Department of Biochemistry and Molecular Biology

SDAP Home Page
SDAP Overview
SDAP All
SDAP Food

Use SDAP All
Search SDAP All
List SDAP All
SDAP Food

SDAP Tools
FAO/WHO Allergenicity Test
FASTA Search in SDAP
Peptide Match
Peptide Similarity
Peptide-Protein PD Index
Aller_ML, Allergen Markup Language
List SDAP

About SDAP
General Information
Manual
FAQ
Publications
Who Are We
Advisory Board

Allergy Links

Our Software Tools
MPACK
FANTOM
GETAREA
NOAH/DIAMOD
MASIA
PCPMer
InterProSurf
EpiSearch

Protein Databases
PDB
MMDB - Entrez
SWISS-PROT
NCBI - Entrez
PIR

Protein Classification
CATH
CE
FSSP
iProClass
ProtoMap
SCOP
TOPS
VAST

Bioinformatics Servers
@TOME
BLAST @ NCBI
BLAST @ PIR
FASTA @ PIR
Peptide Match @ PIR
ClustalW @ BCM
ClustalW @ EMBL - EBI
ClustalW @ PIR

Bioinformatics Tools
Cn3D
MolMol

Bioinformatics Links
Bioinformatics Links Directory

SDAP - All Allergens

Go to: SDAP All allergens		Go to: SDAP Food allergens
Send a comment to Ovidiu Ivanciuc		Submit new allergen information to SDAP
Last Updated: Nov 1, 2021
Alphabetical listing of allergens: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Access to SDAP is available free of charge for Academic and non-profit use. Licenses for commercial use can be obtained by contacting W. Braun (webraun@utmb.edu). Secure access to SDAP is available from https://fermi.utmb.edu/SDAP

Allergen Chi t 9

Sequence 121259

Full FASTA alignment

Sequence name:
Query sequence:
DPEWHTLDAHEVEQVQATWKAVSHDEVEILYTVFKAHPDIMAKFPKFAGK
DLEAIKDTADFAVHASRIIGFFGEYVTLLGSSGNQAAIRTLLHDLGVFHK
TRGITKAQFGEFRETMTAYLKGHNKWNADISHSWDDAFDKAFSVIFEVLE
S

No Allergen Sequence Link in
SwissProt/NCBI/PIR View Sequence Sequence
Length bit score E score
1 Chi t 9 P02228 Go! 151 228.6 5.7e-62
2 Chi t 8 P02227 Go! 151 119.7 3.5e-29
3 Chi t 3 P02222 Go! 160 119.3 4.8e-29
4 Chi t 7 P84299 Go! 161 116.0 4.7e-28
5 Chi t 7 P84298 Go! 161 116.0 4.7e-28
6 Chi t 6.0201 P02223 Go! 161 112.1 7.1e-27
7 Chi t 5 P02224 Go! 162 111.5 1.1e-26
8 Chi t 6.01 P02226 Go! 145 107.5 1.6e-25
9 Chi t 2.0101 P02221 Go! 158 97.1 2.3e-22
10 Chi t 2.0102 AAA80190 Go! 158 96.9 2.7e-22
11 Chi t 1.01 P02229 Go! 151 85.5 6.8e-19
12 Chi t 1.0201 P02230 Go! 151 79.4 4.7e-17
13 Chi t 4 P02231 Go! 151 68.1 1.2e-13

Alignment made with FASTA 3.45
As explained in the FASTA manual, the bit score is equivalent to the bit score reported by BLAST. A 1 bit increase in score corresponds to a 2-fold reduction in expectation, and a 10-bit increase implies 1000-fold lower expectation. Sequences with E values < 0.01 are almost always homologous.

