Where part of the creditor's right is transterred before the creditor's right secured by the maximum mortgage is determined, the maximum mortgage may not be transferred,except as otherwise agreed upon by the parties. 最高额抵押担保的债权确定前，部分债权转让的，最高额抵押权不得转让，但是当事人另有约定的除外。 Before the creditor's right secured by the maximum mortgage is determined,the mortgagee and the mortgagor may modify the term for determining the creditor's right, the scope of creditor's right and the maximum amount of claim through agreement, provided that such modification shall not have any adverse effect on any other mortgagee. 最高额抵押担保的债权确定前，抵押权人与抵押人可以通过协议变更债权确定的期间、债权范围以及最高债权额。但是，变更的内容不得对其他抵押权人产生不利影响。