BLASTX nr result
ID: Rehmannia22_contig00039653
seq
BLASTX 2.2.25 [Feb-01-2011]
Reference: Altschul, Stephen F., Thomas L. Madden, Alejandro A. Schaffer,
Jinghui Zhang, Zheng Zhang, Webb Miller, and David J. Lipman (1997),
"Gapped BLAST and PSI-BLAST: a new generation of protein database search
programs", Nucleic Acids Res. 25:3389-3402.
Query= Rehmannia22_contig00039653
(334 letters)
Database: ./nr
37,332,560 sequences; 13,225,080,153 total letters
Searching..................................................done
Score E
Sequences producing significant alignments: (bits) Value
gb|EXB74575.1| Pleiotropic drug resistance protein 12 [Morus not... 186 4e-45
gb|EOY26920.1| ABC-2 and Plant PDR ABC-type transporter family p... 179 4e-43
gb|EOY26919.1| ABC-2 and Plant PDR ABC-type transporter family p... 179 4e-43
gb|EOY26918.1| ABC-2 and Plant PDR ABC-type transporter family p... 179 4e-43
gb|EOY26917.1| ABC-2 and Plant PDR ABC-type transporter family p... 179 4e-43
gb|EOY26916.1| ABC-2 and Plant PDR ABC-type transporter family p... 179 4e-43
ref|XP_006343042.1| PREDICTED: ABC transporter G family member 3... 178 6e-43
ref|XP_004235646.1| PREDICTED: ABC transporter G family member 3... 176 2e-42
ref|XP_004305262.1| PREDICTED: ABC transporter G family member 3... 174 8e-42
gb|AFN42938.1| pleiotropic drug resistance transporter 5b [Nicot... 173 2e-41
gb|EPS70689.1| hypothetical protein M569_04071, partial [Genlise... 173 2e-41
gb|EMJ17809.1| hypothetical protein PRUPE_ppa026987mg [Prunus pe... 173 2e-41
gb|AFN42937.1| pleiotropic drug resistance transporter 5a [Nicot... 172 3e-41
gb|AFN42936.1| pleiotropic drug resistance transporter 5 [Nicoti... 170 2e-40
ref|XP_006465685.1| PREDICTED: ABC transporter G family member 3... 170 2e-40
ref|XP_002515971.1| ATP-binding cassette transporter, putative [... 170 2e-40
ref|XP_004158295.1| PREDICTED: pleiotropic drug resistance prote... 169 5e-40
ref|XP_004144266.1| PREDICTED: pleiotropic drug resistance prote... 169 5e-40
ref|XP_006426884.1| hypothetical protein CICLE_v10024701mg [Citr... 167 2e-39
ref|XP_006426883.1| hypothetical protein CICLE_v10024701mg [Citr... 167 2e-39
>gb|EXB74575.1| Pleiotropic drug resistance protein 12 [Morus notabilis]
Length = 1497
Score = 186 bits (471), Expect = 4e-45
Identities = 81/109 (74%), Positives = 97/109 (88%)
Frame = +3
Query: 6 QIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKKW 185
+IP+WW WGYWVSP++Y +NAI+VNEM APRWMNKLASDN TRLGVA+L +F+VFP+K W
Sbjct: 711 KIPNWWVWGYWVSPMSYGFNAISVNEMFAPRWMNKLASDNSTRLGVAVLKSFNVFPDKNW 770
Query: 186 YWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQAREMETNHE 332
YWIG GAL+GF +L NVLFTFALMYL+PLGKPQAIIS+E A+EME + E
Sbjct: 771 YWIGAGALLGFVILLNVLFTFALMYLNPLGKPQAIISEEDAQEMEGDQE 819
>gb|EOY26920.1| ABC-2 and Plant PDR ABC-type transporter family protein isoform 5
[Theobroma cacao]
Length = 1144
Score = 179 bits (453), Expect = 4e-43
Identities = 79/110 (71%), Positives = 93/110 (84%)