Alignment 1
Sequence 1:
Sequence 2: Allergen Chi t 9, Sequence: P02228
Sequence identity: 100.00 (151/151)
Sequence 1 DPEWHTLDAHEVEQVQATWKAVSHDEVEILYTVFKAHPDIMAKFPKFAGK
           DPEWHTLDAHEVEQVQATWKAVSHDEVEILYTVFKAHPDIMAKFPKFAGK
Sequence 2 DPEWHTLDAHEVEQVQATWKAVSHDEVEILYTVFKAHPDIMAKFPKFAGK

Sequence 1 DLEAIKDTADFAVHASRIIGFFGEYVTLLGSSGNQAAIRTLLHDLGVFHK
           DLEAIKDTADFAVHASRIIGFFGEYVTLLGSSGNQAAIRTLLHDLGVFHK
Sequence 2 DLEAIKDTADFAVHASRIIGFFGEYVTLLGSSGNQAAIRTLLHDLGVFHK

Sequence 1 TRGITKAQFGEFRETMTAYLKGHNKWNADISHSWDDAFDKAFSVIFEVLE
           TRGITKAQFGEFRETMTAYLKGHNKWNADISHSWDDAFDKAFSVIFEVLE
Sequence 2 TRGITKAQFGEFRETMTAYLKGHNKWNADISHSWDDAFDKAFSVIFEVLE

Sequence 1 S
           S
Sequence 2 S

Alignment 2
Sequence 1:
Sequence 2: Allergen Chi t 8, Sequence: P02227
Sequence identity: 47.68 (72/151)
Sequence 1 DPEWHTLDAHEVEQVQATWKAVSHDEVEILYTVFKAHPDIMAKFPKFAGK
           --------A---------W--V-H-EV-ILY-VFKA-PDI-AKFP-FAGK
Sequence 2 --AVTPMSADQLALFKSSWNTVKHNEVDILYAVFKANPDIQAKFPQFAGK

Sequence 1 DLEAIKDTADFAVHASRIIGFFGEYVTLLGSSGNQAAIRTLLHDLGVFHK
           DL--IKD-ADFAVH--RI-GFF-E---L-G---N--A--TL---L---HK
Sequence 2 DLDSIKDSADFAVHSGRIVGFFSEVIGLIGNPENRPALKTLIDGLASSHK

Sequence 1 TRGITKAQFGEFRETMTAYLKGHNKWNADISHSWDDAFDKAFSVIFEVLE
           -RGI-KAQF-EFR-----YL--H--WN------WD-A----F--I---LE
Sequence 2 ARGIEKAQFEEFRASLVDYLSHHLDWNDTMKSTWDLALNNMFFYILHALE

Sequence 1 S--
           ---
Sequence 2 VAQ

Alignment 3
Sequence 1:
Sequence 2: Allergen Chi t 3, Sequence: P02222
Sequence identity: 47.02 (71/151)
Sequence 1 -----------DPEWHTLDAHEVEQVQATWKAVSHDEVEILYTVFKAHPD
           -----------------L-A-E---V---W--V-H-EV-ILY--FKA-PD
Sequence 2 MKFLVLALCIAAAVAAPLSADEASLVRGSWAQVKHSEVDILYYIFKANPD

Sequence 1 IMAKFPKFAGKDLEAIKDTADFAVHASRIIGFFGEYVTLLGSSGNQAAIR
           IMAKFP-FAGKDLE--K-T--FA-HA-RI-GF--E-V-L-G-S-N--A--
Sequence 2 IMAKFPQFAGKDLETLKGTGQFATHAGRIVGFVSEIVALMGNSANMPAME

Sequence 1 TLLHDLGVFHKTRGITKAQFGEFRETMTAYLKGHNKWNADISHSWDDAFD
           TL--D----HK-RGI-KAQF-EFR-----YL-----WN------W----D
Sequence 2 TLIKDMAANHKARGIPKAQFNEFRASLVSYLQSKVSWNDSLGAAWTQGLD

Sequence 1 KAFSVIFEVLES
           --F---F--L--
Sequence 2 NVFNMMFSYL--

Alignment 4
Sequence 1:
Sequence 2: Allergen Chi t 7, Sequence: P84299
Sequence identity: 46.36 (70/151)
Sequence 1 ------------DPEWHTLDAHEVEQVQATWKAVSHDEVEILYTVFKAHP
           ------------------L-A-E---VQ--WKAVSH-EVEIL--VF-A-P
Sequence 2 MKFFAVLALCIVGAIASPLTADEASLVQSSWKAVSHNEVEILAAVFAAYP

