HEADER NUCLEAR PROTEIN 27-FEB-25 9M27 TITLE SERF1_HUMAN SHORT ISOFORM OF SMALL EDRK-RICH FACTOR 1, SERF1A AT PH TITLE 2 6.0. COMPND MOL_ID: 1; COMPND 2 MOLECULE: ISOFORM SHORT OF SMALL EDRK-RICH FACTOR 1; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: PROTEIN 4F5,H4F5,SMA MODIFIER 1; COMPND 5 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: SERF1A, FAM2A, SERF1, SMAM1, SERF1B, FAM2B, SERF1, SMAM1; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS INTRINSIC DISORDER PROTEIN, RNA-BINDING PROTEIN AND NEUROLOGICAL KEYWDS 2 DISORDERS., NUCLEAR PROTEIN EXPDTA SOLUTION NMR NUMMDL 100 AUTHOR S.Y.HUANG,O.SHIH,U.S.JENG,C.F.CHANG,J.H.LIN,T.E.MALLIAVIN REVDAT 1 14-JAN-26 9M27 0 JRNL AUTH S.Y.HUANG,O.SHIH,U.S.JENG,C.F.CHANG,J.H.LIN,T.E.MALLIAVIN JRNL TITL PH SENSITIVITY OF THE SERF1A CONFORMATIONAL ENSEMBLE. JRNL REF ACS OMEGA 2026 JRNL REFN ESSN 2470-1343 JRNL DOI 10.1021/ACSOMEGA.5C07620 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CYANA REMARK 3 AUTHORS : GUNTERT, MUMENTHALER AND WUTHRICH REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 9M27 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 28-FEB-25. REMARK 100 THE DEPOSITION ID IS D_1300056826. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 298 REMARK 210 PH : 6.0 REMARK 210 IONIC STRENGTH : 20 REMARK 210 PRESSURE : 1 ATM REMARK 210 SAMPLE CONTENTS : 0.5 MM [U-13C; U-15N] REMARK 210 SERF1_HUMAN SHORT ISOFORM OF REMARK 210 SMALL EDRK-RICH FACTOR 1, SERF1A, REMARK 210 90% H2O/10% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D 1H-15N HSQC; 2D 1H-13C HSQC; REMARK 210 3D CBCA(CO)NH; 3D HNCACB; 3D REMARK 210 HCCH-COSY; 3D HCCH-TOCSY; 3D 1H- REMARK 210 15N TOCSY; 3D 1H-15N NOESY; 3D REMARK 210 1H-13C NOESY; 3D HNCO REMARK 210 SPECTROMETER FIELD STRENGTH : 800 MHZ REMARK 210 SPECTROMETER MODEL : BRUKER AVANCE III REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : CYANA, SPARKY REMARK 210 METHOD USED : DISTANCE GEOMETRY REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 2000 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 100 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LOWEST REMARK 210 ENERGY 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: MONOMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 APPLY THE FOLLOWING TO CHAINS: A 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. (RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 465 SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 MODELS 1-100 REMARK 465 RES C SSSEQI REMARK 465 GLY A -1 REMARK 465 SER A 0 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 LYS A 23 -73.25 -121.18 REMARK 500 1 GLU A 53 -74.34 -61.48 REMARK 500 2 ASN A 5 56.94 -115.75 REMARK 500 2 LYS A 17 -179.27 -63.76 REMARK 500 2 LYS A 23 149.48 -175.06 REMARK 500 2 ARG A 26 95.99 -61.81 REMARK 500 2 LEU A 31 102.59 -53.08 REMARK 500 2 SER A 56 102.53 -56.91 REMARK 500 3 GLN A 19 174.92 -58.12 REMARK 500 3 ARG A 26 36.54 -98.30 REMARK 500 3 LEU A 31 101.86 -54.44 REMARK 500 3 SER A 56 106.84 -52.99 REMARK 500 4 LEU A 31 98.13 -63.69 REMARK 500 5 LYS A 23 51.47 -107.36 REMARK 500 5 LYS A 27 56.00 -103.47 REMARK 500 5 GLU A 53 -72.89 -65.52 REMARK 500 6 LYS A 17 179.29 -57.59 REMARK 500 6 GLN A 19 105.11 -57.09 REMARK 500 6 LEU A 31 105.77 -58.64 REMARK 500 6 SER A 56 102.72 -55.74 REMARK 500 7 ARG A 11 -71.61 -61.40 REMARK 500 7 LYS A 16 36.28 -96.78 REMARK 500 7 THR A 18 149.31 -174.19 REMARK 500 7 LYS