Frame = +3
Query: 3 GQIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKK 182
GQIP+WW WGYWVSP++Y +NA VNE+ APRWMNKLASDN TRLGVA+L NF V +K
Sbjct: 405 GQIPNWWEWGYWVSPMSYGFNAFTVNEIYAPRWMNKLASDNVTRLGVAVLRNFDVPNDKN 464
Query: 183 WYWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQAREMETNHE 332
W+WIGV AL+GFT+LFN+LFTFALMYL+PLGK QAIIS+E A E+E HE
Sbjct: 465 WFWIGVAALLGFTVLFNILFTFALMYLNPLGKRQAIISEETAEELEAGHE 514
>gb|EOY26919.1| ABC-2 and Plant PDR ABC-type transporter family protein isoform 4,
partial [Theobroma cacao]
Length = 1144
Score = 179 bits (453), Expect = 4e-43
Identities = 79/110 (71%), Positives = 93/110 (84%)
Frame = +3
Query: 3 GQIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKK 182
GQIP+WW WGYWVSP++Y +NA VNE+ APRWMNKLASDN TRLGVA+L NF V +K
Sbjct: 438 GQIPNWWEWGYWVSPMSYGFNAFTVNEIYAPRWMNKLASDNVTRLGVAVLRNFDVPNDKN 497
Query: 183 WYWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQAREMETNHE 332
W+WIGV AL+GFT+LFN+LFTFALMYL+PLGK QAIIS+E A E+E HE
Sbjct: 498 WFWIGVAALLGFTVLFNILFTFALMYLNPLGKRQAIISEETAEELEAGHE 547
>gb|EOY26918.1| ABC-2 and Plant PDR ABC-type transporter family protein isoform 3
[Theobroma cacao]
Length = 1322
Score = 179 bits (453), Expect = 4e-43
Identities = 79/110 (71%), Positives = 93/110 (84%)
Frame = +3
Query: 3 GQIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKK 182
GQIP+WW WGYWVSP++Y +NA VNE+ APRWMNKLASDN TRLGVA+L NF V +K
Sbjct: 536 GQIPNWWEWGYWVSPMSYGFNAFTVNEIYAPRWMNKLASDNVTRLGVAVLRNFDVPNDKN 595
Query: 183 WYWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQAREMETNHE 332
W+WIGV AL+GFT+LFN+LFTFALMYL+PLGK QAIIS+E A E+E HE
Sbjct: 596 WFWIGVAALLGFTVLFNILFTFALMYLNPLGKRQAIISEETAEELEAGHE 645
>gb|EOY26917.1| ABC-2 and Plant PDR ABC-type transporter family protein isoform 2
[Theobroma cacao]
Length = 1455
Score = 179 bits (453), Expect = 4e-43
Identities = 79/110 (71%), Positives = 93/110 (84%)
Frame = +3
Query: 3 GQIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKK 182
GQIP+WW WGYWVSP++Y +NA VNE+ APRWMNKLASDN TRLGVA+L NF V +K
Sbjct: 669 GQIPNWWEWGYWVSPMSYGFNAFTVNEIYAPRWMNKLASDNVTRLGVAVLRNFDVPNDKN 728
Query: 183 WYWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQAREMETNHE 332
W+WIGV AL+GFT+LFN+LFTFALMYL+PLGK QAIIS+E A E+E HE
Sbjct: 729 WFWIGVAALLGFTVLFNILFTFALMYLNPLGKRQAIISEETAEELEAGHE 778
>gb|EOY26916.1| ABC-2 and Plant PDR ABC-type transporter family protein isoform 1
[Theobroma cacao]
Length = 1494
Score = 179 bits (453), Expect = 4e-43
Identities = 79/110 (71%), Positives = 93/110 (84%)
Frame = +3
Query: 3 GQIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKK 182
GQIP+WW WGYWVSP++Y +NA VNE+ APRWMNKLASDN TRLGVA+L NF V +K
Sbjct: 708 GQIPNWWEWGYWVSPMSYGFNAFTVNEIYAPRWMNKLASDNVTRLGVAVLRNFDVPNDKN 767
Query: 183 WYWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQAREMETNHE 332
W+WIGV AL+GFT+LFN+LFTFALMYL+PLGK QAIIS+E A E+E HE
Sbjct: 768 WFWIGVAALLGFTVLFNILFTFALMYLNPLGKRQAIISEETAEELEAGHE 817
