NameProtein AMBP
Synonyms
  • HCP
  • ITIL
Gene NameAMBP
OrganismHuman
Amino acid sequence
>lcl|BSEQ0010654|Protein AMBP
MRSLGALLLLLSACLAVSAGPVPTPPDNIQVQENFNISRIYGKWYNLAIGSTCPWLKKIM
DRMTVSTLVLGEGATEAEISMTSTRWRKGVCEETSGAYEKTDTDGKFLYHKSKWNITMES
YVVHTNYDEYAIFLTKKFSRHHGPTITAKLYGRAPQLRETLLQDFRVVAQGVGIPEDSIF
TMADRGECVPGEQEPEPILIPRVRRAVLPQEEEGSGGGQLVTEVTKKEDSCQLGYSAGPC
MGMTSRYFYNGTSMACETFQYGGCMGNGNNFVTEKECLQTCRTVAACNLPIVRGPCRAFI
QLWAFDAVKGKCVLFPYGGCQGNGNKFYSEKECREYCGVPGDGDEELLRFSN
Number of residues352
Molecular Weight38999.215
Theoretical pI6.15
GO Classification
Functions
  • heme binding
  • calcium channel inhibitor activity
  • calcium oxalate binding
  • serine-type endopeptidase inhibitor activity
  • IgA binding
  • small molecule binding
  • protein homodimerization activity
Processes
  • female pregnancy
  • negative regulation of endopeptidase activity
  • viral process
  • protein catabolic process
  • heme catabolic process
  • cell adhesion
  • negative regulation of immune response
  • protein-chromophore linkage
  • negative regulation of JNK cascade
  • receptor-mediated endocytosis
Components
  • intracellular membrane-bounded organelle
  • blood microparticle
  • extracellular region
  • plasma membrane
  • extracellular space
  • cell surface
  • extracellular exosome
General FunctionSmall molecule binding
Specific FunctionInter-alpha-trypsin inhibitor inhibits trypsin, plasmin, and lysosomal granulocytic elastase. Inhibits calcium oxalate crystallization.Trypstatin is a trypsin inhibitor.
Pfam Domain Function
Transmembrane RegionsNot Available
GenBank Protein ID825614
UniProtKB IDP02760
UniProtKB Entry NameAMBP_HUMAN
Cellular LocationSecreted
Gene sequence
>lcl|BSEQ0010655|Protein AMBP (AMBP)
ATGAGGAGCCTCGGGGCCCTGCTCTTGCTGCTGAGCGCCTGCCTGGCGGTGAGCGCTGGC
CCTGTGCCAACGCCGCCCGACAACATCCAAGTGCAGGAAAACTTCAATATCTCTCGGATC
TATGGGAAGTGGTACAACCTGGCCATCGGTTCCACCTGCCCCTGGCTGAAGAAGATCATG
GACAGGATGACAGTGAGCACGCTGGTGCTGGGAGAGGGCGCTACAGAGGCGGAGATCAGC
ATGACCAGCACTCGTTGGCGGAAAGGTGTCTGTGAGGAGACGTCTGGAGCTTATGAGAAA
ACAGATACTGATGGGAAGTTTCTCTATCACAAATCCAAATGGAACATAACCATGGAGTCC
TATGTGGTCCACACCAACTATGATGAGTATGCCATTTTCCTGACCAAGAAATTCAGCCGC
CATCATGGACCCACCATTACTGCCAAGCTCTACGGGCGGGCGCCGCAGCTGAGGGAAACT
CTCCTGCAGGACTTCAGAGTGGTTGCCCAGGGTGTGGGCATCCCTGAGGACTCCATCTTC
ACCATGGCTGACCGAGGTGAATGTGTCCCTGGGGAGCAGGAACCAGAGCCCATCTTAATC
CCGAGAGTCCGGAGGGCTGTGCTACCCCAAGAAGAGGAAGGATCAGGGGGTGGGCAACTG
GTAACTGAAGTCACCAAGAAAGAAGATTCCTGCCAGCTGGGCTACTCGGCCGGTCCCTGC
ATGGGAATGACCAGCAGGTATTTCTATAATGGTACATCCATGGCCTGTGAGACTTTCCAG
TACGGCGGCTGCATGGGCAACGGTAACAACTTCGTCACAGAAAAGGAGTGTCTGCAGACC
TGCCGAACTGTGGCGGCCTGCAATCTCCCCATAGTCCGGGGCCCCTGCCGAGCCTTCATC
CAGCTCTGGGCATTTGATGCTGTCAAGGGGAAGTGCGTCCTCTTCCCCTACGGGGGCTGC
CAGGGCAACGGGAACAAGTTCTACTCAGAGAAGGAGTGCAGAGAGTACTGCGGTGTCCCT
