| UniProt ID | IC1_HUMAN | |
|---|---|---|
| UniProt AC | P05155 | |
| Protein Name | Plasma protease C1 inhibitor | |
| Gene Name | SERPING1 | |
| Organism | Homo sapiens (Human). | |
| Sequence Length | 500 | |
| Subcellular Localization | Secreted. | |
| Protein Description | Activation of the C1 complex is under control of the C1-inhibitor. It forms a proteolytically inactive stoichiometric complex with the C1r or C1s proteases. May play a potentially crucial role in regulating important physiological pathways including complement activation, blood coagulation, fibrinolysis and the generation of kinins. Very efficient inhibitor of FXIIa. Inhibits chymotrypsin and kallikrein.. | |
| Protein Sequence | MASRLTLLTLLLLLLAGDRASSNPNATSSSSQDPESLQDRGEGKVATTVISKMLFVEPILEVSSLPTTNSTTNSATKITANTTDEPTTQPTTEPTTQPTIQPTQPTTQLPTDSPTQPTTGSFCPGPVTLCSDLESHSTEAVLGDALVDFSLKLYHAFSAMKKVETNMAFSPFSIASLLTQVLLGAGENTKTNLESILSYPKDFTCVHQALKGFTTKGVTSVSQIFHSPDLAIRDTFVNASRTLYSSSPRVLSNNSDANLELINTWVAKNTNNKISRLLDSLPSDTRLVLLNAIYLSAKWKTTFDPKKTRMEPFHFKNSVIKVPMMNSKKYPVAHFIDQTLKAKVGQLQLSHNLSLVILVPQNLKHRLEDMEQALSPSVFKAIMEKLEMSKFQPTLLTLPRIKVTTSQDMLSIMEKLEFFDFSYDLNLCGLTEDPDLQVSAMQHQTVLELTETGVEAAAASAISVARTLLVFEVQQPFLFVLWDQQHKFPVFMGRVYDPRA | |
| Overview of Protein Modification Sites with Functional and Structural Information | ||
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* ASA = Accessible Surface Area
| Locations | Modification | Substrate Peptides & Secondary Structure |
ASA (%) | Reference | Orthologous Protein Cluster |
|---|---|---|---|---|---|
| 4 | Methylation | ----MASRLTLLTLL ----CHHHHHHHHHH | 23.35 | 24391367 | |
| 22 | Phosphorylation | LAGDRASSNPNATSS HHCCHHHCCCCCCCC | 56.15 | 25954137 | |
| 25 | N-linked_Glycosylation | DRASSNPNATSSSSQ CHHHCCCCCCCCCCC | 61.16 | 22171320 | |
| 25 | N-linked_Glycosylation | DRASSNPNATSSSSQ CHHHCCCCCCCCCCC | 61.16 | 22171320 | |
| 27 | O-linked_Glycosylation | ASSNPNATSSSSQDP HHCCCCCCCCCCCCH | 35.46 | OGP | |
| 28 | O-linked_Glycosylation | SSNPNATSSSSQDPE HCCCCCCCCCCCCHH | 26.30 | OGP | |
| 28 | Phosphorylation | SSNPNATSSSSQDPE HCCCCCCCCCCCCHH | 26.30 | 25954137 | |
| 30 | O-linked_Glycosylation | NPNATSSSSQDPESL CCCCCCCCCCCHHHH | 31.61 | OGP | |
| 31 | O-linked_Glycosylation | PNATSSSSQDPESLQ CCCCCCCCCCHHHHH | 40.32 | OGP | |
| 36 | Phosphorylation | SSSQDPESLQDRGEG CCCCCHHHHHHCCCC | 36.40 | 25954137 | |
| 47 | O-linked_Glycosylation | RGEGKVATTVISKML CCCCHHHHHHHHHHH | 25.28 | 22171320 | |
| 48 | O-linked_Glycosylation | GEGKVATTVISKMLF CCCHHHHHHHHHHHC | 13.20 | 22171320 | |
| 48 | O-linked_Glycosylation | GEGKVATTVISKMLF CCCHHHHHHHHHHHC | 13.20 | 22171320 | |
| 51 | Phosphorylation | KVATTVISKMLFVEP HHHHHHHHHHHCCCC | 14.00 | 25954137 | |
| 63 | O-linked_Glycosylation | VEPILEVSSLPTTNS CCCEEEECCCCCCCC | 19.44 | OGP | |
| 64 | O-linked_Glycosylation | EPILEVSSLPTTNST CCEEEECCCCCCCCC | 43.47 | 3756141 | |
| 64 | O-linked_Glycosylation | EPILEVSSLPTTNST CCEEEECCCCCCCCC | 43.47 | UniProtKB CARBOHYD | |
| 67 | O-linked_Glycosylation | LEVSSLPTTNSTTNS EEECCCCCCCCCCCC | 43.85 | OGP | |
| 68 | O-linked_Glycosylation | EVSSLPTTNSTTNSA EECCCCCCCCCCCCC | 25.82 | OGP | |
