HEADER MEMBRANE PROTEIN 04-SEP-20 7K0J TITLE HUMAN SERINE PALMITOYLTRANSFERASE COMPLEX SPTLC1/SPLTC2/SSSPTA TITLE 2 PROTOMER COMPND MOL_ID: 1; COMPND 2 MOLECULE: SERINE PALMITOYLTRANSFERASE 1; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: LONG CHAIN BASE BIOSYNTHESIS PROTEIN 1,LCB 1,SERINE- COMPND 5 PALMITOYL-COA TRANSFERASE 1,SPT1; COMPND 6 EC: 2.3.1.50; COMPND 7 ENGINEERED: YES; COMPND 8 MOL_ID: 2; COMPND 9 MOLECULE: SERINE PALMITOYLTRANSFERASE 2; COMPND 10 CHAIN: B; COMPND 11 SYNONYM: LONG CHAIN BASE BIOSYNTHESIS PROTEIN 2,LCB 2,LONG CHAIN BASE COMPND 12 BIOSYNTHESIS PROTEIN 2A,LCB2A,SERINE-PALMITOYL-COA TRANSFERASE 2,SPT COMPND 13 2; COMPND 14 EC: 2.3.1.50; COMPND 15 ENGINEERED: YES; COMPND 16 MOL_ID: 3; COMPND 17 MOLECULE: SERINE PALMITOYLTRANSFERASE SMALL SUBUNIT A; COMPND 18 CHAIN: C; COMPND 19 SYNONYM: SMALL SUBUNIT OF SERINE PALMITOYLTRANSFERASE A,SSSPTA; COMPND 20 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: SPTLC1, LCB1; SOURCE 6 EXPRESSION_SYSTEM: HOMO SAPIENS; SOURCE 7 EXPRESSION_SYSTEM_COMMON: HUMAN; SOURCE 8 EXPRESSION_SYSTEM_TAXID: 9606; SOURCE 9 MOL_ID: 2; SOURCE 10 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 11 ORGANISM_COMMON: HUMAN; SOURCE 12 ORGANISM_TAXID: 9606; SOURCE 13 GENE: SPTLC2, KIAA0526, LCB2; SOURCE 14 EXPRESSION_SYSTEM: HOMO SAPIENS; SOURCE 15 EXPRESSION_SYSTEM_COMMON: HUMAN; SOURCE 16 EXPRESSION_SYSTEM_TAXID: 9606; SOURCE 17 MOL_ID: 3; SOURCE 18 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 19 ORGANISM_COMMON: HUMAN; SOURCE 20 ORGANISM_TAXID: 9606; SOURCE 21 GENE: SPTSSA, C14ORF147, SSSPTA; SOURCE 22 EXPRESSION_SYSTEM: HOMO SAPIENS; SOURCE 23 EXPRESSION_SYSTEM_COMMON: HUMAN; SOURCE 24 EXPRESSION_SYSTEM_TAXID: 9606 KEYWDS SPHINGOLIPID, MEMBRANE PROTEIN EXPDTA ELECTRON MICROSCOPY AUTHOR Y.WANG,Y.NIU,Z.ZHANG,H.ZHAO,A.MYASNIKOV,R.KALATHUR,C.H.LEE REVDAT 2 24-MAR-21 7K0J 1 JRNL REVDAT 1 24-FEB-21 7K0J 0 JRNL AUTH Y.WANG,Y.NIU,Z.ZHANG,K.GABLE,S.D.GUPTA,N.SOMASHEKARAPPA, JRNL AUTH 2 G.HAN,H.ZHAO,A.G.MYASNIKOV,R.C.KALATHUR,T.M.DUNN,C.H.LEE JRNL TITL STRUCTURAL INSIGHTS INTO THE REGULATION OF HUMAN SERINE JRNL TITL 2 PALMITOYLTRANSFERASE COMPLEXES. JRNL REF NAT.STRUCT.MOL.BIOL. V. 28 240 2021 JRNL REFN ESSN 1545-9985 JRNL PMID 33558761 JRNL DOI 10.1038/S41594-020-00551-9 REMARK 2 REMARK 2 RESOLUTION. 