NZ526148A

Novel glyphosate N-acetyltransferase (GAT) genes

Abstract

An isolated or recombinant polynucleotide encodes a polypeptide that has glycophosate N-acetyl transferase activity and preferably comprises a nucleotide sequence encoding an amino acid sequence consisting of SEQ. ID No.: 300, SEQ. ID No.: 445, or SEQ. ID. No.:457. Methods of producing the polypeptide, or a glyphosate resistant transgenic plant, seed or plant cell comprise (a) transforming a plant or plant cell with a polynucleotide encoding a glyphosate N-acetyltransferase and (b) optionally regenerating a transgenic plant from the transformed plant cell. Methods for selectively controlling weeds in a field containing a crop comprise: (a) planting the field with crop seeds or plants which are glyphosate-tolerant as a result of being transformed with a polynucleotide encoding a glyphosate N-acetyltransferase and (b) applying to the crop and weeds in the field a sufficient amount of glyphosate to control the weeds without significantly affecting the crop. Cells containing the polynucleotides and a transgenic plant, seed or transgenic plant explant that exhibits enhanced resistance to glyphosate as compared to a wild type plant of the same species, strain or cultivar are also described.

NZ526148A, drawing sheet 1
Sheet 1 of 15

Term

Term ended

Projected expiry passed 29 October 2021, 4.9 years ago.

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39 claims: 11 independent, 28 dependent

