1B4F,1SGG


Conserved Protein Domain Family
SAM_EPH-B2

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cd09552: SAM_EPH-B2 
Click on image for an interactive view with Cn3D
SAM domain of EPH-B2 subfamily of tyrosine kinase receptors
SAM (sterile alpha motif) domain of EPH-B2 subfamily of receptor tyrosine kinases is a C-terminal potential protein-protein interaction domain. This domain is located in the cytoplasmic region of EPH-B2 receptors and appears to mediate cell-cell initiated signal transduction. SAM domains of this subfamily form homodimers/oligomers (in head-to-head/tail-to-tail orientation); apparently such clustering is necessary for signaling. EPH-B2 receptor is involved in regulation of synaptic function; it is needed for normal vestibular function, proper formation of anterior commissure, control of cell positioning, and ordered migration in the intestinal epithelium. EPH-B2 plays a tumor suppressor role in colorectal cancer. It was found to be downregulated in gastric cancer and thus may be a negative biomarker for it.
Statistics
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PSSM-Id: 188951
Aligned: 4 rows
Threshold Bit Score: 140.912
Created: 10-May-2010
Updated: 2-Oct-2020
Structure
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Program:
Drawing:
Aligned Rows:
 
Conserved site includes 2 residues -Click on image for an interactive view with Cn3D
Feature 1:putative phosphorylation site [posttranslational modification site]
Evidence:
  • Comment:Low possibility for phosphorylation of highlighted tyrosine since it requires a structural change for this residue to become exposed on the surface. Highlighted histidine is involved in a hydrogen bond with tyrosine.

Sequence Alignment
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Format: Row Display: Color Bits: Type Selection:
Feature 1                         #                                #                 
1B4F_A      6 PDYTSFNTVDEWLEAIKMGQYKESFANAGFTSFDVVSQMMMEDILRVGVTLAGHQKKILNSIQVMRAQMNQ 76   human
1SGG_A      5 PDYTSFNTVDEWLDAIKMSQYKESFASAGFTTFDIVSQMTVEDILRVGVTLAGHQKKILNSIQVMRAQMNQ 75   chicken
CAM12906  913 PDFSSFSSVDDWLDAIKMGQYKDNFANGNFTSFDLVSQMTMEDILRVGVTLAGHQKKILNSVQMMRAQMNQ 983  zebrafish
AAB94603  739 PAYTSLSRGDEWLDAIKMAQYKESFANAGFTSFDVISQMCMEDILRVGVTLAGHQKKILNSLQVMRAQMNQ 809  African clawed frog

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