NCBI Home Page NCBI Site Search page NCBI Guide that lists and describes the NCBI resources
Conserved domains on  [gi|552953802|ref|NP_001272803|]
View 

platelet-activating factor acetylhydrolase 2, cytoplasmic isoform b [Mus musculus]

Protein Classification

PAF-AH_p_II domain-containing protein( domain architecture ID 10506208)

PAF-AH_p_II domain-containing protein

Graphical summary

 Zoom to residue level

show extra options »

Show site features     Horizontal zoom: ×

List of domain hits

Name Accession Description Interval E-value
PAF-AH_p_II pfam03403
Platelet-activating factor acetylhydrolase, isoform II; Platelet-activating factor ...
1-379 0e+00

Platelet-activating factor acetylhydrolase, isoform II; Platelet-activating factor acetylhydrolase (PAF-AH) is a subfamily of phospholipases A2, responsible for inactivation of platelet-activating factor through cleavage of an acetyl group. Three known PAF-AHs are the brain heterotrimeric PAF-AH Ib, whose catalytic beta and gamma subunits are aligned in pfam02266, the extracellular, plasma PAF-AH (pPAF-AH), and the intracellular PAF-AH isoform II (PAF-AH II). This family aligns pPAF-AH and PAF-AH II, whose similarity was previously noted.


:

Pssm-ID: 397462 [Multi-domain]  Cd Length: 372  Bit Score: 554.36  E-value: 0e+00
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802    1 MGAGQSVCFPPISGPHHIGCTDVMEGHSLEGSLFRLFYPC-QASEKCEQPLWIPRYEYSMGLADYLQYNKRWVGLLFNVG 79
Cdd:pfam03403   1 AGSSGQVKIPAGNGPYPVGCTDLMIGHTLRGSFLRLYYPSdQADEDREDTLWIPNKEYFQGLSEFLGTSSWLGNRLFALL 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802   80 IGSCRLPVSWNGPFKAKESgYPLIILSHGLGGFRASYSAFCMELASRGFVVAAVEHRDQSAAATYFCKptsqESSPAESL 159
Cdd:pfam03403  81 VGSLTLPASWNSPFKTGEK-YPLIVFSHGLGAFRTIYSAICIELASHGFVVAAVEHRDRSASATYFFK----DKPAAEEE 155
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802  160 EEEWLPFRRIKEgEKEFHVRNPQVHQRVKECVRVLRILQDASAGKTVVNVFPGGLDLMTLKGSIDRNRVAVMGHSFGGAT 239
Cdd:pfam03403 156 QKSWIYLRKVKE-EEEFHLRNEQVQQRAQECSKALSLILDINLGTPVENVLDSDFDWQQLKGNLDMSKIAVIGHSFGGAT 234
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802  240 AVLALTQEVQFRCAIALDAWMFPLERDFYPKARGPVFFINVEKFQTVESVNLMKKICAQHEQSRIVTVLGAVHRSQTDFA 319
Cdd:pfam03403 235 VIQSLSEDTRFRCGIALDAWMFPVGDDVYSKARQPLLFINSEKFQWAEDIFKMKKIYSPDKESKMITIKGSVHQNFSDFT 314
                         330       340       350       360       370       380
                  ....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802  320 FVTGNLIAKFFSsnSRGTLDPYESQEVMVRAILAFLQKHLDLKEDYDQWSSFIEGVGPSL 379
Cdd:pfam03403 315 FVTGKIIGKKLK--LKGEIDPYEAIDINNRASLAFLQKHLDLHKDFDQWDNLIEGDDENL 372
 
Name Accession Description Interval E-value
PAF-AH_p_II pfam03403
Platelet-activating factor acetylhydrolase, isoform II; Platelet-activating factor ...
1-379 0e+00

Platelet-activating factor acetylhydrolase, isoform II; Platelet-activating factor acetylhydrolase (PAF-AH) is a subfamily of phospholipases A2, responsible for inactivation of platelet-activating factor through cleavage of an acetyl group. Three known PAF-AHs are the brain heterotrimeric PAF-AH Ib, whose catalytic beta and gamma subunits are aligned in pfam02266, the extracellular, plasma PAF-AH (pPAF-AH), and the intracellular PAF-AH isoform II (PAF-AH II). This family aligns pPAF-AH and PAF-AH II, whose similarity was previously noted.


