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1.I.2.1.1
Recognized or proposed constituents or associated constituents of the plant plasmodesmata. CX32 is a transmembrane protein with 2 TMSs that contains a protein kinase domain (Maule, 2008). Formins 1 (Q9SE97) and 2 (O22824) are believed to regulate the plasmodesmata's permeability by capping, anchoring and stabilizing actin filaments that are localized to it (Diao et al. 2018). Formins are large proteins (~900 to 1,100 aas) with 2 or 3 N-terminal TMSs.

Accession Number:Q8GXV7
Protein Name:Cysteine-rich repeat secretory protein 56
Length:303
Molecular Weight:32607.00
Species:Arabidopsis thaliana (Mouse-ear cress) [3702]
Number of TMSs:2
Location1 / Topology2 / Orientation3: Secreted1
Substrate molecule

Cross database links:

Entrez Gene ID: 834421   
Pfam: PF01657   
KEGG: ath:AT5G43980    ath:AT5G43980   

Gene Ontology

GO:0005576 C:extracellular region
GO:0009505 C:plant-type cell wall
GO:0009506 C:plasmodesma
GO:0010497 P:plasmodesmata-mediated intercellular transport

References (8)

[1] “Structural analysis of Arabidopsis thaliana chromosome 5. II. Sequence features of the regions of 1,044,062 bp covered by thirteen physically assigned P1 clones.”  Kotani H.et.al.   9405937
[2] “Functional annotation of a full-length Arabidopsis cDNA collection.”  Seki M.et.al.   11910074
[3] “A superfamily of proteins with novel cysteine-rich repeats.”  Chen Z.et.al.   11402176
[4] “Arabidopsis cell wall proteome defined using multidimensional protein identification technology.”  Bayer E.M.et.al.   16287169
[5] “Structural analysis of Arabidopsis thaliana chromosome 5. II. Sequence features of the regions of 1,044,062 bp covered by thirteen physically assigned P1 clones.”  Kotani H.et.al.   9405937
[6] “Functional annotation of a full-length Arabidopsis cDNA collection.”  Seki M.et.al.   11910074
[7] “A superfamily of proteins with novel cysteine-rich repeats.”  Chen Z.et.al.   11402176
[8] “Arabidopsis cell wall proteome defined using multidimensional protein identification technology.”  Bayer E.M.et.al.   16287169

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence 
1:	MKLTYQFFIF WFFLPFFAIS GDDDYKNLIF KGCANQKSPD PTGVFSQNLK NLFTSLVSQS 
61:	SQSSFASVTS GTDNTTAVIG VFQCRGDLQN AQCYDCVSKI PKLVSKLCGG GRDDGNVVAA 
121:	RVHLAGCYIR YESSGFRQTS GTEMLFRVCG KKDSNDPGFV GKRETAFGMA ENGVKTGSSG 
181:	GGGGGGGFYA GQYESVYVLG QCEGSLGNSD CGECVKDGFE KAKSECGESN SGQVYLQKCF 
241:	VSYSYYSHGV PNIEPLSGGE KRQHTERTIA LAVGGVFVLG FVIVCLLVLR SAMKKKSNKY 
301:	DAY