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Conserved domains on  [gi|3122325|sp|Q29614|]
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RecName: Full=Beta-lactoglobulin; Short=Beta-LG; Flags: Precursor

Protein Classification

lipocalin/fatty-acid binding family protein( domain architecture ID 14443748)

lipocalin/fatty-acid binding family protein such as lipocalins, which are transporters for small hydrophobic molecules, including lipids, steroid hormones, bilins, and retinoids

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
lipocalin_beta-LG-like cd19416
beta-lactoglobulin and similar proteins; Beta-Lactoglobulin (beta-LG) is the major whey ...
21-174 1.94e-67

beta-lactoglobulin and similar proteins; Beta-Lactoglobulin (beta-LG) is the major whey protein of ruminant species and present in the milk of many other species, with a notable exception of human. It is the major allergen of bovine milk. Beta-LG has been shown to bind hydrophobic ligands such as curcumin, vitamin E or fatty acids, or hydrophilic such as vitamin B9. This group also includes human glycodelin (also known as placental protein 14, pregnancy-associated endometrial alpha-2 globulin, and progestagen-associated endometrial protein) which is involved in crucial biological processes such as reproduction and immune reaction. Four glycoforms of glycodelin have been identified in reproductive tissue that differ in glycosylation and biological activity. This group belongs to the lipocalin/cytosolic fatty-acid binding protein family which have a large beta-barrel ligand-binding cavity. Lipocalins are mainly low molecular weight extracellular proteins that bind principally small hydrophobic ligands, and form covalent or non-covalent complexes with soluble macromolecules, as well as membrane bound-receptors. They participate in processes such as ligand transport, modulation of cell growth and metabolism, regulation of immune response, smell reception, tissue development and animal behavior. Cytosolic fatty-acid binding proteins, also bind hydrophobic ligands in a non-covalent, reversible manner, and have been implicated in intracellular uptake, transport and storage of hydrophobic ligands, regulation of lipid metabolism and sequestration of excess toxic fatty acids, as well as in signaling, gene expression, inflammation, cell growth and proliferation, and cancer development.


:

Pssm-ID: 381191  Cd Length: 160  Bit Score: 202.38  E-value: 1.94e-67
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 3122325   21 NIRSKNDLGVEKFVGSWYLREAAKTMEFSIP----LFDMDIKEVNLTPEGNLELVLLEKAD-RCVEKKLLLKKTQKPTEF 95
Cdd:cd19416   1 VTQTMKDLDVQKVAGTWYSLAMAASDISLLDaqsaPLRVYIEELKPTPEGNLEIVLQKWENgRCAEKKLLAEKTKIPAVF 80
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 3122325   96 EIYISSEsasYTFSVMETDYDSYFLFCLYNIS-DREKMACAHYVRRIE-ENKGMNEFKKILRTLAMPYTVI--EVRTRDM 171
Cdd:cd19416  81 KINALNE---NKVLVLDTDYDSYLLFCMENSAePEQSLACQCLVRTLEvDNEAMEKFDKALKTLPMHIRLLfnPTQLEEQ 157

                ...
gi 3122325  172 CHV 174
Cdd:cd19416 158 CHV 160
 
Name Accession Description Interval E-value
lipocalin_beta-LG-like cd19416
beta-lactoglobulin and similar proteins; Beta-Lactoglobulin (beta-LG) is the major whey ...
21-174 1.94e-67