Pssm-ID: 397462 [Multi-domain]  Cd Length: 372  Bit Score: 554.36  E-value: 0e+00
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802    1 MGAGQSVCFPPISGPHHIGCTDVMEGHSLEGSLFRLFYPC-QASEKCEQPLWIPRYEYSMGLADYLQYNKRWVGLLFNVG 79
Cdd:pfam03403   1 AGSSGQVKIPAGNGPYPVGCTDLMIGHTLRGSFLRLYYPSdQADEDREDTLWIPNKEYFQGLSEFLGTSSWLGNRLFALL 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802   80 IGSCRLPVSWNGPFKAKESgYPLIILSHGLGGFRASYSAFCMELASRGFVVAAVEHRDQSAAATYFCKptsqESSPAESL 159
Cdd:pfam03403  81 VGSLTLPASWNSPFKTGEK-YPLIVFSHGLGAFRTIYSAICIELASHGFVVAAVEHRDRSASATYFFK----DKPAAEEE 155
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802  160 EEEWLPFRRIKEgEKEFHVRNPQVHQRVKECVRVLRILQDASAGKTVVNVFPGGLDLMTLKGSIDRNRVAVMGHSFGGAT 239
Cdd:pfam03403 156 QKSWIYLRKVKE-EEEFHLRNEQVQQRAQECSKALSLILDINLGTPVENVLDSDFDWQQLKGNLDMSKIAVIGHSFGGAT 234
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802  240 AVLALTQEVQFRCAIALDAWMFPLERDFYPKARGPVFFINVEKFQTVESVNLMKKICAQHEQSRIVTVLGAVHRSQTDFA 319
Cdd:pfam03403 235 VIQSLSEDTRFRCGIALDAWMFPVGDDVYSKARQPLLFINSEKFQWAEDIFKMKKIYSPDKESKMITIKGSVHQNFSDFT 314
                         330       340       350       360       370       380
                  ....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802  320 FVTGNLIAKFFSsnSRGTLDPYESQEVMVRAILAFLQKHLDLKEDYDQWSSFIEGVGPSL 379
Cdd:pfam03403 315 FVTGKIIGKKLK--LKGEIDPYEAIDINNRASLAFLQKHLDLHKDFDQWDNLIEGDDENL 372
COG4188 COG4188
Predicted dienelactone hydrolase [General function prediction only];
85-365 2.84e-24

Predicted dienelactone hydrolase [General function prediction only];


Pssm-ID: 443342 [Multi-domain]  Cd Length: 326  Bit Score: 101.72  E-value: 2.84e-24
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802  85 LPVSWNGPFKAKESgYPLIILSHGLGGFRASYSAFCMELASRGFVVAAVEHRDqsaaatyfckPTSQESSPAESLEEEWL 164
Cdd:COG4188   48 YPATAPADAPAGGP-FPLVVLSHGLGGSREGYAYLAEHLASHGYVVAAPDHPG----------SNAADLSAALDGLADAL 116
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802 165 PFRRIKEgekefhvrnpqvhqRVKECVRVLRILQDASAGKTvvnvfpggldlmTLKGSIDRNRVAVMGHSFGGATAVLAL 244
Cdd:COG4188  117 DPEELWE--------------RPLDLSFVLDQLLALNKSDP------------PLAGRLDLDRIGVIGHSLGGYTALALA 170
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802 245 TQEVQF--------------------------------RCAIALDAWMFP-LERDFYPKARGPVFFINVEKFQTV----E 287
Cdd:COG4188  171 GARLDFaalrqycgknpdlqcraldlprlaydlrdpriKAVVALAPGGSGlFGEEGLAAITIPVLLVAGSADDVTpapdE 250
                        250       260       270       280       290       300       310
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 552953802 288 SVNLMKKIcaQHEQSRIVTVLGAVHrsqtdFAF-VTGNLIAKFFSSNSRGTLDPYESQEVMVRAILAFLQKHLDLKEDY 365
Cdd:COG4188  251 QIRPFDLL--PGADKYLLTLEGATH-----FSFlDPCTPGAAILPEPDPPGPDRAAIHEYLNALSLAFFDAYLKGDPAA 322
 
