| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| O46419 | Lipoyltransferase 1, mitochondrial; EC 2.3.1.-; Lipoate biosynthesis protein; Lipoate-protein ligase; Lipoyl ligase; | LIPT1; | NP_777220.1;XP_005212346.1;XP_005212347.1; | 373 | cow |
| P43033 | Platelet-activating factor acetylhydrolase IB subunit alpha; Lissencephaly-1 protein; LIS-1; PAF acetylhydrolase 45 kDa subunit; PAF-AH 45 kDa subunit; PAF-AH alpha; PAFAH alpha; | PAFAH1B1; LIS1 PAFAHA; | NP_777088.1; | 410 | cow |
| P23132 | Lithostathine; Islet cells regeneration factor; ICRF; Islet of Langerhans regenerating protein; REG; Pancreatic stone protein; PSP; Pancreatic thread protein; PTP; [Cleaved into: Lithostathine A chain; Lithostathine B chain]; | PTP; | NP_991356.1;XP_005212802.1; | 175 | cow |
| Q3SZH7 | Leukotriene A-4 hydrolase; LTA-4 hydrolase; EC 3.3.2.6; Leukotriene A(4) hydrolase; | LTA4H; | NP_001029452.1; | 611 | cow |
| Q2HJD1 | VIP36-like protein; Lectin mannose-binding 2-like; LMAN2-like protein; | LMAN2L; VIPL; | NP_001014953.1; | 348 | cow |
| Q3SYY9 | Probable lysosomal cobalamin transporter; LMBR1 domain-containing protein 1; | LMBRD1; | NP_001030264.1; | 543 | cow |
| Q1JQD9 | Lethal(3)malignant brain tumor-like protein 2; L(3)mbt-like protein 2; | L3MBTL2; | NP_001069078.1; | 706 | cow |
| Q17QE2 | LIM and cysteine-rich domains protein 1; | LMCD1; | NP_001069690.1; | 363 | cow |
| Q0P5C0 | Lipase maturation factor 1; Transmembrane protein 112; | LMF1; TMEM112; | NP_001068658.1; | 561 | cow |
| A1L504 | Lipase maturation factor 2; | LMF2; | NP_001032532.1; | 703 | cow |
| P20274 | Lens fiber membrane intrinsic protein; MP18; MP19; MP20; MP21; MP23; | LIM2; | NP_776527.1; | 173 | cow |
| Q2KIA3 | LIM domain only protein 3; LMO-3; | LMO3; | NP_001039802.1;XP_005207039.1; | 145 | cow |
| Q3SWZ8 | LIM domain transcription factor LMO4; LIM domain only protein 4; LMO-4; | LMO4; | NP_001029923.1;XP_005204367.1; | 165 | cow |
| Q59HJ6 | Lon protease homolog, mitochondrial; EC 3.4.21.-; Lon protease-like protein; LONP; Mitochondrial ATP-dependent protease Lon; Serine protease 15; | LONP1; PRSS15; | NP_001015569.2; | 961 | cow |
| Q3SX23 | Lon protease homolog 2, peroxisomal; EC 3.4.21.-; Lon protease-like protein 2; Lon protease 2; Peroxisomal Lon protease; | LONP2; | NP_001029895.1; | 852 | cow |
| P27479 | Arachidonate 15-lipoxygenase; 15-LOX; EC 1.13.11.33; 12/15-lipoxygenase; Arachidonate 12-lipoxygenase, leukocyte-type; 12-LOX; EC 1.13.11.31; Arachidonate omega-6 lipoxygenase; Erythroid cell-specific 15-lipoxygenase; | ALOX15; | NP_776926.1; | 663 | cow |
| Q95L39 | Lysyl oxidase homolog 1; EC 1.4.3.-; Lysyl oxidase-like protein 1; | LOXL1; | NP_776808.1; | 591 | cow |
| A6H737 | Lysyl oxidase homolog 2; EC 1.4.3.13; Lysyl oxidase-like protein 2; | LOXL2; | NP_001092523.1; | 774 | cow |
| Q8MJ24 | Lysyl oxidase homolog 4; EC 1.4.3.-; Lysyl oxidase-like protein 4; | LOXL4; | NP_776809.1; | 757 | cow |
| Q28031 | Lysophosphatidic acid receptor 1; LPA receptor 1; LPA-1; Lysophosphatidic acid receptor Edg-2; Rec1.3; | LPAR1; EDG2 LPA1; | NP_776472.1; | 364 | cow |