beta-lactoglobulin and similar proteins; Beta-Lactoglobulin (beta-LG) is the major whey protein of ruminant species and present in the milk of many other species, with a notable exception of human. It is the major allergen of bovine milk. Beta-LG has been shown to bind hydrophobic ligands such as curcumin, vitamin E or fatty acids, or hydrophilic such as vitamin B9. This group also includes human glycodelin (also known as placental protein 14, pregnancy-associated endometrial alpha-2 globulin, and progestagen-associated endometrial protein) which is involved in crucial biological processes such as reproduction and immune reaction. Four glycoforms of glycodelin have been identified in reproductive tissue that differ in glycosylation and biological activity. This group belongs to the lipocalin/cytosolic fatty-acid binding protein family which have a large beta-barrel ligand-binding cavity. Lipocalins are mainly low molecular weight extracellular proteins that bind principally small hydrophobic ligands, and form covalent or non-covalent complexes with soluble macromolecules, as well as membrane bound-receptors. They participate in processes such as ligand transport, modulation of cell growth and metabolism, regulation of immune response, smell reception, tissue development and animal behavior. Cytosolic fatty-acid binding proteins, also bind hydrophobic ligands in a non-covalent, reversible manner, and have been implicated in intracellular uptake, transport and storage of hydrophobic ligands, regulation of lipid metabolism and sequestration of excess toxic fatty acids, as well as in signaling, gene expression, inflammation, cell growth and proliferation, and cancer development.


Pssm-ID: 381191  Cd Length: 160  Bit Score: 202.38  E-value: 1.94e-67
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 3122325   21 NIRSKNDLGVEKFVGSWYLREAAKTMEFSIP----LFDMDIKEVNLTPEGNLELVLLEKAD-RCVEKKLLLKKTQKPTEF 95
Cdd:cd19416   1 VTQTMKDLDVQKVAGTWYSLAMAASDISLLDaqsaPLRVYIEELKPTPEGNLEIVLQKWENgRCAEKKLLAEKTKIPAVF 80
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 3122325   96 EIYISSEsasYTFSVMETDYDSYFLFCLYNIS-DREKMACAHYVRRIE-ENKGMNEFKKILRTLAMPYTVI--EVRTRDM 171
Cdd:cd19416  81 KINALNE---NKVLVLDTDYDSYLLFCMENSAePEQSLACQCLVRTLEvDNEAMEKFDKALKTLPMHIRLLfnPTQLEEQ 157

                ...
gi 3122325  172 CHV 174
Cdd:cd19416 158 CHV 160
Lipocalin pfam00061
Lipocalin / cytosolic fatty-acid binding protein family; Lipocalins are transporters for small ...
34-164 8.46e-14

Lipocalin / cytosolic fatty-acid binding protein family; Lipocalins are transporters for small hydrophobic molecules, such as lipids, steroid hormones, bilins, and retinoids. The family also encompasses the enzyme prostaglandin D synthase (EC:5.3.99.2). Alignment subsumes both the lipocalin and fatty acid binding protein signatures from PROSITE. This is supported on structural and functional grounds. The structure is an eight-stranded beta barrel.


Pssm-ID: 395015  Cd Length: 143  Bit Score: 64.77  E-value: 8.46e-14
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 3122325     34 VGSWYLREAAKTMEF--SIPLFDMDIKEVNLTPEGNLELVLLEKA-DRCVEKKLLLKKTQKPTEFEIYISSESASYTFSV 110
Cdd:pfam00061   1 SGKWYLIASANFNELeeEMKALGVGFATIKVLENGNLPVTEITKEgGKCKTVSVTFKKTEEPGKLGVEFDEYAGGRKVKV 80
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 3122325    111 METDYDSYFLFCLYNISD-REKMACAHYVRRIEENKGMNE-FKKILRTLAMPYTVI 164
Cdd:pfam00061  81 LTTDYDNYLIFYQKGDKDgKTTIVRELYGRDPELSPELLEkFKKFLKELGIDEENI 136
 
Name Accession Description Interval E-value
lipocalin_beta-LG-like cd19416
beta-lactoglobulin and similar proteins; Beta-Lactoglobulin (beta-LG) is the major whey ...
21-174 1.94e-67

