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1.N.3.1.1
Hapless 2, HAP-2 of 705 aas and 2 TMSs, one N-terminal and one near the C-terminus.  More TMSs giving hydrophobic peaks of lesser size may be present.  Essential for pollen tube guidance, successful gamete attachment and fertilization (von Besser et al. 2006; Mori et al. 2006; Wong et al. 2010).

Accession Number:F4JP36
Protein Name:Protein HAPLESS 2
Length:705
Molecular Weight:80505.00
Species:Arabidopsis thaliana (Mouse-ear cress) [3702]
Number of TMSs:1
Location1 / Topology2 / Orientation3: Endoplasmic reticulum membrane1 / Single-pass membrane protein2
Substrate small molecules, macromolecules

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MVNAILMACI LAGIFVGMFN EVDGIQILSK SKLEKCEKTS DSGNLNCSTK IVLNLAVPSG 
61:	SSGGEASIVA EIVEVEDNSS SNMQTVRIPP VITVNKSAAY ALYDLTYIRD VPYKPQEYHV 
121:	TTRKCEHDAG PDIVQICERL RDEKGNVLEQ TQPICCPCGP QRRMPSSCGD IFDKMIKGKA 
181:	NTAHCLRFPG DWFHVFGIGQ RSLGFSVRVE LKTGTRVSEV IIGPENRTAT ANDNFLKVNL 
241:	IGDFGGYTSI PSFEDFYLVI PREAAEAGQP GSLGANYSMW MLLERVRFTL DGLECNKIGV 
301:	GYEAFNTQPN FCSSPYWSCL HNQLWNFRES DINRIDRHQL PLYGLEGRFE RINQHPNAGP 
361:	HSFSIGVTET LNTNLMIELR ADDIEYVFQR SPGKIINIAI PTFEALTQFG VAAVIIKNTG 
421:	EVEASYSLTF DCSKGVAFVE EQFFIIKPKA VTTRSFKLYP TKDQAAKYIC TAILKDSQFS 
481:	EVDRAECQFS TTATVLDNGT QVTNPFQIPE TQPKGFFDSI RILWTKIING LVDFITGDTC 
541:	RNKCSSFFDF SCHIQYVCLS WMVMFGLLLA LFPITCLLLW LLHQKGLFDP CYDWWEDHFD 
601:	LDHHRRLLPS RADVVNRHHH HHKHRHHHNH HRRTHQRHKH HHGQDDDVLQ KMMLERDHSD 
661:	SHYYHQLHRV HKDSKQKQRR RAKHGIVLPR DVHVERQRKQ RLRES