Table 1. 32 Vertebrate signal peptides >40 amino acids, which are predicted to be NtraC organized and are similar in their domain capacity to shrew-1.
| ID | NCBI Accession Number | Signal peptide sequence |
| 1 | P70505 | MSVAASASRSASTLCSPQIQQGALKEAKVPPHIWAARHWNLGLRLVPGHASVRAGILVLLIFLPSTLC |
| 2 | P17405 | MPRYGASLRQSCPRSGREQGQDGTAGAPGLLWMGLVLALALALALA |
| 3 | Q96PD2 | MASRAVVRARRCPQCPQVRAAAAAPAWAALPLSRSLPPCSNSSSFSMPLFLLLLLVLLLLLEDAGA |
| 4 | Q91ZV3 | MASRAPLRAARSPQGPGGPAAPAATGRAALPSAGCCPLPPGRNSSSRPRLLLLLLLLLQDAGG |
| 5 | Q91ZV2 | MASRAPLRAARSPQDPGGRAAPAATGRAPLPSAGWCPLPPGRNSSSRPRLLLLLLLLLPDAGA |
| 6 | Q28110 | MGIPSFLAFPAARRNRAHCTPWHPWGHMLLWTALLFLAPVSG |
| 7 | Q1LZH9 | MRLLSLAPDRPRRGGPRHLTSGSPALPPPPPLLLLLLLLGGCLGVSGA |
| 8 | P50426 | MRFLSLAPDRPRRGGPRHLPSGSPAPPPPPPLLLLLLLGGCLGVSGA |
| 9 | P52785 | MSAWLLPAGGLPGARFCVPARQSPSSFSRVLRWPRPGLPGLLLLLLLPSPSALS |
| 10 | P51840 | MSAWLLPAGGFPGAGFCIPAWQSRSSLSRVLRWPGPGLPGLLLLLLLPSPSAFS |
| 11 | P51841 | MFLGLGRFSRLVLWFAAFRKLLGHHGLASAKFLWCLCLLSVMSLPQQVWT |
| 12 | Q8K201 | MAASALGRMCGAAREKLSPGPGARGLGALARSLVLALLLVPVLC |
| 13 | Q5R5B8 | MAAAALKRMRGPAQAKLLPGSAIQALVGLARPLVLALLLVSAALSSVVS |
| 14 | Q9UBX7 | MQRLRWLRDWKSSGRGLTAAKEPGARSSPLQAMRILQLILLALATGLVGG |
| 15 | Q5XNR9 | MMNISLRLRRPPWMVDSNGRRMTSHFQWLLLTFILLYLMNQVTS |
| 16 | Q9H0V9 | MAATLGPLGSWQQWRRCLSARDGSRMLLLLLLLGSGQGPQQVGA |
| 17 | P59481 | MAAASRPSWWQRWRRRAWARDGAKLLLFLLLLGSGPGPRHVRA |
| 18 | Q6VE48 | MRASCTPLKAPLRRPERLASSGRFAWVLLLAPLLLLPTSSDA |
| 19 | Q8VE43 | MRGAVWAARRRAGQQWPRSPGPGPGPPPPPPLLLLLLLLLGGASA |
| 20 | Q5RJL6 | MRGVVWAARRRAGQQWPRSPGPGPGPPPPPPLLLLLLLLLGGASA |
| 21 | Q9R0S2 | MPRSRGGRAAPGQASRWSGWRAPGRLLPLLPALCCLAAAAG |
| 22 | Q99PW6 | MPRSRGGRAAPGQAARWSGWRAPGRLLPLLPALCCLAAAAG |
| 23 | P29122 | MPPRAPPAPGPRPPPRAAAATDTAAGAGGAGGAGGAGGPGFRPLAPRPWRWLLLLALPAACSA |
| 24 | Q9NQS3 | MARTLRPSPLCPGGGKAQLSSASLLGAGLLLQPPTPPPLLLLLFPLLLFSRLCGALA |
| 25 | Q96B86 | MQPPRERLVVTGRAGWMGMGRGAGRSALGFWPTLAFLLCSFPAATSP |
| 26 | Q9N0A6 | MGGPGPRRAGTSRERLVVTGRAGWMGMGRGAGRSALGFWPTLAFLLCSFPAAT |
| 27 | Q6PCX7 | MQPPRERLVVTGRAGWMGMGRGAGRSALGLWPTLAFLLCSFPAAISP |
| 28 | Q9QUR8 | MTPPPPGRAAPSAPRARVLSLPARFGLPLRLRLLLVFWVAAASA |
| 29 | Q9UPZ6 | MGLQARRWASGSRGAAGPRRGVLQLLPLPLPLPLLLLLLLRPGAGRA |
| 30 | Q9EPU5 | MGTRASSITALASCSRTAGQVGATMVAGSLLLLGFLSTITA |
| 31 | Q8IZC6 | MGAGSARGARGTAAAAAARGGGFLFSWILVSFACHLASTQG |
| 32 | Q91443 | MGRHSALGLSGNRQVSPCTGTRPFKVVGSRSPVQPLCILLALTVCIGTS |
Underlined residues are predicted turns belonging to the transition area.