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Conserved domains on  [gi|24585552|ref|NP_610075|]
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microsomal triacylglycerol transfer protein [Drosophila melanogaster]

Protein Classification

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
LPD_N smart00638
Lipoprotein N-terminal Domain;
38-567 1.80e-75

Lipoprotein N-terminal Domain;


:

Pssm-ID: 214755 [Multi-domain]  Cd Length: 574  Bit Score: 257.65  E-value: 1.80e-75
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552     38 FKLQNQVILQELGRDSS------SAETSYTFETDLKINSVWSGD-EDQLLEVFISGS---------KVDASGKARSITRI 101
Cdd:smart00638   1 FQPGKTYVYKYEGRTLSglpevgSQYSGLKIRAKVEIQAVSPNTlVLKLSDPKLAEYngiwpkepfEPKLKLKELLLEQL 80
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552    102 PdRPFYISLVRGQPDKVIAHTSKDQSLLNLERGIASLLQLRLDASQE----EELDVSGLCRVSYNVKSSTKVEKTKR-DC 176
Cdd:smart00638  81 P-FPIRFEYNGGVVGEICVPEDDPTWSLNIKKGILSLLQVDLKKSQNvyklQETDVTGDCETLYTVSELPKAELQIQvTK 159
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552    177 SLWDLRVNYNPEEALGvtQQAQETVFYELSSEGTLLHAESQENHRLN--------LAAKPDVGSFVKSSLILQHVSQGSE 248
Cdd:smart00638 160 TKNLNNCQQREAYHFG--LAAYAEKCPECTNRMGNLKSTSSVNYIIKngklgvliIEAVVTEEKVVVSPNIYNGQKAIVE 237
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552    249 EVKQLQLGSLDK------AIQSLLEWYRVFELESDVD-GMISAIKEQTLEDQLKASLTELQSADVG--KSSLALAYVKLI 319
Cdd:smart00638 238 SRQKLTLKSVKKtpssppPGEPRNRGSLVYEFESTNQqLPIRLLKAPSNEVQIVEVLKHLVQDIASdvQEPAAAKFLRLV 317
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552    320 PLARITRQEQFEDLLTEHAEVLPQLVDLLGAVQTFDAHNATFGFLYKESET-TSEQLDLLEKYLQSLAVATHPDRKIVEH 398
Cdd:smart00638 318 RLLRTLSEEQLEQLWRQLYEKKKKARRIFLDAVAQAGTPPALKFIKQWIKNkKITPLEAAQLLAVLPHTARYPTEEILKA 397
                          410       420       430       440       450       460       470       480
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552    399 LFGLLEQESIKKHLKLRESVIQTVATLTRQSGLD-------VEDPLLKEVRSYLLQGL---TSKEPTLYIRALQNLQDPA 468
Cdd:smart00638 398 LFELAESPEVQKQPYLRESALLAYGSLVRRYCVNtpscpdfVLEELLKYLHELLQQAVskgDEEEIQLYLKALGNAGHPS 477
                          490       500       510       520       530       540       550       560
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552    469 TIEALLEHAQtGEAPNLSVAALQALKAFPLGSFNSSHRLQFESIFYQRKRRFDSSARTLALDIILSLRPTQEQLGNFLDY 548
Cdd:smart00638 478 SIKVLEPYLE-GAEPLSTFIRLAAILALRNLAKRDPRKVQEVLLPIYLNRAEPPEVRMAAVLVLMETKPSVALLQRIAEL 556
                          570
                   ....*....|....*....
gi 24585552    549 LASnDRQFEIKTYVLQKLR 567
Cdd:smart00638 557 LNK-EPNLQVASFVYSHIR 574
Vit_open_b-sht super family cl11721
Vitellinogen, open beta-sheet; This entry represents the open beta-sheet domain found in ...
695-883 1.61e-13

Vitellinogen, open beta-sheet; This entry represents the open beta-sheet domain found in vitellinogen, which generally corresponds to a domain within the lipovitellin-1 peptide product. This domain adopts a structure consisting of several large open beta-sheets.


