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UniProtKB/Swiss-Prot entry P25963


[Entry info] [Name and origin] [References] [Comments] [Cross-references] [Keywords] [Features] [Sequence] [Tools]

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Entry information
Entry name IKBA_HUMAN
Primary accession number P25963
Secondary accession numbers None
Integrated into Swiss-Prot on May 1, 1992
Sequence was last modified on May 1, 1992 (Sequence version 1)
Annotations were last modified on    June 16, 2009 (Entry version 109)
Name and origin of the protein
Protein name NF-kappa-B inhibitor alpha
Synonyms I-kappa-B-alpha
IkappaBalpha
IkB-alpha
Major histocompatibility complex enhancer-binding protein MAD3
Gene name
Name: NFKBIA
Synonyms: IKBA, MAD3, NFKBI
From
Homo sapiens (Human) [TaxID: 9606] 
Taxonomy Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.
Protein existence 1: Evidence at protein level;
References
[1]
NUCLEOTIDE SEQUENCE [MRNA].
TISSUE=Monocyte;
DOI=10.1016/0092-8674(91)90022-Q; PubMed=1829648 [NCBI, ExPASy, EBI, Israel, Japan]
Haskill S., Beg A.A., Tompkins S.M., Morris J.S., Yurochko A.D., Sampson-Johannes A., Mondal K., Ralph P., Baldwin A.S. Jr.;
"Characterization of an immediate-early gene induced in adherent monocytes that encodes I kappa B-like activity.";
Cell 65:1281-1289(1991).
[2]
NUCLEOTIDE SEQUENCE [GENOMIC DNA].
TISSUE=Lymph node;
DOI=10.1084/jem.191.2.395; PubMed=10637284 [NCBI, ExPASy, EBI, Israel, Japan]
Jungnickel B., Staratschek-Jox A., Braeuninger A., Spieker T., Wolf J., Diehl V., Hansmann M.-L., Rajewsky K., Kueppers R.;
"Clonal deleterious mutations in the IkappaB alpha gene in the malignant cells in Hodgkin's lymphoma.";
J. Exp. Med. 191:395-402(2000).
[3]
NUCLEOTIDE SEQUENCE [MRNA].
Liu B., Huang A.;
"Homo sapiens IkBa mRNA.";
Submitted (APR-2001) to the EMBL/GenBank/DDBJ databases.
[4]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
Kalnine N., Chen X., Rolfs A., Halleck A., Hines L., Eisenstein S., Koundinya M., Raphael J., Moreira D., Kelley T., LaBaer J., Lin Y., Phelan M., Farmer A.;
"Cloning of human full-length CDSs in BD Creator(TM) system donor vector.";
Submitted (OCT-2004) to the EMBL/GenBank/DDBJ databases.
[5]
NUCLEOTIDE SEQUENCE [GENOMIC DNA].
SeattleSNPs variation discovery resource;
Submitted (DEC-2003) to the EMBL/GenBank/DDBJ databases.
[6]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
TISSUE=Brain, and Kidney;
DOI=10.1101/gr.2596504; PubMed=15489334 [NCBI, ExPASy, EBI, Israel, Japan]
The MGC Project Team;
"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).";
Genome Res. 14:2121-2127(2004).
[7]
INTERACTION WITH RELA.
PubMed=1493333 [NCBI, ExPASy, EBI, Israel, Japan]
Ganchi P.A., Sun S.C., Greene W.C., Ballard D.W.;
"I kappa B/MAD-3 masks the nuclear localization signal of NF-kappa B p65 and requires the transactivation domain to inhibit NF-kappa B p65 DNA binding.";
Mol. Biol. Cell 3:1339-1352(1992).
[8]
UBIQUITINATION AT LYS-21 AND LYS-22, FUNCTION, AND MUTAGENESIS OF LYS-21; LYS-22; LYS-38 AND LYS-47.