Sequence 1 DIMAKFPKFAGKDLEAIKDTADFAVHASRIIGFFGEYVTLLGSSGNQAAI
           DI--KF--FAGKDL--IKDT--FA-HA-RI--F--E---L-G---N-AA-
Sequence 2 DIQNKFSQFAGKDLASIKDTGAFATHATRIVSFLSEVIALSGNTSNAAAV

Sequence 1 RTLLHDLGVFHKTRGITKAQFGEFRETMTAYLKGHNKWNADISHSWDDAF
           --L---LG--HK-RG---AQFGEFR----AYL-----W-------W--A-
Sequence 2 NSLVSKLGDDHKARGVSAAQFGEFRTALVAYLQANVSWGDNVAAAWNKAL

Sequence 1 DKAFSVIFEVLES
           D--F------L--
Sequence 2 DNTFAIVVPRL--

Alignment 5
Sequence 1:
Sequence 2: Allergen Chi t 7, Sequence: P84298
Sequence identity: 46.36 (70/151)
Sequence 1 ------------DPEWHTLDAHEVEQVQATWKAVSHDEVEILYTVFKAHP
           ------------------L-A-E---VQ--WKAVSH-EVEIL--VF-A-P
Sequence 2 MKFFAVLALCIVGAIASPLTADEASLVQSSWKAVSHNEVEILAAVFAAYP

Sequence 1 DIMAKFPKFAGKDLEAIKDTADFAVHASRIIGFFGEYVTLLGSSGNQAAI
           DI--KF--FAGKDL--IKDT--FA-HA-RI--F--E---L-G---N-AA-
Sequence 2 DIQNKFSQFAGKDLASIKDTGAFATHATRIVSFLSEVIALSGNTSNAAAV

Sequence 1 RTLLHDLGVFHKTRGITKAQFGEFRETMTAYLKGHNKWNADISHSWDDAF
           --L---LG--HK-RG---AQFGEFR----AYL-----W-------W--A-
Sequence 2 NSLVSKLGDDHKARGVSAAQFGEFRTALVAYLQANVSWGDNVAAAWNKAL

Sequence 1 DKAFSVIFEVLES
           D--F------L--
Sequence 2 DNTFAIVVPRL--

Alignment 6
Sequence 1:
Sequence 2: Allergen Chi t 6.0201, Sequence: P02223
Sequence identity: 43.71 (66/151)
Sequence 1 ------------DPEWHTLDAHEVEQVQATWKAVSHDEVEILYTVFKAHP
           ----------------------------A-W--V-H-EV-IL--VF--HP
Sequence 2 MKFFIVLALCIVGAIADPVSSDQANAIRASWAGVKHNEVDILAAVFSDHP

Sequence 1 DIMAKFPKFAGKDLEAIKDTADFAVHASRIIGFFGEYVTLLGSSGNQAAI
           DI-A-FP-FAGKDL--IKDT--FA-HA-RI-GF--E-V-L-G---N--A-
Sequence 2 DIQARFPQFAGKDLASIKDTGAFATHAGRIVGFISEIVALVGNESNAPAM

Sequence 1 RTLLHDLGVFHKTRGITKAQFGEFRETMTAYLKGHNKWNADISHSWDDAF
           -TL---L---H--RGITK-QF-EFR-----YL--H--WN------W----
Sequence 2 ATLINELSTSHHNRGITKGQFNEFRSSLVSYLSSHASWNDATADAWTHGL

Sequence 1 DKAFSVIFEVLES
           D--F--IF--L--
Sequence 2 DNIFGMIFAHL--

Alignment 7
Sequence 1:
Sequence 2: Allergen Chi t 5, Sequence: P02224
Sequence identity: 44.37 (67/151)
Sequence 1 -----------DPEWHTLDAHEVEQVQATWKAVSHDEVEILYTVFKAHPD
           -----------------L-------V--TW--V---EV-ILY-VFKA-PD
Sequence 2 MKFLVLALCIAAASAAVLTTEQADLVKKTWSTVKFNEVDILYAVFKAYPD

Sequence 1 IMAKFPKFAGKDLEAIKDTADFAVHASRIIGFFGEYVTLLGSSGNQAAIR
           IMAKFP-FAGKDL--IKD-A-FA-HA-RI--F--E---L-GS--N--AI-
Sequence 2 IMAKFPQFAGKDLDSIKDSAAFATHATRIVSFLSEVISLAGSDANIPAIQ

