LEM domain-containing protein 3: Difference between revisions

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'''LEM domain-containing protein 3''' (LEMD3), also known as '''MAN1''', is an integral [[Inner nuclear membrane proteins|protein in the inner nuclear membrane (INM)]] of the [[nuclear envelope]]. It is encoded by the ''LEMD3'' gene<ref name=Worman>{{Cite journal  
'''LEM domain-containing protein 3''' (LEMD3), also known as '''MAN1''', is an integral [[Inner nuclear membrane proteins|protein in the inner nuclear membrane (INM)]] of the [[nuclear envelope]]. It is encoded by the ''LEMD3'' gene<ref name=Worman>{{cite journal | vauthors = Worman HJ, Fong LG, Muchir A, Young SG | title = Laminopathies and the long strange trip from basic cell biology to therapy | journal = The Journal of Clinical Investigation | volume = 119 | issue = 7 | pages = 1825–36 | date = July 2009 | pmid = 19587457 | pmc = 2701866 | doi = 10.1172/JCI37679 }}</ref> and was first identified after it was isolated from the [[serum (blood)|serum]] of a patient with a collagen vascular disease.<ref name=PL>{{cite journal | vauthors = Paulin-Levasseur M, Blake DL, Julien M, Rouleau L | title = The MAN antigens are non-lamin constituents of the nuclear lamina in vertebrate cells | journal = Chromosoma | volume = 104 | issue = 5 | pages = 367–79 | year = 1996 | pmid = 8575249 | doi = 10.1007/BF00337226 }}</ref>
| last1 = Worman | first1 = H. J.
| last2 = Fong | first2 = L. G.
| last3 = Muchir | first3 = A.
| last4 = Young | first4 = S. G.
| title = Laminopathies and the long strange trip from basic cell biology to therapy  
| doi = 10.1172/JCI37679
| journal = Journal of Clinical Investigation  
| volume = 119  
| issue = 7  
| pages = 1825–1836
| year = 2009  
| pmid = 19587457  
| pmc =2701866  
}}</ref> and was first identified after it was isolated from the [[serum (blood)|serum]] of a patient with a collagen vascular disease.<ref name=PL>{{Cite journal  
| last1 = Paulin-Levasseur | first1 = M.
| last2 = Blake | first2 = D. L.
| last3 = Julien | first3 = M.
| last4 = Rouleau | first4 = L.
| title = The MAN antigens are non-lamin constituents of the nuclear lamina in vertebrate cells  
| journal = Chromosoma  
| volume = 104  
| issue = 5  
| pages = 367–379
| year = 1996  
| pmid = 8575249 | doi=10.1007/BF00337226
}}</ref>


==Structure==
==Structure==
The protein is 82.3 kDa and has a 40 amino acid long [[LEM domain|LEM]] [[protein domain|domain]] located at its amino-terminal region. In its carboxyl end it has a [[RNA recognition motif]] (RRM). The LEM domain is also common to two other integral proteins of the INM: [[lamina-associated polypeptide 2]] (LAP2) and [[emerin]].<ref name=Lin>{{Cite journal  
The protein is 82.3 kDa and has a 40 amino acid long [[LEM domain|LEM]] [[protein domain|domain]] located at its amino-terminal region. In its carboxyl end it has a [[RNA recognition motif]] (RRM). The LEM domain is also common to two other integral proteins of the INM: [[lamina-associated polypeptide 2]] (LAP2) and [[emerin]].<ref name=Lin>{{cite journal | vauthors = Lin F, Blake DL, Callebaut I, Skerjanc IS, Holmer L, McBurney MW, Paulin-Levasseur M, Worman HJ | title = MAN1, an inner nuclear membrane protein that shares the LEM domain with lamina-associated polypeptide 2 and emerin | journal = The Journal of Biological Chemistry | volume = 275 | issue = 7 | pages = 4840–7 | date = February 2000 | pmid = 10671519 | doi = 10.1074/jbc.275.7.4840 }}</ref>
| last1 = Lin | first1 = F.
| last2 = Blake | first2 = D. L.
| last3 = Callebaut | first3 = I.
| last4 = Skerjanc | first4 = I. S.
| last5 = Holmer | first5 = L.
| last6 = McBurney | first6 = M. W.
| last7 = Paulin-Levasseur | first7 = M.
| last8 = Worman | first8 = H. J.
| title = MAN1, an inner nuclear membrane protein that shares the LEM domain with lamina-associated polypeptide 2 and emerin  
| journal = The Journal of Biological Chemistry  
| volume = 275  
| issue = 7  
| pages = 4840–4847
| year = 2000  
| pmid = 10671519 | doi=10.1074/jbc.275.7.4840
}}</ref>


The LEM segment enables LEMD3 to attach to the [[barrier-to-autointegration factor]] (BAF), and therefore, indirectly interact with the [[chromatin]]. LEMD3 also has several implications in regulating the [[cytokine]] family such as the [[transforming growth factor beta]] (TGF-β) and [[bone morphogenic protein]] (BMPs). The RRM domain in its carboxylic region attaches to the [[Smads|SMAD (protein)]] proteins, which is involved in mediating TGF-β [[cellular signalling]]. Consequently, LEMD3 indirectly regulates downstream genes.
The LEM segment enables LEMD3 to attach to the [[barrier-to-autointegration factor]] (BAF), and therefore, indirectly interact with the [[chromatin]]. LEMD3 also has several implications in regulating the [[cytokine]] family such as the [[transforming growth factor beta]] (TGF-β) and [[bone morphogenic protein]] (BMPs). The RRM domain in its carboxylic region attaches to the [[Smads|SMAD (protein)]] proteins, which is involved in mediating TGF-β [[cellular signalling]]. Consequently, LEMD3 indirectly regulates downstream genes.
Line 71: Line 29:


