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<td id="blast-threshold">The expectation value (E) threshold is a statistical measure of the number of expected matches in a random database. The lower the e-value, the more likely the match is to be significant. E-values between 0.1 and 10 are generally dubious, and over 10 are unlikely to have biological significance. In all cases, those matches need to be verified manually. You may need to increase the E threshold if you have a very short query sequence, to detect very weak similarities, or similarities in a short region, or if your sequence has a low complexity region and you use the "filter" option</td><p><a href='/help/sequence-searches' target='_top'>More...</a></p>E-Thresholdi

<td id="blast-matrix">The matrix assigns a probability score for each position in an alignment. The BLOSUM matrix assigns a probability score for each position in an alignment that is based on the frequency with which that substitution is known to occur among consensus blocks within related proteins. BLOSUM62 is among the best of the available matrices for detecting weak protein similarities. The PAM set of matrices is also available. If "Auto" is set, the matrix will be selected depending on the query sequence length.</td><p><a href='/help/sequence-searches' target='_top'>More...</a></p>Matrixi

<td id="blast-filter">Low-complexity regions (e.g. stretches of cysteine in <a href="http://www.uniprot.org/uniprot/Q03751">Q03751</a>, or hydrophobic regions in membrane proteins) tend to produce spurious, insignificant matches with sequences in the database which have the same kind of low-complexity regions, but are unrelated biologically. If "Filter low complexity regions" is selected, the query sequence will be run through the program SEG, and all amino acids in low-complexity regions will be replaced by X's. </td><p><a href='/help/sequence-searches' target='_top'>More...</a></p>Filteringi

<td id="blast-gapped">This will allow gaps to be introduced in the sequences when the comparison is done.</td><p><a href='/help/sequence-searches' target='_top'>More...</a></p>Gappedi

<td id="blast-numal">Limits the number of returned alignments.</td><p><a href='/help/sequence-searches' target='_top'>More...</a></p>Hitsi

Sequence feature

Entry & position(s)P26045[668 - 673]
Description
Feature keyHelix
Feature identifier
        10         20         30         40         50
MTSRLRALGG RINNIRTSEL PKEKTRSEVI CSIHFLDGVV QTFKVTKQDT
60 70 80 90 100
GQVLLDMVHN HLGVTEKEYF GLQHDDDSVD SPRWLEASKA IRKQLKGGFP
110 120 130 140 150
CTLHFRVRFF IPDPNTLQQE QTRHLYFLQL KMDICEGRLT CPLNSAVVLA
160 170 180 190 200
SYAVQSHFGD YNSSIHHPGY LSDSHFIPDQ NEDFLTKVES LHEQHSGLKQ
210 220 230 240 250
SEAESCYINI ARTLDFYGVE LHSGRDLHNL DLMIGIASAG VAVYRKYICT
260 270 280 290 300
SFYPWVNILK ISFKRKKFFI HQRQKQAESR EHIVAFNMLN YRSCKNLWKS
310 320 330 340 350
CVEHHTFFQA KKLLPQEKNV LSQYWTMGSR NTKKSVNNQY CKKVIGGMVW
360 370 380 390 400
NPAMRRSLSV EHLETKSLPS RSPPITPNWR SPRLRHEIRK PRHSSADNLA
410 420 430 440 450
NEMTYITETE DVFYTYKGSL APQDSDSEVS QNRSPHQESL SENNPAQSYL
460 470 480 490 500
TQKSSSSVSP SSNAPGSCSP DGVDQQLLDD FHRVTKGGST EDASQYYCDK
510 520 530 540 550
NDNGDSYLVL IRITPDEDGK FGFNLKGGVD QKMPLVVSRI NPESPADTCI
560 570 580 590 600
PKLNEGDQIV LINGRDISEH THDQVVMFIK ASRESHSREL ALVIRRRAVR
610 620 630 640 650
SFADFKSEDE LNQLFPEAIF PMCPEGGDTL EGSMAQLKKG LESGTVLIQF
660 670 680 690 700
EQLYRKKPGL AITFAKLPQN LDKNRYKDVL PYDTTRVLLQ GNEDYINASY
710 720 730 740 750
VNMEIPAANL VNKYIATQGP LPHTCAQFWQ VVWDQKLSLI VMLTTLTERG
760 770 780 790 800
RTKCHQYWPD PPDVMNHGGF HIQCQSEDCT IAYVSREMLV TNTQTGEEHT
810 820 830 840 850
VTHLQYVAWP DHGVPDDSSD FLEFVNYVRS LRVDSEPVLV HCSAGIGRTG
860 870 880 890 900
VLVTMETAMC LTERNLPIYP LDIVRKMRDQ RAMMVQTSSQ YKFVCEAILR
910
VYEEGLVQML DPS
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