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1.A.54.3.5
Impas 1 (IMP1, HM13, PSL3, APP, MARP086) possesses endoproteolytic activity against multipass membrane protein substrates, cleaving the presenilin 1 holoprotein (Moliaka et al. 2004).

Accession Number:Q8TCT9
Protein Name:Minor histocompatibility antigen H13
Length:377
Molecular Weight:41488.00
Species:Homo sapiens (Human) [9606]
Number of TMSs:8
Location1 / Topology2 / Orientation3: Cell membrane1 / Multi-pass membrane protein2
Substrate

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MDSALSDPHN GSAEAGGPTN STTRPPSTPE GIALAYGSLL LMALLPIFFG ALRSVRCARG 
61:	KNASDMPETI TSRDAARFPI IASCTLLGLY LFFKIFSQEY INLLLSMYFF VLGILALSHT 
121:	ISPFMNKFFP ASFPNRQYQL LFTQGSGENK EEIINYEFDT KDLVCLGLSS IVGVWYLLRK 
181:	HWIANNLFGL AFSLNGVELL HLNNVSTGCI LLGGLFIYDV FWVFGTNVMV TVAKSFEAPI 
241:	KLVFPQDLLE KGLEANNFAM LGLGDVVIPG IFIALLLRFD ISLKKNTHTY FYTSFAAYIF 
301:	GLGLTIFIMH IFKHAQPALL YLVPACIGFP VLVALAKGEV TEMFSYEESN PKDPAAVTES 
361:	KEGTEASASK GLEKKEK