BLASTX nr result
ID: Akebia22_contig00034470
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= Akebia22_contig00034470 (494 letters) Database: ./nr 38,876,450 sequences; 13,856,398,315 total letters Searching..................................................done Score E Sequences producing significant alignments: (bits) Value ref|XP_007201958.1| hypothetical protein PRUPE_ppa004657mg [Prun... 161 1e-37 gb|EXC35431.1| putative mitochondrial chaperone bcs1 [Morus nota... 154 1e-35 ref|XP_002310261.2| AAA-type ATPase family protein [Populus tric... 150 2e-34 ref|XP_004287872.1| PREDICTED: probable mitochondrial chaperone ... 144 1e-32 ref|XP_007046849.1| Cytochrome BC1 synthesis, putative [Theobrom... 144 2e-32 ref|XP_006425625.1| hypothetical protein CICLE_v10025530mg [Citr... 141 8e-32 gb|EXC35432.1| putative mitochondrial chaperone bcs1 [Morus nota... 141 1e-31 ref|XP_004234548.1| PREDICTED: probable mitochondrial chaperone ... 141 1e-31 ref|XP_006343388.1| PREDICTED: probable mitochondrial chaperone ... 140 2e-31 ref|XP_006343389.1| PREDICTED: probable mitochondrial chaperone ... 139 3e-31 ref|XP_002521536.1| ATP binding protein, putative [Ricinus commu... 139 5e-31 ref|XP_004234549.1| PREDICTED: mitochondrial chaperone BCS1-like... 138 9e-31 ref|XP_006466842.1| PREDICTED: mitochondrial chaperone BCS1-like... 137 1e-30 ref|XP_006343390.1| PREDICTED: mitochondrial chaperone BCS1-like... 137 2e-30 ref|XP_004167494.1| PREDICTED: uncharacterized protein LOC101229... 136 3e-30 ref|XP_004167493.1| PREDICTED: uncharacterized protein LOC101229... 136 3e-30 ref|XP_004149990.1| PREDICTED: uncharacterized protein LOC101205... 136 3e-30 ref|XP_004149989.1| PREDICTED: uncharacterized protein LOC101205... 136 3e-30 ref|XP_002269184.1| PREDICTED: uncharacterized protein LOC100241... 135 6e-30 ref|XP_006343431.1| PREDICTED: uncharacterized protein LOC102583... 132 4e-29 >ref|XP_007201958.1| hypothetical protein PRUPE_ppa004657mg [Prunus persica] gi|462397489|gb|EMJ03157.1| hypothetical protein PRUPE_ppa004657mg [Prunus persica] Length = 497 Score = 161 bits (407), Expect = 1e-37 Identities = 73/108 (67%), Positives = 93/108 (86%) Frame = +1 Query: 160 MLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLTMVIEEFDGLINNEIYMAAEIYLGTK 339 ML+R+IAQDF+PHE+Q++FFS I S F+R SS LTMVIEEFDGL+NN+IY AAEIYLG+K Sbjct: 29 MLVRSIAQDFLPHEIQHYFFSGISSFFSRFSSQLTMVIEEFDGLVNNQIYEAAEIYLGSK 88 Query: 340 