Hmdb loader
Identification
HMDB Protein ID HMDBP07301
Secondary Accession Numbers
  • 12922
Name Phospholipase B1, membrane-associated
Synonyms
  1. Lysophospholipase
  2. PLB/LIP
  3. Phospholipase A2
  4. Phospholipase B
  5. Phospholipase B/lipase
  6. hPLB
Gene Name PLB1
Protein Type Unknown
Biological Properties
General Function Involved in hydrolase activity
Specific Function Membrane-associated phospholipase. Exhibits a calcium-independent broad substrate specificity including phospholipase A2/lysophospholipase activity. Preferential hydrolysis at the sn-2 position of diacylphospholipids and diacyglycerol, whereas it shows no positional specificity toward triacylglycerol. Exhibits also esterase activity toward p-nitrophenyl. May act on the brush border membrane to facilitate the absorption of digested lipids (By similarity).
Pathways
  • alpha-Linolenic acid metabolism
  • Arachidonic acid metabolism
  • Ether lipid metabolism
  • Glycerophospholipid metabolism
  • Linoleic acid metabolism
  • Vitamin digestion and absorption
Reactions
2-lysophosphatidylcholine + Water → Glycerophosphocholine + a carboxylate details
Phosphatidylcholine + Water → 1-acylglycerophosphocholine + a carboxylate details
Phosphatidylcholine + Water → 1-Acyl-sn-glycero-3-phosphocholine + Fatty acid details
Phosphatidylcholine + Water → 1-Acyl-sn-glycero-3-phosphocholine + Arachidonic acid details
Phosphatidylethanolamine + Water → 1-Acyl-sn-glycero-3-phosphoethanolamine + Fatty acid details
1-Acyl-sn-glycero-3-phosphocholine + Water → Glycerophosphocholine + Fatty acid details
2-Acyl-sn-glycero-3-phosphocholine + Water → Glycerophosphocholine + Fatty acid details
1-Acyl-sn-glycero-3-phosphoethanolamine + Water → Fatty acid + sn-glycero-3-Phosphoethanolamine details
2-Acyl-sn-glycero-3-phosphoethanolamine + Water → Fatty acid + sn-glycero-3-Phosphoethanolamine details
Phosphatidylcholine + Water → 1-Acyl-sn-glycero-3-phosphocholine + Linoleic acid details
O-1-Alk-1-enyl-2-acyl-sn-glycero-3-phosphoethanolamine + Water → 1-(1-Alkenyl)-sn-glycero-3-phosphoethanolamine + Carboxylate details
1-Radyl-2-acyl-sn-glycero-3-phosphocholine + Water → 1-Organyl-2-lyso-sn-glycero-3-phosphocholine + Carboxylate details
Phosphatidylcholine + Water → 1-Acyl-sn-glycero-3-phosphocholine + alpha-Linolenic acid details
GO Classification
Biological Process