3.10 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : NULL REMARK 3 RECONSTRUCTION SCHEMA : NULL REMARK 3 REMARK 3 EM MAP-MODEL FITTING AND REFINEMENT REMARK 3 PDB ENTRY : NULL REMARK 3 REFINEMENT SPACE : NULL REMARK 3 REFINEMENT PROTOCOL : NULL REMARK 3 REFINEMENT TARGET : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE : NULL REMARK 3 REMARK 3 FITTING PROCEDURE : NULL REMARK 3 REMARK 3 EM IMAGE RECONSTRUCTION STATISTICS REMARK 3 NOMINAL PIXEL SIZE (ANGSTROMS) : NULL REMARK 3 ACTUAL PIXEL SIZE (ANGSTROMS) : NULL REMARK 3 EFFECTIVE RESOLUTION (ANGSTROMS) : 3.100 REMARK 3 NUMBER OF PARTICLES : 157895 REMARK 3 CTF CORRECTION METHOD : NONE REMARK 3 REMARK 3 EM RECONSTRUCTION MAGNIFICATION CALIBRATION: NULL REMARK 3 REMARK 3 OTHER DETAILS: NULL REMARK 4 REMARK 4 7K0J COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 11-SEP-20. REMARK 100 THE DEPOSITION ID IS D_1000251679. REMARK 245 REMARK 245 EXPERIMENTAL DETAILS REMARK 245 RECONSTRUCTION METHOD : SINGLE PARTICLE REMARK 245 SPECIMEN TYPE : NULL REMARK 245 REMARK 245 ELECTRON MICROSCOPE SAMPLE REMARK 245 SAMPLE TYPE : PARTICLE REMARK 245 PARTICLE TYPE : POINT REMARK 245 NAME OF SAMPLE : HUMAN SERINE REMARK 245 PALMITOYLTRANSFERASE COMPLEXES REMARK 245 SAMPLE CONCENTRATION (MG ML-1) : NULL REMARK 245 SAMPLE SUPPORT DETAILS : NULL REMARK 245 SAMPLE VITRIFICATION DETAILS : NULL REMARK 245 SAMPLE BUFFER : NULL REMARK 245 PH : 8.00 REMARK 245 SAMPLE DETAILS : NULL REMARK 245 REMARK 245 DATA ACQUISITION REMARK 245 DATE OF EXPERIMENT : NULL REMARK 245 NUMBER OF MICROGRAPHS-IMAGES : NULL REMARK 245 TEMPERATURE (KELVIN) : NULL REMARK 245 MICROSCOPE MODEL : FEI TALOS ARCTICA REMARK 245 DETECTOR TYPE : GATAN K3 (6K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : NULL REMARK 245 MAXIMUM DEFOCUS (NM) : NULL REMARK 245 MINIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 MAXIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 NOMINAL CS : NULL REMARK 245 IMAGING MODE : BRIGHT FIELD REMARK 245 ELECTRON DOSE (ELECTRONS NM**-2) : 60.35 REMARK 245 ILLUMINATION MODE : FLOOD BEAM REMARK 245 NOMINAL MAGNIFICATION : NULL REMARK 245 CALIBRATED MAGNIFICATION : NULL REMARK 245 SOURCE : FIELD EMISSION GUN REMARK 245 ACCELERATION VOLTAGE (KV) : 200 REMARK 245 IMAGING DETAILS : NULL REMARK 247 REMARK 247 ELECTRON MICROSCOPY REMARK 247 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM ELECTRON REMARK 247 MICROSCOPY DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE REMARK 247 THAT CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES REMARK 247 ON THESE RECORDS ARE MEANINGLESS EXCEPT FOR THE CALCULATION REMARK 247 OF THE STRUCTURE FACTORS. 