>ref|XP_006343042.1| PREDICTED: ABC transporter G family member 36-like [Solanum
tuberosum]
Length = 1500
Score = 178 bits (452), Expect = 6e-43
Identities = 77/110 (70%), Positives = 91/110 (82%)
Frame = +3
Query: 3 GQIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKK 182
G IPDWW WG+WVSPL+Y +NA VNEM APRWMN+ ASD TRLG+ ++ NF VF EK+
Sbjct: 713 GSIPDWWRWGFWVSPLSYGFNAFTVNEMFAPRWMNRPASDGITRLGMQVMRNFDVFAEKR 772
Query: 183 WYWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQAREMETNHE 332
W+WIG AL+GFT+LFNVLFTF LMYLSPL KPQAI+SKEQAR+ME + E
Sbjct: 773 WFWIGAAALLGFTILFNVLFTFVLMYLSPLNKPQAILSKEQARDMEADQE 822
>ref|XP_004235646.1| PREDICTED: ABC transporter G family member 36-like [Solanum
lycopersicum]
Length = 1500
Score = 176 bits (447), Expect = 2e-42
Identities = 76/110 (69%), Positives = 90/110 (81%)
Frame = +3
Query: 3 GQIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKK 182
G IPDWW WG+WVSPL+Y +NA VNEM APRWMN+ ASD TRLGV ++ +F VF EK+
Sbjct: 713 GSIPDWWQWGFWVSPLSYGFNAFTVNEMFAPRWMNRAASDGITRLGVQVMRSFDVFAEKR 772
Query: 183 WYWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQAREMETNHE 332
W+WIG AL+GF +LFNVLFTF LMYLSPL KPQAI+SKEQAR+ME + E
Sbjct: 773 WFWIGAAALLGFAILFNVLFTFVLMYLSPLNKPQAILSKEQARDMEADQE 822
>ref|XP_004305262.1| PREDICTED: ABC transporter G family member 36-like [Fragaria vesca
subsp. vesca]
Length = 1489
Score = 174 bits (442), Expect = 8e-42
Identities = 77/110 (70%), Positives = 91/110 (82%)
Frame = +3
Query: 3 GQIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKK 182
G IP WW WGYWVSPLTY +NAIAVNEM +PRWMNKLASDN TRLGVA+L NF VFP+K
Sbjct: 702 GDIPKWWQWGYWVSPLTYGFNAIAVNEMFSPRWMNKLASDNVTRLGVAVLQNFEVFPDKN 761
Query: 183 WYWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQAREMETNHE 332
W+WIG A++GF +LFN+L+T +LM+LSP GK QAIIS+E A EME + E
Sbjct: 762 WFWIGSAAMLGFAILFNILYTLSLMHLSPPGKSQAIISEELAEEMEGDQE 811
>gb|AFN42938.1| pleiotropic drug resistance transporter 5b [Nicotiana tabacum]
Length = 1498
Score = 173 bits (439), Expect = 2e-41
Identities = 74/110 (67%), Positives = 87/110 (79%)
Frame = +3
Query: 3 GQIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKK 182
G IPDWW WGYWVSPL+Y +NA VNEM APRWMNK A D TRLG+ ++ NF VF E++
Sbjct: 711 GSIPDWWRWGYWVSPLSYGFNAFTVNEMFAPRWMNKFAPDGTTRLGLQVMKNFDVFTERR 770
Query: 183 WYWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQAREMETNHE 332
W+WIG AL+GFT+LFNVLFT LMYLSPL KPQA +SKEQA +ME + E
Sbjct: 771 WFWIGAAALLGFTILFNVLFTLVLMYLSPLNKPQATLSKEQASDMEADQE 820
>gb|EPS70689.1| hypothetical protein M569_04071, partial [Genlisea aurea]
Length = 493
Score = 173 bits (438), Expect = 2e-41
Identities = 76/111 (68%), Positives = 90/111 (81%), Gaps = 2/111 (1%)
Frame = +3
Query: 6 QIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKKW 185
QIP WW WGYW+SPL+Y YNAI +NEM APRWMN+ ASD T LG+A+L +F +F + W
Sbjct: 57 QIPVWWRWGYWISPLSYGYNAIVINEMFAPRWMNRRASDGSTSLGIAVLKHFDIFTDSYW 116
Query: 186 YWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQ--AREMETNHE 332
