Reviewed,
UniProtKB/Swiss-Prot Q60997 (DMBT1_MOUSE)
Last modified
July 7, 2009.
Version 72.
History...
Clusters with 100%,
90%,
50% identity |
Documents (2) |
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Names and origin
| Protein names | Recommended name: Deleted in malignant brain tumors 1 protein Alternative name(s): CRP-ductin Vomeroglandin Hensin Mucin-like glycoprotein Short name=Muclin Glycoprotein 300 Short name=gp300 Apactin p80 | ||||
| Gene names |
| ||||
| Organism | Mus musculus (Mouse) | ||||
| Taxonomic identifier | 10090 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Mus |
Protein attributes
| Sequence length | 2085 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is further processed into a mature form. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Function | May play roles in mucosal defense system and cellular immune defense. May play a role in liver regeneration. May be an important factor in fate decision and differentiation of transit-amplifying ductular (oval) cells within the hepatic lineage. May function as a binding protein in saliva for the regulation of taste sensation. May play a role as an opsonin receptor for SFTPD and SPAR in macrophage tissues throughout the body, including epithelial cells lining the gastrointestinal tract By similarity. Required for terminal differentiation of columnar epithelial cells during early embryogenesis. Displays a broad calcium-dependent binding spectrum against both Gram-positive and Gram-negative bacteria, suggesting a role in defense against bacterial pathogens. Binds to a range of poly-sulfated and poly-phosphorylated ligands which may explain its broad bacterial-binding specificity. Inhibits cytoinvasion of S.enterica. Associates with the actin cytoskeleton and is involved in its remodeling during regulated exocytosis. Interacts with pancreatic zymogens in a pH-dependent manner and may act as a Golgi cargo receptor in the regulated secretory pathway of the pancreatic acinar cell. |
| Subunit structure | Interacts with LGALS3. Binds SPAR in a calcium-dependent manner By similarity. Binds SFTPD in a calcium-dependent manner. |
| Subcellular location | Secreted. Cytoplasmic vesicle › secretory vesicle membrane; Peripheral membrane protein; Lumenal side. Note: Localized to the lumenal aspect of crypt cells in the small intestine. In the colon, seen in the lumenal aspect of surface epithelial cells. Formed in the ducts of von Ebner gland and released into the fluid bathing the taste buds contained in the taste papillae. In the CFTR knockout mouse, enhanced on the acinar luminar surface. |
| Tissue specificity | Strongly expressed in acini and duct epithelial cells of the exocrine pancreas but not in the islets of Langerhans. Expressed in gall bladder, salivary glands and in the epithelium lining larger hepatic ducts, but not in the liver parenchyma, stomach or lung. Expressed along the intestinal tract including duodenum, jejunum, ileum and colon (at protein level). Expressed in glands associated with vomeronasal tissues. Expressed in the vomeronasal gland and posterior gland of nasal septum. Weakly expressed in lateral nasal gland. CFTR knockout mice show increased expression in pancreas, duodenum and small intestine but not in gall bladder. In pancreas and small intestine, increased expression occurs after the appearance of dilated lumina. |