phosphatidylcholine acyl-chain remodeling
retinoid metabolic process
lipid catabolic process
steroid metabolic process
glycerophospholipid biosynthetic process
Cellular Component
plasma membrane
apical plasma membrane
integral to membrane
Function
hydrolase activity, acting on ester bonds
catalytic activity
hydrolase activity
lipase activity
Molecular Function
phospholipase A2 activity
lysophospholipase activity
Process
metabolic process
primary metabolic process
lipid metabolic process
Cellular Location
  1. Single-pass type I membrane protein
  2. Apical cell membrane
Gene Properties
Chromosome Location 2
Locus 2p23.2
SNPs PLB1
Gene Sequence
>4377 bp
ATGGGGCTGCGGCCAGGCATTTTCCTCCTGGAGCTGCTGCTGCTTCTGGGGCAAGGGACC
CCTCAGATCCATACCTCTCCTAGAAAGAGTACATTGGAAGGGCAGCTATGGCCAGAGACC
CTGAAGAATTCTCCATTCCCATGCAACCCAAATAAATTAGGAGTGAATATGCCTTCTAAA
TCAGTTCACTCTCTGAAGCCTTCTGATATTAAATTTGTGGCAGCCATTGGCAATCTGGAA
ATTCCTCCAGACCCAGGGACGGGCGATCTGGAGAAGCAAGACTGGACTGAAAGGCCACAG
CAGGTGTGCATGGGAGTGATGACAGTCCTTTCAGACATCATCAGATATTTCAGTCCTTCT
GTTCCAATGCCTGTGTGCCACACTGGAAAGAGAGTCATACCCCACGATGGTGCTGAAGAC
TTGTGGATTCAGGCTCAAGAACTGGTGAGAAACATGAAAGAGAACCTGCAACTTGACTTT
CAATTTGACTGGAAGCTCATCAATGTGTTCTTCAGTAATGCAAGCCAGTGTTACCTGTGC
CCCTCTGCTCAACAGAATGGGCTTGCGGCGGGCGGCGTGGATGAGCTGATGGGGGTGCTG
GACTACCTGCAGCAGGAGGTCCCCAGAGCATTTGTAAACCTGGTGGACCTCTCTGAGGTT
GCAGAGGTCTCTCGTCAGTATCACGGCACTTGGCTCAGCCCTGCACCAGAGCCCTGTAAT
TGCTCAGAGGAGACCACCCGGCTGGCCAAGGTGGTGATGCAGTGGTCTTATCAGGAAGCC
TGGAACAGCCTCCTGGCCTCCAGCAGGTACAGTGAGCAGGAGTCCTTCACCGTGGTTTTC
CAGCCTTTCTTCTATGAGACCACCCCATCTCTACACTCGGAGGACCCCCGACTCCAGGAT
TCTACCACGCTGGCCTGGCATCTCTGGAATAGGATGATGGAGCCAGCAGGAGAGAAAGAT
GAGCCATTGAGTGTAAAACACGGGAGGCCAATGAAGTGTCCCTCTCAGGAGAGCCCCTAT
CTGTTCAGCTACAGAAACAGCAACTACCTGACCAGACTGCAGAAACCCCAAGACAAGCTT
GAGGTAAGAGAAGGAGCGGAAATCAGATGTCCTGACAAAGACCCCTCCGATACGGTTCCC
ACCTCAGTTCATAGGCTGAAGCCGGCTGACATCAACGTAATTGGAGCCCTGGGTGACTCT
CTCACGGCAGGCAATGGGGCCGGGTCCACACCTGGGAACGTCTTGGACGTCTTGACTCAG
TACCGAGGCCTGTCCTGGAGCGTCGGCGGAGATGAGAACATCGGCACCGTTACCACCCTG
GCGAACATCCTCCGGGAATTCAACCCTTCCCTGAAGGGCTTCTCTGTTGGCACTGGGAAA
GAAACCAGTCCTAATGCCTTCTTAAACCAGGCTGTGGCAGGAGGCCGAGCTGAGGATCTA
CCTGTCCAGGCCAGGAGGCTGGTGGACCTGATGAAGAATGACACGAGGATACACTTTCAG
GAAGACTGGAAGATAATAACCCTGTTTATAGGCGGCAATGACCTCTGTGATTTCTGCAAT
GATCTGGTCCACTATTCTCCCCAGAACTTCACAGACAACATTGGAAAGGCCCTGGACATC
CTCCATGCTGAGGTTCCTCGGGCATTTGTGAACCTGGTGACGGTGCTTGAGATCGTCAAC
