BLASTX nr result
ID: Ziziphus21_contig00044943
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= Ziziphus21_contig00044943 (354 letters) Database: ./nr 77,306,371 sequences; 28,104,191,420 total letters Searching..................................................done Score E Sequences producing significant alignments: (bits) Value dbj|BAN20618.1| non-specific lipid-transfer protein-like [Riptor... 168 1e-39 ref|XP_014282388.1| PREDICTED: non-specific lipid-transfer prote... 168 2e-39 ref|XP_011499651.1| PREDICTED: non-specific lipid-transfer prote... 164 2e-38 ref|XP_001607735.2| PREDICTED: non-specific lipid-transfer prote... 164 2e-38 ref|XP_011296998.1| PREDICTED: non-specific lipid-transfer prote... 164 3e-38 ref|XP_014256751.1| PREDICTED: non-specific lipid-transfer prote... 162 7e-38 ref|XP_012055490.1| PREDICTED: non-specific lipid-transfer prote... 160 3e-37 ref|XP_011066777.1| PREDICTED: non-specific lipid-transfer prote... 160 3e-37 ref|XP_011442760.1| PREDICTED: non-specific lipid-transfer prote... 159 6e-37 gb|EKC31331.1| Non-specific lipid-transfer protein [Crassostrea ... 159 6e-37 ref|XP_014231366.1| PREDICTED: non-specific lipid-transfer prote... 158 1e-36 ref|XP_014231365.1| PREDICTED: non-specific lipid-transfer prote... 158 1e-36 ref|XP_012264313.1| PREDICTED: non-specific lipid-transfer prote... 158 1e-36 ref|XP_011329453.1| PREDICTED: non-specific lipid-transfer prote... 158 1e-36 ref|XP_012340820.1| PREDICTED: non-specific lipid-transfer prote... 158 2e-36 ref|XP_013775097.1| PREDICTED: non-specific lipid-transfer prote... 156 5e-36 ref|XP_006569483.1| PREDICTED: non-specific lipid-transfer prote... 156 6e-36 ref|XP_006615389.1| PREDICTED: non-specific lipid-transfer prote... 156 6e-36 ref|XP_006569482.1| PREDICTED: non-specific lipid-transfer prote... 156 6e-36 ref|XP_003396579.1| PREDICTED: non-specific lipid-transfer prote... 155 8e-36 >dbj|BAN20618.1| non-specific lipid-transfer protein-like [Riptortus pedestris] Length = 542 Score = 168 bits (426), Expect = 1e-39 Identities = 81/104 (77%), Positives = 90/104 (86%) Frame = -2 Query: 314 SPIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNAPKV 135 SPI AQLF AG+EHM KYG+ E LAKIAYKNHKHS NNPYSQFQEEYSLE+I+N+PKV Sbjct: 148 SPITAQLFGNAGKEHMTKYGSKPEHLAKIAYKNHKHSKNNPYSQFQEEYSLEEIINSPKV 207 Query: 134 SGPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 GPLTKLQCCPTSDGAAAAIL +E+FV R+ LQ AVEILG+EM Sbjct: 208 FGPLTKLQCCPTSDGAAAAILVNEEFVFRHGLQDQAVEILGMEM 251 >ref|XP_014282388.1| PREDICTED: non-specific lipid-transfer protein [Halyomorpha halys] Length = 543 Score = 168 bits (425), Expect = 2e-39 Identities = 80/104 (76%), Positives = 92/104 (88%) Frame = -2 Query: 314 SPIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNAPKV 135 SPI AQLF AG+EHM KYGTTAE LAKIA KNHKHS NNPYSQFQEEY+LE+IL +PKV Sbjct: 148 SPITAQLFGNAGKEHMMKYGTTAEHLAKIALKNHKHSKNNPYSQFQEEYTLEEILKSPKV 207 