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: TRIMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C 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 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 MET A 1 REMARK 465 ALA A 2 REMARK 465 THR A 3 REMARK 465 ALA A 4 REMARK 465 THR A 5 REMARK 465 GLU A 6 REMARK 465 GLN A 7 REMARK 465 TRP A 8 REMARK 465 VAL A 9 REMARK 465 LEU A 10 REMARK 465 VAL A 11 REMARK 465 GLU A 12 REMARK 465 MET A 13 REMARK 465 VAL A 14 REMARK 465 GLN A 15 REMARK 465 ALA A 16 REMARK 465 LEU A 17 REMARK 465 TYR A 18 REMARK 465 GLU A 19 REMARK 465 ALA A 20 REMARK 465 PRO A 21 REMARK 465 ALA A 22 REMARK 465 TYR A 23 REMARK 465 HIS A 24 REMARK 465 LEU A 25 REMARK 465 ILE A 26 REMARK 465 LEU A 27 REMARK 465 GLU A 28 REMARK 465 GLY A 29 REMARK 465 ILE A 30 REMARK 465 LEU A 31 REMARK 465 ILE A 32 REMARK 465 LEU A 33 REMARK 465 TRP A 34 REMARK 465 ILE A 35 REMARK 465 ILE A 36 REMARK 465 ARG A 37 REMARK 465 LEU A 38 REMARK 465 LEU A 39 REMARK 465 PHE A 40 REMARK 465 SER A 41 REMARK 465 LYS A 42 REMARK 465 THR A 43 REMARK 465 TYR A 44 REMARK 465 LYS A 45 REMARK 465 LEU A 46 REMARK 465 GLN A 47 REMARK 465 GLU A 48 REMARK 465 ARG A 49 REMARK 465 SER A 50 REMARK 465 MET B 1 REMARK 465 ARG B 2 REMARK 465 PRO B 3 REMARK 465 GLU B 4 REMARK 465 PRO B 5 REMARK 465 GLY B 6 REMARK 465 GLY B 7 REMARK 465 CYS B 8 REMARK 465 CYS B 9 REMARK 465 CYS B 10 REMARK 465 ARG B 11 REMARK 465 ARG B 12 REMARK 465 THR B 13 REMARK 465 VAL B 14 REMARK 465 ARG B 15 REMARK 465 ALA B 16 REMARK 465 ASN B 17 REMARK 465 GLY B 18 REMARK 465 CYS B 19 REMARK 465 VAL B 20 REMARK 465 ALA B 21 REMARK 465 ASN B 22 REMARK 465 GLY B 23 REMARK 465 GLU B 24 REMARK 465 VAL B 25 REMARK 465 ARG B 26 REMARK 465 ASN B 27 REMARK 465 GLY B 28 REMARK 465 TYR B 29 REMARK 465 VAL B 30 REMARK 465 ARG B 31 REMARK 465 SER B 32 REMARK 465 SER B 33 REMARK 465 ALA B 34 REMARK 465 ALA B 35 REMARK 465 ALA B 36 REMARK 465 ALA B 37 REMARK 465 ALA B 38 REMARK 465 ALA B 39 REMARK 465 ALA B 40 REMARK 