DOI=10.1073/pnas.92.24.11259; PubMed=7479976 [NCBI, ExPASy, EBI, Israel, Japan]
Scherer D.C., Brockman J.A., Chen Z., Maniatis T., Ballard D.W.;
"Signal-induced degradation of IkappaB alpha requires site-specific ubiquitination.";
Proc. Natl. Acad. Sci. U.S.A. 92:11259-11263(1995).
[9]
PHOSPHORYLATION AT TYR-42, AND MUTAGENESIS OF TYR-42.
DOI=10.1016/S0092-8674(00)80153-1; PubMed=8797825 [NCBI, ExPASy, EBI, Israel, Japan]
Imbert V., Rupec R.A., Livolsi A., Pahl H.L., Traenckner E.B.-M., Mueller-Dieckmann C., Farahifar D., Rossi B., Auberger P., Baeuerle P.A., Peyron J.-F.;
"Tyrosine phosphorylation of IkappaB-alpha activates NF-kappaB without proteolytic degradation of IkappaB-alpha.";
Cell 86:787-798(1996).
[10]
PHOSPHORYLATION AT SER-283; SER-288; SER-293 AND THR-291.
PubMed=8622692 [NCBI, ExPASy, EBI, Israel, Japan]
McElhinny J.A., Trushin S.A., Bren G.D., Chester N., Paya C.V.;
"Casein kinase II phosphorylates I kappa B alpha at S-283, S-289, S-293, and T-291 and is required for its degradation.";
Mol. Cell. Biol. 16:899-906(1996).
[11]
MUTAGENESIS OF LYS-21; LYS-22; ASP-31; SER-32; ASP-35; SER-36; SER-234; SER-262 AND THR-263.
PubMed=8657102 [NCBI, ExPASy, EBI, Israel, Japan]
DiDonato J.A., Mercurio F., Rosette C., Wu-Li J., Suyang H., Ghosh S., Karin M.;
"Mapping of the inducible IkappaB phosphorylation sites that signal its ubiquitination and degradation.";
Mol. Cell. Biol. 16:1295-1304(1996).
[12]
PHOSPHORYLATION AT THR-291; SER-283 AND THR-299.
PubMed=8657113 [NCBI, ExPASy, EBI, Israel, Japan]
Lin R., Beauparlant P., Makris C., Meloche S., Hiscott J.;
"Phosphorylation of IkappaBalpha in the C-terminal PEST domain by casein kinase II affects intrinsic protein stability.";
Mol. Cell. Biol. 16:1401-1409(1996).
[13]
SUBCELLULAR LOCATION, NUCLEAR LOCALIZATION SIGNAL, AND MUTAGENESIS OF 115-LEU--ILE-120.
PubMed=9566872 [NCBI, ExPASy, EBI, Israel, Japan]
Sachdev S., Hoffmann A., Hannink M.;
"Nuclear localization of IkappaB alpha is mediated by the second ankyrin repeat: the IkappaB alpha ankyrin repeats define a novel class of cis-acting nuclear import sequences.";
Mol. Cell. Biol. 18:2524-2534(1998).
[14]
INTERACTION WITH HBV PROTEIN X.
PubMed=10454581 [NCBI, ExPASy, EBI, Israel, Japan]
Weil R., Sirma H., Giannini C., Kremsdorf D., Bessia C., Dargemont C., Brechot C., Israel A.;
"Direct association and nuclear import of the hepatitis B virus X protein with the NF-kappaB inhibitor IkappaBalpha.";
Mol. Cell. Biol. 19:6345-6354(1999).
[15]
PHOSPHORYLATION AT SER-32 AND SER-36.
DOI=10.1016/S1097-2765(00)80445-1; PubMed=10882136 [NCBI, ExPASy, EBI, Israel, Japan]
Peters R.T., Liao S.-M., Maniatis T.;
"IKK epsilon is part of a novel PMA-inducible IkappaB kinase complex.";
Mol. Cell 5:513-522(2000).