beta-lactoglobulin and similar proteins; Beta-Lactoglobulin (beta-LG) is the major whey protein of ruminant species and present in the milk of many other species, with a notable exception of human. It is the major allergen of bovine milk. Beta-LG has been shown to bind hydrophobic ligands such as curcumin, vitamin E or fatty acids, or hydrophilic such as vitamin B9. This group also includes human glycodelin (also known as placental protein 14, pregnancy-associated endometrial alpha-2 globulin, and progestagen-associated endometrial protein) which is involved in crucial biological processes such as reproduction and immune reaction. Four glycoforms of glycodelin have been identified in reproductive tissue that differ in glycosylation and biological activity. This group belongs to the lipocalin/cytosolic fatty-acid binding protein family which have a large beta-barrel ligand-binding cavity. Lipocalins are mainly low molecular weight extracellular proteins that bind principally small hydrophobic ligands, and form covalent or non-covalent complexes with soluble macromolecules, as well as membrane bound-receptors. They participate in processes such as ligand transport, modulation of cell growth and metabolism, regulation of immune response, smell reception, tissue development and animal behavior. Cytosolic fatty-acid binding proteins, also bind hydrophobic ligands in a non-covalent, reversible manner, and have been implicated in intracellular uptake, transport and storage of hydrophobic ligands, regulation of lipid metabolism and sequestration of excess toxic fatty acids, as well as in signaling, gene expression, inflammation, cell growth and proliferation, and cancer development.


Pssm-ID: 381191  Cd Length: 160  Bit Score: 202.38  E-value: 1.94e-67
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 3122325   21 NIRSKNDLGVEKFVGSWYLREAAKTMEFSIP----LFDMDIKEVNLTPEGNLELVLLEKAD-RCVEKKLLLKKTQKPTEF 95
Cdd:cd19416   1 VTQTMKDLDVQKVAGTWYSLAMAASDISLLDaqsaPLRVYIEELKPTPEGNLEIVLQKWENgRCAEKKLLAEKTKIPAVF 80
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 3122325   96 EIYISSEsasYTFSVMETDYDSYFLFCLYNIS-DREKMACAHYVRRIE-ENKGMNEFKKILRTLAMPYTVI--EVRTRDM 171
Cdd:cd19416  81 KINALNE---NKVLVLDTDYDSYLLFCMENSAePEQSLACQCLVRTLEvDNEAMEKFDKALKTLPMHIRLLfnPTQLEEQ 157

                ...
gi 3122325  172 CHV 174
Cdd:cd19416 158 CHV 160
Lipocalin pfam00061
Lipocalin / cytosolic fatty-acid binding protein family; Lipocalins are transporters for small ...
34-164 8.46e-14

Lipocalin / cytosolic fatty-acid binding protein family; Lipocalins are transporters for small hydrophobic molecules, such as lipids, steroid hormones, bilins, and retinoids. The family also encompasses the enzyme prostaglandin D synthase (EC:5.3.99.2). Alignment subsumes both the lipocalin and fatty acid binding protein signatures from PROSITE. This is supported on structural and functional grounds. The structure is an eight-stranded beta barrel.


Pssm-ID: 395015  Cd Length: 143  Bit Score: 64.77  E-value: 8.46e-14
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 3122325     34 VGSWYLREAAKTMEF--SIPLFDMDIKEVNLTPEGNLELVLLEKA-DRCVEKKLLLKKTQKPTEFEIYISSESASYTFSV 110
Cdd:pfam00061   1 SGKWYLIASANFNELeeEMKALGVGFATIKVLENGNLPVTEITKEgGKCKTVSVTFKKTEEPGKLGVEFDEYAGGRKVKV 80
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 3122325    111 METDYDSYFLFCLYNISD-REKMACAHYVRRIEENKGMNE-FKKILRTLAMPYTVI 164
Cdd:pfam00061  81 LTTDYDNYLIFYQKGDKDgKTTIVRELYGRDPELSPELLEkFKKFLKELGIDEENI 136
lipocalin_FABP cd00301
lipocalin/cytosolic fatty acid-binding protein family; Lipocalins are diverse, mainly low ...
32-125 1.44e-06

