General Information

  • ID:  hor005763
  • Uniprot ID:  P01042
  • Protein name:  Low molecular weight growth-promoting factor
  • Gene name:  KNG1
  • Organism:  Homo sapiens (Human)
  • Family:  NA
  • Source:  Human
  • Expression:  Secreted in plasma. T-kinin is detected in malignant ovarian, colon and breast carcinomas, but not in benign tumors.
  • Disease:  Diseases associated with KNG1 include High Molecular Weight Kininogen Deficiency and Angioedema, Hereditary, 6.
  • Comments:  NA
  • Taxonomy:  Homo (genus), Homininae (subfamily), Hominidae (family), Hominoidea (superfamily), Catarrhini (parvorder), Simiiformes (infraorder), Haplorrhini (suborder), Primates (order), Euarchontoglires (superorder), Boreoeutheria, Eutheria, Theria, Mammalia (class), Amniota, Tetrapoda, Dipnotetrapodomorpha, Sarcopterygii (superclass), Euteleostomi, Teleostomi, Gnathostomata, Vertebrata, Craniata (subphylum), Chordata (phylum), Deuterostomia, Bilateria, Eumetazoa, Metazoa (kingdom), Opisthokonta, Eukaryota (superkingdom), cellular organisms
  • GO MF:  GO:0004869 cysteine-type endopeptidase inhibitor activity; GO:0005102 signaling receptor binding; GO:0005179 hormone activity; GO:0005515 protein binding; GO:0008201 heparin binding; GO:0008270 zinc ion binding; GO:0030414 peptidase inhibitor activity
  • GO BP:  GO:0006954 inflammatory response; GO:0007162 negative regulation of cell adhesion; GO:0007165 signal transduction; GO:0007204 positive regulation of cytosolic calcium ion concentration; GO:0007596 blood coagulation; GO:0007599 hemostasis; GO:0030195 negative regulation of blood coagulation; GO:0042311 vasodilation
  • GO CC:  NA

Sequence Information

  • Sequence:  WGHE
  • Length:  4
  • Propeptide:  MKLITILFLCSRLLLSLTQESQSEEIDCNDKDLFKAVDAALKKYNSQNQSNNQFVLYRITEATKTVGSDTFYSFKYEIKEGDCPVQSGKTWQDCEYKDAAKAATGECTATVGKRSSTKFSVATQTCQITPAEGPVVTAQYDCLGCVHPISTQSPDLEPILRHGIQYFNNNTQHSSLFMLNEVKRAQRQVVAGLNFRITYSIVQTNCSKENFLFLTPDCKSLWNGDTGECTDNAYIDIQLRIASFSQNCDIYPGKDFVQPPTKICVGCPRDIPTNSPELEETLTHTITKLNAENNATFYFKIDNVKKARVQVVAGKKYFIDFVARETTCSKESNEELTESCETKKLGQSLDCNAEVYVVPWEKKIYPTVNCQPLGMISLMKRPPGFSPFRSSRIGEIKEETTVSPPHTSMAPAQDEERDSGKEQGHTRRHDWGHEKQRKHNLGHGHKHERDQGHGHQRGHGLGHGHEQQHGLGHGHKFKLDDDLEHQGGHVLDHGHKHKHGHGHGKHKNKGKKNGKHNGWKTEHLASSSEDSTTPSAQTQEKTEGPTPIPSLAKPGVTVTFSDFQDSDLIATMMPPISPAPIQSDDDWIPDIQIDPNGLSFNPISDFPDTTSPKCPGRPWKSVSEINPTTQMKESYYFDLTDGLS
  • Signal peptide:  MKLITILFLCSRLLLSLT
  • Modification:  NA
  • Glycosylation:  NA
  • Mutagenesis:  NA

Activity

  • Function:  Kininogens are inhibitors of thiol proteases. HMW-kininogen plays an important role in blood coagulation by helping to position optimally prekallikrein and factor XI next to factor XII; HMW-kininogen inhibits the thrombin- and plasmin-induced aggregation of thrombocytes. LMW-kininogen inhibits the aggregation of thrombocytes. LMW-kininogen is in contrast to HMW-kininogen not involved in blood clotting.; [Bradykinin]: The active peptide bradykinin is a potent vasodilatator that is released from HMW-kininogen shows a variety of physiological effects: (A) influence in smooth muscle contraction, (B) induction of hypotension, (C) natriuresis and diuresis, (D) decrease in blood glucose level, (E) it is a mediator of inflammation and causes (E1) increase in vascular permeability, (E2) stimulation of nociceptors (4E3) release of other mediators of inflammation (e.g. prostaglandins), (F) it has a cardioprotective effect (directly via bradykinin action, indirectly via endothelium-derived relaxing factor action).
  • Mechanism:  NA
  • Cross BBB:  NA
  • Target:  BDKRB2
  • Target Unid:  P30411
  • IC50: NA
  • EC50: NA
  • ED50: NA
  • kd: NA
  • Half life: NA