[16]
INTERACTION WITH NKIRAS1 AND NKIRAS2.
DOI=10.1126/science.287.5454.869; PubMed=10657303 [NCBI, ExPASy, EBI, Israel, Japan]
Fenwick C., Na S.-Y., Voll R.E., Zhong H., Im S.-Y., Lee J.W., Ghosh S.;
"A subclass of Ras proteins that regulate the degradation of IkappaB.";
Science 287:869-873(2000).
[17]
SUBCELLUAR LOCATION, NUCLEAR EXPORT SIGNAL, AND MUTAGENESIS OF 45-MET--ILE-52.
DOI=10.1073/pnas.97.3.1014; PubMed=10655476 [NCBI, ExPASy, EBI, Israel, Japan]
Huang T.T., Kudo N., Yoshida M., Miyamoto S.;
"A nuclear export signal in the N-terminal regulatory domain of IkappaBalpha controls cytoplasmic localization of inactive NF-kappaB/IkappaBalpha complexes.";
Proc. Natl. Acad. Sci. U.S.A. 97:1014-1019(2000).
[18]
SUMOYLATION AT LYS-21, SUBCELLULAR LOCATION, AND MUTAGENESIS OF LYS-21 AND LYS-22.
DOI=10.1074/jbc.M009476200; PubMed=11124955 [NCBI, ExPASy, EBI, Israel, Japan]
Rodriguez M.S., Dargemont C., Hay R.T.;
"SUMO-1 conjugation in vivo requires both a consensus modification motif and nuclear targeting.";
J. Biol. Chem. 276:12654-12659(2001).
[19]
INTERACTION WITH RWDD3, SUMOYLATION, AND MUTAGENESIS OF LYS-21 AND LSY-22.
DOI=10.1016/j.cell.2007.07.044; PubMed=17956732 [NCBI, ExPASy, EBI, Israel, Japan]
Carbia-Nagashima A., Gerez J., Perez-Castro C., Paez-Pereda M., Silberstein S., Stalla G.K., Holsboer F., Arzt E.;
"RSUME, a small RWD-containing protein, enhances SUMO conjugation and stabilizes HIF-1alpha during hypoxia.";
Cell 131:309-323(2007).
[20]
X-RAY CRYSTALLOGRAPHY (2.7 ANGSTROMS) OF 70-282.
DOI=10.1016/S0092-8674(00)81698-0; PubMed=9865693 [NCBI, ExPASy, EBI, Israel, Japan]
Jacobs M.D., Harrison S.C.;
"Structure of an IkappaBalpha/NF-kappaB complex.";
Cell 95:749-758(1998).
[21]
X-RAY CRYSTALLOGRAPHY (2.3 ANGSTROMS) OF 73-302.
DOI=10.1016/S0092-8674(00)81699-2; PubMed=9865694 [NCBI, ExPASy, EBI, Israel, Japan]
Huxford T., Huang D.B., Malek S., Ghosh G.;
"The crystal structure of the IkappaBalpha/NF-kappaB complex reveals mechanisms of NF-kappaB inactivation.";
Cell 95:759-770(1998).
[22]
VARIANT ADEDAID ILE-32.
DOI=10.1172/JCI200318714; PubMed=14523047 [NCBI, ExPASy, EBI, Israel, Japan]
Courtois G., Smahi A., Reichenbach J., Doffinger R., Cancrini C., Bonnet M., Puel A., Chable-Bessia C., Yamaoka S., Feinberg J., Dupuis-Girod S., Bodemer C., Livadiotti S., Novelli F., Rossi P., Fischer A., Israel A., Munnich A., Le Deist F., Casanova J.L.;
"A hypermorphic IkappaBalpha mutation is associated with autosomal dominant anhidrotic ectodermal dysplasia and T cell immunodeficiency.";
J. Clin. Invest. 112:1108-1115(2003).
[23]
INVOLVEMENT IN ADEDAID.