lipocalin/cytosolic fatty acid-binding protein family; Lipocalins are diverse, mainly low molecular weight extracellular proteins that bind principally small hydrophobic ligands, and form covalent or non-covalent complexes with soluble macromolecules as well as membrane bound-receptors. They have a large beta-barrel ligand-binding cavity. Members include retinol-binding protein, retinoic acid-binding protein, complement protein C8 gamma, Can f 2, apolipoprotein D, extracellular fatty acid-binding protein, beta-lactoglobulin, oderant-binding protein, and bacterial lipocalin Blc. Lipocalins are involved in many important processes such as ligand transport, modulation of cell growth and metabolism, regulation of immune response, smell reception, tissue development and animal behavior. Cytosolic fatty acid-binding proteins also bind hydrophobic ligands in a non-covalent, reversible manner, and are involved in protection and shuttling of fatty acids within the cell, and in acquisition and removal of fatty acids from intracellular sites.


Pssm-ID: 381182  Cd Length: 109  Bit Score: 44.84  E-value: 1.44e-06
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 3122325   32 KFVGSWYLREAAKTMEFSiPLFDMDIKEVNLTPEGNLELVLLEK-ADRCVEKKLLLKKTQKPTEFEIYISSESASYTFSV 110
Cdd:cd00301   1 KFSGKWYEVASASNAPEE-DEGKCTTAEYTLEGNGNLKVTNSFVrDGVCKSITGTLKKTDGPGKFTVTYPGYTGKNELYV 79
                        90
                ....*....|....*
gi 3122325  111 METDYDSYFLFCLYN 125
Cdd:cd00301  80 LSTDYDNYAIVYSCK 94
lipocalin_L-PGDS cd19419
lipocalin-type prostaglandin D synthase; Lipocalin-type prostaglandin D synthase (L-PGDS; EC:5. ...
27-121 7.30e-04

lipocalin-type prostaglandin D synthase; Lipocalin-type prostaglandin D synthase (L-PGDS; EC:5.3.99.2) is a secreted enzyme and the second most abundant protein in human cerebrospinal fluid. L-PGDS acts as both, an enzyme and as a lipid transporter, converting prostaglandin H2 to prostaglandin D2 and serving as a carrier for hydrophobic ligands including retinoids, hemoglobin metabolites, thyroid hormones, gangliosides, and fatty acids. L-PGDS belongs to the lipocalin/cytosolic fatty-acid binding protein family which has a large beta-barrel ligand-binding cavity. Lipocalins are mainly low molecular weight extracellular proteins that bind principally small hydrophobic ligands, and form covalent or non-covalent complexes with soluble macromolecules, as well as membrane bound-receptors. They participate in processes such as ligand transport, modulation of cell growth and metabolism, regulation of immune response, smell reception, tissue development and animal behavior. Cytosolic fatty-acid binding proteins, also bind hydrophobic ligands in a non-covalent, reversible manner, and have been implicated in intracellular uptake, transport and storage of hydrophobic ligands, regulation of lipid metabolism and sequestration of excess toxic fatty acids, as well as in signaling, gene expression, inflammation, cell growth and proliferation, and cancer development.


Pssm-ID: 381194  Cd Length: 158  Bit Score: 38.10  E-value: 7.30e-04
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 3122325   27 DLGVEKFVGSWYLREAAKTMEFSIP---LFDMDIKEVNLTPEGNLELVLLE-KADRCVEKKLLLKKTQKPTEFEIYISSE 102
Cdd:cd19419   4 DFDLDKFAGRWYSVGLASNSNWFVEkkaKLKMCTTVVAPTTDGNLNLTMTFlKKNGCETRTYLYEKTEQPGRFTYKSPRW 83
                        90
                ....*....|....*....
gi 3122325  103 SASYTFSVMETDYDSYFLF 121
Cdd:cd19419  84 GSDHDVRVVETNYDEYALV 102
lipocalin_15-like cd19422
lipocalin 15 and similar proteins, such as chicken CALbeta; This subfamily includes ...
32-118 5.51e-03

