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1.A.8.12.13
Rice NIP2.1 (NIP2-1; NIP2;1) of 295 aas and 6 or 7 TMSs. It transports metaloids such as arsenous acid (arsenic) and silisic acid (silicon).  The 3-D structure has been determined (Sharma et al. 2023). This protein is most similar to TC# 1.A.8.12.2 within TCDB.

Accession Number:Q19KC1
Protein Name:Aquaporin NIP2-1
Length:295
Molecular Weight:31761.00
Species:Zea mays (Maize) [4577]
Number of TMSs:7
Location1 / Topology2 / Orientation3: Membrane1 / Multi-pass membrane protein2
Substrate silicic acid

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MSTNSRSNSR ANFNNEIHDI GTAQNSSMPP TYYDRSLADI FPPHLLKKVV SEVVSTFLLV 
61:	FVTCGAAGIY GSDKDRISQL GQSVAGGLIV TVMIYAVGHI SGAHMNPAVT LAFAVFRHFP 
121:	WIQVPFYWAA QFTGSICASF VLKAVLHPIA VLGTTTPTGP HWHSLVIEII VTFNMMFVTL 
181:	AVATDTRAVG ELAGLAVGSA VCITSIFAGA VSGGSMNPAR TLGPALASNL YTGLWIYFLG 
241:	PVLGTLSGAW TYTYIRFEEA PSHKDMSQKL SSFKLRRLQS QSVAVDDDEL DHIQV