==LEMD3 and disease==
==LEMD3 and disease==
LEMD3 has been associated with [[laminopathies]]<ref name=Worman /> as well as [[osteopoikilosis]].<ref name=Mumm>{{Cite journal  
LEMD3 has been associated with [[laminopathies]]<ref name=Worman /> as well as [[osteopoikilosis]].<ref name=Mumm>{{cite journal | vauthors = Mumm S, Wenkert D, Zhang X, McAlister WH, Mier RJ, Whyte MP | title = Deactivating germline mutations in LEMD3 cause osteopoikilosis and Buschke-Ollendorff syndrome, but not sporadic melorheostosis | journal = Journal of Bone and Mineral Research | volume = 22 | issue = 2 | pages = 243–50 | date = February 2007 | pmid = 17087626 | pmc = | doi = 10.1359/jbmr.061102 }}</ref> Mutations in the ''LEMD3'' gene have been linked to several genetic diseases such as [[osteopoikilosis]], [[melorheostosis]] and [[Buschke-Ollendorff syndrome]].
| last1 = Mumm | first1 = S.
| last2 = Wenkert | first2 = D.
| last3 = Zhang | first3 = X.
| last4 = McAlister | first4 = W. H.
| last5 = Mier | first5 = R. J.
| last6 = Whyte | first6 = M. P.
| doi = 10.1359/jbmr.061102
| title = Deactivating Germline Mutations in LEMD3 Cause Osteopoikilosis and Buschke-Ollendorff Syndrome, but Not Sporadic Melorheostosis
| journal = Journal of Bone and Mineral Research  
| volume = 22  
| issue = 2  
| pages = 243–250
| year = 2006
| pmid = 17087626  
| pmc =  
}}</ref> Mutations in the ''LEMD3'' gene have been linked to several genetic diseases such as [[osteopoikilosis]], [[melorheostosis]] and [[Buschke-Ollendorff syndrome]].


==See also==
== See also ==
[[Inner nuclear membrane proteins]]
[[Inner nuclear membrane proteins]]


==References==
== References ==
{{reflist}}
{{reflist|32em}}


==External links==
== External links ==
* {{MeshName|LEMD3+protein,+human}}
* {{MeshName|LEMD3+protein,+human}}

Latest revision as of 17:32, 7 February 2018

LEM domain containing protein 3
Identifiers
SymbolLEMD3
Alt. symbolsMAN1
Entrez23592
HUGO28887
OMIM607844
RefSeqNM_014319
UniProtQ9Y2U8
Other data
LocusChr. 12 q14

LEM domain-containing protein 3 (LEMD3), also known as MAN1, is an integral protein in the inner nuclear membrane (INM) of the nuclear envelope. It is encoded by the LEMD3 gene[1] and was first identified after it was isolated from the serum of a patient with a collagen vascular disease.[2]

Structure

The protein is 82.3 kDa and has a 40 amino acid long LEM domain located at its amino-terminal region. In its carboxyl end it has a RNA recognition motif (RRM). The LEM domain is also common to two other integral proteins of the INM: lamina-associated polypeptide 2 (LAP2) and emerin.[3]

The LEM segment enables LEMD3 to attach to the barrier-to-autointegration factor (BAF), and therefore, indirectly interact with the chromatin. LEMD3 also has several implications in regulating the cytokine family such as the transforming growth factor beta (TGF-β) and bone morphogenic protein (BMPs). The RRM domain in its carboxylic region attaches to the SMAD (protein) proteins, which is involved in mediating TGF-β cellular signalling. Consequently, LEMD3 indirectly regulates downstream genes.

LEMD3 seems to play an important role in regulating the expression of several fundamental genes.

LEMD3 and disease

LEMD3 has been associated with laminopathies[1] as well as osteopoikilosis.[4] Mutations in the LEMD3 gene have been linked to several genetic diseases such as osteopoikilosis, melorheostosis and Buschke-Ollendorff syndrome.

See also

Inner nuclear membrane proteins

References

  1. 1.0 1.1 Worman HJ, Fong LG, Muchir A, Young SG (July 2009). "Laminopathies and the long strange trip from basic cell biology to therapy". The Journal of Clinical Investigation. 119 (7): 1825–36. doi:10.1172/JCI37679. PMC 2701866. PMID 19587457.
  2. Paulin-Levasseur M, Blake DL, Julien M, Rouleau L (1996). "The MAN antigens are non-lamin constituents of the nuclear lamina in vertebrate cells". Chromosoma. 104 (5): 367–79. doi:10.1007/BF00337226. PMID 8575249.
  3. Lin F, Blake DL, Callebaut I, Skerjanc IS, Holmer L, McBurney MW, Paulin-Levasseur M, Worman HJ (February 2000). "MAN1, an inner nuclear membrane protein that shares the LEM domain with lamina-associated polypeptide 2 and emerin". The Journal of Biological Chemistry. 275 (7): 4840–7. doi:10.1074/jbc.275.7.4840. PMID 10671519.
  4. Mumm S, Wenkert D, Zhang X, McAlister WH, Mier RJ, Whyte MP (February 2007). "Deactivating germline mutations in LEMD3 cause osteopoikilosis and Buschke-Ollendorff syndrome, but not sporadic melorheostosis". Journal of Bone and Mineral Research. 22 (2): 243–50. doi:10.1359/jbmr.061102. PMID 17087626.

External links