Query: 134 SGPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 GPLTKLQCCPTSDG+AAA+LA+E+FV+R+ LQ AVEI+G+EM Sbjct: 208 FGPLTKLQCCPTSDGSAAAVLANEEFVIRHGLQDKAVEIVGMEM 251 >ref|XP_011499651.1| PREDICTED: non-specific lipid-transfer protein-like [Ceratosolen solmsi marchali] Length = 547 Score = 164 bits (415), Expect = 2e-38 Identities = 76/104 (73%), Positives = 89/104 (85%) Frame = -2 Query: 314 SPIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNAPKV 135 SPI AQ+F AG EHM KYGT E AKIAYKNH HS NNPYSQFQ +Y+LE+I+N+PK+ Sbjct: 148 SPITAQMFGNAGIEHMNKYGTKPEHFAKIAYKNHLHSTNNPYSQFQNKYTLEEIINSPKI 207 Query: 134 SGPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 GPLTKLQCCPTSDG+AAA+LA+EDFV ++NLQK AVEILG+EM Sbjct: 208 FGPLTKLQCCPTSDGSAAAVLANEDFVTKHNLQKQAVEILGMEM 251 >ref|XP_001607735.2| PREDICTED: non-specific lipid-transfer protein-like [Nasonia vitripennis] gi|644999654|ref|XP_008215657.1| PREDICTED: non-specific lipid-transfer protein-like [Nasonia vitripennis] gi|644999656|ref|XP_008215658.1| PREDICTED: non-specific lipid-transfer protein-like [Nasonia vitripennis] Length = 549 Score = 164 bits (415), Expect = 2e-38 Identities = 77/104 (74%), Positives = 89/104 (85%) Frame = -2 Query: 314 SPIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNAPKV 135 SPI AQLF AG EHMKKYGT E AKIAYKNH HS+NNPYSQFQ++Y+LEQI+N+PKV Sbjct: 148 SPITAQLFGNAGIEHMKKYGTKPEHFAKIAYKNHMHSVNNPYSQFQDKYTLEQIMNSPKV 207 Query: 134 SGPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 GPLTKLQCCPTSDG+AA ILA+EDFV R+ L+ AVEI+G+EM Sbjct: 208 FGPLTKLQCCPTSDGSAAVILANEDFVRRHRLENQAVEIVGMEM 251 >ref|XP_011296998.1| PREDICTED: non-specific lipid-transfer protein-like [Fopius arisanus] gi|755937188|ref|XP_011296999.1| PREDICTED: non-specific lipid-transfer protein-like [Fopius arisanus] gi|755937191|ref|XP_011297000.1| PREDICTED: non-specific lipid-transfer protein-like [Fopius arisanus] Length = 539 Score = 164 bits (414), Expect = 3e-38 Identities = 79/104 (75%), Positives = 90/104 (86%) Frame = -2 Query: 314 SPIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNAPKV 135 SPI AQLF A EHM+KYGT+ + LAKIAYKNH+HS+NNPYSQFQE+YSLEQI N+PKV Sbjct: 148 SPITAQLFGNAAIEHMQKYGTSPDHLAKIAYKNHQHSVNNPYSQFQEKYSLEQIKNSPKV 207 Query: 134 SGPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 GPLTKLQCCPTSDG+AAAILA+EDFV R+NL AVEIL +EM Sbjct: 208 FGPLTKLQCCPTSDGSAAAILANEDFVRRHNLYGQAVEILAMEM 251 >ref|XP_014256751.1| PREDICTED: non-specific lipid-transfer protein [Cimex lectularius] Length = 542 Score = 162 bits (411), Expect = 7e-38 Identities = 78/107 (72%), Positives = 88/107 (82%) Frame = -2 Query: 323 LPISPIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNA 144 L SPI AQLF AG EHM+KYGT E LAKIAYKNHKHS NNPYSQFQ EYSL+ I+ + Sbjct: 144 LDASPITAQLFGNAGLEHMEKYGTKPEHLAKIAYKNHKHSTNNPYSQFQTEYSLDDIMKS 203 Query: 143 PKVSGPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 P V GPLTKLQCCPTSDGAAAA+L +EDFV+R+ LQ AVEI+G+EM Sbjct: 204 PTVFGPLTKLQCCPTSDGAAAAVLCNEDFVIRHGLQDKAVEIVGMEM 250 >ref|XP_012055490.1| PREDICTED: non-specific lipid-transfer protein [Atta cephalotes] Length = 540 Score = 160 bits (406), Expect = 3e-37 Identities = 76/104 (73%), Positives = 89/104 (85%) Frame = -2 Query: 314 SPIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNAPKV 135 SPIAAQ+F AG EHMKKYGT E AKIAYKNH HSINNP SQFQE+Y+L+QI+N+PK+ Sbjct: 148 SPIAAQMFGNAGIEHMKKYGTKLEHFAKIAYKNHLHSINNPNSQFQEKYTLQQIMNSPKI 207 Query: 134 SGPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 GPLTKLQCCPTSDGAAA ILA+EDFV +++L+ AVEIL +EM Sbjct: 208 FGPLTKLQCCPTSDGAAAVILANEDFVYKHHLESQAVEILAMEM 251 >ref|XP_011066777.1| PREDICTED: non-specific lipid-transfer protein [Acromyrmex echinatior] gi|332016876|gb|EGI57685.1| Non-specific lipid-transfer protein [Acromyrmex echinatior] Length = 540 Score = 160 bits (406), Expect = 3e-37 Identities = 76/104 (73%), Positives = 89/104 (85%) Frame = -2 Query: 314 SPIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNAPKV 135 SPIAAQ+F AG EHMKKYGT E AKIAYKNH HSINNP SQFQE+Y+L+QI+N+PK+ Sbjct: 148 SPIAAQMFGNAGIEHMKKYGTKLEHFAKIAYKNHLHSINNPNSQFQEKYTLQQIMNSPKI 207 Query: 134 SGPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 GPLTKLQCCPTSDGAAA ILA+EDFV +++L+ AVEIL +EM Sbjct: 208 FGPLTKLQCCPTSDGAAAVILANEDFVYKHHLESQAVEILAMEM 251 >ref|XP_011442760.1| PREDICTED: non-specific lipid-transfer protein-like [Crassostrea gigas] Length = 402 Score = 159 bits (403), Expect = 6e-37 Identities = 73/103 (70%), Positives = 87/103 (84%) Frame = -2 Query: 311 PIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNAPKVS 132 P+ AQ+F AG EHM+KYGT E AKIA+KNHKHS NNPYSQFQ+EYSLEQI+N+PK+ Sbjct: 18 PVTAQMFGNAGREHMEKYGTKPEHFAKIAWKNHKHSTNNPYSQFQDEYSLEQIMNSPKIH 77 Query: 131 GPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 PLTKLQCCPTSDG+AAAIL SE+FV ++NLQ AVEI+ +EM Sbjct: 78 DPLTKLQCCPTSDGSAAAILCSEEFVKKHNLQNQAVEIVSMEM 120 >gb|EKC31331.1| Non-specific lipid-transfer protein [Crassostrea gigas] Length = 398 Score = 159 bits (403), Expect = 6e-37 Identities = 73/103 (70%), Positives = 87/103 (84%) Frame = -2 Query: 311 PIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNAPKVS 132 P+ AQ+F AG EHM+KYGT E AKIA+KNHKHS NNPYSQFQ+EYSLEQI+N+PK+ Sbjct: 14 PVTAQMFGNAGREHMEKYGTKPEHFAKIAWKNHKHSTNNPYSQFQDEYSLEQIMNSPKIH 73 Query: 131 GPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 PLTKLQCCPTSDG+AAAIL SE+FV ++NLQ AVEI+ +EM Sbjct: 74 DPLTKLQCCPTSDGSAAAILCSEEFVKKHNLQNQAVEIVSMEM 116 >ref|XP_014231366.1| PREDICTED: non-specific lipid-transfer protein isoform X2 [Trichogramma pretiosum] gi|936706808|ref|XP_014231367.1| PREDICTED: non-specific lipid-transfer protein isoform X2 [Trichogramma pretiosum] Length = 545 Score = 158 bits (400), Expect = 1e-36 Identities = 72/104 (69%), Positives = 89/104 (85%) Frame = -2 Query: 314 SPIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNAPKV 135 