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Conserved domains on  [gi|28570182|ref|NP_788265|]
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S100 calcium-binding protein, ventral prostate [Rattus norvegicus]

Protein Classification

EF-hand domain-containing protein( domain architecture ID 502)

EF-hand (EFh) domain-containing protein may be involved in binding intracellular calcium and in calcium signal transduction

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
EFh super family cl08302
EF-hand, calcium binding motif; A diverse superfamily of calcium sensors and calcium signal ...
6-85 5.05e-03

EF-hand, calcium binding motif; A diverse superfamily of calcium sensors and calcium signal modulators; most examples in this alignment model have 2 active canonical EF hands. Ca2+ binding induces a conformational change in the EF-hand motif, leading to the activation or inactivation of target proteins. EF-hands tend to occur in pairs or higher copy numbers.


The actual alignment was detected with superfamily member cd00213:

Pssm-ID: 415501 [Multi-domain]  Cd Length: 88  Bit Score: 32.85  E-value: 5.05e-03
                       10        20        30        40        50        60        70        80
               ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 28570182  6 TSTEQEIMELLMILQEFSVKKIDK--LDVQEVKRLFREELPNFLKAM-DEATKNKILND----KGKEMPFDEIWDMIGRM 78
Cdd:cd00213  1 SELEKAIETIIDVFHKYSGKEGDKdtLSKKELKELLETELPNFLKNQkDPEAVDKIMKDldvnKDGKVDFQEFLVLIGKL 80

               ....*..
gi 28570182 79 ALEYRKK 85
Cdd:cd00213 81 AVACHEF 87
 
Name Accession Description Interval E-value
S-100 cd00213
S-100: S-100 domain, which represents the largest family within the superfamily of proteins ...
6-85 5.05e-03

S-100: S-100 domain, which represents the largest family within the superfamily of proteins carrying the Ca-binding EF-hand motif. Note that this S-100 hierarchy contains only S-100 EF-hand domains, other EF-hands have been modeled separately. S100 proteins are expressed exclusively in vertebrates, and are implicated in intracellular and extracellular regulatory activities. Intracellularly, S100 proteins act as Ca-signaling or Ca-buffering proteins. The most unusual characteristic of certain S100 proteins is their occurrence in extracellular space, where they act in a cytokine-like manner through RAGE, the receptor for advanced glycation products. Structural data suggest that many S100 members exist within cells as homo- or heterodimers and even oligomers; oligomerization contributes to their functional diversification. Upon binding calcium, most S100 proteins change conformation to a more open structure exposing a hydrophobic cleft. This hydrophobic surface represents the interaction site of S100 proteins with their target proteins. There is experimental evidence showing that many S100 proteins have multiple binding partners with diverse mode of interaction with different targets. In addition to S100 proteins (such as S100A1,-3,-4,-6,-7,-10,-11,and -13), this group includes the ''fused'' gene family, a group of calcium binding S100-related proteins. The ''fused'' gene family includes multifunctional epidermal differentiation proteins - profilaggrin, trichohyalin, repetin, hornerin, and cornulin; functionally these proteins are associated with keratin intermediate filaments and partially crosslinked to the cell envelope. These ''fused'' gene proteins contain N-terminal sequence with two Ca-binding EF-hands motif, which may be associated with calcium signaling in epidermal cells and autoprocessing in a calcium-dependent manner. In contrast to S100 proteins, "fused" gene family proteins contain an extraordinary high number of almost perfect peptide repeats with regular array of polar and charged residues similar to many known cell envelope proteins.


Pssm-ID: 238131 [Multi-domain]  Cd Length: 88  Bit Score: 32.85  E-value: 5.05e-03
                       10        20        30        40        50        60        70        80
               ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 28570182  6 TSTEQEIMELLMILQEFSVKKIDK--LDVQEVKRLFREELPNFLKAM-DEATKNKILND----KGKEMPFDEIWDMIGRM 78
Cdd:cd00213  1 SELEKAIETIIDVFHKYSGKEGDKdtLSKKELKELLETELPNFLKNQkDPEAVDKIMKDldvnKDGKVDFQEFLVLIGKL 80

               ....*..
gi 28570182 79 ALEYRKK 85
Cdd:cd00213 81 AVACHEF 87
 
Name Accession Description Interval E-value
S-100 cd00213
S-100: S-100 domain, which represents the largest family within the superfamily of proteins ...
6-85 5.05e-03

S-100: S-100 domain, which represents the largest family within the superfamily of proteins carrying the Ca-binding EF-hand motif. Note that this S-100 hierarchy contains only S-100 EF-hand domains, other EF-hands have been modeled separately. S100 proteins are expressed exclusively in vertebrates, and are implicated in intracellular and extracellular regulatory activities. Intracellularly, S100 proteins act as Ca-signaling or Ca-buffering proteins. The most unusual characteristic of certain S100 proteins is their occurrence in extracellular space, where they act in a cytokine-like manner through RAGE, the receptor for advanced glycation products. Structural data suggest that many S100 members exist within cells as homo- or heterodimers and even oligomers; oligomerization contributes to their functional diversification. Upon binding calcium, most S100 proteins change conformation to a more open structure exposing a hydrophobic cleft. This hydrophobic surface represents the interaction site of S100 proteins with their target proteins. There is experimental evidence showing that many S100 proteins have multiple binding partners with diverse mode of interaction with different targets. In addition to S100 proteins (such as S100A1,-3,-4,-6,-7,-10,-11,and -13), this group includes the ''fused'' gene family, a group of calcium binding S100-related proteins. The ''fused'' gene family includes multifunctional epidermal differentiation proteins - profilaggrin, trichohyalin, repetin, hornerin, and cornulin; functionally these proteins are associated with keratin intermediate filaments and partially crosslinked to the cell envelope. These ''fused'' gene proteins contain N-terminal sequence with two Ca-binding EF-hands motif, which may be associated with calcium signaling in epidermal cells and autoprocessing in a calcium-dependent manner. In contrast to S100 proteins, "fused" gene family proteins contain an extraordinary high number of almost perfect peptide repeats with regular array of polar and charged residues similar to many known cell envelope proteins.


Pssm-ID: 238131 [Multi-domain]  Cd Length: 88  Bit Score: 32.85  E-value: 5.05e-03
                       10        20        30        40        50        60        70        80
               ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 28570182  6 TSTEQEIMELLMILQEFSVKKIDK--LDVQEVKRLFREELPNFLKAM-DEATKNKILND----KGKEMPFDEIWDMIGRM 78
Cdd:cd00213  1 SELEKAIETIIDVFHKYSGKEGDKdtLSKKELKELLETELPNFLKNQkDPEAVDKIMKDldvnKDGKVDFQEFLVLIGKL 80

               ....*..
gi 28570182 79 ALEYRKK 85
Cdd:cd00213 81 AVACHEF 87
 
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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