| Developmental stage | Present in the E3.5 blastocyst. Levels increase to a maximum between E18.5 and birth and decrease gradually between birth and adulthood with the greatest decreases occurring between neonate and P1 and between P9 and P16 (at protein level). Expressed in the primitive endoderm at E4.5. At E9.5, expressed in midbrain, notochord, liver primordium, midgut and hindgut. |
| Domain | The SRCR domains mediate binding to bacteria By similarity. |
| Post-translational modification | Highly N- and O-glycosylated. The O-glycans are heavily sulfated. O-glycosylation and sulfation in pancreatic acinar cells are required for zymogen granule maturation. Glycoconjugate composition changes during development with fucose only acquired post-natally during weaning. |
| Disruption phenotype | Variable phenotypes have been reported. In some studies mice display normal development and viability with impaired exocrine pancreatic function and no development of gastrointestinal tumors (Ref.16 and Ref.17). In other studies mice die between E4.5 and E5.5 due to defects in the differentiation of the primitive endoderm layer (Ref.14). |
| Sequence similarities | Belongs to the DMBT1 family. Contains 5 CUB domains. Contains 8 SRCR domains. Contains 1 ZP domain. |
| Sequence caution | The sequence AAC52505.1 differs from that shown. Reason: Frameshift at positions 227, 233, 236 and 240. |
Ontologies
Alternative products
| This entry describes 4 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q60997-1) Also known as: CPR-ductin alpha; This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 2 (identifier: Q60997-2) Also known as: CPR-ductin beta; The sequence of this isoform differs from the canonical sequence as follows: 2032-2085: Missing. | ||||||
| Isoform 3 (identifier: Q60997-3) The sequence of this isoform differs from the canonical sequence as follows: 29-29: D → DEVSYTAEQSTE 397-534: Missing. | ||||||
| Isoform 4 (identifier: Q60997-4) The sequence of this isoform differs from the canonical sequence as follows: 397-534: Missing. | ||||||
| Note: No experimental confirmation available. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||||
Molecule processing | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Signal peptide | 1 – 19 | 19 | Potential | ||||||||
| Chain | 20 – 2085 | 2066 | Deleted in malignant brain tumors 1 protein | PRO_0000045388 | |||||||
Regions | |||||||||||
| Transmembrane | 2050 – 2070 | 21 | Potential | ||||||||
| Domain | 37 – 137 | 101 | SRCR 1 | ||||||||
| Domain | 186 – 286 | 101 | SRCR 2 | ||||||||
| Domain | 324 – 424 | 101 | SRCR 3 | ||||||||
| Domain | 463 – 563 | 101 | SRCR 4 | ||||||||
| Domain | 602 – 702 | 101 | SRCR 5 | ||||||||
| Domain | 741 – 841 | 101 | SRCR 6 | ||||||||
| Domain | 880 – 980 | 101 | SRCR 7 | ||||||||
| Domain | 1023 – 1132 | 110 | CUB 1 | ||||||||
| Domain | 1139 – 1248 | 110 | CUB 2 | ||||||||
| Domain | 1265 – 1374 | 110 | CUB 3 | ||||||||
| Domain | 1381 – 1490 | 110 | CUB 4 | ||||||||
| Domain | 1510 – 1610 | 101 | SRCR 8 | ||||||||
| Domain | 1633 – 1742 | 110 | CUB 5 | ||||||||
| Domain | 1751 – 1999 | 249 | ZP | ||||||||
| Compositional bias | 987 – 1018 | 32 | Thr-rich | ||||||||
Amino acid modifications | |||||||||||
| Modified residue | 2073 | 1 | Phosphothreonine | ||||||||
| Modified residue | 2082 | 1 | Phosphoserine | ||||||||