DOI=10.1002/humu.20740; PubMed=18412279 [NCBI, ExPASy, EBI, Israel, Japan]
Lopez-Granados E., Keenan J.E., Kinney M.C., Leo H., Jain N., Ma C.A., Quinones R., Gelfand E.W., Jain A.;
"A novel mutation in NFKBIA/IKBA results in a degradation-resistant N-truncated protein and is associated with ectodermal dysplasia with immunodeficiency.";
Hum. Mutat. 29:861-868(2008).
Comments
Copyright
Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.
Cross-references
Sequence databases
EMBL
M69043; AAA16489.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AJ249294; CAB65556.2; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AJ249295; CAB65556.2; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AJ249283; CAB65556.2; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AJ249284; CAB65556.2; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AJ249285; CAB65556.2; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AJ249286; CAB65556.2; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AY033600; AAK51149.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BT007091; AAP35754.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AY496422; AAR29599.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC002601; AAH02601.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC004983; AAH04983.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
IPI IPI00018330; -.
PIR A39935; A39935.
RefSeq NP_065390.1; -.
UniGene Hs.81328
3D structure databases
PDB
1IKN; X-ray; 2.30 A; D=67-302.[ExPASy / RCSB / EBI]
1NFI; X-ray; 2.70 A; E/F=70-282.[ExPASy / RCSB / EBI]
Detailed list of linked structures.
PDBsum 1IKN; -.
1NFI; -.
DisProt DP00468; -.
ModBase P25963.
Protein-protein interaction databases
DIP DIP:139N; -.
IntAct P25963; 58.
PTM databases
PhosphoSite P25963; -.
Enzyme and pathway databases
Pathway_Interaction_DB nfkappabatypicalpathway; Atypical NF-kappaB pathway.
aurora_a_pathway; Aurora A signaling.
bcr_5pathway; BCR signaling pathway.
nfkappabcanonicalpathway; Canonical NF-kappaB pathway.
ceramidepathway; Ceramide signaling pathway.
hivnefpathway; HIV-1 Nef: Negative effector of Fas and TNF-alpha.
il23pathway; IL23-mediated signaling events.
lysophospholipid_pathway; LPA receptor mediated events.
avb3_opn_pathway; Osteopontin-mediated events.
hdac_classi_pathway; Signaling events mediated by HDAC Class I.
Reactome REACT_11061; Signalling by NGF.
REACT_6900; Signaling in Immune system.
Organism-specific databases
GeneCards GC14M034940; -.
H-InvDB HIX0011599; -.
HGNC HGNC:7797; NFKBIA.
GenAtlas NFKBIA.
HPA CAB003815; -.
MIM 164008; gene. [NCBI / EBI]
612132; phenotype. [NCBI / EBI]
Orphanet 69088; Ectodermal dysplasia - anhidrotic, with immunodeficiency - osteopetrosis - lymphedema.
98813; Hypohidrotic ectodermal dysplasia with immunodeficiency.
PharmGKB PA31601; -.
Gene expression databases
ArrayExpress P25963; -.
Bgee P25963; -.
CleanEx HS_NFKBIA; -.
GermOnline ENSG00000100906; Homo sapiens.
Ontologies
GO
GO:0005829; Cellular component: cytosol (inferred from experiment from Reactome).
GO:0033256; Cellular component: I-kappaB/NF-kappaB complex (traceable author statement from UniProtKB).
GO:0005634; Cellular component: nucleus (inferred from direct assay from UniProtKB).
GO:0042802; Molecular function: identical protein binding (inferred from physical interaction from IntAct).
GO:0051059; Molecular function: NF-kappaB binding (inferred from physical interaction from UniProtKB).
GO:0008139; Molecular function: nuclear localization sequence binding (inferred from physical interaction from UniProtKB).
