMARK 500 15 AIB B 8 -141.86 44.37 REMARK 500 15 PRO B 29 98.31 -69.12 REMARK 500 16 SER A 9 -161.73 -122.03 REMARK 500 16 ASN B 3 -155.34 -133.35 REMARK 500 16 GLN B 4 -166.69 -102.66 REMARK 500 16 AIB B 8 -145.08 52.97 REMARK 500 17 GLN B 4 -155.77 -156.54 REMARK 500 17 AIB B 8 -150.89 66.30 REMARK 500 REMARK 500 THIS ENTRY HAS 132 RAMACHANDRAN OUTLIERS. REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 19978 RELATED DB: BMRB DBREF 2MPG A 1 21 UNP P01308 INS_HUMAN 90 110 DBREF 2MPG B 1 30 UNP P01308 INS_HUMAN 25 54 SEQADV 2MPG AIB B 8 UNP P01308 GLY 32 ENGINEERED MUTATION SEQADV 2MPG LYS B 28 UNP P01308 PRO 52 ENGINEERED MUTATION SEQADV 2MPG PRO B 29 UNP P01308 LYS 53 ENGINEERED MUTATION SEQRES 1 A 21 GLY ILE VAL GLU GLN CYS CYS THR SER ILE CYS SER LEU SEQRES 2 A 21 TYR GLN LEU GLU ASN TYR CYS ASN SEQRES 1 B 30 PHE VAL ASN GLN HIS LEU CYS AIB SER HIS LEU VAL GLU SEQRES 2 B 30 ALA LEU TYR LEU VAL CYS GLY GLU ARG GLY PHE PHE TYR SEQRES 3 B 30 THR LYS PRO THR MODRES 2MPG AIB B 8 ALA ALPHA-AMINOISOBUTYRIC ACID HET AIB B 8 13 HETNAM AIB ALPHA-AMINOISOBUTYRIC ACID FORMUL 2 AIB C4 H9 N O2 HELIX 1 1 GLY A 1 SER A 9 1 9 HELIX 2 2 SER A 12 GLU A 17 1 6 HELIX 3 3 ASN A 18 ASN A 21 5 4 HELIX 4 4 SER B 9 GLY B 20 1 12 SSBOND 1 CYS A 6 CYS A 11 1555 1555 2.02 SSBOND 2 CYS A 7 CYS B 7 1555 1555 2.03 SSBOND 3 CYS A 20 CYS B 19 1555 1555 2.01 LINK C CYS B 7 N AIB B 8 1555 1555 1.39 LINK C AIB B 8 N SER B 9 1555 1555 1.37 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 MODEL 1