| Glycosylation | 1088 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1100 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1136 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1204 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1216 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1330 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1342 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1378 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1446 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1458 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1500 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1504 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1514 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1630 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1745 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1746 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1782 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1813 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1817 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1858 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1874 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Disulfide bond | 62 ↔ 126 | By similarity | |||||||||
| Disulfide bond | 75 ↔ 136 | By similarity | |||||||||
| Disulfide bond | 106 ↔ 116 | By similarity | |||||||||
| Disulfide bond | 211 ↔ 275 | By similarity | |||||||||
| Disulfide bond | 224 ↔ 285 | By similarity | |||||||||
| Disulfide bond | 255 ↔ 265 | By similarity | |||||||||
| Disulfide bond | 349 ↔ 413 | By similarity | |||||||||
| Disulfide bond | 362 ↔ 423 | By similarity | |||||||||
| Disulfide bond | 393 ↔ 403 | By similarity | |||||||||
| Disulfide bond | 488 ↔ 552 | By similarity | |||||||||
| Disulfide bond | 501 ↔ 562 | By similarity | |||||||||
| Disulfide bond | 532 ↔ 542 | By similarity | |||||||||
| Disulfide bond | 627 ↔ 691 | By similarity | |||||||||
| Disulfide bond | 640 ↔ 701 | By similarity | |||||||||
| Disulfide bond | 671 ↔ 681 | By similarity | |||||||||
| Disulfide bond | 766 ↔ 830 | By similarity | |||||||||
| Disulfide bond | 779 ↔ 840 | By similarity | |||||||||
| Disulfide bond | 810 ↔ 820 | By similarity | |||||||||
| Disulfide bond | 905 ↔ 969 | By similarity | |||||||||
| Disulfide bond | 918 ↔ 979 | By similarity | |||||||||
| Disulfide bond | 949 ↔ 959 | By similarity | |||||||||
| Disulfide bond | 1023 ↔ 1049 | By similarity | |||||||||
| Disulfide bond | 1074 ↔ 1096 | By similarity | |||||||||
| Disulfide bond | 1139 ↔ 1165 | By similarity | |||||||||
| Disulfide bond | 1190 ↔ 1212 | By similarity | |||||||||
| Disulfide bond | 1265 ↔ 1291 | By similarity | |||||||||
| Disulfide bond | 1316 ↔ 1338 | By similarity | |||||||||
| Disulfide bond | 1381 ↔ 1407 | By similarity | |||||||||
| Disulfide bond | 1432 ↔ 1454 | By similarity | |||||||||
| Disulfide bond | 1535 ↔ 1599 | By similarity | |||||||||
| Disulfide bond | 1548 ↔ 1609 | By similarity | |||||||||
| Disulfide bond | 1579 ↔ 1589 | By similarity | |||||||||
| Disulfide bond | 1633 ↔ 1659 | By similarity | |||||||||
| Disulfide bond | 1684 ↔ 1706 | By similarity | |||||||||
Natural variations | |||||||||||
| Alternative sequence | 29 | 1 | D → DEVSYTAEQSTE in isoform 3. | VSP_016851 | |||||||
| Alternative sequence | 397 – 534 | 138 | Missing in isoform 3 and isoform 4. | VSP_016852 | |||||||
| Alternative sequence | 2032 – 2085 | 54 | Missing in isoform 2. | VSP_016853 | |||||||
Experimental info | |||||||||||
| Mutagenesis | 2073 | 1 | T → A: Abolishes phosphorylation. | ||||||||
| Mutagenesis | 2082 | 1 | S → A: Abolishes phosphorylation. | ||||||||
| Sequence conflict | 247 – 248 | 2 | PI → L in AAC52505. Ref.1 | ||||||||