GGTGATGGTGATGAGGAGCTGCTGCGCTTCTCCAACTGA
GenBank Gene IDX54816
GeneCard IDNot Available
GenAtlas IDAMBP
HGNC IDHGNC:453
Chromosome Location9
Locus9q32-q33
References
  1. Traboni C, Cortese R: Sequence of a full length cDNA coding for human protein HC (alpha 1 microglobulin). Nucleic Acids Res. 1986 Aug 11;14(15):6340. 2428011
  2. Kaumeyer JF, Polazzi JO, Kotick MP: The mRNA for a proteinase inhibitor related to the HI-30 domain of inter-alpha-trypsin inhibitor also encodes alpha-1-microglobulin (protein HC). Nucleic Acids Res. 1986 Oct 24;14(20):7839-50. 2430261
  3. Vetr H, Gebhard W: Structure of the human alpha 1-microglobulin-bikunin gene. Biol Chem Hoppe Seyler. 1990 Dec;371(12):1185-96. 1708673
  4. Diarra-Mehrpour M, Bourguignon J, Sesboue R, Salier JP, Leveillard T, Martin JP: Structural analysis of the human inter-alpha-trypsin inhibitor light-chain gene. Eur J Biochem. 1990 Jul 20;191(1):131-9. 1696200
  5. Ota T, Suzuki Y, Nishikawa T, Otsuki T, Sugiyama T, Irie R, Wakamatsu A, Hayashi K, Sato H, Nagai K, Kimura K, Makita H, Sekine M, Obayashi M, Nishi T, Shibahara T, Tanaka T, Ishii S, Yamamoto J, Saito K, Kawai Y, Isono Y, Nakamura Y, Nagahari K, Murakami K, Yasuda T, Iwayanagi T, Wagatsuma M, Shiratori A, Sudo H, Hosoiri T, Kaku Y, Kodaira H, Kondo H, Sugawara M, Takahashi M, Kanda K, Yokoi T, Furuya T, Kikkawa E, Omura Y, Abe K, Kamihara K, Katsuta N, Sato K, Tanikawa M, Yamazaki M, Ninomiya K, Ishibashi T, Yamashita H, Murakawa K, Fujimori K, Tanai H, Kimata M, Watanabe M, Hiraoka S, Chiba Y, Ishida S, Ono Y, Takiguchi S, Watanabe S, Yosida M, Hotuta T, Kusano J, Kanehori K, Takahashi-Fujii A, Hara H, Tanase TO, Nomura Y, Togiya S, Komai F, Hara R, Takeuchi K, Arita M, Imose N, Musashino K, Yuuki H, Oshima A, Sasaki N, Aotsuka S, Yoshikawa Y, Matsunawa H, Ichihara T, Shiohata N, Sano S, Moriya S, Momiyama H, Satoh N, Takami S, Terashima Y, Suzuki O, Nakagawa S, Senoh A, Mizoguchi H, Goto Y, Shimizu F, Wakebe H, Hishigaki H, Watanabe T, Sugiyama A, Takemoto M, Kawakami B, Yamazaki M, Watanabe K, Kumagai A, Itakura S, Fukuzumi Y, Fujimori Y, Komiyama M, Tashiro H, Tanigami A, Fujiwara T, Ono T, Yamada K, Fujii Y, Ozaki K, Hirao M, Ohmori Y, Kawabata A, Hikiji T, Kobatake N, Inagaki H, Ikema Y, Okamoto S, Okitani R, Kawakami T, Noguchi S, Itoh T, Shigeta K, Senba T, Matsumura K, Nakajima Y, Mizuno T, Morinaga M, Sasaki M, Togashi T, Oyama M, Hata H, Watanabe M, Komatsu T, Mizushima-Sugano J, Satoh T, Shirai Y, Takahashi Y, Nakagawa K, Okumura K, Nagase T, Nomura N, Kikuchi H, Masuho Y, Yamashita R, Nakai K, Yada T, Nakamura Y, Ohara O, Isogai T, Sugano S: Complete sequencing and characterization of 21,243 full-length human cDNAs. Nat Genet. 2004 Jan;36(1):40-5. Epub 2003 Dec 21. 14702039