CTGAGGGAGCTGTACCAGGAGAAAAAAGTCTACTGCCCAAGGATGATCCTCAGGTCTCTG
TGTCCCTGTGTCCTGAAGTTTGATGATAACTCAACAGAACTTGCTACCCTCATCGAATTC
AACAAGAAGTTTCAGGAGAAGACCCACCAACTGATTGAGAGTGGGCGATATGACACAAGG
GAAGATTTTACTGTGGTTGTGCAGCCGTTCTTTGAAAACGTGGACATGCCAAAGACCTCG
GAAGGATTGCCTGACAACTCTTTCTTCGCTCCTGACTGTTTCCACTTCAGCAGCAAGTCT
CACTCCCGAGCAGCCAGTGCTCTCTGGAACAATATGCTGGAGCCTGTTGGCCAGAAGACG
ACTCGTCATAAGTTTGAAAACAAGATCAATATCACATGTCCGAACCAGGTCCAGCCGTTT
CTGAGGACCTACAAGAACAGCATGCAGGGTCATGGGACCTGGCTGCCATGCAGGGACAGA
GCCCCTTCTGCCTTGCACCCTACCTCAGTGCATGCCCTGAGACCTGCAGACATCCAAGTT
GTGGCTGCTCTGGGGGATTCTCTGACCGCTGGCAATGGAATTGGCTCCAAACCAGACGAC
CTCCCCGATGTCACCACACAGTATCGGGGACTGTCATACAGTGCAGGAGGGGACGGCTCC
CTGGAGAATGTGACCACCTTACCTAATATCCTTCGGGAGTTTAACAGAAACCTCACAGGC
TACGCCGTGGGCACGGGTGATGCCAATGACACGAATGCATTCCTCAATCAAGCTGTTCCC
GGAGCAAAGGCTGAGGATCTTATGAGCCAAGTCCAAACTCTGATGCAGAAGATGAAAGAT
GATCATAGAGTAAATTTCCATGAAGACTGGAAGGTCATCACAGTGCTGATCGGAGGCAGC
GATTTATGTGACTACTGCACAGATTCGAATCTGTATTCTGCAGCCAACTTTGTTCACCAT
CTCCGCAATGCCTTGGACGTCCTGCATAGAGAGGTGCCCAGAGTCCTGGTCAACCTCGTG
GACTTCCTGAACCCCACTATCATGCGGCAGGTGTTCCTGGGAAACCCAGACAAGTGCCCA
GTGCAGCAGGCCAGCGTTTTGTGTAACTGCGTTCTGACCCTGCGGGAGAACTCCCAAGAG
CTAGCCAGGCTGGAGGCCTTCAGCCGAGCCTACCGGAGCAGCATGCGCGAGCTGGTGGGG
TCAGGCCGCTATGACACGCAGGAGGACTTCTCTGTGGTGCTGCAGCCCTTCTTCCAGAAC
ATCCAGCTCCCTGTCCTGGCGGATGGGCTCCCAGATACGTCCTTCTTTGCCCCAGACTGC
ATCCACCCAAATCAGAAATTCCACTCCCAGCTGGCCAGAGCCCTTTGGACCAATATGCTT
GAACCACTTGGAAGCAAAACAGAGACCCTGGACCTGAGAGCAGAGATGCCCATCACCTGT
CCCACTCAGAATGAGCCCTTCCTGAGAACCCCTCGGAATAGTAACTACACGTACCCCATC
AAGCCAGCCATTGAGAACTGGGGCAGTGACTTCCTGTGTACAGAGTGGAAGGCTTCCAAT
AGTGTTCCAACCTCTGTCCACCAGCTCCGACCAGCAGACATCAAAGTGGTGGCCGCCCTG
GGTGACTCTCTGACTACAGCAGTGGGAGCTCGACCAAACAACTCCAGTGACCTACCCACA
TCTTGGAGGGGACTCTCTTGGAGCATTGGAGGGGATGGGAACTTGGAGACTCACACCACA
CTGCCCAACATTCTGAAGAAGTTCAACCCTTACCTCCTTGGCTTCTCTACCAGCACCTGG
GAGGGGACAGCAGGACTAAATGTGGCAGCGGAAGGGGCCAGAGCTAGGGACATGCCAGCC
CAGGCCTGGGACCTGGTAGAGCGAATGAAAAACAGCCCCGACATCAACCTGGAGAAAGAC
TGGAAGCTGGTCACACTCTTCATTGGGGTCAACGACTTGTGTCATTACTGTGAGAATCCG
GAGGCCCACTTGGCCACGGAATATGTTCAGCACATCCAACAGGCCCTGGACATCCTCTCT
GAGGAGCTCCCAAGGGCTTTCGTCAACGTGGTGGAGGTCATGGAGCTGGCTAGCCTGTAC
CAGGGCCAAGGCGGGAAATGTGCCATGCTGGCAGCTCAGAACAACTGCACTTGCCTCAGA
CACTCGCAAAGCTCCCTGGAGAAGCAAGAACTGAAGAAAGTGAACTGGAACCTCCAGCAT
GGCATCTCCAGTTTCTCCTACTGGCACCAATACACACAGCGTGAGGACTTTGCGGTTGTG