| Sequence conflict | 1494 – 1497 | 4 | PPSF → SLH in AAC52505. Ref.1 | ||||||||
| Sequence conflict | 2061 | 1 | V → G in BAA92266. Ref.2 | ||||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "CRP-ductin: a gene expressed in intestinal crypts and in pancreatic and hepatic ducts." Cheng H., Bjerknes M., Chen H. Anat. Rec. 244:327-343(1996) [PubMed: 8742698] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1 AND 2), FUNCTION IN EPITHELIAL DIFFERENTIATION, ALTERNATIVE SPLICING, TISSUE SPECIFICITY, SUBCELLULAR LOCATION. Strain: BALB/c. Tissue: Jejunal epithelium. |
| [2] | "Vomeroglandin/CRP-ductin is strongly expressed in the glands associated with the mouse vomeronasal organ: identification and characterization of mouse vomeroglandin." Matsushita F., Miyawaki A., Mikoshiba K. Biochem. Biophys. Res. Commun. 268:275-281(2000) [PubMed: 10679193] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 3), PROTEIN SEQUENCE OF 22-40 AND 1942-1957, TISSUE SPECIFICITY. Strain: ddY. |
| [3] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed: 15489334] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 4). Strain: FVB/N. Tissue: Colon. |
| [4] | "Characterization of the major sulfated protein of mouse pancreatic acinar cells: a high molecular weight peripheral membrane glycoprotein of zymogen granules." De Lisle R.C. J. Cell. Biochem. 56:385-396(1994) [PubMed: 7876332] [Abstract] Cited for: SUBCELLULAR LOCATION, GLYCOSYLATION. |
| [5] | "Increased expression of sulfated gp300 and acinar tissue pathology in pancreas of CFTR(-/-) mice." De Lisle R.C. Am. J. Physiol. 268:G717-G723(1995) [PubMed: 7537458] [Abstract] Cited for: TISSUE SPECIFICITY. |
| [6] | "Expression of sulfated gp300 and changes in glycosylation during pancreatic development." De Lisle R.C., Isom K.S. J. Histochem. Cytochem. 44:57-66(1996) [PubMed: 8543783] [Abstract] Cited for: DEVELOPMENTAL STAGE, GLYCOSYLATION. |
| [7] | "Muclin expression in the cystic fibrosis transmembrane conductance regulator knockout mouse." De Lisle R.C., Petitt M., Huff J., Isom K.S., Agbas A. Gastroenterology 113:521-532(1997) [PubMed: 9247472] [Abstract] Cited for: SUBCELLULAR LOCATION, TISSUE SPECIFICITY. |
| [8] | "Developmental expression of a mucinlike glycoprotein (MUCLIN) in pancreas and small intestine of CF mice." De Lisle R.C., Petitt M., Isom K.S., Ziemer D. Am. J. Physiol. 275:G219-G227(1998) [PubMed: 9688648] [Abstract] Cited for: TISSUE SPECIFICITY. |
| [9] | "Processing of pro-muclin and divergent trafficking of its products to zymogen granules and the apical plasma membrane of pancreatic acinar cells." De Lisle R.C., Ziemer D. Eur. J. Cell Biol. 79:892-904(2000) [PubMed: 11152281] [Abstract] Cited for: FUNCTION, SUBCELLULAR LOCATION. |
| [10] | "Role of sulfated O-linked glycoproteins in zymogen granule formation." De Lisle R.C. J. Cell Sci. 115:2941-2952(2002) [PubMed: 12082154] [Abstract] Cited for: FUNCTION. |
| [11] | "CRP-ductin, the mouse homologue of gp-340/deleted in malignant brain tumors 1 (DMBT1), binds gram-positive and gram-negative bacteria and interacts with lung surfactant protein D." Madsen J., Tornoee I., Nielsen O., Lausen M., Krebs I., Mollenhauer J., Kollender G., Poustka A., Skjodt K., Holmskov U. Eur. J. Immunol. 33:2327-2336(2003) [PubMed: 12884308] [Abstract] Cited for: FUNCTION, INTERACTION WITH SFTPD, TISSUE SPECIFICITY. |
| [12] | "Apactin is involved in remodeling of the actin cytoskeleton during regulated exocytosis." Tandon C., De Lisle R.C. Eur. J. Cell Biol. 83:79-89(2004) [PubMed: 15146979] [Abstract] Cited for: FUNCTION, PHOSPHORYLATION AT THR-2073 AND SER-2082, MUTAGENESIS OF THR-2073 AND SER-2082. |