465 ALA B 41 REMARK 465 ALA B 42 REMARK 465 GLY B 43 REMARK 465 GLN B 44 REMARK 465 ILE B 45 REMARK 465 HIS B 46 REMARK 465 HIS B 47 REMARK 465 VAL B 48 REMARK 465 THR B 49 REMARK 465 GLN B 50 REMARK 465 ASN B 51 REMARK 465 GLY B 52 REMARK 465 VAL B 545 REMARK 465 PRO B 546 REMARK 465 LEU B 547 REMARK 465 LEU B 548 REMARK 465 ASP B 549 REMARK 465 ARG B 550 REMARK 465 PRO B 551 REMARK 465 PHE B 552 REMARK 465 ASP B 553 REMARK 465 GLU B 554 REMARK 465 THR B 555 REMARK 465 THR B 556 REMARK 465 TYR B 557 REMARK 465 GLU B 558 REMARK 465 GLU B 559 REMARK 465 THR B 560 REMARK 465 GLU B 561 REMARK 465 ASP B 562 REMARK 465 MET C 1 REMARK 465 ALA C 2 REMARK 465 GLY C 3 REMARK 465 MET C 4 REMARK 465 ALA C 5 REMARK 465 LEU C 6 REMARK 465 ALA C 7 REMARK 465 VAL C 70 REMARK 465 GLN C 71 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 ASP A 51 CG OD1 OD2 REMARK 470 LYS A 75 CG CD CE NZ REMARK 470 LEU B 54 CG CD1 CD2 REMARK 470 GLU B 97 CG CD OE1 OE2 REMARK 470 LYS B 98 CG CD CE NZ REMARK 470 CYS B 99 SG REMARK 470 HIS B 101 CG ND1 CD2 CE1 NE2 REMARK 470 LEU B 544 CG CD1 CD2 REMARK 470 ARG C 8 CG CD NE CZ NH1 NH2 REMARK 470 LYS C 11 CG CD CE NZ REMARK 470 MET C 56 CG SD CE REMARK 470 GLN C 58 CG CD OE1 NE2 REMARK 470 HIS C 59 CG ND1 CD2 CE1 NE2 REMARK 470 ILE C 60 CG1 CG2 CD1 REMARK 470 MET C 61 CG SD CE REMARK 470 ILE C 63 CG1 CG2 CD1 REMARK 470 LEU C 64 CG CD1 CD2 REMARK 470 HIS C 65 CG ND1 CD2 CE1 NE2 REMARK 470 TYR C 66 CG CD1 CD2 CE1 CE2 CZ OH REMARK 470 PHE C 67 CG CD1 CD2 CE1 CE2 CZ REMARK 470 GLU C 68 CG CD OE1 OE2 REMARK 470 ILE C 69 CG1 CG2 CD1 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 CE LYS B 379 C4A PLP B 601 2.18 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 PRO A 89 46.73 -83.12 REMARK 500 SER A 423 36.18 71.88 REMARK 500 HIS B 100 52.50 -93.54 REMARK 500 GLU B 209 -67.19 -93.82 REMARK 500 SER B 410 -179.08 -68.19 REMARK 500 SER B 433 32.51 -95.50 REMARK 500 TYR B 474 -6.13 72.97 REMARK 500 REMARK 500 REMARK: NULL REMARK 610 REMARK 610 MISSING HETEROATOM REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 610 I=INSERTION CODE): REMARK 610 M RES C SSEQI REMARK 610 POV C 101 REMARK 610 POV C 102 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-22599 RELATED DB: EMDB REMARK 900 HUMAN SERINE PALMITOYLTRANSFERASE COMPLEX SPTLC1/SPLTC2/SSSPTA REMARK 