Name Accession Description Interval E-value
PAF-AH_p_II pfam03403
Platelet-activating factor acetylhydrolase, isoform II; Platelet-activating factor ...
1-379 0e+00

Platelet-activating factor acetylhydrolase, isoform II; Platelet-activating factor acetylhydrolase (PAF-AH) is a subfamily of phospholipases A2, responsible for inactivation of platelet-activating factor through cleavage of an acetyl group. Three known PAF-AHs are the brain heterotrimeric PAF-AH Ib, whose catalytic beta and gamma subunits are aligned in pfam02266, the extracellular, plasma PAF-AH (pPAF-AH), and the intracellular PAF-AH isoform II (PAF-AH II). This family aligns pPAF-AH and PAF-AH II, whose similarity was previously noted.


Pssm-ID: 397462 [Multi-domain]  Cd Length: 372  Bit Score: 554.36  E-value: 0e+00
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802    1 MGAGQSVCFPPISGPHHIGCTDVMEGHSLEGSLFRLFYPC-QASEKCEQPLWIPRYEYSMGLADYLQYNKRWVGLLFNVG 79
Cdd:pfam03403   1 AGSSGQVKIPAGNGPYPVGCTDLMIGHTLRGSFLRLYYPSdQADEDREDTLWIPNKEYFQGLSEFLGTSSWLGNRLFALL 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802   80 IGSCRLPVSWNGPFKAKESgYPLIILSHGLGGFRASYSAFCMELASRGFVVAAVEHRDQSAAATYFCKptsqESSPAESL 159
Cdd:pfam03403  81 VGSLTLPASWNSPFKTGEK-YPLIVFSHGLGAFRTIYSAICIELASHGFVVAAVEHRDRSASATYFFK----DKPAAEEE 155
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802  160 EEEWLPFRRIKEgEKEFHVRNPQVHQRVKECVRVLRILQDASAGKTVVNVFPGGLDLMTLKGSIDRNRVAVMGHSFGGAT 239
Cdd:pfam03403 156 QKSWIYLRKVKE-EEEFHLRNEQVQQRAQECSKALSLILDINLGTPVENVLDSDFDWQQLKGNLDMSKIAVIGHSFGGAT 234
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802  240 AVLALTQEVQFRCAIALDAWMFPLERDFYPKARGPVFFINVEKFQTVESVNLMKKICAQHEQSRIVTVLGAVHRSQTDFA 319
Cdd:pfam03403 235 VIQSLSEDTRFRCGIALDAWMFPVGDDVYSKARQPLLFINSEKFQWAEDIFKMKKIYSPDKESKMITIKGSVHQNFSDFT 314
                         330       340       350       360       370       380
                  ....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802  320 FVTGNLIAKFFSsnSRGTLDPYESQEVMVRAILAFLQKHLDLKEDYDQWSSFIEGVGPSL 379
Cdd:pfam03403 315 FVTGKIIGKKLK--LKGEIDPYEAIDINNRASLAFLQKHLDLHKDFDQWDNLIEGDDENL 372
COG4188 COG4188
Predicted dienelactone hydrolase [General function prediction only];
85-365 2.84e-24

Predicted dienelactone hydrolase [General function prediction only];