  6. Humphray SJ, Oliver K, Hunt AR, Plumb RW, Loveland JE, Howe KL, Andrews TD, Searle S, Hunt SE, Scott CE, Jones MC, Ainscough R, Almeida JP, Ambrose KD, Ashwell RI, Babbage AK, Babbage S, Bagguley CL, Bailey J, Banerjee R, Barker DJ, Barlow KF, Bates K, Beasley H, Beasley O, Bird CP, Bray-Allen S, Brown AJ, Brown JY, Burford D, Burrill W, Burton J, Carder C, Carter NP, Chapman JC, Chen Y, Clarke G, Clark SY, Clee CM, Clegg S, Collier RE, Corby N, Crosier M, Cummings AT, Davies J, Dhami P, Dunn M, Dutta I, Dyer LW, Earthrowl ME, Faulkner L, Fleming CJ, Frankish A, Frankland JA, French L, Fricker DG, Garner P, Garnett J, Ghori J, Gilbert JG, Glison C, Grafham DV, Gribble S, Griffiths C, Griffiths-Jones S, Grocock R, Guy J, Hall RE, Hammond S, Harley JL, Harrison ES, Hart EA, Heath PD, Henderson CD, Hopkins BL, Howard PJ, Howden PJ, Huckle E, Johnson C, Johnson D, Joy AA, Kay M, Keenan S, Kershaw JK, Kimberley AM, King A, Knights A, Laird GK, Langford C, Lawlor S, Leongamornlert DA, Leversha M, Lloyd C, Lloyd DM, Lovell J, Martin S, Mashreghi-Mohammadi M, Matthews L, McLaren S, McLay KE, McMurray A, Milne S, Nickerson T, Nisbett J, Nordsiek G, Pearce AV, Peck AI, Porter KM, Pandian R, Pelan S, Phillimore B, Povey S, Ramsey Y, Rand V, Scharfe M, Sehra HK, Shownkeen R, Sims SK, Skuce CD, Smith M, Steward CA, Swarbreck D, Sycamore N, Tester J, Thorpe A, Tracey A, Tromans A, Thomas DW, Wall M, Wallis JM, West AP, Whitehead SL, Willey DL, Williams SA, Wilming L, Wray PW, Young L, Ashurst JL, Coulson A, Blocker H, Durbin R, Sulston JE, Hubbard T, Jackson MJ, Bentley DR, Beck S, Rogers J, Dunham I: DNA sequence and analysis of human chromosome 9. Nature. 2004 May 27;429(6990):369-74. 15164053
  7. Gerhard DS, Wagner L, Feingold EA, Shenmen CM, Grouse LH, Schuler G, Klein SL, Old S, Rasooly R, Good P, Guyer M, Peck AM, Derge JG, Lipman D, Collins FS, Jang W, Sherry S, Feolo M, Misquitta L, Lee E, Rotmistrovsky K, Greenhut SF, Schaefer CF, Buetow K, Bonner TI, Haussler D, Kent J, Kiekhaus M, Furey T, Brent M, Prange C, Schreiber K, Shapiro N, Bhat NK, Hopkins RF, Hsie F, Driscoll T, Soares MB, Casavant TL, Scheetz TE, Brown-stein MJ, Usdin TB, Toshiyuki S, Carninci P, Piao Y, Dudekula DB, Ko MS, Kawakami K, Suzuki Y, Sugano S, Gruber CE, Smith MR, Simmons B, Moore T, Waterman R, Johnson SL, Ruan Y, Wei CL, Mathavan S, Gunaratne PH, Wu J, Garcia AM, Hulyk SW, Fuh E, Yuan Y, Sneed A, Kowis C, Hodgson A, Muzny DM, McPherson J, Gibbs RA, Fahey J, Helton E, Ketteman M, Madan A, Rodrigues S, Sanchez A, Whiting M, Madari A, Young AC, Wetherby KD, Granite SJ, Kwong PN, Brinkley CP, Pearson RL, Bouffard GG, Blakesly RW, Green ED, Dickson MC, Rodriguez AC, Grimwood J, Schmutz J, Myers RM, Butterfield YS, Griffith M, Griffith OL, Krzywinski MI, Liao N, Morin R, Palmquist D, Petrescu AS, Skalska U, Smailus DE, Stott JM, Schnerch A, Schein JE, Jones SJ, Holt RA, Baross A, Marra MA, Clifton S, Makowski KA, Bosak S, Malek J: The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). Genome Res. 2004 Oct;14(10B):2121-7. 15489334