900 PROTOMER DBREF 7K0J A 1 473 UNP O15269 SPTC1_HUMAN 1 473 DBREF 7K0J B 1 562 UNP O15270 SPTC2_HUMAN 1 562 DBREF 7K0J C 1 71 UNP Q969W0 SPTSA_HUMAN 1 71 SEQRES 1 A 473 MET ALA THR ALA THR GLU GLN TRP VAL LEU VAL GLU MET SEQRES 2 A 473 VAL GLN ALA LEU TYR GLU ALA PRO ALA TYR HIS LEU ILE SEQRES 3 A 473 LEU GLU GLY ILE LEU ILE LEU TRP ILE ILE ARG LEU LEU SEQRES 4 A 473 PHE SER LYS THR TYR LYS LEU GLN GLU ARG SER ASP LEU SEQRES 5 A 473 THR VAL LYS GLU LYS GLU GLU LEU ILE GLU GLU TRP GLN SEQRES 6 A 473 PRO GLU PRO LEU VAL PRO PRO VAL PRO LYS ASP HIS PRO SEQRES 7 A 473 ALA LEU ASN TYR ASN ILE VAL SER GLY PRO PRO SER HIS SEQRES 8 A 473 LYS THR VAL VAL ASN GLY LYS GLU CYS ILE ASN PHE ALA SEQRES 9 A 473 SER PHE ASN PHE LEU GLY LEU LEU ASP ASN PRO ARG VAL SEQRES 10 A 473 LYS ALA ALA ALA LEU ALA SER LEU LYS LYS TYR GLY VAL SEQRES 11 A 473 GLY THR CYS GLY PRO ARG GLY PHE TYR GLY THR PHE ASP SEQRES 12 A 473 VAL HIS LEU ASP LEU GLU ASP ARG LEU ALA LYS PHE MET SEQRES 13 A 473 LYS THR GLU GLU ALA ILE ILE TYR SER TYR GLY PHE ALA SEQRES 14 A 473 THR ILE ALA SER ALA ILE PRO ALA TYR SER LYS ARG GLY SEQRES 15 A 473 ASP ILE VAL PHE VAL ASP ARG ALA ALA CYS PHE ALA ILE SEQRES 16 A 473 GLN LYS GLY LEU GLN ALA SER ARG SER ASP ILE LYS LEU SEQRES 17 A 473 PHE LYS HIS ASN ASP MET ALA ASP LEU GLU ARG LEU LEU SEQRES 18 A 473 LYS GLU GLN GLU ILE GLU ASP GLN LYS ASN PRO ARG LYS SEQRES 19 A 473 ALA ARG VAL THR ARG ARG PHE ILE VAL VAL GLU GLY LEU SEQRES 20 A 473 TYR MET ASN THR GLY THR ILE CYS PRO LEU PRO GLU LEU SEQRES 21 A 473 VAL LYS LEU LYS TYR LYS TYR LYS ALA ARG ILE PHE LEU SEQRES 22 A 473 GLU GLU SER LEU SER PHE GLY VAL LEU GLY GLU HIS GLY SEQRES 23 A 473 ARG GLY VAL THR GLU HIS TYR GLY ILE ASN ILE ASP ASP SEQRES 24 A 473 ILE ASP LEU ILE SER ALA ASN MET GLU ASN ALA LEU ALA SEQRES 25 A 473 SER ILE GLY GLY PHE CYS CYS GLY ARG SER PHE VAL ILE SEQRES 26 A 473 ASP HIS GLN ARG LEU SER GLY GLN GLY TYR CYS PHE SER SEQRES 27 A 473 ALA SER LEU PRO PRO LEU LEU ALA ALA ALA ALA ILE GLU SEQRES 28 A 473 ALA LEU ASN ILE MET GLU GLU ASN PRO GLY ILE PHE ALA SEQRES 29 A 473 VAL LEU LYS GLU LYS CYS GLY GLN ILE HIS LYS ALA LEU SEQRES 30 A 473 GLN GLY ILE SER GLY LEU LYS VAL VAL GLY GLU SER LEU SEQRES 31 A 473 SER PRO ALA PHE HIS LEU GLN LEU GLU GLU SER THR GLY SEQRES 32 A 473 SER ARG GLU GLN ASP VAL ARG LEU LEU GLN GLU