Sequence 1 TLLHDLGVFHKTRGITKAQFGEFRETMTAYLKGHNKWNADISHSWDDAFD
           -L---L---HK-RG--K-QF-EFR-----YLK-H----------W--A-D
Sequence 2 NLAKELATSHKPRGVSKDQFTEFRTALFTYLKAHINFDGPTETAWTLALD

Sequence 1 KAFSVIFEVLES
           ------F----S
Sequence 2 TTYAMLFSAMDS

Alignment 8
Sequence 1:
Sequence 2: Allergen Chi t 6.01, Sequence: P02226
Sequence identity: 43.05 (65/151)
Sequence 1 DPEWHTLDAHEVEQVQATWKAVSHDEVEILYTVFKAHPDIMAKFPKFAGK
           ------L-A-----V--TW--V---EVEIL--VF-A-PDI-A-FP-FAGK
Sequence 2 ----APLSADQASLVKSTWAQVRNSEVEILAAVFTAYPDIQARFPQFAGK

Sequence 1 DLEAIKDTADFAVHASRIIGFFGEYVTLLGSSGNQAAIRTLLHDLGVFHK
           D---IKDT--FA-HA-RI-GF--E---L-G---N--A--TL---L---HK
Sequence 2 DVASIKDTGAFATHAGRIVGFVSEIIALIGNESNAPAVQTLVGQLAASHK

Sequence 1 TRGITKAQFGEFRETMTAYLKGHNKWNADISHSWDDAFDKAFSVIFEVLE
           -RGI--AQF-EFR-----Y------WNA-----W----D--F---F--L-
Sequence 2 ARGISQAQFNEFRAGLVSYVSSNVAWNAAAESAWTAGLDNIFGLLFAAL-

Sequence 1 S
           -
Sequence 2 -

Alignment 9
Sequence 1:
Sequence 2: Allergen Chi t 2.0101, Sequence: P02221
Sequence identity: 38.41 (58/151)
Sequence 1 ----------DPEWHTLDAHEVEQVQATWKAVSHDEVEILYTVFKAHPDI
           --------------------------A-W--V----V-ILY-VFKA-PDI
Sequence 2 MKFLILALCVAAAMAGPSGDQIAAAKASWNTVKNNQVDILYAVFKANPDI

Sequence 1 MAKFPKFAGKDLEAIKDTADFAVHASRIIGFFGEYVTLLGSSGNQAAIRT
           ---F--FAGKDL--IK-T-DF--HA-R--G-F-E---LLG---N---I--
Sequence 2 QTAFSQFAGKDLDSIKGTPDFSKHAGRVVGLFSEVMDLLGNDANTPTILA

Sequence 1 LLHDLGVFHKTRGITKAQFGEFRETMTAYLKGHNKWNADISHSWDDAFDK
           ---D-G--HK-R----AQ---FR-----YLKG--KW------SW----D-
Sequence 2 KAKDFGKSHKSRA-SPAQLDNFRKSLVVYLKGATKWDSAVESSWAPVLDF

Sequence 1 AFSVIFEVLES
           -FS-----L--
Sequence 2 VFSTLKNEL--

Alignment 10
Sequence 1:
Sequence 2: Allergen Chi t 2.0102, Sequence: AAA80190
Sequence identity: 38.41 (58/151)
Sequence 1 ----------DPEWHTLDAHEVEQVQATWKAVSHDEVEILYTVFKAHPDI
           --------------------------A-W--V----V-ILY-VFKA-PDI
Sequence 2 MKFLILALCVAAAMAGPSGDQIAAAKASWNTVKNNQVDILYAVFKANPDI

Sequence 1 MAKFPKFAGKDLEAIKDTADFAVHASRIIGFFGEYVTLLGSSGNQAAIRT
           ---F--FAGKDL--IK-T-DF--HA-R--G-F-E---LLG---N---I--
Sequence 2 QTAFSQFAGKDLDSIKGTPDFSKHAGRVVGLFSEVMDLLGNDANTPTILA