| [13] | "Binding of the Golgi sorting receptor muclin to pancreatic zymogens through sulfated O-linked oligosaccharides." Boulatnikov I., De Lisle R.C. J. Biol. Chem. 279:40918-40926(2004) [PubMed: 15292166] [Abstract] Cited for: FUNCTION. |
| [14] | "Conversion of ES cells to columnar epithelia by hensin and to squamous epithelia by laminin." Takito J., Al-Awqati Q. J. Cell Biol. 166:1093-1102(2004) [PubMed: 15452149] [Abstract] Cited for: DISRUPTION PHENOTYPE, FUNCTION, DEVELOPMENTAL STAGE. |
| [15] | "Expression of pro-muclin in pancreatic AR42J cells induces functional regulated secretory granules." De Lisle R.C., Norkina O., Roach E., Ziemer D. Am. J. Physiol. 289:C1169-C1178(2005) [PubMed: 15987769] [Abstract] Cited for: FUNCTION. |
| [16] | "DMBT1 confers mucosal protection in vivo and a deletion variant is associated with Crohn's disease." Renner M., Bergmann G., Krebs I., End C., Lyer S., Hilberg F., Helmke B., Gassler N., Autschbach F., Bikker F., Strobel-Freidekind O., Gronert-Sum S., Benner A., Blaich S., Wittig R., Hudler M., Ligtenberg A.J., Madsen J. Mollenhauer J.Gastroenterology 133:1499-1509(2007) [PubMed: 17983803] [Abstract] Cited for: DISRUPTION PHENOTYPE. |
| [17] | "Effects of muclin (Dmbt1) deficiency on the gastrointestinal system." De Lisle R.C., Xu W., Roe B.A., Ziemer D. Am. J. Physiol. 294:G717-G727(2008) [PubMed: 18202109] [Abstract] Cited for: DISRUPTION PHENOTYPE. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| U37438 mRNA. Translation: AAC52505.1. Frameshift. AB005909 mRNA. Translation: BAA92266.1. BC049835 mRNA. Translation: AAH49835.1. | |
| IPI | IPI00311384. IPI00662070. IPI00675302. IPI00678471. |
| PIR | T42721. |
| RefSeq | NP_031795.2. |
| UniGene | Mm.4138 |
3D structure databases | |
| HSSP | HSSP built from PDB template 1BY2 based on UniProtKB Q08380. |
| ModBase | Search... |
PTM databases | |
| PhosphoSite | Q60997. |
Proteomic databases | |
| PRIDE | Q60997. |
Genome annotation databases | |
| Ensembl | ENSMUSG00000047517. Mus musculus. [Contig view] |
| GeneID | 12945. |
| KEGG | mmu:12945. |
Organism-specific databases | |
| MGI | MGI:106210. Dmbt1. |
Phylogenomic databases | |
| HOGENOM | Q60997. |
| HOVERGEN | Q60997. |
Gene expression databases | |
| ArrayExpress | Q60997. |
| Bgee | Q60997. |
| CleanEx | MM_DMBT1. |
| GermOnline | ENSMUSG00000047517. Mus musculus. |
Family and domain databases | |
| InterPro | IPR000859. CUB. IPR001507. Endoglin/CD105. IPR017977. Endoglin/CD105_CS. IPR001190. Srcr_rcpt. IPR017448. Srcr_rcpt-rel. [Graphical view] |
| Gene3D | G3DSA:2.60.120.290. CUB. 5 hits. |
| Pfam | PF00431. CUB. 5 hits. PF00530. SRCR. 8 hits. PF00100. Zona_pellucida. 1 hit. [Graphical view] |
| SMART | SM00042. CUB. 5 hits. SM00202. SR. 8 hits. SM00241. ZP. 1 hit. [Graphical view] |
| PROSITE | PS01180. CUB. 5 hits. PS00420. SRCR_1. 8 hits. PS50287. SRCR_2. 8 hits. PS00682. ZP_1. 1 hit. PS51034. ZP_2. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other Resources | |
| NextBio | 282642. |
| SOURCE | Search... |
Entry information
| Entry name | DMBT1_MOUSE | ||||||||
| Accession | Primary (citable) accession number: Q60997 Secondary accession number(s): Q80YC6, Q9JMJ9 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | HPI (Human Proteome Initiative) | ||||||||
Relevant documents
| MGD cross-references Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with