GO:0031625; Molecular function: ubiquitin protein ligase binding (inferred from physical interaction from UniProtKB).
GO:0006915; Biological process: apoptosis (traceable author statement from ProtInc).
GO:0007253; Biological process: cytoplasmic sequestering of NF-kappaB (inferred from mutant phenotype from UniProtKB).
GO:0044419; Biological process: interspecies interaction between organisms (inferred from electronic annotation from UniProtKB-KW).
GO:0043392; Biological process: negative regulation of DNA binding (non-traceable author statement from UniProtKB).
GO:0010745; Biological process: negative regulation of foam cell differentiation (inferred from mutant phenotype from UniProtKB).
GO:0010888; Biological process: negative regulation of lipid storage (inferred from mutant phenotype from UniProtKB).
GO:0032270; Biological process: positive regulation of cellular protein metabolic process (inferred from mutant phenotype from UniProtKB).
GO:0010875; Biological process: positive regulation of cholesterol efflux (inferred from mutant phenotype from UniProtKB).
GO:0010552; Biological process: positive regulation of specific transcription from RNA polymerase II promoter (inferred from mutant phenotype from UniProtKB).
QuickGo view.
Family and domain databases
InterPro IPR002110; ANK.
IPR015681; NF_kB_inhbitor.
Graphical view of domain structure.
Gene3D G3DSA:1.25.40.20; ANK; 1.
PANTHER PTHR18958:SF236; NF_kB_inhbitor; 1.
Pfam PF00023; Ank; 5.
Pfam graphical view of domain structure.
SMART SM00248; ANK; 5.
SMART graphical view of domain structure.
PROSITE PS50297; ANK_REP_REGION; 1.
PS50088; ANK_REPEAT; 3.
PROSITE graphical view of domain structure (profiles).
Proteomic databases
PeptideAtlas P25963; -.
PRIDE P25963; -.
Genome annotation databases
Ensembl ENSG00000100906; Homo sapiens. [Contig view]
GeneID 4792; -.
KEGG hsa:4792; -.
Phylogenomic databases
HOGENOM P25963; -.
HOVERGEN P25963; -.
OMA P25963; LKAGCDP.
Other
NextBio 18466; -.
PMAP-CutDB P25963; -.
SOURCE NFKBIA; Homo sapiens.
ProtoNet P25963.
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
3D-structure; ANK repeat; Cytoplasm; Disease mutation; Ectodermal dysplasia; Host-virus interaction; Isopeptide bond; Nucleus; Phosphoprotein; Repeat; Ubl conjugation.
Features
SEVIEWER logo Feature table viewer FT aligner logo Feature aligner
KeyFrom   To Length Description FTId
CHAIN   1   317  317     NF-kappa-B inhibitor alpha. PRO_0000066999
REPEAT   73   103  31     ANK 1. 
REPEAT   110   139  30     ANK 2. 
REPEAT   143   172  30     ANK 3. 
REPEAT   182   211  30     ANK 4. 
REPEAT   216   245  30     ANK 5. 
MOTIF   45    54  10     Nuclear export signal. 
MOTIF   110   120  11     Nuclear import signal. 
MOD_RES   32    32        Phosphoserine; by IKKA and IKKE. 
MOD_RES   36    36        Phosphoserine; by IKKA, IKKB and IKKE. 
MOD_RES   42    42        Phosphotyrosine; by Tyr-kinases. 
MOD_RES   283   283        Phosphoserine; by CK2. 
MOD_RES   288   288        Phosphoserine; by CK2. 
MOD_RES   291   291        Phosphothreonine; by CK2. 
MOD_RES   293   293        Phosphoserine; by CK2. 
MOD_RES   299   299        Phosphothreonine; by CK2. 
CROSSLNK   21    21        Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO). 
CROSSLNK   22    22        Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin). 