Structure

  • Disulfide bond:  NA
  • Structure ID:  AF-P01042-F1(AlphaFold_DB_ID)
  • Structure: (PDB_ID-from https://www.rcsb.org/; AlphaFold_DB_ID-from https://alphafold.ebi.ac.uk/; hordbxxxxxx_AF2.pdb was predicted structure by AlphaFold2; hordbxxxxxx_ESM.pdb was predicted structure by ESMFold)
  •    hor005763_AF2.pdbhor005763_ESM.pdb

Physical Information

Mass: 58123 Formula: C24H29N7O7
Absent amino acids: ACDFIKLMNPQRSTVY Common amino acids: EGHW
pI: 5.36 Basic residues: 1
Polar residues: 1 Hydrophobic residues: 1
Hydrophobicity: -200 Boman Index: -820
Half-Life: 2.8 hour Half-Life Yeast: 3 min
Half-Life E.Coli: 2 min Aliphatic Index 0
Instability Index: -1842.5 Extinction Coefficient cystines: 5500
Absorbance 280nm: 1833.33

Literature

  • PubMed ID:  6441591
  • Title:  Isolation of a human cDNA for alpha 2-thiol proteinase inhibitor and its identity with low molecular weight kininogen.
  • PubMed ID:  2989293
  • Title:  Cloning and sequence analysis of cDNAs for human high molecular weight and low molecular weight prekininogens. Primary structures of two human prekininogens.
  • PubMed ID:  14702039
  • Title:  Complete sequencing and characterization of 21,243 full-length human cDNAs.
  • PubMed ID:  16641997
  • Title:  The DNA sequence, annotation and analysis of human chromosome 3.
  • PubMed ID:  15489334
  • Title:  The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).
  • PubMed ID:  3484703
  • Title:  Completion of the primary structure of human high-molecular-mass kininogen. The amino acid sequence of the entire heavy chain and evidence for its evolution by gene triplication.
  • PubMed ID:  3828072
  • Title:  Human Ile-Ser-bradykinin, identical with rat T-kinin, is a major permeability factor in ovarian carcinoma ascites.
  • PubMed ID:  2076202
  • Title:  Ile-Ser-bradykinin is an aberrant permeability factor in various human malignant effusions.
  • PubMed ID:  4054110
  • Title:  The amino acid sequence of the light chain of human high-molecular-mass kininogen.
  • PubMed ID:  3366244
  • Title:  Isolation and identification of hydroxyproline analogues of bradykinin in human urine.
  • PubMed ID:  4952632
  • Title:  Structural features of plasma kinins and kininogens.
  • PubMed ID:  7589467
  • Title:  Purification from human plasma of a tetrapeptide that potentiates insulin-like growth factor-I activity in chick embryo cartilage.
  • PubMed ID:  6055465
  • Title:  Second kininase in human blood plasma.
  • PubMed ID:  4322742
  • Title:  A dipeptidyl carboxypeptidase that converts angiotensin I and inactivates bradykinin.
  • PubMed ID:  2989294
  • Title:  Structural organization of the human kininogen gene and a model for its evolution.
  • PubMed ID:  3182782
  • Title:  Purification and identification of [hydroxyprolyl3]bradykinin in ascitic fluid from a patient with gastric cancer.
  • PubMed ID:  8760820
  • Title:  Streptococcal cysteine proteinase releases kinins: a virulence mechanism.
  • PubMed ID:  12754519
  • Title:  Identification and quantification of N-linked glycoproteins using hydrazide chemistry, stable isotope labeling and mass spectrometry.
  • PubMed ID:  14760718
  • Title:  Screening for N-glycosylated proteins by liquid chromatography mass spectrometry.
  • PubMed ID:  16335952
  • Title:  Human plasma N-glycoproteome analysis by immunoaffinity subtraction, hydrazide chemistry, and mass spectrometry.
  • PubMed ID:  19824718
  • Title:  An initial characterization of the serum phosphoproteome.
  • PubMed ID:  19159218
  • Title:  Glycoproteomics analysis of human liver tissue by combination of multiple enzyme digestion and hydrazide chemistry.
  • PubMed ID:  19139490
  • Title:  A strategy for precise and large scale identification of core fucosylated glycoproteins.
  • PubMed ID:  19838169
  • Title:  Enrichment of glycopeptides for glycan structure and attachment site identification.
  • PubMed ID:  24275569
  • Title:  An enzyme assisted RP-RPLC approach for in-depth analysis of human liver phosphoproteome.
  • PubMed ID:  26091039
  • Title:  A Single Kinase Generates the Majority of the Secreted Phosphoproteome.
  • PubMed ID:  31087670#
  • Title:  Hereditary angioedema