Pssm-ID: 443342 [Multi-domain]  Cd Length: 326  Bit Score: 101.72  E-value: 2.84e-24
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802  85 LPVSWNGPFKAKESgYPLIILSHGLGGFRASYSAFCMELASRGFVVAAVEHRDqsaaatyfckPTSQESSPAESLEEEWL 164
Cdd:COG4188   48 YPATAPADAPAGGP-FPLVVLSHGLGGSREGYAYLAEHLASHGYVVAAPDHPG----------SNAADLSAALDGLADAL 116
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802 165 PFRRIKEgekefhvrnpqvhqRVKECVRVLRILQDASAGKTvvnvfpggldlmTLKGSIDRNRVAVMGHSFGGATAVLAL 244
Cdd:COG4188  117 DPEELWE--------------RPLDLSFVLDQLLALNKSDP------------PLAGRLDLDRIGVIGHSLGGYTALALA 170
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802 245 TQEVQF--------------------------------RCAIALDAWMFP-LERDFYPKARGPVFFINVEKFQTV----E 287
Cdd:COG4188  171 GARLDFaalrqycgknpdlqcraldlprlaydlrdpriKAVVALAPGGSGlFGEEGLAAITIPVLLVAGSADDVTpapdE 250
                        250       260       270       280       290       300       310
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 552953802 288 SVNLMKKIcaQHEQSRIVTVLGAVHrsqtdFAF-VTGNLIAKFFSSNSRGTLDPYESQEVMVRAILAFLQKHLDLKEDY 365
Cdd:COG4188  251 QIRPFDLL--PGADKYLLTLEGATH-----FSFlDPCTPGAAILPEPDPPGPDRAAIHEYLNALSLAFFDAYLKGDPAA 322
DLH COG0412
Dienelactone hydrolase [Secondary metabolites biosynthesis, transport and catabolism];
95-312 4.78e-10

Dienelactone hydrolase [Secondary metabolites biosynthesis, transport and catabolism];


Pssm-ID: 440181 [Multi-domain]  Cd Length: 226  Bit Score: 59.21  E-value: 4.78e-10
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802  95 AKESGYPLIILSHGLGGFRASYSAFCMELASRGFVVAAVEHRDQSAAATYfckptsqesspaeslEEEWLPFRRIKEGEk 174
Cdd:COG0412   24 AGGGPRPGVVVLHEIFGLNPHIRDVARRLAAAGYVVLAPDLYGRGGPGDD---------------PDEARALMGALDPE- 87
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802 175 efhvrnpqvhqrvkecvrvlRILQDASAGktvvnvfpggLDLMTLKGSIDRNRVAVMGHSFGGATAVLALTQEVQFRCAI 254
Cdd:COG0412   88 --------------------LLAADLRAA----------LDWLKAQPEVDAGRVGVVGFCFGGGLALLAAARGPDLAAAV 137
                        170       180       190       200       210       220
                 ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 552953802 255 ALDAW-MFPLERDFYPKARGPVFFINVEK--FQTVESVN-LMKKICAQHEQSRIVTVLGAVH 312
Cdd:COG0412  138 SFYGGlPADDLLDLAARIKAPVLLLYGEKdpLVPPEQVAaLEAALAAAGVDVELHVYPGAGH 199
DAP2 COG1506
Dipeptidyl aminopeptidase/acylaminoacyl peptidase [Amino acid transport and metabolism];
95-295 6.94e-10

Dipeptidyl aminopeptidase/acylaminoacyl peptidase [Amino acid transport and metabolism];


Pssm-ID: 441115 [Multi-domain]  Cd Length: 234  Bit Score: 58.87  E-value: 6.94e-10
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802  95 AKESGYPLIILSHGLGGFRA-SYSAFCMELASRGFVVAAVEHRDQSAAAtyfckptsqesspaesleEEWlpfrrikeGE 173
Cdd:COG1506   18 ADGKKYPVVVYVHGGPGSRDdSFLPLAQALASRGYAVLAPDYRGYGESA------------------GDW--------GG 71
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802 174 KEfhvrnpqvhqrvkecvrvlriLQDASAGktvvnvfpggLDLMTLKGSIDRNRVAVMGHSFGGATAVLALTQEVQ-FRC 252
Cdd:COG1506   72 DE---------------------VDDVLAA----------IDYLAARPYVDPDRIGIYGHSYGGYMALLAAARHPDrFKA 120
                        170       180       190       200
                 ....*....|....*....|....*....|....*....|....*..
gi 552953802 253 AIAL----DAWMFPLERDFYPKARGPVFFINVEKFQTVESVNLMKKI 295
Cdd:COG1506  121 AVALagvsDLRSYYGTTREYTERLMGGPWEDPEAYAARSPLAYADKL 167
FrsA COG1073
Fermentation-respiration switch esterase FrsA, DUF1100 family [Signal transduction mechanisms]; ...
94-261 3.09e-06