  1. 1
    Claims 1. An isolated or recombinant polynucleotide that encodes a polypeptide that has glyphosate N-acetyl transferase activity comprising:(a) a nucleotide sequence encoding an amino acid sequence that can be optimally aligned with a sequence selected from the group consisting of SEQ. ED. No.: 300, SEQ. ID. No.: 445 and SEQ. ID. No.: 457 to generate a similarity score of at least 460, using the BLOSUM62 matrix, a gap existence penalty of 11, and a gap extension penalty of 1;or φ) a nucleotide sequence encoding at least 20 contiguous amino acids of an amino acid sequence selected from the group consisting of SEQ. ID. No.: 300, SEQ. ID. No.: 445 and SEQ. ID. No.: 457, or;(c) a nucleotide sequence whose complement hybridizes under stringent conditions over substantially the entire length to a nucleotide sequence that encodes an amino acid sequence selected from the group consisting of SEQ. ID. No.: 300, SEQ. ID. No.: 445 and SEQ. ID. No.: 457, or;(d) a nucleotide sequence that encodes the amino acid sequence of SEQ. ED. Nos.: 6-10 and 263-514, or (e) a nucleotide sequence encodes a polypeptide wherein at least 80% of the positions conform to the following restrictions: (a) at position 2 the amino acid residue is I or L;03) at position 3 the amino acid residue is E or D;(c) at position 4 the amino acid residue is V, A or I;(d) at position 5 the amino acid residue is K, R or N;(e) at position 6 the amino acid residue is P or L;(f) at position 8 the amino acid residue is N, S or T;(g) at position 10 the amino acid residue is E or G;0i) at position 11 the amino acid residue is D or E;0) at position 12 the amino acid residue is T or A;0) at position 14 the amino acid residue is E or K;0i) at position 15 the amino acid residue is I or L;0) at position 17 the amino acid residue is H or Q;(m) at position 18 the amino acid residue is R, C or K;198 IPONZ 3 0 JUL 2003 sd-148920 C/M# 54916-20001.50 (n) at position 19 the amino acid residue is I or V;(o) at position 24 the amino acid residue is Q or R;(p) at position 26 the amino acid residue is L or I;(q) at position 27 the amino acid residue is E or D;(r) at position 28 the amino acid residue is A or V;(s) at position 30 the amino acid residue is K, M or R;(t) at position 31 the amino acid residue is Y or F;(u) at position 32 the amino acid residue is E or G;(v) at position 33 the amino acid residue is T, A or S;(w) at position 35 the amino acid residue is L, S or M;(x) at position 37 the amino acid residue is R, G, E or Q;(y) at position 38 the amino acid residue is G or S;(z) at position 39 the amino acid residue is T, A or S;(aa) at position 40 the amino acid residue is F, L or S;(ab) at position 45 the amino acid residue is Y or F;(ac) at position 47 the amino acid residue is R, Q or G;(ad) at position 48 the amino acid residue is G or D;(ae) at position 49 the amino acid residue is K, R, E or Q;(af) at position 51 the amino acid residue is I or V;(ag) at position 52 the amino acid residue is S, C or G;(ah) at position 53 the amino acid residue is I or T;(ai) at position 54 the amino acid residue is A or V;(aj) at position 57 the amino acid residue is H or N;(ak) at position 58 the amino acid residue is Q, K, N or P;(al) at position 59 the amino acid residue is A or S;(am) at position 60 the amino acid residue is Ε, K, G, V or D;(an) at position 61 the amino acid residue is H or Q;(ao) at position 62 the amino acid residue is P, S or T;(ap) at position 63 the amino acid residue is E, G or D;(aq) at position 65 the amino acid residue is E, D, V or Q;(ar) at position 67 the amino acid residue is Q, E, R, L, H or K;IPONZ 3 0 JUL 2003 199 sd-148920 C/M# 54916-20001.50 (as) at position 68 the amino acid residue is K, R, E, or N;(at) at position 69 the amino acid residue is Q or P;(au) at position 79 the amino acid residue is E or D;(av) at position 80 the amino acid residue is G or E;(aw) at position 81 the amino acid residue is Y, N or F;(ax) at position 82 the amino acid residue is R or H;(ay) at position 83 the amino acid residue is E, G or D;(az) at position 84 the amino acid residue is Q, R or L;(ba) at position 86 the amino acid residue is A or V;(bb) at position 89 the amino acid residue is T or S;(be) at position 90 the amino acid residue is L or I;(bd) at position 91 the amino acid residue is I or V;(be) at position 92 the amino acid residue is R or K;(bf) at position 93 the amino acid residue is Η, Y or Q;(bg) at position 96 the amino acid residue is E, A or Q;(bh) at position 97 the amino acid residue is L or I;(bi) at position 100 the amino acid residue is K, R, N or E;(bj) at position 101 the amino acid residue is K or R;(bk) at position 103 the amino acid residue is A or V;(bl) at position 104 the amino acid residue is D or N;(bm) at position 105 the amino acid residue is L or M;(bn) at position 106 the amino acid residue is L or I;(bo) at position 112 the amino acid residue is T or I;(bp) at position 113 the amino acid residue is S, T or F;(bq) at position 114 the amino acid residue is A or V;(br) at position 115 the amino acid residue is S, R or A;(bs) at position 119 the amino acid residue is K, E or R;(bt) at position 120 the amino acid residue is K or R;(bu) at position 123 the amino acid residue is F or L;(bv) at position 124 the amino acid residue is S or R;(bw) at position 125 the amino acid residue is Ε, K, G or D;200 IPONZ 3 0 JUL 2003 sd-148920 C/M# 54916-20001.50 (bx) at position 126 the amino acid residue is Q or H;(by) at position 128 the amino acid residue is E, G or K;(bz) at position 129 the amino acid residue is V, I or A;(ca) at position 130 the