Conserved Protein Domain Family
bHLH-O_HES5

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cd11461: bHLH-O_HES5 
basic helix-loop-helix-orange (bHLH-O) domain found in transcription factor HES-5 and similar proteins
HES-5, also termed Class B basic helix-loop-helix protein 38 (bHLHb38), or hairy and enhancer of split 5, is a bHLH-O transcription factor that is involved in cell differentiation and proliferation in a variety of tissues. HES-5 is an essential effector for Notch signaling. It acts as a transducer of Notch signals in brain vascular development. It also acts as a key mediator of Wnt-3a-induced neuronal differentiation and plays a crucial role in normal inner ear hair cell development. HES-5 is one mammalian counterpart of the Hairy and Enhancer of split proteins that play a critical role in many physiological processes including cellular differentiation, cell cycle arrest, apoptosis and self-renewal ability.
Statistics
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PSSM-Id: 381467
Aligned: 11 rows
Threshold Bit Score: 86.6281
Created: 22-Oct-2011
Updated: 2-Oct-2020
Structure
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Aligned Rows:
 
putative DNAputative dimer
Feature 1:putative DNA binding site [nucleic acid binding site]
Evidence:
  • Comment:The N-terminal basic region of bHLH mediates high-affinity DNA-binding to specific hexanucleotide sequences
  • Comment:Based on the structure evidence that Mus musculus NPAS3 (5SY7)-ARNT complex binds HRE DNA.

Sequence Alignment
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Format: Row Display: Color Bits: Type Selection:
Feature 1           ###  # ##   #                          ##                  
Q5TA89        18 RLRKPVVEKMRRDRINSSIEQLKLLLEQEFarhq---pnsKLEKADILEMAVSYLKHSKAFV 76  human
NP_001012713  18 RLRKPIVEKLRRDRINSSIEQLKLLLEKEFqrhq---pnsKLEKADILEMTVSYLKYSRAFA 76  chicken
XP_005996651  18 KLRKPAVEKLRRDRINRSIMQLKLLLEKEFqkhh---pssKLEKADILEMAVSYLRQQSQLQ 76  coelacanth
XP_007906822  25 KLMKPVIEKKRRDRINHSIDQLKTLLGREFqnqe---pnmKLEKADILEMTVNFLKLHNQRL 83  elephant shark
AAH71465      23 KLRKPIVEKMRRDRINTCIDQLKSLLEKEFhshd---pstKLEKADILEMTVSFLKQQIKQQ 81  zebrafish
XP_007896064  26 RLMKPMVEKRRRDRINQSIAQLKQLLGTQLqner---ancKLEKADILESAVTYLQHNPELT 84  elephant shark
NP_571165     19 KLRKPMVEKIRRERINSSIEKLKTLLAQEFvkqq---pdsRQEKADILEMTLDFLRRSQKSS 77  zebrafish
XP_016359647  20 KFRTILVEKTRRDRINRSIENLRELFHKTTpmse--rqfvRLDKADILEMTVDFLKRRAKSS 79  Sinocyclocheilus anshuiensis
XP_020337784  46 KLRKLVVEKIRRDRINSSIEQLRTLLHRGQmcgqqqqrlsKLEKADILELAVSFLQKETKAG 107 coho salmon
XP_017305506  18 KLRKIQAEKTRRDRINSSIEQLRMIFCPIMqite--eqavKLEKADILEMAVTLLRQKAGLR 77  channel catfish
XP_002933895  23 QIRKPVVEKMRRDRINSSIKQLRMLLEKEFqrhq---pnsKLEKADILEMTVNYLKEHQLQM 81  tropical clawed frog

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