7st3: Difference between revisions

Latest revision as of 09:39, 25 October 2023

Consequences of HLA single chain trimer mutations on peptide presentation and binding affinity

Structural highlights

7st3 is a 32 chain structure with sequence from Homo sapiens, Human papillomavirus type 16, Lama glama and Pongo pygmaeus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.78Å
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

VE7_HPV16 Plays a role in viral genome replication by driving entry of quiescent cells into the cell cycle. Stimulation of progression from G1 to S phase allows the virus to efficiently use the cellular DNA replicating machinery to achieve viral genome replication. E7 protein has both transforming and trans-activating activities. Induces the disassembly of the E2F1 transcription factor from RB1, with subsequent transcriptional activation of E2F1-regulated S-phase genes. Interferes with host histone deacetylation mediated by HDAC1 and HDAC2, leading to transcription activation. Also plays a role in the inhibition of both antiviral and antiproliferative functions of host interferon alpha. Interaction with host TMEM173/STING impairs the ability of TMEM173/STING to sense cytosolic DNA and promote the production of type I interferon (IFN-alpha and IFN-beta).[HAMAP-Rule:MF_04004]^[1] ^[2] ^[3] A0A678ZGP6_HUMAN B2MG_PONPY Component of the class I major histocompatibility complex (MHC). Involved in the presentation of peptide antigens to the immune system (By similarity).

References

↑ Barnard P, Payne E, McMillan NA. The human papillomavirus E7 protein is able to inhibit the antiviral and anti-growth functions of interferon-alpha. Virology. 2000 Nov 25;277(2):411-9. doi: 10.1006/viro.2000.0584. PMID:11080488 doi:https://dx.doi.org/10.1006/viro.2000.0584
↑ Chellappan S, Kraus VB, Kroger B, Munger K, Howley PM, Phelps WC, Nevins JR. Adenovirus E1A, simian virus 40 tumor antigen, and human papillomavirus E7 protein share the capacity to disrupt the interaction between transcription factor E2F and the retinoblastoma gene product. Proc Natl Acad Sci U S A. 1992 May 15;89(10):4549-53. PMID:1316611
↑ Phelps WC, Yee CL, Munger K, Howley PM. The human papillomavirus type 16 E7 gene encodes transactivation and transformation functions similar to those of adenovirus E1A. Cell. 1988 May 20;53(4):539-47. doi: 10.1016/0092-8674(88)90570-3. PMID:2836062 doi:https://dx.doi.org/10.1016/0092-8674(88)90570-3

Proteopedia Page Contributors and Editors (what is this?)

OCA

[1] Barnard P, Payne E, McMillan NA. The human papillomavirus E7 protein is able to inhibit the antiviral and anti-growth functions of interferon-alpha. Virology. 2000 Nov 25;277(2):411-9. doi: 10.1006/viro.2000.0584. PMID:11080488 doi:https://dx.doi.org/10.1006/viro.2000.0584

[2] Chellappan S, Kraus VB, Kroger B, Munger K, Howley PM, Phelps WC, Nevins JR. Adenovirus E1A, simian virus 40 tumor antigen, and human papillomavirus E7 protein share the capacity to disrupt the interaction between transcription factor E2F and the retinoblastoma gene product. Proc Natl Acad Sci U S A. 1992 May 15;89(10):4549-53. PMID:1316611

[3] Phelps WC, Yee CL, Munger K, Howley PM. The human papillomavirus type 16 E7 gene encodes transactivation and transformation functions similar to those of adenovirus E1A. Cell. 1988 May 20;53(4):539-47. doi: 10.1016/0092-8674(88)90570-3. PMID:2836062 doi:https://dx.doi.org/10.1016/0092-8674(88)90570-3

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[2]

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 == Structural highlights ==
 <table><tr><td colspan='2'>[[7st3]] is a 32 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens], [https://en.wikipedia.org/wiki/Human_papillomavirus_type_16 Human papillomavirus type 16], [https://en.wikipedia.org/wiki/Lama_glama Lama glama] and [https://en.wikipedia.org/wiki/Pongo_pygmaeus Pongo pygmaeus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7ST3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7ST3 FirstGlance]. <br>
-</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=7st3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7st3 OCA], [https://pdbe.org/7st3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7st3 RCSB], [https://www.ebi.ac.uk/pdbsum/7st3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7st3 ProSAT]</span></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.78&#8491;</td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=7st3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7st3 OCA], [https://pdbe.org/7st3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7st3 RCSB], [https://www.ebi.ac.uk/pdbsum/7st3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7st3 ProSAT]</span></td></tr>
 </table>
 == Function ==

7st3: Difference between revisions

Latest revision as of 09:39, 25 October 2023

Consequences of HLA single chain trimer mutations on peptide presentation and binding affinity

Structural highlights

Function

References

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