  8. Lopez Otin C, Grubb AO, Mendez E: The complete amino acid sequence of human complex-forming glycoprotein heterogeneous in charge (protein HC) from one individual. Arch Biochem Biophys. 1984 Feb 1;228(2):544-54. 6198962
  9. Takagi T, Takagi K, Kawai T: Complete amino acid sequence of human alpha 1-microglobulin. Biochem Biophys Res Commun. 1981 Feb 27;98(4):997-1001. 6164372
  10. Calero M, Escribano J, Grubb A, Mendez E: Location of a novel type of interpolypeptide chain linkage in the human protein HC-IgA complex (HC-IgA) and identification of a heterogeneous chromophore associated with the complex. J Biol Chem. 1994 Jan 7;269(1):384-9. 7506257
  11. Reisinger P, Hochstrasser K, Albrecht GJ, Lempart K, Salier JP: Human inter-alpha-trypsin inhibitor: localization of the Kunitz-type domains in the N-terminal part of the molecule and their release by a trypsin-like proteinase. Biol Chem Hoppe Seyler. 1985 May;366(5):479-83. 2408638
  12. Chawla RK, Lawson DH, Ahmad M, Travis J: Cancer-related urinary proteinase inhibitor, EDC1: a new method for its isolation and evidence for multiple forms. J Cell Biochem. 1992 Nov;50(3):227-36. 1469060
  13. Enghild JJ, Salvesen G, Hefta SA, Thogersen IB, Rutherfurd S, Pizzo SV: Chondroitin 4-sulfate covalently cross-links the chains of the human blood protein pre-alpha-inhibitor. J Biol Chem. 1991 Jan 15;266(2):747-51. 1898736
  14. Enghild JJ, Salvesen G, Thogersen IB, Valnickova Z, Pizzo SV, Hefta SA: Presence of the protein-glycosaminoglycan-protein covalent cross-link in the inter-alpha-inhibitor-related proteinase inhibitor heavy chain 2/bikunin. J Biol Chem. 1993 Apr 25;268(12):8711-6. 7682553
  15. Atmani F, Khan SR: Characterization of uronic-acid-rich inhibitor of calcium oxalate crystallization isolated from rat urine. Urol Res. 1995;23(2):95-101. 7676539
  16. Morelle W, Capon C, Balduyck M, Sautiere P, Kouach M, Michalski C, Fournet B, Mizon J: Chondroitin sulphate covalently cross-links the three polypeptide chains of inter-alpha-trypsin inhibitor. Eur J Biochem. 1994 Apr 15;221(2):881-8. 7513643
  17. Hochstrasser K, Schonberger OL, Rossmanith I, Wachter E: Kunitz-type proteinase inhibitors derived by limited proteolysis of the inter-alpha-trypsin inhibitor, V. Attachments of carbohydrates in the human urinary trypsin inhibitor isolated by affinity chromatography. Hoppe Seylers Z Physiol Chem. 1981 Oct;362(10):1357-62. 6171497