The actual alignment was detected with superfamily member pfam19444:

Pssm-ID: 472237  Cd Length: 258  Bit Score: 71.34  E-value: 1.61e-13
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552   695 QGAQLRPLVFFSGQTELMGHVWGGSAsDSTPAYQATTLSQDNEHYIILTSGATLHWRVLGARSVDLNGKVGFSLWNRNAQ 774
Cdd:pfam19444  69 HASQVRPVTFFQGYSDLMSKMFSATG-EPMSVVKGLILLIDHSQVIQLQSGLKASVEFQGGLAIDISGGMEFSLWYRESK 147
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552   775 TEIqQNTGSAVL-GHLAVGFTYAKLVQDFSITHEpklslnADLDFYSGIK-------LCMQLQRPEQLLKQTNVRSVFLQ 846
Cdd:pfam19444 148 TNV-NNRGALVItGNITVDSSFVKAGVEVSFETE------ASLDFISTVQfseypflVCMQMDKTTFPFRQYVTKYESLP 220
                         170       180       190
                  ....*....|....*....|....*....|....*..
gi 24585552   847 SvDRPYAKhvRSTLSHKTAGCTFALNQKNNEMCNLIF 883
Cdd:pfam19444 221 S-GISYTS--RKGRKQLVPGSEFPLHQENSEMCKKVF 254
 
Name Accession Description Interval E-value
LPD_N smart00638
Lipoprotein N-terminal Domain;
38-567 1.80e-75

Lipoprotein N-terminal Domain;


Pssm-ID: 214755 [Multi-domain]  Cd Length: 574  Bit Score: 257.65  E-value: 1.80e-75
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552     38 FKLQNQVILQELGRDSS------SAETSYTFETDLKINSVWSGD-EDQLLEVFISGS---------KVDASGKARSITRI 101
Cdd:smart00638   1 FQPGKTYVYKYEGRTLSglpevgSQYSGLKIRAKVEIQAVSPNTlVLKLSDPKLAEYngiwpkepfEPKLKLKELLLEQL 80
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552    102 PdRPFYISLVRGQPDKVIAHTSKDQSLLNLERGIASLLQLRLDASQE----EELDVSGLCRVSYNVKSSTKVEKTKR-DC 176
Cdd:smart00638  81 P-FPIRFEYNGGVVGEICVPEDDPTWSLNIKKGILSLLQVDLKKSQNvyklQETDVTGDCETLYTVSELPKAELQIQvTK 159
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552    177 SLWDLRVNYNPEEALGvtQQAQETVFYELSSEGTLLHAESQENHRLN--------LAAKPDVGSFVKSSLILQHVSQGSE 248
Cdd:smart00638 160 TKNLNNCQQREAYHFG--LAAYAEKCPECTNRMGNLKSTSSVNYIIKngklgvliIEAVVTEEKVVVSPNIYNGQKAIVE 237
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552    249 EVKQLQLGSLDK------AIQSLLEWYRVFELESDVD-GMISAIKEQTLEDQLKASLTELQSADVG--KSSLALAYVKLI 319
Cdd:smart00638 238 SRQKLTLKSVKKtpssppPGEPRNRGSLVYEFESTNQqLPIRLLKAPSNEVQIVEVLKHLVQDIASdvQEPAAAKFLRLV 317
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552    320 PLARITRQEQFEDLLTEHAEVLPQLVDLLGAVQTFDAHNATFGFLYKESET-TSEQLDLLEKYLQSLAVATHPDRKIVEH 398
Cdd:smart00638 318 RLLRTLSEEQLEQLWRQLYEKKKKARRIFLDAVAQAGTPPALKFIKQWIKNkKITPLEAAQLLAVLPHTARYPTEEILKA 397
                          410       420       430       440       450       460       470       480
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552    399 LFGLLEQESIKKHLKLRESVIQTVATLTRQSGLD-------VEDPLLKEVRSYLLQGL---TSKEPTLYIRALQNLQDPA 468
Cdd:smart00638 398 LFELAESPEVQKQPYLRESALLAYGSLVRRYCVNtpscpdfVLEELLKYLHELLQQAVskgDEEEIQLYLKALGNAGHPS 477
                          490       500       510       520       530       540       550       560
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552    469 TIEALLEHAQtGEAPNLSVAALQALKAFPLGSFNSSHRLQFESIFYQRKRRFDSSARTLALDIILSLRPTQEQLGNFLDY 548
Cdd:smart00638 478 SIKVLEPYLE-GAEPLSTFIRLAAILALRNLAKRDPRKVQEVLLPIYLNRAEPPEVRMAAVLVLMETKPSVALLQRIAEL 556
                          570
                   ....*....|....*....
gi 24585552    549 LASnDRQFEIKTYVLQKLR 567
Cdd:smart00638 557 LNK-EPNLQVASFVYSHIR 574
Vitellogenin_N pfam01347
Lipoprotein amino terminal region; This family contains regions from: Vitellogenin, Microsomal ...
103-494 1.83e-19

Lipoprotein amino terminal region; This family contains regions from: Vitellogenin, Microsomal triglyceride transfer protein and apolipoprotein B-100. These proteins are all involved in lipid transport. This family contains the LV1n chain from lipovitellin, that contains two structural domains.