A 23 142.50 -173.56 REMARK 500 7 LEU A 31 94.66 -63.36 REMARK 500 7 MET A 57 -175.83 -61.79 REMARK 500 7 GLN A 58 -72.82 -74.54 REMARK 500 7 GLU A 61 -73.22 -66.19 REMARK 500 8 MET A 15 47.87 -96.99 REMARK 500 8 GLU A 20 175.29 -55.70 REMARK 500 8 SER A 56 101.70 -57.61 REMARK 500 9 ALA A 2 -177.09 -60.00 REMARK 500 9 MET A 15 57.04 -94.34 REMARK 500 9 GLN A 19 -176.72 -170.10 REMARK 500 9 GLU A 28 106.95 -51.97 REMARK 500 9 GLU A 53 -70.99 -63.56 REMARK 500 10 THR A 18 172.42 -54.92 REMARK 500 10 SER A 22 173.65 -58.14 REMARK 500 10 LYS A 25 -61.36 -99.14 REMARK 500 10 ARG A 26 44.90 -102.29 REMARK 500 10 LEU A 31 103.78 -54.26 REMARK 500 10 LYS A 54 72.35 -119.01 REMARK 500 10 MET A 57 -175.21 -66.42 REMARK 500 11 ASN A 5 -52.41 -134.82 REMARK 500 11 LYS A 17 96.14 -64.98 REMARK 500 11 GLN A 19 93.55 -65.66 REMARK 500 11 ARG A 26 44.91 -103.61 REMARK 500 11 GLU A 53 -72.63 -60.42 REMARK 500 11 MET A 57 92.87 -65.28 REMARK 500 11 ARG A 60 91.02 -66.74 REMARK 500 REMARK 500 THIS ENTRY HAS 363 RAMACHANDRAN OUTLIERS. REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 36732 RELATED DB: BMRB REMARK 900 SERF1_HUMAN SHORT ISOFORM OF SMALL EDRK-RICH FACTOR 1, SERF1A AT PH REMARK 900 6.0. DBREF 9M27 A 1 62 UNP O75920 SERF1_HUMAN 1 62 SEQADV 9M27 GLY A -1 UNP O75920 EXPRESSION TAG SEQADV 9M27 SER A 0 UNP O75920 EXPRESSION TAG SEQRES 1 A 64 GLY SER MET ALA ARG GLY ASN GLN ARG GLU LEU ALA ARG SEQRES 2 A 64 GLN LYS ASN MET LYS LYS THR GLN GLU ILE SER LYS GLY SEQRES 3 A 64 LYS ARG LYS GLU ASP SER LEU THR ALA SER GLN ARG LYS SEQRES 4 A 64 GLN ARG ASP SER GLU ILE MET GLN GLU LYS GLN LYS ALA SEQRES 5 A 64 ALA ASN GLU LYS LYS SER MET GLN THR ARG GLU LYS HELIX 1 AA1 ASN A 5 MET A 15 1 11 HELIX 2 AA2 LEU A 31 LYS A 54 1 24 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 ENDMDL MODEL 2 ENDMDL MODEL 3 ENDMDL MODEL 4 ENDMDL MODEL 5 ENDMDL MODEL 6 ENDMDL MODEL 7 ENDMDL MODEL 8 ENDMDL MODEL 9 ENDMDL MODEL 10 ENDMDL MODEL 11 ENDMDL MODEL 12 ENDMDL MODEL 13 ENDMDL MODEL 14 ENDMDL MODEL 15 ENDMDL MODEL 16 ENDMDL MODEL 17 ENDMDL MODEL 18 ENDMDL MODEL 19 ENDMDL MODEL 20 ENDMDL MODEL 21 ENDMDL MODEL 22 ENDMDL MODEL 23 ENDMDL MODEL 24 ENDMDL MODEL 25 ENDMDL MODEL 26 ENDMDL MODEL 27 ENDMDL MODEL 28 ENDMDL MODEL 29 ENDMDL MODEL 30 ENDMDL MODEL 31 ENDMDL MODEL 32 ENDMDL MODEL 33 ENDMDL MODEL 34 ENDMDL MODEL 35 ENDMDL MODEL 36 ENDMDL MODEL 37 ENDMDL MODEL 38 ENDMDL MODEL 39 ENDMDL MODEL 40 ENDMDL MODEL 41 ENDMDL MODEL 42 ENDMDL MODEL 43 ENDMDL MODEL 44 ENDMDL MODEL 45 ENDMDL MODEL 46 ENDMDL MODEL 47 ENDMDL MODEL 48 ENDMDL MODEL 49 ENDMDL MODEL 50 ENDMDL MODEL 51 ENDMDL MODEL 52 ENDMDL MODEL 53 ENDMDL MODEL 54 ENDMDL MODEL 55 ENDMDL MODEL 56 ENDMDL MODEL 57 ENDMDL MODEL 58 ENDMDL MODEL 59 ENDMDL MODEL 60 ENDMDL MODEL 61 ENDMDL MODEL 62 ENDMDL MODEL 63 ENDMDL MODEL 64 ENDMDL MODEL 65 ENDMDL MODEL 66 ENDMDL MODEL 67 ENDMDL MODEL 68 ENDMDL MODEL 69 ENDMDL MODEL 70 ENDMDL MODEL 71 ENDMDL MODEL 72 ENDMDL MODEL 73 ENDMDL MODEL 74 ENDMDL MODEL 75 ENDMDL MODEL 76 ENDMDL MODEL 77 ENDMDL MODEL 78 ENDMDL MODEL 79 ENDMDL MODEL 80 ENDMDL MODEL 81 ENDMDL MODEL 82 ENDMDL MODEL 83 ENDMDL MODEL 84 ENDMDL MODEL 85 ENDMDL MODEL 86 ENDMDL MODEL 87 ENDMDL MODEL 88 ENDMDL MODEL 89 ENDMDL MODEL 90 ENDMDL MODEL 91 ENDMDL MODEL 92 ENDMDL MODEL 93 ENDMDL MODEL 94 ENDMDL MODEL 95 ENDMDL MODEL 96 ENDMDL MODEL 97 ENDMDL MODEL 98 ENDMDL MODEL 99 ENDMDL MODEL 100 ENDMDL MASTER 156 0 0 2 0 0 0 6 508 1 0 5 END