VARIANT   32    32  1     S -> I (in ADEDAID). VAR_034871 
MUTAGEN   21    21        K->R: Little change in Tax-stimulated transactivation. No sumoylation. Greatly reduced Tax- or cytokine-stimulated transactivation and decrease in ubiquitination and degradation; when associated with R-22. 
MUTAGEN   22    22        K->R: Little change in Tax-stimulated transactivation. No sumoylation. Greatly reduced Tax- or cytokine-stimulated transactivation and decrease in ubiquitination and degradation; when associated with R-21. 
MUTAGEN   31    31        D->A: Loss of phosphorylation; when associated with A-35. 
MUTAGEN   32    32        S->A: Loss of phosphorylation and degradation; when associated with A-36. 
MUTAGEN   32    32        S->T: Decrease in phosphorylation and degradation; when associated with T-36. 
MUTAGEN   35    35        D->A: Loss in phosphorylation; when associated with A-31. 
MUTAGEN   35    35        D->G: No change neither in phosphorylation, nor on degradation. 
MUTAGEN   36    36        S->A: Loss of phosphorylation and degradation; when associated with A-32. 
MUTAGEN   36    36        S->T: Decrease in phosphorylation and degradation; when associated with T-32. 
MUTAGEN   38    38        K->R: No change in Tax-stimulated transactivation. No change in Tax-stimulated transactivation; when associated with R-47. 
MUTAGEN   42    42        Y->F: No phosphorylation. 
MUTAGEN   45    52        MVKELQEI->AAKEAQEA: No nuclear export. 
MUTAGEN   47    47        K->R: Little change in Tax-stimulated transactivation. No change in Tax-stimulated transactivation; when associated with R-38. 
MUTAGEN   115   120        LHLAVI->AHAAVA: Greatly reduced nuclear localization. Great reduction in its ability to inhibit DNA binding of RELA. 
MUTAGEN   234   234        S->A: No inducible ubiquitination nor protein degradation. 
MUTAGEN   262   262        S->A: No inducible ubiquitination nor protein degradation. 
MUTAGEN   263   263        T->A: No inducible ubiquitination nor protein degradation. 
HELIX   79    83  5      
STRAND   87    91  5      
HELIX   114   120  7      
HELIX   124   128  5      
HELIX   147   154  8      
HELIX   157   165  9      
TURN   167   170  4      
STRAND   171   173  3      
HELIX   175   177  3      
HELIX   186   192  7      
HELIX   196   205  10      
TURN   214   216  3      
HELIX   220   226  7      
HELIX   230   237  8      
TURN   238   240  3      
HELIX   253   256  4      
HELIX   263   270  8      
HELIX   275   277  3      
TURN   285   287  3      
Sequence information
Length: 317 AA [This is the length of the unprocessed precursor] Molecular weight: 35609 Da [This is the MW of the unprocessed precursor] CRC64: 088B313226786395 [This is a checksum on the sequence]
        10         20         30         40         50         60 
MFQAAERPQE WAMEGPRDGL KKERLLDDRH DSGLDSMKDE EYEQMVKELQ EIRLEPQEVP 

        70         80         90        100        110        120 
RGSEPWKQQL TEDGDSFLHL AIIHEEKALT MEVIRQVKGD LAFLNFQNNL QQTPLHLAVI 

       130        140        150        160        170        180 
TNQPEIAEAL LGAGCDPELR DFRGNTPLHL ACEQGCLASV GVLTQSCTTP HLHSILKATN 

       190        200        210        220        230        240 
YNGHTCLHLA SIHGYLGIVE LLVSLGADVN AQEPCNGRTA LHLAVDLQNP DLVSLLLKCG 

       250        260        270        280        290        300 
ADVNRVTYQG YSPYQLTWGR PSTRIQQQLG QLTLENLQML PESEDEESYD TESEFTEFTE 

       310 
DELPYDDCVF GGQRLTL 

P25963 in FASTA format

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