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Conserved domains on  [gi|578817469|ref|XP_006717172|]
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spermatogenesis- and oogenesis-specific basic helix-loop-helix-containing protein 1 isoform X2 [Homo sapiens]

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

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 ...
1-43 1.55e-17

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 cd18908:

Pssm-ID: 469605 [Multi-domain]  Cd Length: 59  Bit Score: 75.45  E-value: 1.55e-17
                         10        20        30        40
                 ....*....|....*....|....*....|....*....|...
gi 578817469   1 MSLSCERLRALLPQFDGRREDMASVLEMSVQFLRLASALGPSQ 43
Cdd:cd18908   17 IKSSCDQLRDLLPYIKGRKLDMASVLEMTVKYIRYIQERIPPE 59
 
Name Accession Description Interval E-value
bHLH_SOHLH1_2 cd18908
basic helix-loop-helix (bHLH) domain found in the spermatogenesis- and oogenesis-specific ...
1-43 1.55e-17

basic helix-loop-helix (bHLH) domain found in the spermatogenesis- and oogenesis-specific basic helix-loop-helix-containing protein (SOHLH) family; The SOHLH family includes two bHLH transcription factors, SOHLH1 and SOHLH2. They are specifically in spermatogonia and oocytes and essential for early spermatogonial and oocyte differentiation.


Pssm-ID: 381478 [Multi-domain]  Cd Length: 59  Bit Score: 75.45  E-value: 1.55e-17
                         10        20        30        40
                 ....*....|....*....|....*....|....*....|...
gi 578817469   1 MSLSCERLRALLPQFDGRREDMASVLEMSVQFLRLASALGPSQ 43
Cdd:cd18908   17 IKSSCDQLRDLLPYIKGRKLDMASVLEMTVKYIRYIQERIPPE 59
 
Name Accession Description Interval E-value
bHLH_SOHLH1_2 cd18908
basic helix-loop-helix (bHLH) domain found in the spermatogenesis- and oogenesis-specific ...
1-43 1.55e-17

basic helix-loop-helix (bHLH) domain found in the spermatogenesis- and oogenesis-specific basic helix-loop-helix-containing protein (SOHLH) family; The SOHLH family includes two bHLH transcription factors, SOHLH1 and SOHLH2. They are specifically in spermatogonia and oocytes and essential for early spermatogonial and oocyte differentiation.


Pssm-ID: 381478 [Multi-domain]  Cd Length: 59  Bit Score: 75.45  E-value: 1.55e-17
                         10        20        30        40
                 ....*....|....*....|....*....|....*....|...
gi 578817469   1 MSLSCERLRALLPQFDGRREDMASVLEMSVQFLRLASALGPSQ 43
Cdd:cd18908   17 IKSSCDQLRDLLPYIKGRKLDMASVLEMTVKYIRYIQERIPPE 59
bHLH_SOHLH_like cd19683
basic helix-loop-helix (bHLH) domain found in the spermatogenesis- and oogenesis-specific ...
1-42 1.17e-03

basic helix-loop-helix (bHLH) domain found in the spermatogenesis- and oogenesis-specific basic helix-loop-helix-containing protein (SOHLH) family and similar proteins; The SOHLH family includes two bHLH transcription factors, SOHLH1 and SOHLH2. They are specifically in spermatogonia and oocytes and essential for early spermatogonial and oocyte differentiation. The family also includes transcription factor-like 5 protein (TCFL5) and similar proteins. TCFL5, also termed Cha transcription factor, or HPV-16 E2-binding protein 1 (E2BP-1), is a bHLH transcription factor that plays a crucial role in spermatogenesis. It regulates cell proliferation or differentiation of cells through binding to a specific DNA sequence like other bHLH molecules.


Pssm-ID: 381526  Cd Length: 58  Bit Score: 36.56  E-value: 1.17e-03
                         10        20        30        40
                 ....*....|....*....|....*....|....*....|...
gi 578817469   1 MSLSCERLRALLPqFDGRREDMASVLEMSVQFLR-LASALGPS 42
Cdd:cd19683   17 IKIACDQLRKLVP-GCSRKTDKATVFEFTVAYIKfLREKLGDS 58
 
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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