Pssm-ID: 460170 [Multi-domain]  Cd Length: 582  Bit Score: 93.11  E-value: 1.83e-19
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552   103 DRPFYISLVRGQPDKVIAHTSKDQSLLNLERGIASLLQLRLDASQEE-------ELDVSGLCRVSYNVKSSTK-----VE 170
Cdd:pfam01347  81 SKPFKFEYSNGRVGELYVPKDVPTWSLNIKRGILSLLQVDLKGKEKTqgvyklqETTVTGDCETLYTVSEDKEgdliiVT 160
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552   171 KTK-----RDCSLWDLRVNYNPEEA----LGVTQQAQETVFYELSSE---GTLLHAESQENH--RLNLAAKPDVGSFVKS 236
Cdd:pfam01347 161 KTKnlnncQERVSYRYGLAYAEWCPgcnqMGKFLSRTSVSTYILKGKlkgFLIQSAETTEKVqvSPFLENNQKAKVESRQ 240
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552   237 SLILQHVSQGSEEVKQLQlgSLDKaIQSLLEWYRVFELESDVDGMISAIKEQTLED---QLKASLTELQ---SADVGKSS 310
Cdd:pfam01347 241 NLTLEEVEKTPGLIPPPA--NPRH-RGSLVYEYETEQASLSQELLQSPSSLSSVPNaveLIKEILKHLVqnpSNMVKEDA 317
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552   311 LALaYVKLIPLARITRQEQFEDLLT------EHAEVLPQLVDLLGAVQTFDAHNATFGFLyKESETTSEQLDLLekyLQS 384
Cdd:pfam01347 318 LAK-FLILVRLLRTASEEQLEQIWRqlyqnkPKYRRWPAFLDAVAQAGTGPALKFIKQWI-KSKKITGLEAAQV---LAV 392
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552   385 LAVATHPDRKIVEHLFGLLEQESIKKHLKLRESVIQTVATLTRQ------SGLDVEDPLLKEVRSYLLQGLT---SKEPT 455
Cdd:pfam01347 393 LPHARYPTEEYMKALFELAESPEVKNQPYLNTSALLAYGSLVRKycvnnpSCPREFEEYLPPLAQKLKEAVSkgdSEKIQ 472
                         410       420       430       440
                  ....*....|....*....|....*....|....*....|.
gi 24585552   456 LYIRALQNLQDPATIEALLEHAQTGEAPNLSV--AALQALK 494
Cdd:pfam01347 473 LYLKALGNAGHPESLKVLEKYLEGAEGLSTRVrvAAVQALR 513
MTP_lip_bd pfam19444
MTP large subunit, lipid-binding domain; Microsomal triglyceride transfer protein (MTP) is ...
695-883 1.61e-13

MTP large subunit, lipid-binding domain; Microsomal triglyceride transfer protein (MTP) is essential in lipid metabolism, especially in the biogenesis of very low-density lipoproteins and chylomicrons via the transfer of neutral lipids and the assembly of apoB-containing lipoproteins. It is a heterodimer consisting of a large MTP alpha-subunit and a protein disulfide isomerase (PDI) beta-subunit. The MTP large subunit has and N-terminal beta-barrel domain, a central alpha-helical domain and a C-terminal 2-beta-sheet domain. This is the highly conserved MTP C-terminal domain involved in lipid-binding and transfer activity, with preference of neutral 3 chain-containing lipids. The beta-sheets are named A and C and form a sandwich comprising the lipid-binding site between them. Half of the A-sheet interacts with the beta-barrel. This domain also interacts with a' and b' domains of PDI.


Pssm-ID: 466086  Cd Length: 258  Bit Score: 71.34  E-value: 1.61e-13
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552   695 QGAQLRPLVFFSGQTELMGHVWGGSAsDSTPAYQATTLSQDNEHYIILTSGATLHWRVLGARSVDLNGKVGFSLWNRNAQ 774
Cdd:pfam19444  69 HASQVRPVTFFQGYSDLMSKMFSATG-EPMSVVKGLILLIDHSQVIQLQSGLKASVEFQGGLAIDISGGMEFSLWYRESK 147
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552   775 TEIqQNTGSAVL-GHLAVGFTYAKLVQDFSITHEpklslnADLDFYSGIK-------LCMQLQRPEQLLKQTNVRSVFLQ 846
Cdd:pfam19444 148 TNV-NNRGALVItGNITVDSSFVKAGVEVSFETE------ASLDFISTVQfseypflVCMQMDKTTFPFRQYVTKYESLP 220
                         170       180       190
                  ....*....|....*....|....*....|....*..
gi 24585552   847 SvDRPYAKhvRSTLSHKTAGCTFALNQKNNEMCNLIF 883
Cdd:pfam19444 221 S-GISYTS--RKGRKQLVPGSEFPLHQENSEMCKKVF 254
 