| 69 | N-linked_Glycosylation | VSSLPTTNSTTNSAT ECCCCCCCCCCCCCE | 39.58 | 3756141 | |
| 69 | N-linked_Glycosylation | VSSLPTTNSTTNSAT ECCCCCCCCCCCCCE | 39.58 | 16335952 | |
| 70 | O-linked_Glycosylation | SSLPTTNSTTNSATK CCCCCCCCCCCCCEE | 34.22 | OGP | |
| 71 | O-linked_Glycosylation | SLPTTNSTTNSATKI CCCCCCCCCCCCEEE | 31.87 | 3756141 | |
| 71 | O-linked_Glycosylation | SLPTTNSTTNSATKI CCCCCCCCCCCCEEE | 31.87 | UniProtKB CARBOHYD | |
| 72 | O-linked_Glycosylation | LPTTNSTTNSATKIT CCCCCCCCCCCEEEE | 27.31 | OGP | |
| 76 | O-linked_Glycosylation | NSTTNSATKITANTT CCCCCCCEEEEECCC | 23.85 | OGP | |
| 81 | N-linked_Glycosylation | SATKITANTTDEPTT CCEEEEECCCCCCCC | 34.56 | 19159218 | |
| 81 | N-linked_Glycosylation | SATKITANTTDEPTT CCEEEEECCCCCCCC | 34.56 | 3756141 | |
| 83 | O-linked_Glycosylation | TKITANTTDEPTTQP EEEEECCCCCCCCCC | 37.87 | 3756141 | |
| 83 | O-linked_Glycosylation | TKITANTTDEPTTQP EEEEECCCCCCCCCC | 37.87 | UniProtKB CARBOHYD | |
| 88 | O-linked_Glycosylation | NTTDEPTTQPTTEPT CCCCCCCCCCCCCCC | 43.18 | UniProtKB CARBOHYD | |
| 88 | O-linked_Glycosylation | NTTDEPTTQPTTEPT CCCCCCCCCCCCCCC | 43.18 | 3756141 | |
| 92 | O-linked_Glycosylation | EPTTQPTTEPTTQPT CCCCCCCCCCCCCCC | 46.80 | UniProtKB CARBOHYD | |
| 92 | O-linked_Glycosylation | EPTTQPTTEPTTQPT CCCCCCCCCCCCCCC | 46.80 | 3756141 | |
| 96 | O-linked_Glycosylation | QPTTEPTTQPTIQPT CCCCCCCCCCCCCCC | 43.18 | UniProtKB CARBOHYD | |
| 96 | O-linked_Glycosylation | QPTTEPTTQPTIQPT CCCCCCCCCCCCCCC | 43.18 | 3756141 | |
| 113 | O-linked_Glycosylation | TTQLPTDSPTQPTTG CCCCCCCCCCCCCCC | 32.12 | OGP | |
| 115 | O-linked_Glycosylation | QLPTDSPTQPTTGSF CCCCCCCCCCCCCCC | 51.65 | OGP | |
| 118 | O-linked_Glycosylation | TDSPTQPTTGSFCPG CCCCCCCCCCCCCCC | 33.69 | OGP | |
| 119 | O-linked_Glycosylation | DSPTQPTTGSFCPGP CCCCCCCCCCCCCCC | 37.20 | OGP | |
| 176 | Phosphorylation | FSPFSIASLLTQVLL CCHHHHHHHHHHHHH | 23.42 | 24719451 | |
| 179 | Phosphorylation | FSIASLLTQVLLGAG HHHHHHHHHHHHCCC | 23.17 | 24719451 | |
| 189 | Phosphorylation | LLGAGENTKTNLESI HHCCCCCCCCCHHHH | 34.64 | 24719451 | |
| 198 | Phosphorylation | TNLESILSYPKDFTC CCHHHHHCCCCCCHH | 37.41 | 17192257 | |
| 199 | Phosphorylation | NLESILSYPKDFTCV CHHHHHCCCCCCHHH | 15.74 | 23312004 | |
| 238 | N-linked_Glycosylation | AIRDTFVNASRTLYS CHHHHCCCHHHHHHC | 28.18 | 17488724 | |
| 238 | N-linked_Glycosylation | AIRDTFVNASRTLYS CHHHHCCCHHHHHHC | 28.18 | 17488724 | |
| 253 | N-linked_Glycosylation | SSPRVLSNNSDANLE CCCCHHCCCCCCCHH | 48.11 | 17623646 | |
| 253 | N-linked_Glycosylation | SSPRVLSNNSDANLE CCCCHHCCCCCCCHH | 48.11 | 18638581 | |
| 272 | N-linked_Glycosylation | WVAKNTNNKISRLLD HHHHHCCCHHHHHHH | 40.79 | UniProtKB CARBOHYD | |
| 294 | Phosphorylation | LVLLNAIYLSAKWKT HHHHHHHHHHHCCCC | 7.68 | - | |
| 296 | Phosphorylation | LLNAIYLSAKWKTTF HHHHHHHHHCCCCCC | 15.72 | - | |
| 316 | Acetylation | RMEPFHFKNSVIKVP CCCCCCCCCCEEEEE | 39.48 | 164205 | |
| 321 | Acetylation | HFKNSVIKVPMMNSK CCCCCEEEEECCCCC | 37.82 | 164209 | |
| 350 | Phosphorylation | KVGQLQLSHNLSLVI HHCEEECCCCEEEEE | 9.43 | 29888752 | |
