REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : INSIGHT II 98 REMARK 3 AUTHORS : REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2756 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 0 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2QTJ COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 06-AUG-07. REMARK 100 THE RCSB ID CODE IS RCSB044036. REMARK 265 REMARK 265 EXPERIMENTAL DETAILS REMARK 265 REMARK 265 EXPERIMENT TYPE : SMALL ANGLE X-RAY SCATTERING REMARK 265 DATA ACQUISITION REMARK 265 RADIATION/NEUTRON SOURCE : ESRF GRENOBLE REMARK 265 SYNCHROTRON (Y/N) : Y REMARK 265 BEAMLINE TYPE : IDO2 REMARK 265 BEAMLINE INSTRUMENT : NULL REMARK 265 DETECTOR TYPE : FRELON CCD CAMERA REMARK 265 DETECTOR MANUFACTURER DETAILS : NULL REMARK 265 TEMPERATURE (KELVIN) : 288 REMARK 265 PH : 7.5 REMARK 265 NUMBER OF TIME FRAMES USED : 10 REMARK 265 PROTEIN CONCENTRATION RANGE (MG/ML) : 0.58-1.16 REMARK 265 SAMPLE BUFFER : 140 MM NACL 12.5 REMARK 265 MM NAHPO4 0.5 MM REMARK 265 EDTA 0.02% NA AZIDE REMARK 265 DATA REDUCTION SOFTWARE : MULTICCD REMARK 265 GUINIER MEAN RADIUS OF GYRATION (NM) : 8.65 REMARK 265 SIGMA MEAN RADIUS OF GYRATION : 0.27 REMARK 265 R(XS-1) MEAN CROSS SECTIONAL RADII (NM) : 3.94 REMARK 265 R(XS-1) SIGMA MEAN CROSS SECTIONAL RADII : 0.18 REMARK 265 R(XS-2) MEAN CROSS SECTIONAL RADII (NM) : 1.43 REMARK 265 R(XS-2) SIGMA MEAN CROSS SECTIONAL RADII : 0.07 REMARK 265 P(R) PROTEIN LENGTH (NM) : 1 REMARK 265 REMARK 265 EXPERIMENT TYPE : SMALL ANGLE NEUTRON SCATTERING REMARK 265 DATA ACQUISITION REMARK 265 RADIATION/NEUTRON SOURCE : ISIS RUTHERFORD- REMARK 265 APPLETON LAB REMARK 265 SYNCHROTRON (Y/N) : Y REMARK 265 BEAMLINE TYPE : LOQ REMARK 265 BEAMLINE INSTRUMENT : NULL REMARK 265 DETECTOR TYPE : HE-3 ORDELA REMARK 265 DETECTOR REMARK 265 DETECTOR MANUFACTURER DETAILS : NULL REMARK 265 TEMPERATURE (KELVIN) : 288 REMARK 265 PH : 7.5 REMARK 265 NUMBER OF TIME FRAMES USED : 1 REMARK 265 PROTEIN CONCENTRATION RANGE (MG/ML) : 0.83-1.16 REMARK 265 SAMPLE BUFFER : 140 MM NACL 12.5 REMARK 265 MM NAHPO4 0.5 MM REMARK 265 EDTA 0.02% NA AZIDE REMARK 265 DATA REDUCTION SOFTWARE : COLETTE REMARK 265 GUINIER MEAN RADIUS OF GYRATION (NM) : 7.60 REMARK 265 SIGMA MEAN RADIUS OF GYRATION : 0.05 REMARK 265 R(XS-1) MEAN CROSS SECTIONAL RADII (NM) : NULL REMARK 265 R(XS-1) SIGMA MEAN CROSS SECTIONAL RADII : NULL REMARK 265 R(XS-2) MEAN CROSS SECTIONAL RADII (NM) : NULL REMARK 265 R(XS-2) SIGMA MEAN CROSS SECTIONAL RADII : NULL REMARK 265 P(R) PROTEIN LENGTH (NM) : 1 REMARK 265 REMARK 265 DATA ANALYSIS AND MODEL FITTING: REMARK 265 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 265 SOFTWARE USED : INSIGHT II, SCTPL7, GNOM REMARK 265 SOFTWARE AUTHORS : NULL REMARK 265 STARTING MODEL : NULL REMARK 265 REMARK 265 CONFORMERS, NUMBER CALCULATED : NULL REMARK 265 CONFORMERS, NUMBER SUBMITTED : 10 REMARK 265 CONFORMERS, SELECTION CRITERIA : NULL REMARK 265 REMARK 265 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 REMARK 265 REMARK 265 OTHER DETAILS: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 300 REMARK: TWO LIGHT CHAINS (L AND M OR N AND O) BIND TO TWO HEAVY REMARK 300 CHAINS (A AND B OR C AND D) WITHIN EACH IGA MONOMER. TWO IGA REMARK 300 MONOMERS THEN FORM THE DIMERIC IGA MOLECULE. 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: TETRAMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: L, M, 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 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TETRAMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: N, O, C, D 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: 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 CA SER C 243 CA SER D 243 1.41 REMARK 500 CA SER A 243 CA SER B 243 1.42 REMARK 500 CA VAL A 144 CA PRO A 226 2.07 REMARK 500 CA VAL C 144 CA PRO C 226 2.07 REMARK 500 CA VAL D 144 CA PRO D 226 2.19 REMARK 500 CA VAL B 144 CA PRO B 226 2.19 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1IGA RELATED DB: PDB REMARK 900 HUMAN IMMUNOGLOBULIN A REMARK 900 RELATED ID: 2ESG RELATED DB: PDB REMARK 900 HUMAN MYELOMA IGA1-HUMAN SERUM ALBUMIN COMPLEX