Name Accession Description Interval E-value
LPD_N smart00638
Lipoprotein N-terminal Domain;
38-567 1.80e-75

Lipoprotein N-terminal Domain;


Pssm-ID: 214755 [Multi-domain]  Cd Length: 574  Bit Score: 257.65  E-value: 1.80e-75
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552     38 FKLQNQVILQELGRDSS------SAETSYTFETDLKINSVWSGD-EDQLLEVFISGS---------KVDASGKARSITRI 101
Cdd:smart00638   1 FQPGKTYVYKYEGRTLSglpevgSQYSGLKIRAKVEIQAVSPNTlVLKLSDPKLAEYngiwpkepfEPKLKLKELLLEQL 80
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552    102 PdRPFYISLVRGQPDKVIAHTSKDQSLLNLERGIASLLQLRLDASQE----EELDVSGLCRVSYNVKSSTKVEKTKR-DC 176
Cdd:smart00638  81 P-FPIRFEYNGGVVGEICVPEDDPTWSLNIKKGILSLLQVDLKKSQNvyklQETDVTGDCETLYTVSELPKAELQIQvTK 159
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552    177 SLWDLRVNYNPEEALGvtQQAQETVFYELSSEGTLLHAESQENHRLN--------LAAKPDVGSFVKSSLILQHVSQGSE 248
Cdd:smart00638 160 TKNLNNCQQREAYHFG--LAAYAEKCPECTNRMGNLKSTSSVNYIIKngklgvliIEAVVTEEKVVVSPNIYNGQKAIVE 237
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552    249 EVKQLQLGSLDK------AIQSLLEWYRVFELESDVD-GMISAIKEQTLEDQLKASLTELQSADVG--KSSLALAYVKLI 319
Cdd:smart00638 238 SRQKLTLKSVKKtpssppPGEPRNRGSLVYEFESTNQqLPIRLLKAPSNEVQIVEVLKHLVQDIASdvQEPAAAKFLRLV 317
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552    320 PLARITRQEQFEDLLTEHAEVLPQLVDLLGAVQTFDAHNATFGFLYKESET-TSEQLDLLEKYLQSLAVATHPDRKIVEH 398
Cdd:smart00638 318 RLLRTLSEEQLEQLWRQLYEKKKKARRIFLDAVAQAGTPPALKFIKQWIKNkKITPLEAAQLLAVLPHTARYPTEEILKA 397
                          410       420       430       440       450       460       470       480
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552    399 LFGLLEQESIKKHLKLRESVIQTVATLTRQSGLD-------VEDPLLKEVRSYLLQGL---TSKEPTLYIRALQNLQDPA 468
Cdd:smart00638 398 LFELAESPEVQKQPYLRESALLAYGSLVRRYCVNtpscpdfVLEELLKYLHELLQQAVskgDEEEIQLYLKALGNAGHPS 477
                          490       500       510       520       530       540       550       560
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552    469 TIEALLEHAQtGEAPNLSVAALQALKAFPLGSFNSSHRLQFESIFYQRKRRFDSSARTLALDIILSLRPTQEQLGNFLDY 548
Cdd:smart00638 478 SIKVLEPYLE-GAEPLSTFIRLAAILALRNLAKRDPRKVQEVLLPIYLNRAEPPEVRMAAVLVLMETKPSVALLQRIAEL 556
                          570
                   ....*....|....*....
gi 24585552    549 LASnDRQFEIKTYVLQKLR 567
Cdd:smart00638 557 LNK-EPNLQVASFVYSHIR 574
Vitellogenin_N pfam01347
Lipoprotein amino terminal region; This family contains regions from: Vitellogenin, Microsomal ...
103-494 1.83e-19

Lipoprotein amino terminal region; This family contains regions from: Vitellogenin, Microsomal triglyceride transfer protein and apolipoprotein B-100. These proteins are all involved in lipid transport. This family contains the LV1n chain from lipovitellin, that contains two structural domains.