GTGCAGCCTTTCTTCCAAAACACACTCACCCCACTGAACGAGAGAGGGGACACTGACCTC
ACCTTCTTCTCCGAGGACTGTTTTCACTTCTCAGACCGCGGGCATGCCGAGATGGCCATC
GCACTCTGGAACAACATGCTGGAACCAGTGGGCCGCAAGACTACCTCCAACAACTTCACC
CACAGCCGAGCCAAACTCAAGTGCCCCTCTCCTGAGAGCCCTTACCTCTACACCCTGCGG
AACAGCCGATTGCTCCCAGACCAGGCTGAAGAAGCCCCCGAGGTGCTCTACTGGGCTGTC
CCAGTGGCAGCGGGAGTCGGCCTTGTGGTGGGCATCATCGGGACAGTGGTCTGGAGGTGC
AGGAGAGGTGGCCGGAGGGAAGATCCTCCAATGAGCCTGCGCACTGTGGCCCTCTAG
Protein Properties
Number of Residues 1458
Molecular Weight 161711.9
Theoretical pI 5.897
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
>Phospholipase B1, membrane-associated
MGLRPGIFLLELLLLLGQGTPQIHTSPRKSTLEGQLWPETLKNSPFPCNPNKLGVNMPSK
SVHSLKPSDIKFVAAIGNLEIPPDPGTGDLEKQDWTERPQQVCMGVMTVLSDIIRYFSPS
VPMPVCHTGKRVIPHDGAEDLWIQAQELVRNMKENLQLDFQFDWKLINVFFSNASQCYLC
PSAQQNGLAAGGVDELMGVLDYLQQEVPRAFVNLVDLSEVAEVSRQYHGTWLSPAPEPCN
CSEETTRLAKVVMQWSYQEAWNSLLASSRYSEQESFTVVFQPFFYETTPSLHSEDPRLQD
STTLAWHLWNRMMEPAGEKDEPLSVKHGRPMKCPSQESPYLFSYRNSNYLTRLQKPQDKL
EVREGAEIRCPDKDPSDTVPTSVHRLKPADINVIGALGDSLTAGNGAGSTPGNVLDVLTQ
YRGLSWSVGGDENIGTVTTLANILREFNPSLKGFSVGTGKETSPNAFLNQAVAGGRAEDL
PVQARRLVDLMKNDTRIHFQEDWKIITLFIGGNDLCDFCNDLVHYSPQNFTDNIGKALDI
LHAEVPRAFVNLVTVLEIVNLRELYQEKKVYCPRMILRSLCPCVLKFDDNSTELATLIEF
NKKFQEKTHQLIESGRYDTREDFTVVVQPFFENVDMPKTSEGLPDNSFFAPDCFHFSSKS
HSRAASALWNNMLEPVGQKTTRHKFENKINITCPNQVQPFLRTYKNSMQGHGTWLPCRDR
APSALHPTSVHALRPADIQVVAALGDSLTAGNGIGSKPDDLPDVTTQYRGLSYSAGGDGS
LENVTTLPNILREFNRNLTGYAVGTGDANDTNAFLNQAVPGAKAEDLMSQVQTLMQKMKD
DHRVNFHEDWKVITVLIGGSDLCDYCTDSNLYSAANFVHHLRNALDVLHREVPRVLVNLV
DFLNPTIMRQVFLGNPDKCPVQQASVLCNCVLTLRENSQELARLEAFSRAYRSSMRELVG
SGRYDTQEDFSVVLQPFFQNIQLPVLADGLPDTSFFAPDCIHPNQKFHSQLARALWTNML
EPLGSKTETLDLRAEMPITCPTQNEPFLRTPRNSNYTYPIKPAIENWGSDFLCTEWKASN
SVPTSVHQLRPADIKVVAALGDSLTTAVGARPNNSSDLPTSWRGLSWSIGGDGNLETHTT
LPNILKKFNPYLLGFSTSTWEGTAGLNVAAEGARARDMPAQAWDLVERMKNSPDINLEKD
WKLVTLFIGVNDLCHYCENPEAHLATEYVQHIQQALDILSEELPRAFVNVVEVMELASLY
QGQGGKCAMLAAQNNCTCLRHSQSSLEKQELKKVNWNLQHGISSFSYWHQYTQREDFAVV
VQPFFQNTLTPLNERGDTDLTFFSEDCFHFSDRGHAEMAIALWNNMLEPVGRKTTSNNFT
HSRAKLKCPSPESPYLYTLRNSRLLPDQAEEAPEVLYWAVPVAAGVGLVVGIIGTVVWRC
RRGGRREDPPMSLRTVAL
GenBank ID Protein 283436112
UniProtKB/Swiss-Prot ID Q6P1J6
UniProtKB/Swiss-Prot Entry Name PLB1_HUMAN
PDB IDs Not Available
GenBank Gene ID NM_153021.4
GeneCard ID PLB1
GenAtlas ID PLB1
HGNC ID HGNC:30041
References
General References
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