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8.A.31.1.4
Prostate and testis expressed  protein 4, PATE4 or SVS VII, is a heat labile phospholipid binding protein of 99 aas with 1 N-terminal TMS.  It enhances sperm motility and binds to calmodulin to inhibit calcium transport into spermatozoa. It may also modulate the function of nicotinic acetylcholine receptors (Luo et al. 2001).

Accession Number:Q09098
Protein Name:Prostate and testis expressed protein 4
Length:99
Molecular Weight:11058.00
Species:Mus musculus (Mouse) [10090]
Number of TMSs:1
Location1 / Topology2 / Orientation3: Secreted1
Substrate

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MNSVTKISTL LIVILSFLCF VEGLICNSCE KSRDSRCTMS QSRCVAKPGE SCSTVSHFVG 
61:	TKHVYSKQMC SPQCKEKQLN TGKKLIYIMC CEKNLCNSF