Pssm-ID: 460170 [Multi-domain]  Cd Length: 582  Bit Score: 93.11  E-value: 1.83e-19
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552   103 DRPFYISLVRGQPDKVIAHTSKDQSLLNLERGIASLLQLRLDASQEE-------ELDVSGLCRVSYNVKSSTK-----VE 170
Cdd:pfam01347  81 SKPFKFEYSNGRVGELYVPKDVPTWSLNIKRGILSLLQVDLKGKEKTqgvyklqETTVTGDCETLYTVSEDKEgdliiVT 160
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552   171 KTK-----RDCSLWDLRVNYNPEEA----LGVTQQAQETVFYELSSE---GTLLHAESQENH--RLNLAAKPDVGSFVKS 236
Cdd:pfam01347 161 KTKnlnncQERVSYRYGLAYAEWCPgcnqMGKFLSRTSVSTYILKGKlkgFLIQSAETTEKVqvSPFLENNQKAKVESRQ 240
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552   237 SLILQHVSQGSEEVKQLQlgSLDKaIQSLLEWYRVFELESDVDGMISAIKEQTLED---QLKASLTELQ---SADVGKSS 310
Cdd:pfam01347 241 NLTLEEVEKTPGLIPPPA--NPRH-RGSLVYEYETEQASLSQELLQSPSSLSSVPNaveLIKEILKHLVqnpSNMVKEDA 317
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552   311 LALaYVKLIPLARITRQEQFEDLLT------EHAEVLPQLVDLLGAVQTFDAHNATFGFLyKESETTSEQLDLLekyLQS 384
Cdd:pfam01347 318 LAK-FLILVRLLRTASEEQLEQIWRqlyqnkPKYRRWPAFLDAVAQAGTGPALKFIKQWI-KSKKITGLEAAQV---LAV 392
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552   385 LAVATHPDRKIVEHLFGLLEQESIKKHLKLRESVIQTVATLTRQ------SGLDVEDPLLKEVRSYLLQGLT---SKEPT 455
Cdd:pfam01347 393 LPHARYPTEEYMKALFELAESPEVKNQPYLNTSALLAYGSLVRKycvnnpSCPREFEEYLPPLAQKLKEAVSkgdSEKIQ 472
                         410       420       430       440
                  ....*....|....*....|....*....|....*....|.
gi 24585552   456 LYIRALQNLQDPATIEALLEHAQTGEAPNLSV--AALQALK 494
Cdd:pfam01347 473 LYLKALGNAGHPESLKVLEKYLEGAEGLSTRVrvAAVQALR 513
MTP_lip_bd pfam19444
MTP large subunit, lipid-binding domain; Microsomal triglyceride transfer protein (MTP) is ...
695-883 1.61e-13

MTP large subunit, lipid-binding domain; Microsomal triglyceride transfer protein (MTP) is essential in lipid metabolism, especially in the biogenesis of very low-density lipoproteins and chylomicrons via the transfer of neutral lipids and the assembly of apoB-containing lipoproteins. It is a heterodimer consisting of a large MTP alpha-subunit and a protein disulfide isomerase (PDI) beta-subunit. The MTP large subunit has and N-terminal beta-barrel domain, a central alpha-helical domain and a C-terminal 2-beta-sheet domain. This is the highly conserved MTP C-terminal domain involved in lipid-binding and transfer activity, with preference of neutral 3 chain-containing lipids. The beta-sheets are named A and C and form a sandwich comprising the lipid-binding site between them. Half of the A-sheet interacts with the beta-barrel. This domain also interacts with a' and b' domains of PDI.


Pssm-ID: 466086  Cd Length: 258  Bit Score: 71.34  E-value: 1.61e-13
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552   695 QGAQLRPLVFFSGQTELMGHVWGGSAsDSTPAYQATTLSQDNEHYIILTSGATLHWRVLGARSVDLNGKVGFSLWNRNAQ 774
Cdd:pfam19444  69 HASQVRPVTFFQGYSDLMSKMFSATG-EPMSVVKGLILLIDHSQVIQLQSGLKASVEFQGGLAIDISGGMEFSLWYRESK 147
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24585552   775 TEIqQNTGSAVL-GHLAVGFTYAKLVQDFSITHEpklslnADLDFYSGIK-------LCMQLQRPEQLLKQTNVRSVFLQ 846
Cdd:pfam19444 148 TNV-NNRGALVItGNITVDSSFVKAGVEVSFETE------ASLDFISTVQfseypflVCMQMDKTTFPFRQYVTKYESLP 220
                         170       180       190
                  ....*....|....*....|....*....|....*..
gi 24585552   847 SvDRPYAKhvRSTLSHKTAGCTFALNQKNNEMCNLIF 883
Cdd:pfam19444 221 S-GISYTS--RKGRKQLVPGSEFPLHQENSEMCKKVF 254
 
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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