2009_Book_FoodChemistry

15.2 Individual Constituents 689
Table 15.18. Sequence comparison a of an α-gliadin (clone 1235), γ-gliadin (clone genesA), and a LMW subunit (clone LMWG-1D1)
N-terminal α- 1 VRVPVPQLQPQNPSQQQPQEQVPLMQQQQQFPG
sequences γ- 1 NMQVDPFGQVQWP–QQQPVLL
LMW 1 RC IPGLERPW
Recurring α−Gliadin γ-Gliadin LMW
sequences 34 QQEQ–FP–PQQPYP 11 QQQPLPP
1 b 46 HQQP–FP–SQQPYP 21 PQQPFSQ 18 QQT–FP
58 QPQP–FP–PQLPYP 28 QPQQTFPQ 23 QQPLFS
70 QTQP–FP–PQQPYP 36 PQQTFPH 29 QQQQQQL–FP
82 QPQPQYPQPQQPIS 43 QPQQQFPQ 38 QQPSFS
51 PQQPQQQFLQ 44 QQQPPFW
61 PQQPFPQ 51 QQQPPFS
68 QPQQPYPQ 58 QQQPILP
76 QPQQPFPQ 65 QQPPFS
84 TQQPQQLFPQ 71 QQQQLVLP
94 SQQPQQPYPQ 79 QQPPFS
104 QPQQPFPQ 84 QQQQPVLP
112 TQQPQQQFPQ 93 PQQSP–FP
122 SQQPQ–PFPQ 100 QQQQQH
131 PQQPQQSFPQ 106 QQLV
141 QQPS 110 QQQ–I–P
Poly-Gln α- 96 QQQAQQQQQQQQ
sequences (II)
Sequences α- 108 TLQQILQQQLIPC RDVVLQQHNIAHASSQVL-----QQSSY
low in Pro γ- 145 FIQPSLQQQLNPC KNLLLQQC RPVSLVSSLW–SMIWPQSAC
III LMW 115 VVQPSILQQLNPC KVFLQQQC SPVAMPQRLARSQMLQQSSC
α- QQLQQLCCQQLFQIPEQSRC QAIHNVVHAIIL
γ- QVMRQQCCQQLAQIPQQLQC AAIHSVVHSISM
LMW HVMQQQCCQQLPQIPQQSRYEAIRAIIYSIIL
Sequences α- 176 HHHQQQQQQPSSQVSYQQPQEQYPSGQVSFQSSQQN
high in Gln γ- 216 QEQQQQQQQQQQQQQQQGMRILLPLYQQQQVGQGTL
IV LMW 188 QEQQQVQGSIQSQQQQPQQLGQCVSQPQQQSQQQLGQQPQQQQ
Sequences α- 212 PQAQGSVQPQQLPQFQEIRNLALQTLPAMC NVYIPPYC STTIAPFG
low in Pro γ- 253 VQGQGIIQPQQPAQLEAIRSLVLQTLPTMC NVYVPPEC SIIKAPFA
V LMW 231 LAQGTFLQPHQIAQLEVMTSIALRILPTMC SVNVPLYRTTTSVPFG
C-terminal α- 258 I F G T N
sequences γ- 299 SIVTGIGGQ
LMW 277 VGTGVGAY
a The segments of the recurring and low-proline sequences are arranged according to the best possible homology (–: space to maximize homology). Cysteine residues
(C) are in bold type.
b Roman numerals: division into sequence segments (cf. Fig. 15.10)