YWIGVG + GFTLLFNVLFTFALMYL+PLGKPQA+ISKE+ A EM+ HE
Sbjct: 117 YWIGVGVVAGFTLLFNVLFTFALMYLNPLGKPQAVISKEEKMAMEMKAAHE 167
>gb|EMJ17809.1| hypothetical protein PRUPE_ppa026987mg [Prunus persica]
Length = 1493
Score = 173 bits (438), Expect = 2e-41
Identities = 75/110 (68%), Positives = 92/110 (83%)
Frame = +3
Query: 3 GQIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKK 182
G+IP WW WGYWVSP+TY +NA+ VNEM +PRWMNKLASDN T LGVA+LNNF+V+P++
Sbjct: 706 GEIPKWWIWGYWVSPMTYGFNAMTVNEMYSPRWMNKLASDNVTSLGVAVLNNFNVYPDQY 765
Query: 183 WYWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQAREMETNHE 332
WYWIG A++GF +LFNVL+T ALMYL+ GKPQAIIS+E A EME + E
Sbjct: 766 WYWIGAAAILGFAILFNVLYTLALMYLNAPGKPQAIISEEVANEMEADQE 815
>gb|AFN42937.1| pleiotropic drug resistance transporter 5a [Nicotiana tabacum]
Length = 1498
Score = 172 bits (437), Expect = 3e-41
Identities = 73/110 (66%), Positives = 86/110 (78%)
Frame = +3
Query: 3 GQIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKK 182
G IPDWW WGYW+SPL+Y +NA VNEM APRWMNK A D TRLG+ ++ NF VF E++
Sbjct: 711 GSIPDWWRWGYWISPLSYGFNAFTVNEMFAPRWMNKFAPDGTTRLGLQVMKNFGVFTERR 770
Query: 183 WYWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQAREMETNHE 332
W+WIG AL+GFT+LFNVLFT LMYLSPL KPQA +SKEQA +ME E
Sbjct: 771 WFWIGAAALLGFTILFNVLFTLVLMYLSPLNKPQATLSKEQASDMEAEQE 820
>gb|AFN42936.1| pleiotropic drug resistance transporter 5 [Nicotiana plumbaginifolia]
Length = 1498
Score = 170 bits (431), Expect = 2e-40
Identities = 72/110 (65%), Positives = 86/110 (78%)
Frame = +3
Query: 3 GQIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKK 182
G IPDWW WGYWVSPL+Y +NA VNEM APRWMNK D TRLG+ ++ NF VF E++
Sbjct: 711 GSIPDWWRWGYWVSPLSYGFNAFTVNEMFAPRWMNKFGPDGTTRLGLQVMKNFDVFTERR 770
Query: 183 WYWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQAREMETNHE 332
W+WIG AL+GFT+LFNVLFT L+YLSPL KPQA +SKEQA +ME + E
Sbjct: 771 WFWIGAAALLGFTILFNVLFTLVLVYLSPLNKPQATLSKEQASDMEADQE 820
>ref|XP_006465685.1| PREDICTED: ABC transporter G family member 36-like isoform X1 [Citrus
sinensis] gi|568822535|ref|XP_006465686.1| PREDICTED: ABC
transporter G family member 36-like isoform X2 [Citrus
sinensis]
Length = 1504
Score = 170 bits (430), Expect = 2e-40
Identities = 75/110 (68%), Positives = 86/110 (78%)
Frame = +3
Query: 3 GQIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKK 182
GQIP+WW WGYWVSPL Y YNA AVNEM APRWMN+LASDN T+LG A+LNNF + +
Sbjct: 717 GQIPNWWEWGYWVSPLAYGYNAFAVNEMYAPRWMNRLASDNVTKLGAAVLNNFDIPAHRD 776
Query: 183 WYWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQAREMETNHE 332
WYWIG AL GF +LFNVLFTF LMYL+P GKPQA++S+E A EM E
Sbjct: 777 WYWIGAAALSGFIVLFNVLFTFTLMYLNPPGKPQAVLSEEAAAEMVAEQE 826
>ref|XP_002515971.1| ATP-binding cassette transporter, putative [Ricinus communis]
gi|223544876|gb|EEF46391.1| ATP-binding cassette
transporter, putative [Ricinus communis]
Length = 1462
Score = 170 bits (430), Expect = 2e-40
Identities = 74/105 (70%), Positives = 85/105 (80%)
Frame = +3