Sequence 1 LLHDLGVFHKTRGITKAQFGEFRETMTAYLKGHNKWNADISHSWDDAFDK
           ---D-G--HK-R----AQ---FR-----YLKG--KW------SW----D-
Sequence 2 KAKDFGKSHKSR-TSPAQLDNFRKSLVVYLKGATKWDSAVESSWAPVLDF

Sequence 1 AFSVIFEVLES
           -FS-----L--
Sequence 2 VFSTLKNEL--

Alignment 11
Sequence 1:
Sequence 2: Allergen Chi t 1.01, Sequence: P02229
Sequence identity: 39.07 (59/151)
Sequence 1 ---------DPEWHTLDAHEVEQVQATWKAVSHDEVEILYTVFKAHPDIM
           ---------------L-A-----VQA----V--D-V-ILY-VFKA-P-IM
Sequence 2 MKFLILALCFAAASALSADQISTVQASFDKVKGDPVGILYAVFKADPSIM

Sequence 1 AKFPKFAGKDLEAIKDTADFAVHASRIIGFFGEYVTLLGSSGNQAAIRTL
           AKF--FAGKDLE-IK-TA-F--HA-RI-GFF----------G----I---
Sequence 2 AKFTQFAGKDLESIKGTAPFEIHANRIVGFFSKII------GELPNIEAD

Sequence 1 LHDLGVFHKTRGITKAQFGEFRETMTAYLKGHNKWNADISHSWDDAFDKA
           -------HK-RG-T--Q---FR-----Y-K-H----A-----W----D--
Sequence 2 VNTFVASHKPRGVTHDQLNNFRAGFVSYMKAHTDF-AGAEAAWGATLDTF

Sequence 1 FSVIFEVLES
           F--IF-----
Sequence 2 FGMIFSKM--

Alignment 12
Sequence 1:
Sequence 2: Allergen Chi t 1.0201, Sequence: P02230
Sequence identity: 35.10 (53/151)
Sequence 1 ---------DPEWHTLDAHEVEQVQATWKAVSHDEVEILYTVFKAHPDIM
           ---------------L-A-----VQ-----V--D-V-ILY-VFKA-P-I-
Sequence 2 MKLLILALCFAAASALTADQISTVQSSFAGVKGDAVGILYAVFKADPSIQ

Sequence 1 AKFPKFAGKDLEAIKDTADFAVHASRIIGFFGEYVTLLGSSGNQAAIRTL
           AKF--FAGKDL--IK--ADF--HA--I-GFF----------G----I---
Sequence 2 AKFTQFAGKDLDSIKGSADFSAHANKIVGFFSKII------GDLPNIDGD

Sequence 1 LHDLGVFHKTRGITKAQFGEFRETMTAYLKGHNKWNADISHSWDDAFDKA
           -------H--RG-T--Q---FR-----Y-K-H----A-----W----D--
Sequence 2 VTTFVASHTPRGVTHDQLNNFRAGFVSYMKAHTDF-AGAEAAWGATLDAF

Sequence 1 FSVIFEVLES
           F---F-----
Sequence 2 FGMVFAKM--

Alignment 13
Sequence 1:
Sequence 2: Allergen Chi t 4, Sequence: P02231
Sequence identity: 34.44 (52/151)
Sequence 1 --DPEWHTLDAHEVEQVQATWKAVSHDEVEILYTVFKAHPDIMAKFPKFA
           ---P---------V--V---W-------VEILY------P-----F-K--
Sequence 2 VATPAMPSMTDAQVAAVKGDWEKIKGSGVEILYFFLNKFPGNFPMFKKL-

Sequence 1 GKDLEAIKDTADFAVHASRIIGFFGEYVTLLGSSGNQAAIRTLLHDLGVF
           G-DL-A-K-TA-F---A--II-F-------LGS---------LL--LG--
Sequence 2 GNDLAAAKGTAEFKDQADKIIAFLQGVIEKLGS--DMGGAKALLNQLGTS

Sequence 1 HKTRGITKAQFGEFRETMTAYLKGHNKWNADISHSWDDAFDKAFSVIFEV
           HK--GITK-QF--FR---T--L-G-------I---W----D--F-VIF--
Sequence 2 HKAMGITKDQFDQFRQALTELL-GNLGFGGNIG-AWNATVDLMFHVIFNA

Sequence 1 LES---
           L-----
Sequence 2 LDGTPV