SPI AQ+F AG EHMKKYGT E AKIAYKNH HS+NNPYSQFQ++Y+LEQI+N+P+V Sbjct: 147 SPITAQMFGNAGIEHMKKYGTKPEHFAKIAYKNHLHSVNNPYSQFQDKYTLEQIMNSPRV 206 Query: 134 SGPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 GPLTKLQCCPTSDG+AA +LA+E+FV ++ L+ AVEI+G+EM Sbjct: 207 FGPLTKLQCCPTSDGSAAVVLANEEFVRKHKLEDQAVEIVGMEM 250 >ref|XP_014231365.1| PREDICTED: non-specific lipid-transfer protein isoform X1 [Trichogramma pretiosum] Length = 550 Score = 158 bits (400), Expect = 1e-36 Identities = 72/104 (69%), Positives = 89/104 (85%) Frame = -2 Query: 314 SPIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNAPKV 135 SPI AQ+F AG EHMKKYGT E AKIAYKNH HS+NNPYSQFQ++Y+LEQI+N+P+V Sbjct: 152 SPITAQMFGNAGIEHMKKYGTKPEHFAKIAYKNHLHSVNNPYSQFQDKYTLEQIMNSPRV 211 Query: 134 SGPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 GPLTKLQCCPTSDG+AA +LA+E+FV ++ L+ AVEI+G+EM Sbjct: 212 FGPLTKLQCCPTSDGSAAVVLANEEFVRKHKLEDQAVEIVGMEM 255 >ref|XP_012264313.1| PREDICTED: non-specific lipid-transfer protein [Athalia rosae] Length = 557 Score = 158 bits (400), Expect = 1e-36 Identities = 75/104 (72%), Positives = 86/104 (82%) Frame = -2 Query: 314 SPIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNAPKV 135 SP+ AQ+F AG EHMKKYGT E AKIAYKNH HS NNPYSQFQE+Y+LEQI+ +P V Sbjct: 164 SPVTAQMFGNAGIEHMKKYGTKPEHFAKIAYKNHLHSTNNPYSQFQEKYTLEQIMKSPTV 223 Query: 134 SGPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 GPLTKLQCCPTSDG+AA ILA+EDFV +NLQ AVEI+G+EM Sbjct: 224 FGPLTKLQCCPTSDGSAAVILANEDFVRTHNLQAQAVEIVGMEM 267 >ref|XP_011329453.1| PREDICTED: non-specific lipid-transfer protein [Cerapachys biroi] gi|607365891|gb|EZA60067.1| Non-specific lipid-transfer protein [Cerapachys biroi] Length = 541 Score = 158 bits (400), Expect = 1e-36 Identities = 74/103 (71%), Positives = 86/103 (83%) Frame = -2 Query: 311 PIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNAPKVS 132 PI AQ+F AG EHMKKYGT E AKIAYKNH HS NNPYSQFQE+YSLEQI+N+PK+ Sbjct: 149 PITAQMFGNAGLEHMKKYGTKPEHFAKIAYKNHLHSTNNPYSQFQEKYSLEQIMNSPKIF 208 Query: 131 GPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 GPLTKLQCCPTSDGAAA +LA+E+FV ++LQ AVE+L +EM Sbjct: 209 GPLTKLQCCPTSDGAAAVVLANEEFVRAHHLQPQAVEVLAMEM 251 >ref|XP_012340820.1| PREDICTED: non-specific lipid-transfer protein [Apis florea] Length = 539 Score = 158 bits (399), Expect = 2e-36 Identities = 75/104 (72%), Positives = 86/104 (82%) Frame = -2 Query: 314 SPIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNAPKV 135 SPI AQLF AG EHMKKYGT E AKIAYKNH HS+NNPYSQFQE+YSLEQI+N+P V Sbjct: 148 SPITAQLFGNAGLEHMKKYGTKPEHFAKIAYKNHLHSVNNPYSQFQEKYSLEQIMNSPTV 207 Query: 134 SGPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 GPLTKLQCCPTSDG+AA ILA+ DFV ++ L+ AVEI+ +EM Sbjct: 208 FGPLTKLQCCPTSDGSAAVILANADFVHKHKLESQAVEIIAMEM 251 >ref|XP_013775097.1| PREDICTED: non-specific lipid-transfer protein-like [Limulus polyphemus] gi|926619676|ref|XP_013775098.1| PREDICTED: non-specific lipid-transfer