| 352 | N-linked_Glycosylation | GQLQLSHNLSLVILV CEEECCCCEEEEEEE | 28.13 | 17623646 | |
| 352 | N-linked_Glycosylation | GQLQLSHNLSLVILV CEEECCCCEEEEEEE | 28.13 | 19838169 | |
| 354 | Phosphorylation | LQLSHNLSLVILVPQ EECCCCEEEEEEEEC | 26.38 | 29888752 | |
| 375 | Phosphorylation | EDMEQALSPSVFKAI HHHHHHHCHHHHHHH | 20.39 | - | |
| 385 | Acetylation | VFKAIMEKLEMSKFQ HHHHHHHHHHHHCCC | 32.16 | 27178108 | |
| 389 | Phosphorylation | IMEKLEMSKFQPTLL HHHHHHHHCCCCCEE | 22.42 | 29396449 | |
| 397 | Phosphorylation | KFQPTLLTLPRIKVT CCCCCEECCCCEEEE | 37.52 | 24719451 | |
| 460 | Phosphorylation | GVEAAAASAISVART HHHHHHHHHHHHHHH | 22.78 | 24275569 |
| Modified Location | Modified Residue | Modification | Type of Upstream Proteins | Gene Name of Upstream Proteins | UniProt AC of Upstream Proteins | Sources |
|---|---|---|---|---|---|---|
Oops, there are no upstream regulatory protein records of IC1_HUMAN !! | ||||||
| Modified Location | Modified Residue | Modification | Function | Reference | ||
|---|---|---|---|---|---|---|
Oops, there are no descriptions of PTM sites of IC1_HUMAN !! | ||||||
* Distance = the distance between SAP position and PTM sites.
| Modified Location | Modification | Variant Position (Distance <= 10) |
Residue Change | SAP | Related Disease | Reference |
|---|---|---|---|---|---|---|
Oops, there are no SNP-PTM records of IC1_HUMAN !! | ||||||
| Interacting Protein | Gene Name | Interaction Type | PPI Reference | Domain-Domain Interactions |
|---|---|---|---|---|
| LYAM2_HUMAN | SELE | physical | 14568956 | |
| LYAM3_HUMAN | SELP | physical | 14568956 | |
| C1S_HUMAN | C1S | physical | 6604523 | |
| MASP1_HUMAN | MASP1 | physical | 10946292 | |
| MASP2_HUMAN | MASP2 | physical | 10946292 | |
| TPA_HUMAN | PLAT | physical | 28514442 | |
| ARFG2_HUMAN | ARFGAP2 | physical | 28514442 | |
| GRN_HUMAN | GRN | physical | 28514442 |
| Kegg Disease | ||||||
|---|---|---|---|---|---|---|
| There are no disease associations of PTM sites. | ||||||
| OMIM Disease | ||||||
| 106100 | Hereditary angioedema (HAE) | |||||
| Kegg Drug | ||||||
| There are no disease associations of PTM sites. | ||||||
| DrugBank | ||||||
| There are no disease associations of PTM sites. | ||||||
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| N-linked Glycosylation | |
| Reference | PubMed |
| "C1 inhibitor serpin domain structure reveals the likely mechanism ofheparin potentiation and conformational disease."; Beinrohr L., Harmat V., Dobo J., Loerincz Z., Gal P., Zavodszky P.; J. Biol. Chem. 282:21100-21109(2007). Cited for: X-RAY CRYSTALLOGRAPHY (2.35 ANGSTROMS) OF 119-500, DISULFIDE BONDS,AND GLYCOSYLATION AT ASN-238. | |
| "Human urinary glycoproteomics; attachment site specific analysis ofN-and O-linked glycosylations by CID and ECD."; Halim A., Nilsson J., Ruetschi U., Hesse C., Larson G.; Mol. Cell. Proteomics 0:0-0(2011). Cited for: GLYCOSYLATION AT ASN-25; THR-47 AND THR-48, STRUCTURE OFCARBOHYDRATES, AND MASS SPECTROMETRY. | |
