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1.G.10.1.1
The herpes envelope glycoprotein class III membrane fusion system including glycoproteins gB, gD, gH and gL.  There are two fusion peptides of 8 aas each that form a bipartite system (Apellániz et al. 2014; Feng and Jia 2016).

Accession Number:P10211
Protein Name:Envelope glycoprotein B
Length:904
Molecular Weight:100292.00
Species:Human herpesvirus 1 (strain 17) (HHV-1) [10299]
Number of TMSs:4
Location1 / Topology2 / Orientation3: Virion membrane1 / Single-pass type I membrane protein2
Substrate molecule

Cross database links:

Entrez Gene ID: 2703455   
Pfam: PF00606   

Gene Ontology

GO:0044175 C:host cell endosome membrane
GO:0044178 C:host cell Golgi membrane
GO:0020002 C:host cell plasma membrane
GO:0016021 C:integral to membrane
GO:0055036 C:virion membrane
GO:0044419 P:interspecies interaction between organisms

References (5)

[1] “The complete DNA sequence of the long unique region in the genome of herpes simplex virus type 1.”  McGeoch D.J.et.al.   2839594
[2] “Determination and analysis of the DNA sequence of highly attenuated herpes simplex virus type 1 mutant HF10, a potential oncolytic virus.”  Ushijima Y.et.al.   17218138
[3] “Herpes simplex virus type 1 gK is required for gB-mediated virus-induced cell fusion, while neither gB and gK nor gB and UL20p function redundantly in virion de-envelopment.”  Melancon J.M.et.al.   15596825
[4] “Intracellular trafficking and maturation of herpes simplex virus type 1 gB and virus egress require functional biogenesis of multivesicular bodies.”  Calistri A.et.al.   17686835
[5] “Complexes between herpes simplex virus glycoproteins gD, gB, and gH detected in cells by complementation of split enhanced green fluorescent protein.”  Avitabile E.et.al.   17670828
Structure:
5V2S   6BM8     

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Analyze:

Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MRQGAPARGR RWFVVWALLG LTLGVLVASA APSSPGTPGV AAATQAANGG PATPAPPAPG 
61:	APPTGDPKPK KNRKPKPPKP PRPAGDNATV AAGHATLREH LRDIKAENTD ANFYVCPPPT 
121:	GATVVQFEQP RRCPTRPEGQ NYTEGIAVVF KENIAPYKFK ATMYYKDVTV SQVWFGHRYS 
181:	QFMGIFEDRA PVPFEEVIDK INAKGVCRST AKYVRNNLET TAFHRDDHET DMELKPANAA 
241:	TRTSRGWHTT DLKYNPSRVE AFHRYGTTVN CIVEEVDARS VYPYDEFVLA TGDFVYMSPF 
301:	YGYREGSHTE HTSYAADRFK QVDGFYARDL TTKARATAPT TRNLLTTPKF TVAWDWVPKR 
361:	PSVCTMTKWQ EVDEMLRSEY GGSFRFSSDA ISTTFTTNLT EYPLSRVDLG DCIGKDARDA 
421:	MDRIFARRYN ATHIKVGQPQ YYLANGGFLI AYQPLLSNTL AELYVREHLR EQSRKPPNPT 
481:	PPPPGASANA SVERIKTTSS IEFARLQFTY NHIQRHVNDM LGRVAIAWCE LQNHELTLWN 
541:	EARKLNPNAI ASATVGRRVS ARMLGDVMAV STCVPVAADN VIVQNSMRIS SRPGACYSRP 
601:	LVSFRYEDQG PLVEGQLGEN NELRLTRDAI EPCTVGHRRY FTFGGGYVYF EEYAYSHQLS 
661:	RADITTVSTF IDLNITMLED HEFVPLEVYT RHEIKDSGLL DYTEVQRRNQ LHDLRFADID 
721:	TVIHADANAA MFAGLGAFFE GMGDLGRAVG KVVMGIVGGV VSAVSGVSSF MSNPFGALAV 
781:	GLLVLAGLAA AFFAFRYVMR LQSNPMKALY PLTTKELKNP TNPDASGEGE EGGDFDEAKL 
841:	AEAREMIRYM ALVSAMERTE HKAKKKGTSA LLSAKVTDMV MRKRRNTNYT QVPNKDGDAD 
901:	EDDL