ILE VAL SEQRES 33 A 473 ASP GLN CYS MET ASN ARG SER ILE ALA LEU THR GLN ALA SEQRES 34 A 473 ARG TYR LEU GLU LYS GLU GLU LYS CYS LEU PRO PRO PRO SEQRES 35 A 473 SER ILE ARG VAL VAL VAL THR VAL GLU GLN THR GLU GLU SEQRES 36 A 473 GLU LEU GLU ARG ALA ALA SER THR ILE LYS GLU VAL ALA SEQRES 37 A 473 GLN ALA VAL LEU LEU SEQRES 1 B 562 MET ARG PRO GLU PRO GLY GLY CYS CYS CYS ARG ARG THR SEQRES 2 B 562 VAL ARG ALA ASN GLY CYS VAL ALA ASN GLY GLU VAL ARG SEQRES 3 B 562 ASN GLY TYR VAL ARG SER SER ALA ALA ALA ALA ALA ALA SEQRES 4 B 562 ALA ALA ALA GLY GLN ILE HIS HIS VAL THR GLN ASN GLY SEQRES 5 B 562 GLY LEU TYR LYS ARG PRO PHE ASN GLU ALA PHE GLU GLU SEQRES 6 B 562 THR PRO MET LEU VAL ALA VAL LEU THR TYR VAL GLY TYR SEQRES 7 B 562 GLY VAL LEU THR LEU PHE GLY TYR LEU ARG ASP PHE LEU SEQRES 8 B 562 ARG TYR TRP ARG ILE GLU LYS CYS HIS HIS ALA THR GLU SEQRES 9 B 562 ARG GLU GLU GLN LYS ASP PHE VAL SER LEU TYR GLN ASP SEQRES 10 B 562 PHE GLU ASN PHE TYR THR ARG ASN LEU TYR MET ARG ILE SEQRES 11 B 562 ARG ASP ASN TRP ASN ARG PRO ILE CYS SER VAL PRO GLY SEQRES 12 B 562 ALA ARG VAL ASP ILE MET GLU ARG GLN SER HIS ASP TYR SEQRES 13 B 562 ASN TRP SER PHE LYS TYR THR GLY ASN ILE ILE LYS GLY SEQRES 14 B 562 VAL ILE ASN MET GLY SER TYR ASN TYR LEU GLY PHE ALA SEQRES 15 B 562 ARG ASN THR GLY SER CYS GLN GLU ALA ALA ALA LYS VAL SEQRES 16 B 562 LEU GLU GLU TYR GLY ALA GLY VAL CYS SER THR ARG GLN SEQRES 17 B 562 GLU ILE GLY ASN LEU ASP LYS HIS GLU GLU LEU GLU GLU SEQRES 18 B 562 LEU VAL ALA ARG PHE LEU GLY VAL GLU ALA ALA MET ALA SEQRES 19 B 562 TYR GLY MET GLY PHE ALA THR ASN SER MET ASN ILE PRO SEQRES 20 B 562 ALA LEU VAL GLY LYS GLY CYS LEU ILE LEU SER ASP GLU SEQRES 21 B 562 LEU ASN HIS ALA SER LEU VAL LEU GLY ALA ARG LEU SER SEQRES 22 B 562 GLY ALA THR ILE ARG ILE PHE LYS HIS ASN ASN MET GLN SEQRES 23 B 562 SER LEU GLU LYS LEU LEU LYS ASP ALA ILE VAL TYR GLY SEQRES 24 B 562 GLN PRO ARG THR ARG ARG PRO TRP LYS LYS ILE LEU ILE SEQRES 25 B 562 LEU VAL GLU GLY ILE TYR SER MET GLU GLY SER ILE VAL SEQRES 26 B 562 ARG LEU PRO GLU VAL ILE ALA LEU LYS LYS LYS TYR LYS SEQRES 27 B 562 ALA TYR LEU TYR LEU ASP GLU ALA HIS SER ILE GLY ALA SEQRES 28 B 562 LEU GLY PRO THR GLY ARG GLY VAL VAL GLU TYR PHE GLY SEQRES 29 B 562 LEU ASP PRO GLU ASP VAL ASP VAL MET MET GLY THR PHE SEQRES 30 B 562 THR LYS SER PHE GLY