| "Enrichment of glycopeptides for glycan structure and attachment siteidentification."; Nilsson J., Rueetschi U., Halim A., Hesse C., Carlsohn E.,Brinkmalm G., Larson G.; Nat. Methods 6:809-811(2009). Cited for: GLYCOSYLATION [LARGE SCALE ANALYSIS] AT ASN-352, STRUCTURE OFCARBOHYDRATES, AND MASS SPECTROMETRY. | |
| "Glycoproteomics analysis of human liver tissue by combination ofmultiple enzyme digestion and hydrazide chemistry."; Chen R., Jiang X., Sun D., Han G., Wang F., Ye M., Wang L., Zou H.; J. Proteome Res. 8:651-661(2009). Cited for: GLYCOSYLATION [LARGE SCALE ANALYSIS] AT ASN-69; ASN-81; ASN-238;ASN-253 AND ASN-352, AND MASS SPECTROMETRY. | |
| "Human plasma N-glycoproteome analysis by immunoaffinity subtraction,hydrazide chemistry, and mass spectrometry."; Liu T., Qian W.-J., Gritsenko M.A., Camp D.G. II, Monroe M.E.,Moore R.J., Smith R.D.; J. Proteome Res. 4:2070-2080(2005). Cited for: GLYCOSYLATION [LARGE SCALE ANALYSIS] AT ASN-25; ASN-69; ASN-238;ASN-253 AND ASN-352, AND MASS SPECTROMETRY. | |
| "N-linked glycosylation at Asn3 and the positively charged residueswithin the amino-terminal domain of the c1 inhibitor are required forinteraction of the C1 Inhibitor with Salmonella enterica serovartyphimurium lipopolysaccharide and lipid A."; Liu D., Cramer C.C., Scafidi J., Davis A.E. III; Infect. Immun. 73:4478-4487(2005). Cited for: GLYCOSYLATION AT ASN-25. | |
| "Screening for N-glycosylated proteins by liquid chromatography massspectrometry."; Bunkenborg J., Pilch B.J., Podtelejnikov A.V., Wisniewski J.R.; Proteomics 4:454-465(2004). Cited for: GLYCOSYLATION [LARGE SCALE ANALYSIS] AT ASN-25; ASN-238; ASN-253 ANDASN-352, AND MASS SPECTROMETRY. | |
| "Identification and quantification of N-linked glycoproteins usinghydrazide chemistry, stable isotope labeling and mass spectrometry."; Zhang H., Li X.-J., Martin D.B., Aebersold R.; Nat. Biotechnol. 21:660-666(2003). Cited for: GLYCOSYLATION AT ASN-253. | |
| "Human C1 inhibitor: primary structure, cDNA cloning, and chromosomallocalization."; Bock S.C., Skriver K., Nielsen E., Thoegersen H.-C., Wiman B.,Donaldson V.H., Eddy R.L., Marrinan J., Radziejewska E., Huber R.,Shows T.B., Magnusson S.; Biochemistry 25:4292-4301(1986). Cited for: NUCLEOTIDE SEQUENCE [MRNA], PARTIAL PROTEIN SEQUENCE, ANDGLYCOSYLATION AT ASN-25; THR-48; SER-64; ASN-69; THR-71; ASN-81;THR-83; THR-88; THR-92; THR-96; ASN-238; ASN-253 AND ASN-352. | |
| O-linked Glycosylation | |
| Reference | PubMed |
| "Human urinary glycoproteomics; attachment site specific analysis ofN-and O-linked glycosylations by CID and ECD."; Halim A., Nilsson J., Ruetschi U., Hesse C., Larson G.; Mol. Cell. Proteomics 0:0-0(2011). Cited for: GLYCOSYLATION AT ASN-25; THR-47 AND THR-48, STRUCTURE OFCARBOHYDRATES, AND MASS SPECTROMETRY. | |
| "Human C1 inhibitor: primary structure, cDNA cloning, and chromosomallocalization."; Bock S.C., Skriver K., Nielsen E., Thoegersen H.-C., Wiman B.,Donaldson V.H., Eddy R.L., Marrinan J., Radziejewska E., Huber R.,Shows T.B., Magnusson S.; Biochemistry 25:4292-4301(1986). Cited for: NUCLEOTIDE SEQUENCE [MRNA], PARTIAL PROTEIN SEQUENCE, ANDGLYCOSYLATION AT ASN-25; THR-48; SER-64; ASN-69; THR-71; ASN-81;THR-83; THR-88; THR-92; THR-96; ASN-238; ASN-253 AND ASN-352. | |