  18. Morii M, Travis J: The reactive site of human inter-alpha-trypsin inhibitor is in the amino-terminal half of the protein. Biol Chem Hoppe Seyler. 1985 Jan;366(1):19-21. 3890890
  19. Escribano J, Lopex-Otin C, Hjerpe A, Grubb A, Mendez E: Location and characterization of the three carbohydrate prosthetic groups of human protein HC. FEBS Lett. 1990 Jun 18;266(1-2):167-70. 1694784
  20. Escribano J, Grubb A, Calero M, Mendez E: The protein HC chromophore is linked to the cysteine residue at position 34 of the polypeptide chain by a reduction-resistant bond and causes the charge heterogeneity of protein HC. J Biol Chem. 1991 Aug 25;266(24):15758-63. 1714898
  21. Berggard T, Cohen A, Persson P, Lindqvist A, Cedervall T, Silow M, Thogersen IB, Jonsson JA, Enghild JJ, Akerstrom B: Alpha1-microglobulin chromophores are located to three lysine residues semiburied in the lipocalin pocket and associated with a novel lipophilic compound. Protein Sci. 1999 Dec;8(12):2611-20. 10631976
  22. Sala A, Campagnoli M, Perani E, Romano A, Labo S, Monzani E, Minchiotti L, Galliano M: Human alpha-1-microglobulin is covalently bound to kynurenine-derived chromophores. J Biol Chem. 2004 Dec 3;279(49):51033-41. Epub 2004 Sep 27. 15452109
  23. Tyagi S, Surjit M, Roy AK, Jameel S, Lal SK: The ORF3 protein of hepatitis E virus interacts with liver-specific alpha1-microglobulin and its precursor alpha1-microglobulin/bikunin precursor (AMBP) and expedites their export from the hepatocyte. J Biol Chem. 2004 Jul 9;279(28):29308-19. Epub 2004 Mar 22. 15037615
  24. Tyagi S, Surjit M, Lal SK: The 41-amino-acid C-terminal region of the hepatitis E virus ORF3 protein interacts with bikunin, a kunitz-type serine protease inhibitor. J Virol. 2005 Sep;79(18):12081-7. 16140784
  25. Halim A, Nilsson J, Ruetschi U, Hesse C, Larson G: Human urinary glycoproteomics; attachment site specific analysis of N- and O-linked glycosylations by CID and ECD. Mol Cell Proteomics. 2012 Apr;11(4):M111.013649. doi: 10.1074/mcp.M111.013649. Epub 2011 Dec 14. 22171320
  26. Bian Y, Song C, Cheng K, Dong M, Wang F, Huang J, Sun D, Wang L, Ye M, Zou H: An enzyme assisted RP-RPLC approach for in-depth analysis of human liver phosphoproteome. J Proteomics. 2014 Jan 16;96:253-62. doi: 10.1016/j.jprot.2013.11.014. Epub 2013 Nov 22. 24275569
  27. Xu Y, Carr PD, Guss JM, Ollis DL: The crystal structure of bikunin from the inter-alpha-inhibitor complex: a serine protease inhibitor with two Kunitz domains. J Mol Biol. 1998 Mar 13;276(5):955-66. 9566199
  28. Akerstrom B, Logdberg L, Berggard T, Osmark P, Lindqvist A: alpha(1)-Microglobulin: a yellow-brown lipocalin. Biochim Biophys Acta. 2000 Oct 18;1482(1-2):172-84. 11058759