ALA SER GLY GLY TYR ILE GLY GLY SEQRES 31 B 562 LYS LYS GLU LEU ILE ASP TYR LEU ARG THR HIS SER HIS SEQRES 32 B 562 SER ALA VAL TYR ALA THR SER LEU SER PRO PRO VAL VAL SEQRES 33 B 562 GLU GLN ILE ILE THR SER MET LYS CYS ILE MET GLY GLN SEQRES 34 B 562 ASP GLY THR SER LEU GLY LYS GLU CYS VAL GLN GLN LEU SEQRES 35 B 562 ALA GLU ASN THR ARG TYR PHE ARG ARG ARG LEU LYS GLU SEQRES 36 B 562 MET GLY PHE ILE ILE TYR GLY ASN GLU ASP SER PRO VAL SEQRES 37 B 562 VAL PRO LEU MET LEU TYR MET PRO ALA LYS ILE GLY ALA SEQRES 38 B 562 PHE GLY ARG GLU MET LEU LYS ARG ASN ILE GLY VAL VAL SEQRES 39 B 562 VAL VAL GLY PHE PRO ALA THR PRO ILE ILE GLU SER ARG SEQRES 40 B 562 ALA ARG PHE CYS LEU SER ALA ALA HIS THR LYS GLU ILE SEQRES 41 B 562 LEU ASP THR ALA LEU LYS GLU ILE ASP GLU VAL GLY ASP SEQRES 42 B 562 LEU LEU GLN LEU LYS TYR SER ARG HIS ARG LEU VAL PRO SEQRES 43 B 562 LEU LEU ASP ARG PRO PHE ASP GLU THR THR TYR GLU GLU SEQRES 44 B 562 THR GLU ASP SEQRES 1 C 71 MET ALA GLY MET ALA LEU ALA ARG ALA TRP LYS GLN MET SEQRES 2 C 71 SER TRP PHE TYR TYR GLN TYR LEU LEU VAL THR ALA LEU SEQRES 3 C 71 TYR MET LEU GLU PRO TRP GLU ARG THR VAL PHE ASN SER SEQRES 4 C 71 MET LEU VAL SER ILE VAL GLY MET ALA LEU TYR THR GLY SEQRES 5 C 71 TYR VAL PHE MET PRO GLN HIS ILE MET ALA ILE LEU HIS SEQRES 6 C 71 TYR PHE GLU ILE VAL GLN HET PLP B 601 15 HET POV C 101 13 HET POV C 102 9 HETNAM PLP PYRIDOXAL-5'-PHOSPHATE HETNAM POV (2S)-3-(HEXADECANOYLOXY)-2-[(9Z)-OCTADEC-9- HETNAM 2 POV ENOYLOXY]PROPYL 2-(TRIMETHYLAMMONIO)ETHYL PHOSPHATE HETSYN PLP VITAMIN B6 PHOSPHATE HETSYN POV POPC FORMUL 4 PLP C8 H10 N O6 P FORMUL 5 POV 2(C42 H82 N O8 P) HELIX 1 AA1 THR A 53 TRP A 64 1 12 HELIX 2 AA2 HIS A 77 ASN A 81 5 5 HELIX 3 AA3 ASN A 114 GLY A 129 1 16 HELIX 4 AA4 PHE A 142 MET A 156 1 15 HELIX 5 AA5 TYR A 166 SER A 179 1 14 HELIX 6 AA6 CYS A 192 SER A 202 1 11 HELIX 7 AA7 ASP A 213 ASN A 231 1 19 HELIX 8 AA8 ASN A 231 ARG A 236 1 6 HELIX 9 AA9 PRO A 256 LYS A 268 1 13 HELIX 10 AB1 GLY A 288 GLY A 294 1 7 HELIX 11 AB2 ARG A 321 ASP A 326 1 6 HELIX 12 AB3 HIS A 327 GLY A 332 1 6 HELIX 13 AB4 GLY A 332 PHE A 337 1 6 HELIX 14 AB5 PRO A 342 ASN A 359 1 18 HELIX 15 AB6 PRO A 360 LEU A 377 1 18 HELIX 16 AB7 SER A 404 ARG A 422 1 19 HELIX 17 AB8 THR A 453 LEU A 472 1 20 HELIX 18 AB9 PRO B 67 TRP B 94 1 28 HELIX 19 AC1 ARG B 105 LYS B 109 