KREMEN1

Last updated
KREMEN1
Available structures
PDB Ortholog search: PDBe RCSB
Identifiers
Aliases KREMEN1 , KREMEN, KRM1, kringle containing transmembrane protein 1, ECTD13
External IDs OMIM: 609898 MGI: 1933988 HomoloGene: 12935 GeneCards: KREMEN1
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001039570
NM_032045
NM_153379

NM_032396

RefSeq (protein)

NP_001034659
NP_114434

NP_115772

Location (UCSC) Chr 22: 29.07 – 29.17 Mb Chr 11: 5.14 – 5.21 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Kremen protein 1 is a protein that in humans is encoded by the KREMEN1 gene. [5] [6] Kremen1 is conserved in chordates including amphioxus [7] and most vertebrate species. [8] The protein is a type I transmembrane receptor of ligands Dickkopf1, [9] Dickkopf2, Dickkopf3, Dickkopf4, EpCAM [10] and Rspondin1.

Contents

Function

This gene encodes a high-affinity dickkopf homolog 1 (DKK1) transmembrane receptor that functionally cooperates with DKK1 to block wingless (WNT)/beta-catenin signaling. The encoded protein is a component of a membrane complex that modulates canonical WNT signaling through lipoprotein receptor-related protein 6 (LRP6). It contains extracellular Kringle, WSC, and CUB domains. Alternatively spliced transcript variants encoding distinct isoforms have been observed for this gene. [6]

Kremen1 also has a function in the induction of cell death by apoptosis. [8] This proapototic activity is conditional and depends on the absence of ligand Dickkopf1. [8] These observations led to the classification of this protein as a Dependence Receptor.

A mouse knock out of Kremen1 and its paralog Kremen2 is viable and fertile. [11]

Related Research Articles

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<span class="mw-page-title-main">Proto-oncogene Wnt-1</span> Protein-coding gene in the species Homo sapiens

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References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000183762 - Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000020393 - Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Nakamura T, Aoki S, Kitajima K, Takahashi T, Matsumoto K, Nakamura T (Mar 2001). "Molecular cloning and characterization of Kremen, a novel kringle-containing transmembrane protein". Biochim Biophys Acta. 1518 (1–2): 63–72. doi:10.1016/s0167-4781(01)00168-3. PMID   11267660.
  6. 1 2 "Entrez Gene: KREMEN1 kringle containing transmembrane protein 1".
  7. Zhang, Yujun; Mao, Bingyu (2010-09-01). "Embryonic expression and evolutionary analysis of the amphioxus Dickkopf and Kremen family genes". Journal of Genetics and Genomics = Yi Chuan Xue Bao. 37 (9): 637–645. doi:10.1016/S1673-8527(09)60082-5. ISSN   1673-8527. PMID   20933216.
  8. 1 2 3 Causeret, F.; Sumia, I.; Pierani, A. (2016-02-01). "Kremen1 and Dickkopf1 control cell survival in a Wnt-independent manner". Cell Death and Differentiation. 23 (2): 323–332. doi:10.1038/cdd.2015.100. ISSN   1476-5403. PMC   4716294 . PMID   26206087.
  9. Mao, Bingyu; Wu, Wei; Davidson, Gary; Marhold, Joachim; Li, Mingfa; Mechler, Bernard M.; Delius, Hajo; Hoppe, Dana; Stannek, Peter (2002-06-06). "Kremen proteins are Dickkopf receptors that regulate Wnt/beta-catenin signalling". Nature. 417 (6889): 664–667. Bibcode:2002Natur.417..664M. doi:10.1038/nature756. ISSN   0028-0836. PMID   12050670. S2CID   4418943.
  10. Lu, Huiqiang; Ma, Jun; Yang, Yun; Shi, Wenchao; Luo, Lingfei (2013-03-11). "EpCAM is an endoderm-specific Wnt derepressor that licenses hepatic development". Developmental Cell. 24 (5): 543–553. doi: 10.1016/j.devcel.2013.01.021 . ISSN   1878-1551. PMID   23484855.
  11. Ellwanger, Kristina; Saito, Hiroaki; Clément-Lacroix, Philippe; Maltry, Nicole; Niedermeyer, Joachim; Lee, Woon Kyu; Baron, Roland; Rawadi, Georges; Westphal, Heiner (2008-08-01). "Targeted disruption of the Wnt regulator Kremen induces limb defects and high bone density". Molecular and Cellular Biology. 28 (15): 4875–4882. doi:10.1128/MCB.00222-08. ISSN   1098-5549. PMC   2493355 . PMID   18505822.

Further reading