protein-like [Limulus polyphemus] Length = 548 Score = 156 bits (395), Expect = 5e-36 Identities = 73/104 (70%), Positives = 89/104 (85%) Frame = -2 Query: 314 SPIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNAPKV 135 +P+ AQ+F AG EH KKYGTT + AKIA+KNHKHS NNPYSQFQ+EY+LE+I+N+P + Sbjct: 160 APMTAQMFGGAGLEHSKKYGTTQQHFAKIAWKNHKHSTNNPYSQFQKEYTLEEIMNSPVI 219 Query: 134 SGPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 GPLTKLQCCPTS+GAAAAIL SEDFV ++ L+K AVEILG+EM Sbjct: 220 FGPLTKLQCCPTSNGAAAAILVSEDFVHQHRLEKQAVEILGMEM 263 >ref|XP_006569483.1| PREDICTED: non-specific lipid-transfer protein-like isoform X2 [Apis mellifera] Length = 539 Score = 156 bits (394), Expect = 6e-36 Identities = 74/104 (71%), Positives = 86/104 (82%) Frame = -2 Query: 314 SPIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNAPKV 135 SPI AQLF AG EHMKKYGT E AKIAYKNH HS+NNPYSQFQE+YSLEQI+++P V Sbjct: 148 SPITAQLFGNAGLEHMKKYGTKPEHFAKIAYKNHLHSVNNPYSQFQEKYSLEQIMSSPTV 207 Query: 134 SGPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 GPLTKLQCCPTSDG+AA ILA+ DFV ++ L+ AVEI+ +EM Sbjct: 208 FGPLTKLQCCPTSDGSAAVILANADFVHKHKLESQAVEIIAMEM 251 >ref|XP_006615389.1| PREDICTED: non-specific lipid-transfer protein-like [Apis dorsata] Length = 539 Score = 156 bits (394), Expect = 6e-36 Identities = 74/104 (71%), Positives = 86/104 (82%) Frame = -2 Query: 314 SPIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNAPKV 135 SPI AQLF AG EHMKKYGT E AKIAYKNH HS+NNPYSQFQE+YSLEQI+++P V Sbjct: 148 SPITAQLFGNAGLEHMKKYGTKPEHFAKIAYKNHLHSVNNPYSQFQEKYSLEQIMSSPTV 207 Query: 134 SGPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 GPLTKLQCCPTSDG+AA ILA+ DFV ++ L+ AVEI+ +EM Sbjct: 208 FGPLTKLQCCPTSDGSAAVILANADFVHKHKLESQAVEIIAMEM 251 >ref|XP_006569482.1| PREDICTED: non-specific lipid-transfer protein-like isoform X1 [Apis mellifera] Length = 548 Score = 156 bits (394), Expect = 6e-36 Identities = 74/104 (71%), Positives = 86/104 (82%) Frame = -2 Query: 314 SPIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNAPKV 135 SPI AQLF AG EHMKKYGT E AKIAYKNH HS+NNPYSQFQE+YSLEQI+++P V Sbjct: 157 SPITAQLFGNAGLEHMKKYGTKPEHFAKIAYKNHLHSVNNPYSQFQEKYSLEQIMSSPTV 216 Query: 134 SGPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 GPLTKLQCCPTSDG+AA ILA+ DFV ++ L+ AVEI+ +EM Sbjct: 217 FGPLTKLQCCPTSDGSAAVILANADFVHKHKLESQAVEIIAMEM 260 >ref|XP_003396579.1| PREDICTED: non-specific lipid-transfer protein [Bombus terrestris] Length = 539 Score = 155 bits (393), Expect = 8e-36 Identities = 73/104 (70%), Positives = 86/104 (82%) Frame = -2 Query: 314 SPIAAQLFSKAGEEHMKKYGTTAEQLAKIAYKNHKHSINNPYSQFQEEYSLEQILNAPKV 135 SPI AQ+F AG EHMKKYGTT E AKIA KNH HS+NNPYSQFQE Y+LEQI+ +PKV Sbjct: 148 SPITAQMFGNAGLEHMKKYGTTVEHFAKIACKNHLHSLNNPYSQFQERYTLEQIMKSPKV 207 Query: 134 SGPLTKLQCCPTSDGAAAAILASEDFVLRNNLQKNAVEILGIEM 3 GPLTKLQCCPTSDGAAA +LA+E+FV ++ L+ AVEI+ +EM Sbjct: 208 FGPLTKLQCCPTSDGAAAVVLANENFVRKHKLESQAVEIVAMEM 251