Query: 6 QIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKKW 185
QIP+WW W YW+SPL+Y YNA A+NEM APRWMNK A+DN T LG+A+L NF VF K W
Sbjct: 711 QIPNWWEWAYWISPLSYGYNAFAINEMYAPRWMNKRAADNSTSLGIAVLKNFDVFQNKNW 770
Query: 186 YWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQAREME 320
YWIG GAL+GF +LFNVLFT ALMYLSP GK QA+IS+E A EME
Sbjct: 771 YWIGAGALLGFAILFNVLFTLALMYLSPPGKKQAVISEETAMEME 815
>ref|XP_004158295.1| PREDICTED: pleiotropic drug resistance protein 12-like [Cucumis
sativus]
Length = 1484
Score = 169 bits (427), Expect = 5e-40
Identities = 68/106 (64%), Positives = 88/106 (83%)
Frame = +3
Query: 3 GQIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKK 182
G IP WW WGYW+SP+TY+YNAI+VNEM APRWM +LASDN+T LG+A+L NF +F ++
Sbjct: 704 GDIPKWWTWGYWISPMTYSYNAISVNEMFAPRWMKRLASDNKTPLGLAVLKNFDIFQDRN 763
Query: 183 WYWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQAREME 320
W+WIG GAL+G +LFNVLFT ALMYL+P G+PQAI+S+E E++
Sbjct: 764 WFWIGAGALLGLAILFNVLFTLALMYLNPFGRPQAIVSRESTEELD 809
>ref|XP_004144266.1| PREDICTED: pleiotropic drug resistance protein 12-like [Cucumis
sativus]
Length = 1452
Score = 169 bits (427), Expect = 5e-40
Identities = 68/106 (64%), Positives = 88/106 (83%)
Frame = +3
Query: 3 GQIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKK 182
G IP WW WGYW+SP+TY+YNAI+VNEM APRWM +LASDN+T LG+A+L NF +F ++
Sbjct: 672 GDIPKWWTWGYWISPMTYSYNAISVNEMFAPRWMKRLASDNKTPLGLAVLKNFDIFQDRN 731
Query: 183 WYWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQAREME 320
W+WIG GAL+G +LFNVLFT ALMYL+P G+PQAI+S+E E++
Sbjct: 732 WFWIGAGALLGLAILFNVLFTLALMYLNPFGRPQAIVSRESTEELD 777
>ref|XP_006426884.1| hypothetical protein CICLE_v10024701mg [Citrus clementina]
gi|557528874|gb|ESR40124.1| hypothetical protein
CICLE_v10024701mg [Citrus clementina]
Length = 1509
Score = 167 bits (422), Expect = 2e-39
Identities = 74/110 (67%), Positives = 85/110 (77%)
Frame = +3
Query: 3 GQIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKK 182
GQIP+WW WGYWVSPL Y YNA AVNEM A RWMN+LASDN T+LG A+LNNF + +
Sbjct: 722 GQIPNWWEWGYWVSPLAYGYNAFAVNEMYASRWMNRLASDNVTKLGAAVLNNFDIPAHRD 781
Query: 183 WYWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQAREMETNHE 332
WYWIG AL GF +LFNVLFTF LMYL+P GKPQA++S+E A EM E
Sbjct: 782 WYWIGAAALSGFIVLFNVLFTFTLMYLNPPGKPQAVLSEEAAAEMVAEQE 831
>ref|XP_006426883.1| hypothetical protein CICLE_v10024701mg [Citrus clementina]
gi|557528873|gb|ESR40123.1| hypothetical protein
CICLE_v10024701mg [Citrus clementina]
Length = 1276
Score = 167 bits (422), Expect = 2e-39
Identities = 74/110 (67%), Positives = 85/110 (77%)
Frame = +3
Query: 3 GQIPDWWGWGYWVSPLTYAYNAIAVNEMLAPRWMNKLASDNRTRLGVAILNNFSVFPEKK 182
GQIP+WW WGYWVSPL Y YNA AVNEM A RWMN+LASDN T+LG A+LNNF + +
Sbjct: 722 GQIPNWWEWGYWVSPLAYGYNAFAVNEMYASRWMNRLASDNVTKLGAAVLNNFDIPAHRD 781
Query: 183 WYWIGVGALVGFTLLFNVLFTFALMYLSPLGKPQAIISKEQAREMETNHE 332
WYWIG AL GF +LFNVLFTF LMYL+P GKPQA++S+E A EM E
Sbjct: 782 WYWIGAAALSGFIVLFNVLFTFTLMYLNPPGKPQAVLSEEAAAEMVAEQE 831