ISPSTQRLRVSKPEKENSFNINMERNEQILDVFDGVQFKWIFVCAQVE 483 +SPST R++VSKPEKEN+F I ME N++I+DVF+G++F WI V VE Sbjct: 89 VSPSTHRIKVSKPEKENNFTITMESNQEIVDVFNGIKFNWILVSRHVE 136 >gb|EXC35431.1| putative mitochondrial chaperone bcs1 [Morus notabilis] Length = 508 Score = 154 bits (389), Expect = 1e-35 Identities = 72/108 (66%), Positives = 90/108 (83%) Frame = +1 Query: 160 MLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLTMVIEEFDGLINNEIYMAAEIYLGTK 339 M+ R+I QD++P+E Q FS IR LF+R SS +TMVIEEFDGL+NN+IY AAE YLG K Sbjct: 29 MVARSIVQDYLPYEFQELLFSGIRKLFSRFSSQMTMVIEEFDGLVNNQIYEAAETYLGGK 88 Query: 340 ISPSTQRLRVSKPEKENSFNINMERNEQILDVFDGVQFKWIFVCAQVE 483 ISPSTQRL+VSKPEKE++F I +E+NE I+DVF+GV+F+WI VC QVE Sbjct: 89 ISPSTQRLKVSKPEKEHNFTITVEKNETIVDVFNGVKFRWILVCRQVE 136 >ref|XP_002310261.2| AAA-type ATPase family protein [Populus trichocarpa] gi|550334788|gb|EEE90711.2| AAA-type ATPase family protein [Populus trichocarpa] Length = 494 Score = 150 bits (379), Expect = 2e-34 Identities = 70/108 (64%), Positives = 85/108 (78%) Frame = +1 Query: 160 MLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLTMVIEEFDGLINNEIYMAAEIYLGTK 339 ML R+IAQDF+PHE Q +FF IR+ F R SS LTMV++EFDG NEIY AAE YLG+K Sbjct: 29 MLARSIAQDFMPHEFQAYFFYKIRNFFGRFSSQLTMVVDEFDGYTYNEIYGAAETYLGSK 88 Query: 340 ISPSTQRLRVSKPEKENSFNINMERNEQILDVFDGVQFKWIFVCAQVE 483 ISPSTQRL+VSKPEKEN F + M+RNE+I+D+F V+FKW VC V+ Sbjct: 89 ISPSTQRLKVSKPEKENEFTVKMDRNEEIVDIFQDVKFKWALVCTHVD 136 >ref|XP_004287872.1| PREDICTED: probable mitochondrial chaperone bcs1-like [Fragaria vesca subsp. vesca] Length = 505 Score = 144 bits (363), Expect = 1e-32 Identities = 66/108 (61%), Positives = 87/108 (80%) Frame = +1 Query: 160 MLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLTMVIEEFDGLINNEIYMAAEIYLGTK 339 ML R+IAQD +PHEV+++FF I S F+R S+ LTMVI+EFD L++N+IY +AE+YLG+K Sbjct: 31 MLARSIAQDLLPHEVRDYFFYGISSFFSRFSNQLTMVIDEFDALVSNQIYESAEVYLGSK 90 Query: 340 ISPSTQRLRVSKPEKENSFNINMERNEQILDVFDGVQFKWIFVCAQVE 483 +SP T RL+VSKPEKE SF I M NE+I+D F+GV+FKW+ V QVE Sbjct: 91 VSPMTHRLKVSKPEKEKSFTITMASNEEIVDFFNGVKFKWVLVSRQVE 138 >ref|XP_007046849.1| Cytochrome BC1 synthesis, putative [Theobroma cacao] gi|508699110|gb|EOX91006.1| Cytochrome BC1 synthesis, putative [Theobroma cacao] Length = 543 Score = 144 bits (362), Expect = 2e-32 Identities = 59/108 (54%), Positives = 91/108 (84%) Frame = +1 Query: 160 MLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLTMVIEEFDGLINNEIYMAAEIYLGTK 339 ML+R+IAQ+F+P++++++ F IR + NR SS +TMV++EF+GL+ N++Y AAE+YLG+K Sbjct: 28 MLVRSIAQEFLPYDIKDYVFFGIRKICNRFSSTVTMVVDEFNGLVYNQVYEAAEVYLGSK 87 Query: 340 ISPSTQRLRVSKPEKENSFNINMERNEQILDVFDGVQFKWIFVCAQVE 483 ISPS+QR +VSKPEKE F + MERNE+++D+++G++F W+ VC QVE Sbjct: 88 ISPSSQRFKVSKPEKEKEFIVTMERNEEVVDIYNGIRFNWVLVCKQVE 135 >ref|XP_006425625.1| hypothetical protein CICLE_v10025530mg [Citrus clementina] gi|557527615|gb|ESR38865.1| hypothetical protein CICLE_v10025530mg [Citrus clementina] Length = 473 Score = 141 bits (356), Expect = 8e-32 Identities = 63/111 (56%), Positives = 87/111 (78%) Frame = +1 Query: 160 MLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLTMVIEEFDGLINNEIYMAAEIYLGTK 339 ML RT+A+D +P+E+Q++F+ +R NR SS LT+VI+E DGL N+IY AA++YLG K Sbjct: 30 MLARTVARDLLPYEIQDYFYFRLRKFCNRFSSQLTIVIDEHDGLAKNQIYEAAKVYLGKK 89 Query: 340 ISPSTQRLRVSKPEKENSFNINMERNEQILDVFDGVQFKWIFVCAQVEKAS 492 SPS QR++VSKPEKEN NI+ME +EQ++DVF+G++ KW+ VC QVE S Sbjct: 90 TSPSVQRIKVSKPEKENHVNISMESDEQVVDVFNGIKLKWVLVCRQVESRS 140 >gb|EXC35432.1| putative mitochondrial chaperone bcs1 [Morus notabilis] Length = 516 Score = 141 bits (355), Expect = 1e-31 Identities = 65/108 (60%), Positives = 86/108 (79%) Frame = +1 Query: 160 MLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLTMVIEEFDGLINNEIYMAAEIYLGTK 339 M+ R+I QD++P+E Q+F S IR FN SS TMVI+EFDGL+NN+IY AAE YLG K Sbjct: 29 MVARSIIQDYLPYEFQHFLLSGIRKFFNGFSSQTTMVIDEFDGLVNNQIYEAAETYLGGK 88 Query: 340 ISPSTQRLRVSKPEKENSFNINMERNEQILDVFDGVQFKWIFVCAQVE 483 ISPS QRL+VSK EKEN+F + +E+ + I+DVF+GV+F+WI VC+QV+ Sbjct: 89 ISPSMQRLKVSKSEKENNFVVTVEKKQMIVDVFNGVKFRWILVCSQVQ 136 >ref|XP_004234548.1| PREDICTED: probable mitochondrial chaperone BCS1-A-like [Solanum lycopersicum] Length = 490 Score = 141 bits (355), Expect = 1e-31 Identities = 61/111 (54%), Positives = 85/111 (76%) Frame = +1 Query: 160 MLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLTMVIEEFDGLINNEIYMAAEIYLGTK 339 ML+R+I D+IP E+ + F +R +F + S+ LTMVI+EFDGL+NNEIY AAE YLG K Sbjct: 28 MLVRSIFHDYIPQEIHEYLFFGLRKMFTKFSNQLTMVIDEFDGLVNNEIYEAAETYLGNK 87 Query: 340 ISPSTQRLRVSKPEKENSFNINMERNEQILDVFDGVQFKWIFVCAQVEKAS 492 +SP+ RL++SKPEKE +FNI MERNE++ DV++G FKWI++C Q + + Sbjct: 88 LSPNIHRLKISKPEKEKNFNIAMERNEEVTDVYNGQTFKWIWLCRQTQSTN 138 >ref|XP_006343388.1| PREDICTED: probable mitochondrial chaperone BCS1-B-like [Solanum tuberosum] Length = 501 Score = 140 bits (352), Expect = 2e-31 Identities = 60/111 (54%), Positives = 87/111 (78%) Frame = +1 Query: 160 MLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLTMVIEEFDGLINNEIYMAAEIYLGTK 339 ML+R+I D+IP E+ + F +R++F + S+ LTMVI+EFDGL+NNEIY AA+ YLG+K Sbjct: 28 MLVRSIFHDYIPRELHEYLFFGLRNIFTKFSNQLTMVIDEFDGLVNNEIYEAAQTYLGSK 87 Query: 340 ISPSTQRLRVSKPEKENSFNINMERNEQILDVFDGVQFKWIFVCAQVEKAS 492 +SP+ RL++SKPEKE +FNI MERNE++ DV++G FKWI++C Q + + Sbjct: 88 LSPNIHRLKISKPEKEKNFNIAMERNEEVTDVYNGQTFKWIWLCRQTQSTN 138 >ref|XP_006343389.1| PREDICTED: probable mitochondrial chaperone BCS1-B-like [Solanum tuberosum] Length = 502 Score = 139 bits (351), Expect = 3e-31 Identities = 61/108 (56%), Positives = 85/108 (78%) Frame = +1 Query: 160 MLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLTMVIEEFDGLINNEIYMAAEIYLGTK 339 ML+R+I D+IP E+ + F +R++F S+ LTMVI+EFDGL+NNEIY AA+ YLG+K Sbjct: 28 MLVRSIFHDYIPRELHEYLFFRLRNMFTNFSNQLTMVIDEFDGLVNNEIYEAAQTYLGSK 87 Query: 340 ISPSTQRLRVSKPEKENSFNINMERNEQILDVFDGVQFKWIFVCAQVE 483 +SP+ RL++SKPEKE +FNI MERNE++ DV++G FKWI++C Q E Sbjct: 88 LSPNIHRLKISKPEKEKNFNIAMERNEEVTDVYNGQTFKWIWLCRQTE 135 >ref|XP_002521536.1| ATP binding protein, putative [Ricinus communis] gi|223539214|gb|EEF40807.1| ATP binding protein, putative [Ricinus communis] Length = 528 Score = 139 bits (349), Expect = 5e-31 Identities = 61/108 (56%), Positives = 85/108 (78%) Frame = +1 Query: 160 MLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLTMVIEEFDGLINNEIYMAAEIYLGTK 339 ML R++AQD +P+E ++F +IR + R SS +TMV++EFDG ++N+IY AAE YL + Sbjct: 28 MLARSVAQDILPYEFHDYFLFNIRKILGRFSSQITMVVDEFDGFVHNQIYEAAETYLASN 87 Query: 340 ISPSTQRLRVSKPEKENSFNINMERNEQILDVFDGVQFKWIFVCAQVE 483 ISPST+R +VSKPEKE + + ME NE+I+DV+ GV+FKWIFVC+QVE Sbjct: 88 ISPSTRRFKVSKPEKEKNLTVKMEGNEEIIDVYRGVKFKWIFVCSQVE 135 >ref|XP_004234549.1| PREDICTED: mitochondrial chaperone BCS1-like [Solanum lycopersicum] Length = 505 Score = 138 bits (347), Expect = 9e-31 Identities = 59/108 (54%), Positives = 84/108 (77%) Frame = +1 Query: 160 MLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLTMVIEEFDGLINNEIYMAAEIYLGTK 339 ML+RTI D+IP E+ + F ++++F + S+ LTMVI+EFDGL+NNEIY A IYLG K Sbjct: 28 MLVRTIVNDYIPRELHEYLFFGLKNMFTKFSNQLTMVIDEFDGLVNNEIYDAVAIYLGNK 87 Query: 340 ISPSTQRLRVSKPEKENSFNINMERNEQILDVFDGVQFKWIFVCAQVE 483 +SP+ +RL++SKP KE +FNI MERNE++ DV++G FKWI++C Q + Sbjct: 88 LSPNIKRLKISKPAKEKNFNITMERNEEVTDVYNGQTFKWIWLCRQTQ 135 >ref|XP_006466842.1| PREDICTED: mitochondrial chaperone BCS1-like [Citrus sinensis] Length = 473 Score = 137 bits (346), Expect = 1e-30 Identities = 62/111 (55%), Positives = 86/111 (77%) Frame = +1 Query: 160 MLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLTMVIEEFDGLINNEIYMAAEIYLGTK 339 ML RT+A+D +P+E+Q++F+ +R NR SS LT+VI+E DGL N+IY AA++YLG K Sbjct: 30 MLARTVARDLLPYEIQDYFYFRLRKFCNRFSSQLTIVIDEHDGLAKNQIYEAAKVYLGKK 89 Query: 340 ISPSTQRLRVSKPEKENSFNINMERNEQILDVFDGVQFKWIFVCAQVEKAS 492 SPS QR++VSK EKEN NI+ME +EQ++DVF+G++ KW+ VC QVE S Sbjct: 90 TSPSVQRIKVSKLEKENHVNISMESDEQVVDVFNGIKLKWVLVCRQVESRS 140 >ref|XP_006343390.1| PREDICTED: mitochondrial chaperone BCS1-like [Solanum tuberosum] Length = 496 Score = 137 bits (344), Expect = 2e-30 Identities = 59/106 (55%), Positives = 84/106 (79%) Frame = +1 Query: 160 MLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLTMVIEEFDGLINNEIYMAAEIYLGTK 339 ML+RTI D+IP E+ + F ++++F + S+ LTMVI+EFDGL+NNEIY A IYLG K Sbjct: 28 MLVRTIVHDYIPPELHEYLFFGLKNMFIKFSNQLTMVIDEFDGLVNNEIYEAVAIYLGNK 87 Query: 340 ISPSTQRLRVSKPEKENSFNINMERNEQILDVFDGVQFKWIFVCAQ 477 +SP+ +RL++SKP KEN+FNI MERNE++ DV++G FKWI++C + Sbjct: 88 LSPNIRRLKISKPAKENNFNITMERNEEVTDVYNGQTFKWIWLCCR 133 >ref|XP_004167494.1| PREDICTED: uncharacterized protein LOC101229933 isoform 2 [Cucumis sativus] Length = 480 Score = 136 bits (342), Expect = 3e-30 Identities = 61/109 (55%), Positives = 86/109 (78%) Frame = +1 Query: 160 MLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLTMVIEEFDGLINNEIYMAAEIYLGTK 339 +L+R+IA D +P E + +F+ IR++F+R SS LTMV++E DGL N+IY AAEIYL TK Sbjct: 30 LLLRSIANDLLPSEFREYFYDGIRTIFSRFSSQLTMVVDEMDGLGPNQIYEAAEIYLATK 89 Query: 340 ISPSTQRLRVSKPEKENSFNINMERNEQILDVFDGVQFKWIFVCAQVEK 486 ISPST RL+VSKPEKE++ +ERNE+++D F+GV+F W+ VC QV++ Sbjct: 90 ISPSTARLKVSKPEKEDNITTAVERNEEVVDTFNGVKFHWVLVCEQVQR 138 >ref|XP_004167493.1| PREDICTED: uncharacterized protein LOC101229933 isoform 1 [Cucumis sativus] Length = 501 Score = 136 bits (342), Expect = 3e-30 Identities = 61/109 (55%), Positives = 86/109 (78%) Frame = +1 Query: 160 MLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLTMVIEEFDGLINNEIYMAAEIYLGTK 339 +L+R+IA D +P E + +F+ IR++F+R SS LTMV++E DGL N+IY AAEIYL TK Sbjct: 30 LLLRSIANDLLPSEFREYFYDGIRTIFSRFSSQLTMVVDEMDGLGPNQIYEAAEIYLATK 89 Query: 340 ISPSTQRLRVSKPEKENSFNINMERNEQILDVFDGVQFKWIFVCAQVEK 486 ISPST RL+VSKPEKE++ +ERNE+++D F+GV+F W+ VC QV++ Sbjct: 90 ISPSTARLKVSKPEKEDNITTAVERNEEVVDTFNGVKFHWVLVCEQVQR 138 >ref|XP_004149990.1| PREDICTED: uncharacterized protein LOC101205613 isoform 2 [Cucumis sativus] Length = 480 Score = 136 bits (342), Expect = 3e-30 Identities = 61/109 (55%), Positives = 86/109 (78%) Frame = +1 Query: 160 MLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLTMVIEEFDGLINNEIYMAAEIYLGTK 339 +L+R+IA D +P E + +F+ IR++F+R SS LTMV++E DGL N+IY AAEIYL TK Sbjct: 30 LLLRSIANDLLPSEFREYFYDGIRTIFSRFSSQLTMVVDEMDGLGPNQIYEAAEIYLATK 89 Query: 340 ISPSTQRLRVSKPEKENSFNINMERNEQILDVFDGVQFKWIFVCAQVEK 486 ISPST RL+VSKPEKE++ +ERNE+++D F+GV+F W+ VC QV++ Sbjct: 90 ISPSTARLKVSKPEKEDNITTAVERNEEVVDTFNGVKFHWVLVCEQVQR 138 >ref|XP_004149989.1| PREDICTED: uncharacterized protein LOC101205613 isoform 1 [Cucumis sativus] Length = 501 Score = 136 bits (342), Expect = 3e-30 Identities = 61/109 (55%), Positives = 86/109 (78%) Frame = +1 Query: 160 MLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLTMVIEEFDGLINNEIYMAAEIYLGTK 339 +L+R+IA D +P E + +F+ IR++F+R SS LTMV++E DGL N+IY AAEIYL TK Sbjct: 30 LLLRSIANDLLPSEFREYFYDGIRTIFSRFSSQLTMVVDEMDGLGPNQIYEAAEIYLATK 89 Query: 340 ISPSTQRLRVSKPEKENSFNINMERNEQILDVFDGVQFKWIFVCAQVEK 486 ISPST RL+VSKPEKE++ +ERNE+++D F+GV+F W+ VC QV++ Sbjct: 90 ISPSTARLKVSKPEKEDNITTAVERNEEVVDTFNGVKFHWVLVCEQVQR 138 >ref|XP_002269184.1| PREDICTED: uncharacterized protein LOC100241950 [Vitis vinifera] gi|147815615|emb|CAN63838.1| hypothetical protein VITISV_041357 [Vitis vinifera] Length = 522 Score = 135 bits (340), Expect = 6e-30 Identities = 65/136 (47%), Positives = 91/136 (66%) Frame = +1 Query: 85 NMFSHTQMPXXXXXXXXXXXXXXXXMLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLT 264 N FS T++ M+ R++ QDF+P+E Q F S IR LFNR S +T Sbjct: 6 NFFSETKLASAKTVFSTAASLLATAMVFRSVLQDFLPYEAQQIFCSGIRRLFNRFSPQMT 65 Query: 265 MVIEEFDGLINNEIYMAAEIYLGTKISPSTQRLRVSKPEKENSFNINMERNEQILDVFDG 444 MVI+EFDG+ N+I+ AAE YLG+K+ S+QRLRVS+P KE FNIN+ER+++I+DVF G Sbjct: 66 MVIDEFDGIAYNQIFEAAETYLGSKVC-SSQRLRVSRPAKERKFNINVERDQEIVDVFRG 124 Query: 445 VQFKWIFVCAQVEKAS 492 V+F+W+ +C + E S Sbjct: 125 VKFRWLLICIKTESRS 140 >ref|XP_006343431.1| PREDICTED: uncharacterized protein LOC102583264 [Solanum tuberosum] Length = 602 Score = 132 bits (333), Expect = 4e-29 Identities = 58/108 (53%), Positives = 83/108 (76%) Frame = +1 Query: 160 MLIRTIAQDFIPHEVQNFFFSSIRSLFNRLSSDLTMVIEEFDGLINNEIYMAAEIYLGTK 339 ML++TI Q++IP E+ + F ++++F + S LTMVI+EFDGL+NN+IY AA IYL K Sbjct: 144 MLVQTIIQNYIPRELHAYLFFGLKNMFTKFSKQLTMVIDEFDGLVNNKIYEAATIYLANK 203 Query: 340 ISPSTQRLRVSKPEKENSFNINMERNEQILDVFDGVQFKWIFVCAQVE 483 +SP RL++SK EKE +FNI MERNE+++DV++G FKWI++C Q E Sbjct: 204 LSPHIHRLKISKTEKEKNFNIAMERNEEVIDVYNGQTFKWIWLCRQTE 251