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BLAST

About BLAST

<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)P02454[935 - 935]
Description
Feature keyModified residue
Feature identifier
        10         20         30         40         50
MFSFVDLRLL LLLGATALLT HGQEDIPEVS CIHNGLRVPN GETWKPDVCL 
        60         70         80         90        100
ICICHNGTAV CDGVLCKEDL DCPNPQKREG ECCPFCPEEY VSPDAEVIGV 
       110        120        130        140        150
EGPKGDPGPQ GPRGPVGPPG QDGIPGQPGL PGPPGPPGPP GPPGLGGNFA 
       160        170        180        190        200
SQMSYGYDEK SAGVSVPGPM GPSGPRGLPG PPGAPGPQGF QGPPGEPGEP 
       210        220        230        240        250
GASGPMGPRG PPGPPGKNGD DGEAGKPGRP GERGPPGPQG ARGLPGTAGL 
       260        270        280        290        300
PGMKGHRGFS GLDGAKGDTG PAGPKGEPGS PGENGAPGQM GPRGLPGERG 
       310        320        330        340        350
RPGPPGSAGA RGNDGAVGAA GPPGPTGPTG PPGFPGAAGA KGEAGPQGAR 
       360        370        380        390        400
GSEGPQGVRG EPGPPGPAGA AGPAGNPGAD GQPGAKGANG APGIAGAPGF 
       410        420        430        440        450
PGARGPSGPQ GPSGAPGPKG NSGEPGAPGN KGDTGAKGEP GPAGVQGPPG 
       460        470        480        490        500
PAGEEGKRGA RGEPGPSGLP GPPGERGGPG SRGFPGADGV AGPKGPAGER 
       510        520        530        540        550
GSPGPAGPKG SPGEAGRPGE AGLPGAKGLT GSPGSPGPDG KTGPPGPAGQ 
       560        570        580        590        600
DGRPGPAGPP GARGQAGVMG FPGPKGTAGE PGKAGERGVP GPPGAVGPAG 
       610        620        630        640        650
KDGEAGAQGA PGPAGPAGER GEQGPAGSPG FQGLPGPAGP PGEAGKPGEQ 
       660        670        680        690        700
GVPGDLGAPG PSGARGERGF PGERGVQGPP GPAGPRGNNG APGNDGAKGD 
       710        720        730        740        750
TGAPGAPGSQ GAPGLQGMPG ERGAAGLPGP KGDRGDAGPK GADGSPGKDG 
       760        770        780        790        800
VRGLTGPIGP PGPAGAPGDK GETGPSGPAG PTGARGAPGD RGEPGPPGPA 
       810        820        830        840        850
GFAGPPGADG QPGAKGEPGD TGVKGDAGPP GPAGPAGPPG PIGNVGAPGP 
       860        870        880        890        900
KGSRGAAGPP GATGFPGAAG RVGPPGPSGN AGPPGPPGPV GKEGGKGPRG 
       910        920        930        940        950
ETGPAGRPGE VGPPGPPGPA GEKGSPGADG PAGSPGTPGP QGIAGQRGVV 
       960        970        980        990       1000
GLPGQRGERG FPGLPGPSGE PGKQGPSGAS GERGPPGPMG PPGLAGPPGE 
      1010       1020       1030       1040       1050
SGREGSPGAE GSPGRDGAPG AKGDRGETGP AGPPGAPGAP GAPGPVGPAG 
      1060       1070       1080       1090       1100
KNGDRGETGP AGPAGPIGPA GARGPAGPQG PRGDKGETGE QGDRGIKGHR 
      1110       1120       1130       1140       1150
GFSGLQGPPG SPGSPGEQGP SGASGPAGPR GPPGSAGSPG KDGLNGLPGP 
      1160       1170       1180       1190       1200
IGPPGPRGRT GDSGPAGPPG PPGPPGPPGP PSGGYDFSFL PQPPQEKSQD 
      1210       1220       1230       1240       1250
GGRYYRADDA NVVRDRDLEV DTTLKSLSQQ IENIRSPEGS RKNPARTCRD 
      1260       1270       1280       1290       1300
LKMCHSDWKS GEYWIDPNQG CNLDAIKVYC NMETGQTCVF PTQPSVPQKN 
      1310       1320       1330       1340       1350
WYISPNPKEK KHVWFGESMT DGFQFEYGSE GSDPADVAIQ LTFLRLMSTE 
      1360       1370       1380       1390       1400
ASQNITYHCK NSVAYMDQQT GNLKKSLLLQ GSNEIELRGE GNSRFTYSTL 
      1410       1420       1430       1440       1450
VDGCTSHTGT WGKTVIEYKT TKTSRLPIID VAPLDIGAPD QEFGMDIGPA 

CFV
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