Hmdb loader
Identification
HMDB Protein ID HMDBP13735
Secondary Accession Numbers None
Name Lactotransferrin
Synonyms
  1. Lactoferrin
  2. Draculin
  3. Draculin-1
Gene Name LTF
Protein Type Unknown
Biological Properties
General Function Not Available
Specific Function Transferrins are iron binding transport proteins which can bind two Fe(3+) ions in association with the binding of an anion, usually bicarbonate.Major iron-binding and multifunctional protein found in exocrine fluids such as breast milk and mucosal secretions. Has antimicrobial activity. Antimicrobial properties may include bacteriostasis, which is related to its ability to sequester free iron and thus inhibit microbial growth, as well as direct bactericidal properties leading to the release of lipopolysaccharides from the bacterial outer membrane. May have anabolic, differentiating and anti-apoptotic effects on osteoblasts and may also inhibit osteoclastogenesis, possibly playing a role in the regulation of bone growth. May interfere with the lipopolysaccharide (LPS)-stimulated TLR4 signaling.The lactotransferrin transferrin-like domain 1 functions as a serine protease of the peptidase S60 family that cuts arginine rich regions. This function contributes to the antimicrobial activity. Shows a preferential cleavage at -Arg-Ser-Arg-Arg-|- and -Arg-Arg-Ser-Arg-|-, and of Z-Phe-Arg-|-aminomethylcoumarin sites.Acts as an anticoagulant of the blood coagulation cascade of the bat's prey by inhibiting coagulation factor IX and activated coagulation factor X.
Pathways Not Available
Reactions Not Available
GO Classification
Biological Process
ion transport
defense response to bacterium
iron ion homeostasis
ossification
negative regulation of blood coagulation
Cellular Component
extracellular space
Molecular Function
metal ion binding
toxin activity
serine-type peptidase activity
Cellular Location Not Available
Gene Properties
Chromosome Location Not Available
Locus Not Available
SNPs Not Available
Gene Sequence Not Available
Protein Properties
Number of Residues Not Available
Molecular Weight 76855.665
Theoretical pI Not Available
Pfam Domain Function
Signals
  • 1-19;
Transmembrane Regions Not Available
Protein Sequence Not Available
GenBank ID Protein Not Available
UniProtKB/Swiss-Prot ID K9IMD0
UniProtKB/Swiss-Prot Entry Name TRLF_DESRO
PDB IDs Not Available
GenBank Gene ID Not Available
GeneCard ID Not Available
GenAtlas ID Not Available
HGNC ID Not Available
References
General References
  1. Francischetti IM, Assumpcao TC, Ma D, Li Y, Vicente EC, Uieda W, Ribeiro JM: The "Vampirome": Transcriptome and proteome analysis of the principal and accessory submaxillary glands of the vampire bat Desmodus rotundus, a vector of human rabies. J Proteomics. 2013 Apr 26;82:288-319. doi: 10.1016/j.jprot.2013.01.009. Epub 2013 Feb 11. [PubMed:23411029 ]
  2. Low DH, Sunagar K, Undheim EA, Ali SA, Alagon AC, Ruder T, Jackson TN, Pineda Gonzalez S, King GF, Jones A, Antunes A, Fry BG: Dracula's children: molecular evolution of vampire bat venom. J Proteomics. 2013 Aug 26;89:95-111. doi: 10.1016/j.jprot.2013.05.034. Epub 2013 Jun 5. [PubMed:23748026 ]
  3. Apitz-Castro R, Beguin S, Tablante A, Bartoli F, Holt JC, Hemker HC: Purification and partial characterization of draculin, the anticoagulant factor present in the saliva of vampire bats (Desmodus rotundus). Thromb Haemost. 1995 Jan;73(1):94-100. [PubMed:7740503 ]
  4. Fernandez AZ, Tablante A, Bartoli F, Beguin S, Hemker HC, Apitz-Castro R: Expression of biological activity of draculin, the anticoagulant factor from vampire bat saliva, is strictly dependent on the appropriate glycosylation of the native molecule. Biochim Biophys Acta. 1998 Oct 23;1425(2):291-9. doi: 10.1016/s0304-4165(98)00082-8. [PubMed:9795244 ]