amino acid residue is Y, H, F or C;(cb) at position 131 the amino acid residue is D, G, N or E;(cc) at position 132 the amino acid residue is I, T, A, Μ, V or L;(cd) at position 135 the amino acid residue is V, T, A or I;(ce) at position 138 the amino acid residue is H or Y;(cf) at position 139 the amino acid residue is I or V;(eg) at position 140 the amino acid residue is L or S;(ch) at position 142 the amino acid residue is Y or H;(ci) at position 143 the amino acid residue is K, T or E;(cj) at position 144 the amino acid residue is K, E or R;(ck) at position 145 the amino acid residue is L or I;and (cl) at position 146 the amino acid residue is T or A;(a) at position 9, 76, 94 and 110 the amino acid residue is A;(b) at position 29 and 108 the amino acid residue is C;(c) at position 34 the amino acid residue is D;(d) at position 95 the amino acid residue is E;(e) at position 56 the amino acid residue is F;(f) at position 43,44, 66, 74, 87, 102, 116,122, 127 and 136 foe amino acid residue is G;(g) at position 41 the amino acid residue is H;(h) at position 7 foe amino acid residue is I;(i) at position 85 the amino acid residue is K;(j) at position 20, 36,42, 50, 72, 78, 98 and 121 the amino acid residue is L;(k) at position 1, 75 and 141 the amino acid residue is M;(l) at position 23, 64 and 109 the amino acid residue is N;(m) at position 22, 25,133, 134 and 137 foe amino acid residue is P;(n) at position 71 the amino acid residue is Q;(o) at position 16,21, 73, 99 and 111 the amino acid residue is R;(p) at position 55 and 88 foe amino acid residue is S;IPONZ 3 0 JUL 2003 201 sd-148920 C/M# 54916-20001.50 (q) at position 77 the amino acid residue is T;(r) at position 107 the amino acid residue is W;and (s) at position 13, 46, 70, 117 and 118 the amino acid residue is Y.
  2. 3
    3 0 JUL 2003 202 sd-148920 3. The isolated or recombinant polynucleotide of claim 1 or 2, wherein the polypeptide comprises an amino acid sequence of SEQ. ED. No.:300, SEQ. ID. No.: 445 or SEQ. ID. No.: 457.
  3. 5
    The polynucleotide of any of claims 1 -3, wherein (a) a parental codon has been replaced by a synonymous codon that is preferentially used in plants relative to the parental codon;and/or (b) said polynucleotide further comprises a nucleotide sequence encoding an N-terminal chloroplast transit peptide.
  4. 6
    A nucleic acid construct comprising the polynucleotide of any of claims 1-5, said construct comprising a promoter operably linked to said polynucleotide wherein the promoter is heterologous with respect to the polynucleotide and effective to cause sufficient expression of the encoded polypeptide to enhance the glyphosate tolerance of a plant cell transformed with the nucleic acid construct.
  5. 13
    An isolated or recombinant polypeptide that has glyphosate N-acetyl transferase, activity wherein (a) said polypeptide comprises an amino acid sequence that can be optimally aligned with a sequence selected from the group consisting of SEQ. ID. No.:300, SEQ. ED. No.: 445 and SEQ. ED. No.: 457 to generate a similarity score of at least 460 using the BLOSUM62 matrix, a gap existence penalty of 11, and a gap extension penalty of 1, or (b) said polypeptide comprises at least 20 contiguous amino acids of an amino acid sequence selected from the group consisting of SEQ. ED. No.: 300, SEQ. ID. No.: 445 and SEQ. ID. No.: 457, or (c) said polypeptide is encoded by a nucleotide sequence that hybridizes under stringent conditions over substantially the entire length to the complement of a nucleotide sequence that encodes an amino acid sequence selected from the group consisting of SEQ. ID. No.: 300, SEQ. ID. No.: 445 and SEQ. ID. No.: 457;or (d) said polypeptide has a Km for glyphosate of at least about 2 mM or less;a Km for acetyl CoA of at least about 200 μΜ or less;and a Kcat equal to at least about 6/minute;or (e) at least 80% of the positions of the polypeptide conform to the following restrictions: (a) at position 2 the amino acid residue is I or L;(b) at position 3 the amino acid residue is E or D;204 IPONZ 3 0 JUL 2003 sd-148920 C/M# 54916-20001.50 (c) at position 4 the amino acid residue is V, A or I;(d) at position 5 the amino acid residue is K, R or N;(e) at position 6 the amino acid residue is P or L;(f) at position 8 the amino acid residue is N, S or T;(g) at position 10 the amino acid residue is E or G;(h) at position 11 the amino acid residue is D or E;(i) at position 12 the amino acid residue is T or A;(j) at position 14 the amino acid residue is E or K;(k) at position 15 the amino acid residue is I or L;(l) at position 17 the amino acid residue is H or Q;(m) at position 18 the amino acid residue is R, C or K;(n) at position 19 the amino acid residue is I or V;(o) at position 24 the amino acid residue is Q or R;(p) at position 26 the amino acid residue is L or I;(q) at position 27 the amino acid residue is E or D;(r) at position 28 the amino acid residue is A or V;(s) at position 30 the amino acid residue is K, M or R;(t) at position 31 the amino acid residue is Y or F;(u) at position 32 the amino acid residue is E or G;(v) at position 33 the amino acid residue is T, A or S;(w) at position 35 the amino acid residue is L, S or M;(x) at position 37 the amino acid residue is R, G, E or Q;(y) at position 38 the amino acid residue is G or S;(z) at position 39 the amino acid residue is T, A or S;(aa) at position 40 the amino acid residue is F, L or S;(ab) at position 45 the amino acid residue is Y or F;(ac) at position 47 the amino acid residue is R, Q or G;(ad) at position 48 the amino acid residue is G or D;(ae) at position 49 the