SHEET AFTER ROTATION OF THE A AND B SUBUNITS ABOUT THE CRYSTALLOGRAPHIC X AXIS, THE GENERATED C AND ...SHEET AFTER ROTATION OF THE A AND B SUBUNITS ABOUT THE CRYSTALLOGRAPHIC X AXIS, THE GENERATED C AND D SUBUNITS FORM EXTENSIONS TO SHEET 3 IN THE SHEET RECORDS BELOW. THE SYMMETRY-GENERATED SHEET RECORDS ARE PRESENTED AS A REMARK BECAUSE PDB SPECIFICATIONS DO NOT ALLOW THE INCLUSION OF STRANDS WHOSE COORDINATES ARE NOT PRESENTED IN THE ENTRY: EXTENSION TO SHEET 3 OF A SUBUNIT 3A 4 HIS D 9 LEU D 11 -1 N HIS D 9 O VAL A 302 EXTENSION TO SHEET 3 OF B SUBUNIT 3B 4 HIS C 9 LEU C 11 -1 N HIS C 9 O VAL B 302 STRAND 2 OF SHEETS 2A AND 2B IS BIFURCATED. EACH OF THESE IS REPRESENTED BY TWO SHEETS, 2AA AND 2BA AND 2AB AND 2BB BELOW, WHERE THE FIRST STRAND OF 2AA IS IDENTICAL TO THE FIRST STRAND OF 2BA AND THE FIRST STRAND OF 2AB IS IDENTICAL TO THE FIRST STRAND OF 2BB.
TWO LDH SUBUNITS ARE INCLUDED. THE A-SUBUNIT HAS NADH AND SULPHATE IN THE ACTIVE SITE. THE B-SUBUNIT HAS NADH AND OXAMATE IN THE ACTIVE SITE. BOTH SUBUNITS HAVE SULPHATE BOUND AT A REMOTE SITE. THE TRANSFORMATION PRESENTED ON *MTRIX* RECORDS BELOW WILL YIELD APPROXIMATE COORDINATES FOR CHAIN *B* WHEN APPLIED TO CHAIN *A*. THE *SCALE* TRANSFORMATION BELOW GENERATES FRACTIONAL COORDINATES WITH RESPECT TO SPACE GROUP P 21 21 2.
RESIDUES ARE NUMBERED ACCORDING TO THE STANDARD LDH NUMBERING SYSTEM DESCRIBED BY S.S.TAYLOR ET AL. ...RESIDUES ARE NUMBERED ACCORDING TO THE STANDARD LDH NUMBERING SYSTEM DESCRIBED BY S.S.TAYLOR ET AL., IN PROC.NAT.ACAD.SCI.USA V.70 1790 1973.