lipocalin 15 and similar proteins, such as chicken CALbeta; This subfamily includes uncharacterized human lipocalin 15, and chicken chondrogenesis-associated lipocalin (CAL) beta which is associated with chondrogenesis and inflammation. It belongs to the lipocalin/cytosolic fatty-acid binding protein family which have a large beta-barrel ligand-binding cavity. Lipocalins are mainly low molecular weight extracellular proteins that bind principally small hydrophobic ligands, and form covalent or non-covalent complexes with soluble macromolecules, as well as membrane bound-receptors. They participate in processes such as ligand transport, modulation of cell growth and metabolism, regulation of immune response, smell reception, tissue development and animal behavior. Cytosolic fatty-acid binding proteins, also bind hydrophobic ligands in a non-covalent, reversible manner, and have been implicated in intracellular uptake, transport and storage of hydrophobic ligands, regulation of lipid metabolism and sequestration of excess toxic fatty acids, as well as in signaling, gene expression, inflammation, cell growth and proliferation, and cancer development.


Pssm-ID: 381197  Cd Length: 143  Bit Score: 35.61  E-value: 5.51e-03
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 3122325   32 KFVGSWYLREAAKTMEFSIPLFD---MDIKEVNLTPEGNLELVL-LEKADRCVEKKLLLKKTQKPTEfeiYISSESASYT 107
Cdd:cd19422   1 KFAGLWHVMAMASDCPVFLGMKDhmtSSTTAIRPTPEGDLTMHTeFPLPDGCKQIEAEFQKSGQAGH---FRVPELGKRD 77
                        90
                ....*....|.
gi 3122325  108 FSVMETDYDSY 118
Cdd:cd19422  78 LRVMDTDYSSY 88
lipocalin_Ex-FABP-like cd19439
extracellular fatty acid-binding protein; Ex-FABP (also known as siderocalin, lipocalin Q83 or ...
32-143 9.86e-03

extracellular fatty acid-binding protein; Ex-FABP (also known as siderocalin, lipocalin Q83 or protein Ch21) displays a dual ligand binding mode as it can bind siderophore and fatty acids simultaneously. ExFABP has a cavity which extends through the protein and has two separate ligand specificities, one for bacterial siderophores at one end, and other specifically binding co-purified lysophosphatidic acid (LPA), a potent cell signaling molecule, at the other end. As well as acting as an LPA "sensor", Ex-FABP is bacteriostatic, and tightly binds the 2,3-catechol-type ferric siderophores enterobactin, bacillibactin, and parabactin, associated with enteric bacteria and Gram-positive bacilli. This group belongs to the lipocalin/cytosolic fatty-acid binding protein family which have a large beta-barrel ligand-binding cavity. Lipocalins are mainly low molecular weight extracellular proteins that bind principally small hydrophobic ligands, and form covalent or non-covalent complexes with soluble macromolecules, as well as membrane bound-receptors. They participate in processes such as ligand transport, modulation of cell growth and metabolism, regulation of immune response, smell reception, tissue development and animal behavior. Cytosolic fatty-acid binding proteins, also bind hydrophobic ligands in a non-covalent, reversible manner, and have been implicated in intracellular uptake, transport and storage of hydrophobic ligands, regulation of lipid metabolism and sequestration of excess toxic fatty acids, as well as in signaling, gene expression, inflammation, cell growth and proliferation, and cancer development.


Pssm-ID: 381214  Cd Length: 142  Bit Score: 34.95  E-value: 9.86e-03
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 3122325   32 KFVGSWYLREAAKTMEFSIPLFD---MDIKEVNLTPEGNLELVL-LEKADRCVEKKLLLKKTQKPTEfEIYisSESASYT 107
Cdd:cd19439   3 ELAGKWYLVALASNTDFFLREKGkmkMMMARISFLGEDELLVSYaFPSPGGCRKWETTFKKTSDDGE-VYY--SEEARKT 79
                        90       100       110
                ....*....|....*....|....*....|....*.
gi 3122325  108 FSVMETDYDSYFLFCLYNISDREKMACAHYVRRIEE 143
Cdd:cd19439  80 VEVLDTDYKSYAVIYATRVKDGRTLHMMRLYSRSQE 115
 
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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