Fermentation-respiration switch esterase FrsA, DUF1100 family [Signal transduction mechanisms];


Pssm-ID: 440691 [Multi-domain]  Cd Length: 253  Bit Score: 47.99  E-value: 3.09e-06
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802  94 KAKESGYPLIILSHGLGGFRASYSAFCMELASRGFVVAAVEHRdqsaaatyfckptSQESSPAESLEEEWlPFRRikege 173
Cdd:COG1073   31 AGASKKYPAVVVAHGNGGVKEQRALYAQRLAELGFNVLAFDYR-------------GYGESEGEPREEGS-PERR----- 91
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802 174 kefhvrnpqvhqrvkecvrvlrilqDASAgktvvnvfpgGLDLMTLKGSIDRNRVAVMGHSFGGATAVLALTQEVQFRcA 253
Cdd:COG1073   92 -------------------------DARA----------AVDYLRTLPGVDPERIGLLGISLGGGYALNAAATDPRVK-A 135

                 ....*...
gi 552953802 254 IALDAwMF 261
Cdd:COG1073  136 VILDS-PF 142
Peptidase_S9 pfam00326
Prolyl oligopeptidase family;
223-255 7.38e-05

Prolyl oligopeptidase family;


Pssm-ID: 459761 [Multi-domain]  Cd Length: 213  Bit Score: 43.37  E-value: 7.38e-05
                          10        20        30
                  ....*....|....*....|....*....|....
gi 552953802  223 IDRNRVAVMGHSFGGATAVLALTQEVQ-FRCAIA 255
Cdd:pfam00326  61 TDPDRLAIWGGSYGGYLTGAALNQRPDlFKAAVA 94
Aes COG0657
Acetyl esterase/lipase [Lipid transport and metabolism];
101-359 2.16e-04

Acetyl esterase/lipase [Lipid transport and metabolism];


Pssm-ID: 440422 [Multi-domain]  Cd Length: 207  Bit Score: 42.17  E-value: 2.16e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802 101 PLIILSHGlGGF----RASYSAFCMELAS-RGFVVAAVEHRdQSAAATYfckptsqessPAesleeewlpfrrikegeke 175
Cdd:COG0657   14 PVVVYFHG-GGWvsgsKDTHDPLARRLAArAGAAVVSVDYR-LAPEHPF----------PA------------------- 62
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802 176 fhvrnpQVHQrvkeCVRVLRILQDASAgktvvnvfpggldlmtlKGSIDRNRVAVMGHSFGGA-TAVLALT----QEVQF 250
Cdd:COG0657   63 ------ALED----AYAALRWLRANAA-----------------ELGIDPDRIAVAGDSAGGHlAAALALRardrGGPRP 115
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 552953802 251 RCAI----ALDAWMFPLERDFypKARGPVFFINVEKFQTV-ESVNLMKKICAQHEQSRIVTVLGAVHrsqtdfAFVTGNL 325
Cdd:COG0657  116 AAQVliypVLDLTASPLRADL--AGLPPTLIVTGEADPLVdESEALAAALRAAGVPVELHVYPGGGH------GFGLLAG 187
                        250       260       270
                 ....*....|....*....|....*....|....
gi 552953802 326 IAkffssnsrgtldpyESQEVMvRAILAFLQKHL 359
Cdd:COG0657  188 LP--------------EARAAL-AEIAAFLRRAL 206
PldB COG2267
Lysophospholipase, alpha-beta hydrolase superfamily [Lipid transport and metabolism];
93-136 1.27e-03

Lysophospholipase, alpha-beta hydrolase superfamily [Lipid transport and metabolism];


Pssm-ID: 441868 [Multi-domain]  Cd Length: 221  Bit Score: 39.99  E-value: 1.27e-03
                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....
gi 552953802  93 FKAKESGYPLIILSHGLGGFRASYSAFCMELASRGFVVAAVEHR 136
Cdd:COG2267   21 WRPAGSPRGTVVLVHGLGEHSGRYAELAEALAAAGYAVLAFDLR 64
 
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.
Help | Disclaimer | Write to the Help Desk
NCBI | NLM | NIH