amino acid residue is K, R, E or Q;(af) at position 51 the amino acid residue is I or V;(ag) at position 52 the amino acid residue is S, C or G;205 IPONZ 3 0 JUL 2003 sd-148920 C/M# 54916-20001.50 (ah) at position 53 the amino acid residue is I or T;(ai) at position 54 the amino acid residue is A or V;(aj) at position 57 the amino acid residue is H or N;(ak) at position 58 the amino acid residue is Q, K, N or P;(al) at position 59 the amino acid residue is A or S;(am) at position 60 the amino acid residue is Ε, K, G, V or D;(an) at position 61 the amino acid residue is H or Q;(ao) at position 62 the amino acid residue is P, S or T;(ap) at position 63 the amino acid residue is E, G or D;(aq) at position 65 the amino acid residue is E, D, V or Q;(ar) at position 67 the amino acid residue is Q, E, R, L, H or K;(as) at position 68 the amino acid residue is K, R, E, or N;(at) at position 69 the amino acid residue is Q or P;(au) at position 79 the amino acid residue is E or D;(av) at position 80 the amino acid residue is G or E;(aw) at position 81 the amino acid residue is Y, N or F;(ax) at position 82 the amino acid residue is R or H;(ay) at position 83 the amino acid residue is E, G or D;(az) at position 84 the amino acid residue is Q, R or L;(ba) at position 86 the amino acid residue is A or V;(bb) at position 89 the amino acid residue is T or S;(be) at position 90 the amino acid residue is L or I;(bd) at position 91 the amino acid residue is I or V;(be) at position 92 the amino acid residue is R or K;(bf) at position 93 the amino acid residue is Η, Y or Q;(bg) at position 96 the amino acid residue is E, A or Q;(bh) at position 97 the amino acid residue is L or I;(bi) at position 100 the amino acid residue is K, R, N or E;(bj) at position 101 the amino acid residue is K or R;(bk) at position 103 the amino acid residue is A or V;(bl) at position 104 the amino acid residue is D or N;206 IPONZ 3 0 JUL 2003 sd-148920 C/M# 54916-20001.50 (bm) at position 105 the amino acid residue is L or M;(bn) at position 106 the amino acid residue is L or I;(bo) at position 112 the amino acid residue is T or I;(bp) at position 113 the amino acid residue is S, T or F;(bq) at position 114 the amino acid residue is A or V;(br) at position 115 the amino acid residue is S, R or A;(bs) at position 119 the amino acid residue is K, E or R;(bt) at position 120 the amino acid residue is K or R;(bu) at position 123 the amino acid residue is F or L;(bv) at position 124 the amino acid residue is S or R;(bw) at position 125 the amino acid residue is Ε, K, G or D;(bx) at position 126 the amino acid residue is Q or H;(by) at position 128 the amino acid residue is E, G or K;(bz) at position 129 the amino acid residue is V, I or A;(ca) at position 130 the amino acid residue is Y, H, F or C;(cb) at position 131 the amino acid residue is D, G, N or E;(cc) at position 132 the amino acid residue is I, Τ, A, Μ, V or L;(cd) at position 135 the amino acid residue is V, T, A or I;(ce) at position 138 the amino acid residue is H or Y;(cf) at position 139 the amino acid residue is I or V;(eg) at position 140 the amino acid residue is L or S;(ch) at position 142 the amino acid residue is Y or H;(ci) at position 143 the amino acid residue is K, T or E;(cj) at position 144 the amino acid residue is K, E or R;(ck) at position 145 the amino acid residue is L or I;and (cl) at position 146 the amino acid residue is T or A.
  6. 17
    A polypeptide which is specifically bound by a polyclonal antisera raised against an antigen comprising an amino acid sequence selected from the group consisting of SEQ. ID. No.:300, SEQ. ID. No.: 445 and SEQ. ID. No.: 457.
  7. 19
    A method of producing a glyphosate resistant transgenic plant, seed thereof, or plant cell comprising:(a) transforming a plant or plant cell with a polynucleotide encoding a glyphosate N-acetyltransferase;and (b) optionally regenerating a transgenic plant from the transformed plant cell.
  8. 22
    The method of any of claims 19-21, which further comprises propagating said transgenic plant by crossing said transgenic plant with a second plant, such that at least some progeny of the cross display glyphosate tolerance.
  9. 23
    A method for selectively controlling weeds in a field containing a crop comprising:IPONZ 3 0 JUL 2003 209 sd-148920 C/M# 54916-20001.50 (a) planting the field with crop seeds or plants which are glyphosate-tolerant as a result of being transformed with a polynucleotide encoding a glyphosate N-acetyltransferase;and (b) applying to the crop and weeds in the field a sufficient amount of glyphosate to control the weeds without significantly affecting the crop.
  10. 25
    A transgenic plant or transgenic plant explant having an enhanced tolerance to glyphosate, wherein the plant or plant explant expresses a polypeptide with glyphosate N-acetyltransferase activity and (a) at least one polypeptide imparting glyphosate tolerance by an additional mechanism;and/or (b) at least one polypeptide imparting tolerance to an additional herbicide.
  11. 28
    A method for controlling weeds in a field containing a crop comprising:(a) planting the field with crop seeds of, or plants, of any of claims 25-27, and IPONZ 3 0 JUL 2003 210 sd-148920 C/M# 54916-20001.50 (b) applying to the crop and weeds in the field an effective application of glyphosate sufficient to inhibit growth of with weeds in the field without significantly affecting the crop, and (c) optionally, applying to the crop and weeds in the field a simultaneous or chronologically staggered application of glyphosate and optionally an additional herbicide.