5 5 HELIX 20 AC2 GLN B 116 LEU B 126 1 11 HELIX 21 AC3 TYR B 127 TRP B 134 5 8 HELIX 22 AC4 GLY B 186 GLY B 200 1 15 HELIX 23 AC5 LEU B 213 GLY B 228 1 16 HELIX 24 AC6 MET B 237 VAL B 250 1 14 HELIX 25 AC7 HIS B 263 SER B 273 1 11 HELIX 26 AC8 ASN B 284 TYR B 298 1 15 HELIX 27 AC9 ARG B 326 TYR B 337 1 12 HELIX 28 AD1 GLY B 358 PHE B 363 1 6 HELIX 29 AD2 LYS B 391 SER B 402 1 12 HELIX 30 AD3 SER B 402 ALA B 408 1 7 HELIX 31 AD4 SER B 412 MET B 427 1 16 HELIX 32 AD5 SER B 433 GLU B 455 1 23 HELIX 33 AD6 MET B 475 ARG B 489 1 15 HELIX 34 AD7 THR B 517 GLN B 536 1 20 HELIX 35 AD8 ALA C 9 THR C 24 1 16 HELIX 36 AD9 GLU C 30 PHE C 55 1 26 HELIX 37 AE1 GLN C 58 ILE C 69 1 12 SHEET 1 AA1 3 THR A 93 VAL A 95 0 SHEET 2 AA1 3 LYS A 98 ASN A 102 -1 O CYS A 100 N THR A 93 SHEET 3 AA1 3 ILE A 424 ALA A 425 1 O ALA A 425 N ILE A 101 SHEET 1 AA2 7 GLU A 160 TYR A 164 0 SHEET 2 AA2 7 GLY A 316 GLY A 320 -1 O GLY A 320 N GLU A 160 SHEET 3 AA2 7 LEU A 302 ALA A 305 -1 N ILE A 303 O CYS A 319 SHEET 4 AA2 7 ARG A 270 GLU A 274 1 N LEU A 273 O SER A 304 SHEET 5 AA2 7 ARG A 240 GLU A 245 1 N ILE A 242 O PHE A 272 SHEET 6 AA2 7 ILE A 184 VAL A 187 1 N PHE A 186 O PHE A 241 SHEET 7 AA2 7 ASP A 205 ILE A 206 1 O ASP A 205 N VAL A 185 SHEET 1 AA3 4 LEU A 383 VAL A 386 0 SHEET 2 AA3 4 ALA A 393 LEU A 398 -1 O HIS A 395 N VAL A 386 SHEET 3 AA3 4 ILE A 444 VAL A 447 -1 O VAL A 446 N PHE A 394 SHEET 4 AA3 4 THR A 427 GLN A 428 -1 N THR A 427 O ARG A 445 SHEET 1 AA4 3 ARG B 145 SER B 153 0 SHEET 2 AA4 3 PHE B 160 ASN B 172 -1 O LYS B 161 N GLN B 152 SHEET 3 AA4 3 ILE B 491 GLY B 492 1 O GLY B 492 N ILE B 171 SHEET 1 AA5 7 ALA B 231 TYR B 235 0 SHEET 2 AA5 7 GLY B 386 GLY B 390 -1 O GLY B 390 N ALA B 231 SHEET 3 AA5 7 VAL B 372 GLY B 375 -1 N MET B 373 O GLY B 389 SHEET 4 AA5 7 TYR B 340 GLU B 345 1 N LEU B 343 O VAL B 372 SHEET 5 AA5 7 LYS B 309 GLU B 315 1 N ILE B 312 O TYR B 342 SHEET 6 AA5 7 CYS B 254 ASP B 259 1 N LEU B 257 O LEU B 311 SHEET 7 AA5 7 THR B 276 PHE B 280 1 O THR B 276 N ILE B 256 SHEET 1 AA6 3 VAL B 468 MET B 472 0 SHEET 2 AA6 3 ARG B 507 CYS B 511 -1 O ALA B 508 N LEU B 471 SHEET 3 AA6 3 VAL B 494 VAL B 496 -1 N VAL B 494 O ARG B 509 LINK NZ LYS B 379 C4A PLP B 601 1555 1555 1.40 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 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