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Table 2 Properties and motifs of maize SUN-domain protiens.

From: Structure and expression of the maize (Zea maysL.) SUN-domain protein gene family: evidence for the existence of two divergent classes of SUN proteins in plants

  Predicted propertiesa Motifse
Class Name Lengthb kDa pIc Cysd TMf SUNg CCh PADi
CCSD ZmSUN1 462 51 9.1 3 W116-W141 N315-K454, (6 e-39) F165-D228  
  ZmSUN2 439 48 7.8 3 T84-W109 P294-G425 (3 e-32 D166-L192  
PM3 ZmSUN3 613 68 4.9 7 TM1, L33-V55
TM2, L555-M577
TM3, L599-I612
F233-D357 (2 e-38) A482-F515 G437-G474
  ZmSUN4 639 71 5.2 9 TM1, G58-L75
TM2, L581-M603
TM3, G621-I638
F257-D381 (7 e-38) D514-E539 G463-G500
  ZmSUN5 589 64 5.3 9 TM1, V46-L66
TM2, L525-C544
TM3, M572-Y588
H197-D321 (9 e-35) CC1, V414-E434 CC2, K495-K523 G407-G444
  1. aProtein ORFs used were predicted from the sequences listed under cDNA from Table 1. Properties were calculated by means of the online ProtParam software, http://us.expasy.org/tools/protparam.html[80].
  2. bTotal number of amino acids in the predicted ORF.
  3. cpI, predicted isoelectric point.
  4. dTotal number of cysteine residues.
  5. eMotifs and domains are indicated by the first and last amino acid; the amino acid numbers for the ORFs are those from the sequences listed under cDNA from Table 1.
  6. fTM, locations of transmembrane regions predicted by the online software www.ch.embnet.org/software/TMPRED_form.html[70]. The multiple TMs of the PM3 proteins are named TM1, TM2, and TM3 according to the order of their occurrence starting from the N-terminus.
  7. gSUN, Sad1_UNC superfamily (pfam07738) domain locations and significance values are from alignments to the Conserved Domain Database (CDD version 2.21, NCBI), http://www.ncbi.nlm.nih.gov/Structure/cdd/cdd.shtml[81].
  8. hCC, coiled-coil motifs are predicted from the online COILS software http://www.ch.embnet.org/software/COILS_form.html[69]. The two CCs in SUN5 are called CC1 and CC2 according to the order of their occurrence starting from the N-terminus.
  9. iPAD, PM3-associated domain of unknown function defined here by multiple sequence alignments.