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Conserved domains on  [gi|1958657253|ref|XP_038941435|]
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max-binding protein MNT isoform X2 [Rattus norvegicus]

Protein Classification

basic helix-loop-helix domain-containing protein( domain architecture ID 385)

basic helix-loop-helix (bHLH) domain-containing protein is a DNA-binding protein that may act as a transcription factor

CATH:  4.10.280.10
Gene Ontology:  GO:0003677|GO:0046983
SCOP:  4000913

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
bHLH_SF super family cl00081
basic Helix Loop Helix (bHLH) domain superfamily; bHLH proteins are transcriptional regulators ...
9-36 4.67e-11

basic Helix Loop Helix (bHLH) domain superfamily; bHLH proteins are transcriptional regulators that are found in organisms from yeast to humans. Members of the bHLH superfamily have two highly conserved and functionally distinct regions. The basic part is at the amino end of the bHLH that may bind DNA to a consensus hexanucleotide sequence known as the E box (CANNTG). Different families of bHLH proteins recognize different E-box consensus sequences. At the carboxyl-terminal end of the region is the HLH region that interacts with other proteins to form homo- and heterodimers. bHLH proteins function as a diverse set of regulatory factors because they recognize different DNA sequences and dimerize with different proteins. The bHLH proteins can be divided to cell-type specific and widely expressed proteins. The cell-type specific members of bHLH superfamily are involved in cell-fate determination and act in neurogenesis, cardiogenesis, myogenesis, and hematopoiesis.


The actual alignment was detected with superfamily member cd11402:

Pssm-ID: 469605 [Multi-domain]  Cd Length: 77  Bit Score: 58.10  E-value: 4.67e-11
                          10        20
                  ....*....|....*....|....*...
gi 1958657253   9 QSLKRKEKEYEHEMERLAREKIATQQRL 36
Cdd:cd11402    50 QILKRKEKEYEHEMERLAREKIALQQRL 77
 
Name Accession Description Interval E-value
bHLHzip_Mnt cd11402
basic Helix-Loop-Helix-zipper (bHLHzip) domain found in Max-binding protein Mnt and similar ...
9-36 4.67e-11

basic Helix-Loop-Helix-zipper (bHLHzip) domain found in Max-binding protein Mnt and similar proteins; Mnt, also termed Class D basic helix-loop-helix protein 3 (bHLHd3), or Myc antagonist MNT, or protein ROX, is a bHLHZip transcriptional repressor that binds DNA as a heterodimer with MAX. It binds to the canonical E box sequence 5'-CACGTG-3' and, with higher affinity, to 5'-CACGCG-3'. Mnt has an important role as an antagonist and regulator of Myc activities and it is a potential tumor suppressor. Mnt is ubiquitously expressed. Mnt-deficient mice shown to exhibit early postnatal lethality.


Pssm-ID: 381408 [Multi-domain]  Cd Length: 77  Bit Score: 58.10  E-value: 4.67e-11
                          10        20
                  ....*....|....*....|....*...
gi 1958657253   9 QSLKRKEKEYEHEMERLAREKIATQQRL 36
Cdd:cd11402    50 QILKRKEKEYEHEMERLAREKIALQQRL 77
 
Name Accession Description Interval E-value
bHLHzip_Mnt cd11402
basic Helix-Loop-Helix-zipper (bHLHzip) domain found in Max-binding protein Mnt and similar ...
9-36 4.67e-11

basic Helix-Loop-Helix-zipper (bHLHzip) domain found in Max-binding protein Mnt and similar proteins; Mnt, also termed Class D basic helix-loop-helix protein 3 (bHLHd3), or Myc antagonist MNT, or protein ROX, is a bHLHZip transcriptional repressor that binds DNA as a heterodimer with MAX. It binds to the canonical E box sequence 5'-CACGTG-3' and, with higher affinity, to 5'-CACGCG-3'. Mnt has an important role as an antagonist and regulator of Myc activities and it is a potential tumor suppressor. Mnt is ubiquitously expressed. Mnt-deficient mice shown to exhibit early postnatal lethality.


Pssm-ID: 381408 [Multi-domain]  Cd Length: 77  Bit Score: 58.10  E-value: 4.67e-11
                          10        20
                  ....*....|....*....|....*...
gi 1958657253   9 QSLKRKEKEYEHEMERLAREKIATQQRL 36
Cdd:cd11402    50 QILKRKEKEYEHEMERLAREKIALQQRL 77
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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